Journal articles: 'Concreto permeable'

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Silva-Juarez, Juan F., Omar Chavez-Alegria, J. Ramon Gaxiola-Camacho, and Jesus R. Millan-Almaraz. "Permeable Concrete Design for Heavy Metal Absorption in Sustainable Roads." Tecnología y ciencias del agua 12, no. 4 (2021): 01–30. http://dx.doi.org/10.24850/j-tyca-2021-04-07.

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OLIVEIRA JUNIOR, Adilson Martins de, and Cláudia Scoton Antonio MARQUES. "ESTUDO DAS RELAÇÕES DE RESISTÊNCIA E CONDUTIVIDADE HIDRÁULICA DO PAVIMENTO PERMEÁVEL ADITIVADO COM POZOLANA." REVISTA FUNEC CIENTÍFICA - MULTIDISCIPLINAR - ISSN 2318-5287 9, no. 11 (October 1, 2020): 1–9. http://dx.doi.org/10.24980/rfcm.v9i11.3369.

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Com o desenvolvimento dos grandes centros urbanos e o aumento das áreas impermeáveis, surge a necessidade de aumentar as áreas permeáveis, sem abrir mão do pavimento de concreto e ainda assim ajudar na drenagem urbana, tirando a sobrecarga dos sistemas de drenagem tradicionais. Desse modo, o objetivo desta pesquisa é comparar dois traços de concreto permeável com as mesmas características físicas e mesmas compactações, mas tendo como diferença o tipo de cimento a ser empregado que serão o CP II-E e o CP II-Z, ambos com 32 MPa de resistência, com isso serão analisadas quais as mudanças na resistência e na permeabilidade dos corpos de prova que podem ocorrer. Serão moldados em laboratório cerca de 6 corpos de prova para ensaios de resistência à compressão e mais 4 corpos para os ensaios de permeabilidade que seguiram as especificações da NBR 16416 com algumas adaptações e foram cronometrados o tempo que o corpo de prova demorava para absorver certa quantidade de água e usando uma fórmula disponível na mesma norma. Os resultados indicam que não houve diferenças significativas entre os traços comparados, porém a resistência de ambos foram superiores às observadas em outras pesquisas e notou-se que os traços feitos com o CP II-Z tiveram uma ligeira vantagem, mas ainda ficam empatados com o outro traço. No quesito de permeabilidade, ambos têm um ótimo desempenho, pois atendem aos critérios mínimos da NBR 16416. Conclui-se que a comparação entre esses dois cimentos não mostrou tantas diferenças significativas, porém foi observado que a compactação e cura são elementos fundamentais para agregarem resistência aos pavimentos drenantes. Com isso, é possível ampliar o leque de aplicações para que no futuro se possa adotar o pavimento permeável até mesmo em vias públicas e rodovias. A STUDY OF THE RELATIONSHIP BETWEEN STRENGTH AND HYDRAULIC CONDUCTIVITY OF THE PERMEABLE PAVING ADDED WITH POZZOLAN ABSTRACT Along with the development of large cities and the increase in impermeable areas, it raises the need for permeable areas expansion without forgoing the concrete paving and after all promoting urban drainage in order to unburden the traditional drainage systems. Accordingly, this study sought to compare two traits of permeable concrete with the same physical characteristics, the same compaction, although they differ in the type of concrete to be applied, they are CP II-E and CP II-Z, both 32 MPa resistant, hence possible changes to occur in strength and permeability of the specimen will be analyzed. In the laboratory, six specimens will be mold for compressive strength testing, and four extra specimens for permeability testing following NBR 16416 standard with some adaptations, we measured the time the specimen takes for absorbing an amount of water, as well as an available formula following the same standards. The results suggest that there were no significant differences between the traits when compared. However, the strength for both was higher when compared to other studies, it was noticed that traits made with CP II-Z presented a slight advantage, nevertheless, they are similar to the other trait. Regarding permeability, both had a great performance, since they meet the minimum NBR 16416 standards. We concluded that the comparison between those concretes had not presented significant differences, though we observed that compaction and drying are key elements to add strength to draining concrete paving. Hence, it is possible to broaden applications in order to adopt permeable paving even for public roads and highways. Keywords: Permeable paving. Drainage. Concrete.

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Lizárraga, Liliana, Francisco Lagarda, and carlos Bigurra. "USO DE TECNOLOGÍAS DE BAJO IMPACTO COMO ALTERNATIVA PARA LA RESTAURACIÓN DEL CICLO HIDROLÓGICO EN ZONAS URBANAS: CAMPUS UNIVERSITARIO DE LA UAEH, COMO CASO DE ESTUDIO." Vivienda y Comunidades Sustentables, no. 5 (January 1, 2019): 23–31. http://dx.doi.org/10.32870/rvcs.v0i5.59.

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El campus universitario presenta problemas hídricos: encharcamientos en época de lluvias, desabasto y cortes de agua. Este trabajo evaluó la posibilidad de restaurar el ciclo hidrológico urbano mediante tecnologías lid en una zona con baja precipitación. Se establecieron las siguientes variables hidrológicas para el diseño: precipitación anual para un año muy seco (181.1 mm), precipitación promedio de 15.09 mm, con máxima de 53 mm y mínima de 0 mm. Se calculó el volumen de agua de lluvia recolectable en azoteas, el coeficiente de escurrimiento (concreto, C= 0.9) y el consumo promedio diario en sanitarios. Se dimensiono el sistema de almacenamiento y el número de días en que se satisface la demanda como agua no potable. Se calculó el volumen de escurrimiento medio (Vm) en estacionamientos y vialidades con superficies asfálticas (C= 0.8) y andadores de concreto (C= 0.9) y se comparó con el Vm si se sustituyeran con pavimento permeable (C= 0.7). Además, se determinó la capacidad de infiltración en áreas verdes.

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Barros, Enicléia Nunes de Sousa, and Saymon Martin Boaventura. "ESTUDO EXPERIMENTAL DO DESEMPENHO DE PAVIMENTOS PERMEÁVEIS COMO ALTERNATIVA DE REDUÇÃO DO ESCOAMENTO SUPERFICIAL EM ÁREAS URBANAS." REEC - Revista Eletrônica de Engenharia Civil 15, no. 2 (June 5, 2020): 300–313. http://dx.doi.org/10.5216/reec.v15i2.61831.

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RESUMO: O processo de urbanização das cidades sem o adequado planejamento de uso do solo provoca uma crescente impermeabilização deste, levando a constantes cheias nos centros urbanos. Entende-se que os sistemas tradicionais de drenagem resolvem apenas parte do problema, pois não agem nas causas mas somente nos efeitos. Nesse sentido o presente trabalho tem como objetivo avaliar o desempenho do pavimento permeável em relação à capacidade de infiltração das águas pluviais, visando à redução do escoamento superficial em áreas urbanas; para isso foi realizada a simulação chuvas para obter o escoamento por meio da equação de precipitação de Palmas-TO, onde foi possível aferir parâmetros de infiltração e escoamento; também foram produzidos e ensaiados blocos em concreto poroso para avaliar sua capacidade de infiltração. Na simulação efetuada sobre o pavimento permeável em blocos intertravados observou-se que ocorreu uma absorção da precipitação nos 9 minutos iniciais; já na simulação realizada sobre os blocos vazados percebeu-se que neste praticamente não ocorreu escoamento superficial. Os blocos em concreto poroso demonstraram uma ótima capacidade de infiltração, conseguindo comportar em seu interior 7,2 litros, o que significa uma infiltração instantânea de 7,2mm de chuva. ABSTRACT: The process of urbanization of cities without the adequate planning of land use causes a growing waterproofing of this, leading to constant floods in urban centers. It is understood that traditional drainage systems solve only part of the problem, as they do not act on causes but only on the effects. In this sense, the present work aims to evaluate the performance of the permeable pavement in relation to the infiltration capacity of rainwater, aiming at reducing surface runoff in urban areas; for this, the simulation was performed rains to obtain the flow through the Palmas-TO precipitation equation, where it was possible to measure infiltration and flow parameters; blocks were also produced and tested in porous concrete to assess their ability to infiltrate. In the simulation carried out on the permeable pavement in interlocked blocks it was observed that precipitation was absorbed in the initial 9 minutes; already in the simulation carried out on the leaked blocks it was noticed that in this practically no surface runoff occurred. The porous concrete blocks demonstrated an excellent infiltration capacity, managing to accommodate 7.2 liters inside, which means an instant infiltration of 7.2mm of rain.

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Brasileiro, Kelly Patrícia Torres Vieira, Bacus de Oliveira Nahime, Michell Macedo Alves, Pâmela Millena Kunan, Vitor Alvares, Igor Soares dos Santos, Janekelly Vilela Santos, and Fausto Arantes Lobo. "CONCRETO PERMEÁVEL COM AGREGADO DA RECICLAGEM DE RESÍDUOS DA CONSTRUÇÃO E DEMOLIÇÃO: REVISÃO BIBLIOGRÁFICA / PERMEABLE CONCRETE WITH AGGREGATE FROM CONSTRUCTION AND DEMOLITION WASTE RECYCLING: LITERATURE REVIEW." Brazilian Journal of Development 6, no. 9 (2020): 73169–80. http://dx.doi.org/10.34117/bjdv6n9-684.

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Valença, Guilherme Sanguinetti, Laecio Guedes do Nascimento, Mariana Melo Meneses, Idlla Holanda Pessoa Pio, Marcelle Ribeiro Costa Cajueiro, Samara Raquel de Sousa Costa, Ana Gabriela Lima Pacífico, and José da Cruz dos Santos Fontes. "ANÁLISE DA VIABILIDADE DO USO DO CONCRETO PERMEÁVEL NA UTILIZAÇÃO DE PAVIMENTO LEVE EM VIAS URBANAS / ANALYSIS OF THE FEASIBILITY OF USING PERMEABLE CONCRETE AS LIGHTWEIGHT SIDEWALK IN URBAN ROADS." Brazilian Journal of Development 7, no. 3 (2021): 28803–16. http://dx.doi.org/10.34117/bjdv7n3-546.

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Żemajtis, Jerzy, Richard E. Weyers, and Michael M. Sprinkel. "Corrosion Protection Service Life of Low-Permeable Concretes and Low-Permeable Concrete with a Corrosion Inhibitor." Transportation Research Record: Journal of the Transportation Research Board 1642, no. 1 (January 1998): 51–59. http://dx.doi.org/10.3141/1642-07.

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The results of a 1.5-yr laboratory study and field investigation of three Virginia bridges are presented. Specimens with fly ash, slag cement, silica fume, silica fume with a corrosion inhibitor, and two specimens (controls) with Virginia Department of Transportation specification concrete (A-4) were built to study diffusion characteristics of these concretes and to estimate corresponding corrosion initiation times. The methodology used to estimate the corrosion initiation times is based on Fick’s Second Law of Diffusion. It uses laboratory concrete diffusion characteristics and cumulative distribution functions of the field surface concentration and diffusion coefficient values. The calculations are performed for various cover depths, and a set of curves is provided for each concrete type and for low, mean, and high values of surface concentration (exposure severity) and diffusion coefficient (concrete quality). The analysis results demonstrate the benefits of using mineral admixtures, especially when combined with a corrosion inhibitor.

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Krishnaraj, L., P. T. Ravichandran, M. V.A.Karthik, N. Satheeshram Avudaiyappan, and . "A Study on Porous Sealing Efficacy of hydrophilic Admixture on Blended Cement Concrete." International Journal of Engineering & Technology 7, no. 2.12 (April 3, 2018): 446. http://dx.doi.org/10.14419/ijet.v7i2.12.11514.

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The life of the concrete is strongly influenced by durability parameters. The permeability is one of the main characteristics influencing the durability of concrete. The concrete is more permeable due to the ingress of water, oxygen, chloride, sulphate, and other potential deleterious substances. The durability of concrete is mainly affected by pore structure system of concrete and addingthe supplementary cementitious materials (SCM), such as fly ash, slag cement, and silica fume can be decrease permeability. Crystalline technology enhances the strength of concrete by filling the poresand micro-cracks with non-dissolvable substances. To study the efficiency of crystalline formation in concrete in terms of more permeable should be guaranteed through a specific technique.The effectiveness of crystalline waterproofing system with partial replacement cement by GGBS is studiedin terms of strength and durability. The performance of the two different types of crystalline waterproofing integral admixtures has been studied for compressive strength, Split tensile strength, workability, water permeability, Rapid chloride permeability test and porosity in this paper.The early strength increased in GGBS with crystalline admixture concretes compare to the control concrete. No significant strength reduction is observed in GGBS concretes with crystalline admixture when replaced with 20% and 40% of cement than control concrete.

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Yau Seng Mah, Darrien, Siew Ling Loh, Md Abdul Mannan, and Wan Hashim Wan Ibrahim. "Modelling of Surface Permeation in Multiple-Orifice Permeable Road." International Journal of Engineering & Technology 7, no. 3.18 (August 2, 2018): 40. http://dx.doi.org/10.14419/ijet.v7i3.18.16670.

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A patent-pending StormPav green pavement is introduced here as a form of permeable road, in which the system employed precast concrete pieces as modular units. The pavement layer consists of hexagonal plates with each a service inlet to drain water. This study is exploring the water draining capability or technically surface permeation of these service inlets. Virtual and physical modelling are performed to investigate the service inlets as multiple orifices to permeate surface water of the said permeable road. Both modelling efforts have deduced that the permeable road has 18,000 – 24,000 mm/hr of permeation rate when subjected to a 5-minute red-alert storm (>60mm/hr of intensity). It implies that StormPav green pavement has superior surface permeation against the forming of water ponding and flash flood on roads.

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Hernández Franco, Juan, and Antonio Peñafiel Ramón. "Parentesco, linaje y mayorazgo en una ciudad mediterránea: Murcia (siglos XV-XVIII)." Hispania 58, no. 198 (March 5, 2019): 157. http://dx.doi.org/10.3989/hispania.1998.v58.i198.662.

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El presente estudio se sitúa dentro de una línea que profundiza en los componentes culturales de la familia, poniendo de relieve la estrecha conexión entre el parentesco, los valores y hábitos culturales y la organización social. En concreto, en una ciudad mediterránea de la Monarquía Hispánica (siglos XV-XVIII), Murcia, se hizo del parentesco de linaje un valor de rango distinguido y prestigioso, reservado casi exclusivamente a las familias principales. Para éstas fue un importante capital, de origen bajomedieval, construido a partir de brillantes acciones guerreras; y más tarde, conforme se afianzaba el Estado Moderno, formado a través del servicio al monarca. Y fue importante, sobre todo, por su utilidad social: era un requisito pertinente para acceder a la minoría de los selectos y a los beneficios que proporcionaba su hegemonía. Socialmente la perpetuación de tal situación quedó fuertemente ligada a la del propio linaje. Bien es verdad que éste se podía ver interrumpido por cuestiones negativas como los accidentes biológicos, las tendencias dispersantes de algunos integrantes del parentesco, la traición o la falta de fidelidad a las instituciones de poder superiores y a sus disposiciones, etc. Ahora bien, lo más lógico fueron estrategias positivas de reproducción, y para tal fin entendieron el parentesco como algo más permeable que los estrictos lazos de sangre; prefirieron limitar sus relaciones a un círculo social estrecho, de corte endogámico y homogámico; se insertaron dentro de redes de poder; y manifestaron y activaron un amplio conjunto de símbolos (solar, sangre, emblemas y lemas, capellanías, mayorazgos, sitiales, oficios representativos, escudos de armas....) adecuados a su rango.

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Credali, Lino, and Gianluca Ussia. "Nuevos desarrollos en la aplicación de materiales compósitos en construcciones: sistemas de resinas a base acuosa "bet on tex ipn" y su aplicación en tecnologías FRP y FRCM." Alternativas 17, no. 3 (February 1, 2017): 142–56. http://dx.doi.org/10.23878/alternativas.v17i3.235.

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Los materiales compósitos formados principalmente por fibras de carbón y matrices de resinas poliméricas epoxi han sido utilizados por más de 30 años, alcanzando un alto nivel técnico en todo el mundo. A pesar de los extraordinarios resultados obtenidos con este tipo de resinas, algunas de sus características han sido fuertemente criticadas, teniendo como consecuencia algunas limitaciones en su aplicación y en la definición de soluciones de diseño. Las restricciones de las aplicaciones de las tecnologías basadas en resinas epoxi se deben principalmente a su ausencia de permeabilidad a la humedad, su alta sensibilidad a la humedad durante la aplicación, sus escasas propiedades térmicas con un valor de T.g. de 100 °C y su falta de resistencia a la quema.En nuestra empresa Ardea, hemos llevado a cabo una larga investigación sobre este tema y hemos introducido en el mercado de la construcción un nuevo sistema de resinas a base acuosa, Betontex IPN, los cuales están basados en estructuras poliméricas interpenetradas. Betontex IPN es un sistema de resinas de dos componenes: el Componente A es una sustancia polimérica emulsionada en agua y el Componente B es una segunda fase polimérica presente en un relleno inorgánico microcristalino. Después del mezclado e homogenizado, el material resultante es permeable a la humedad y resistente a la quema (de acuerdo a la normativa UNI 9177), con una resistencia térmica más allá de los 180 °C y una temperatura de degradación mayor a 600 °C.Las propiedades de éstas resinas en combinación con refuerzos de fibras de carbón, aramida y vidrio han sido evaluadas en estructuras de mampostería y concreto. Las resinas IPN muestran una gran gama de propiedades interesantes y pueden ser usadas como tecnología FRP en lugar de las resinas epoxi, o como tecnología FRCM, en donde el IPN actúa como promotor de adhesión entre las fibras y el mortero. Otras propiedades de las resinas IPN incluyen buenas propiedades mecánicas, buena adhesión a las fibras, alta compatibilidad y buena adhesión a morteros de cal, concreto, mampostería, madera y mármol. El sistema de resinas IPN puede también ser usado en condiciones húmedas y aplicado sobre superficies mojadas. En los últimos años, las nuevas tecnologías IPN han sido ampliamente usadas para la rehabilitación de estructuras dañadas como consecuencia de los terremotos de 2009 (L’Aquila, Italia) y 2012 (Emilia Romagna, Italia).

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Yan, Lan, Y. M. Xing, and Ji Jun Li. "The Influence on High-Temperature Mechanical Properties of Hybrid-Fiber-Reinforced High-Performance Concrete and Microscopic Analysis." Applied Mechanics and Materials 226-228 (November 2012): 1709–13. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.1709.

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This paper investigated the high temperature mechanical properties of the hybrid fiber reinforced high performance concrete (HFHPC) and normal concrete (NC) .After being subjected to different elevated heating temperatures, two kinds of concretes have been tested for the compressive strength, splitting tensile strength and flexural strength of test specimen at room temperature and 200 °C,400 °C,600 °C,800 °C.Microstructure changes of concrete were also observed by using Scanning Electron Microscopy (SEM) after high temperature. The results show that the hybrid fiber can significantly increase mechanical properties of the concrete at room temperature and high temperature. SEM and XRD analysis shows that there is a permeable diffusion layer in the steel fiber surface because of solid state reaction in the Interfacial Transition Zone of steel fiber and concrete. This permeable diffusion layer is white, bright, serrated and mainly consist of FeSi2 and the complex hydrated calcium silicate. The compounds of this layer change the Interfacial Transition Zone structure, enhance bonding capacity of the steel fiber and matrix, and increase the high temperature mechanical properties of concrete.

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Liu, Xiao Fan, Ting Wang, and Ji Xiang Li. "Experimental Research of the Permeable Concrete with Rigid Polymeric Fibers." Advanced Materials Research 821-822 (September 2013): 1204–7. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.1204.

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In order to improve the hardness and strength of the permeable concrete, rigid polymeric fibers are mixed to the concrete. Compressive strength tests, flexural strength tests, tensile splitting strength tests and permeable performance tests prove that the rigid polymeric fibers could increase the hardness and strength of the permeable concrete. The optimized mix proportion and forming process are recommended to support the application of the permeable concrete.

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Liu, Dong, Xia Liu, Weiwei Han, and Jing Chen. "Research on the anti-Plugging Property of Permeable Concrete Pavement." E3S Web of Conferences 57 (2018): 01002. http://dx.doi.org/10.1051/e3sconf/20185701002.

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Permeable concrete pavement is a kind of porous road, which can allow rainwater to penetrate into the ground and maintain the recyclability of water resources. However, with constantly using, its voids may be blocked with the impurities in the rainwater, such as leaves, silt, etc. If that happens, the permeable function of the permeable concrete pavement will be affected. In this paper, the different structure of the permeable concrete pavement is studied, including the variation trend of the coefficient of permeability in the simulated plugging and the recovery rate of the permeable concrete pavement after cleaning and dredging. The results show that the upper small size coarse aggregate (4.75 mm to 9.5 mm) structure of the porous concrete is conducive to filter out most of the impurities, and it will reinforce the resistance to blocking of permeable concrete. But, it is not easy to recover after blockage, if the upper small size coarse aggregate is too thick. The anti-blocking performance and post-blocking recovery rate of permeable concrete are better, when the upper layer thickness is 15 mm.

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Jang, Young Il, Yun Yong Kim, and Wan Shin Park. "Mechanical Properties of Water-Permeable Concrete Using Coated Recycled Aggregates and Material for Performance Improvement." Advanced Materials Research 831 (December 2013): 258–62. http://dx.doi.org/10.4028/www.scientific.net/amr.831.258.

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The mechanical properties of water-permeable concrete after mixing with coated recycled aggregates, silica fume, and PVA fiber were investigated in this study. Recycled aggregate was coated double-layer and then mixed as the coarse aggregate of water-permeable concrete. As a result, the void ratio, water-permeability coefficient and strength decreased, as compared to concrete with mixed crushed aggregates. When both silica fume and PVA fiber was added, the strength of the water-permeable concrete increased (compressive strength : by 4.3%, flexural strength : by 2.1 times). Also, the freeze and thaw resistance of the water-permeable concrete increased by approximately 44.15% compared to the plain concrete with no added reinforcing element.

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Yang, Z. X., Kyu Hong Hwang, Jeong Bae Yoon, J. O. Kim, and M. C. Kim. "Properties of Permeable Concrete Substrate Having Dual Pore Structures." Materials Science Forum 569 (January 2008): 233–36. http://dx.doi.org/10.4028/www.scientific.net/msf.569.233.

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Porous concretes with continuous voids have been gaining more interest as an ecological material because of their useful functions such as water permeability and adsorption ability. Especially, to make porous concrete much more environmentalized, micropores play a role of nest for microorganism and germs to live in. So micropore distribution and the size of micropores especially open pores are the key point . In this study, the size and distribution of micropores of porous concrete were effected by the AE agents to the cement pastes and then by the treating types, treating times, treating temperatures, and the vacuum pressure during the treating. And another group specimens were added sodium bicarbonate and alum. And then physical properties were examined, digital microscope was also used to observe the micropores sizes and distributions. Cracks were observed on the cement-aggregate joint when the amount and vacuum pressure increased. And high treating temperature shows no good on the bonding of cement paste and aggregate.

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LAKETICH, A., S. K. LAKETICH, and V. V. STROKOVA. "DRAINAGE CONCRETE IN ROAD CONSTRUCTION." Building and reconstruction 90, no. 4 (2020): 104–11. http://dx.doi.org/10.33979/2073-7416-2020-90-4-104-111.

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This paper considers the use of highly permeable concrete, al-so known as drainage, porous, coarse-grained, moisture-permeable, permeable concrete, in road construction, which is a special type of concrete whose porosity is higher than most others. High permeability of water through the body of the concrete structure to the lower layers of the base is achieved due to interconnected pores and voids. Highly permeable concrete pavement is used to reduce local floods in ur-ban areas, acting as a sustainable drainage system. The permeability of permeable con-crete can be reduced during operation due to clogging of pores, this leads to a limitation of the service life of such a coating. The issues of studying the mechanism of clogging and ways to combat it remain open.

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Wang, Cong Feng, Dao Bin Ji, Zhong Qiang Yi, and Liu Liu. "Analysis of High-Permeable Concrete Pavement Heat Transfer Mechanism." Advanced Materials Research 168-170 (December 2010): 859–63. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.859.

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Permeable concrete pavement is experiencing high solar radiation, air temperature, wind speed, rainfall and other natural factors cyclical influences. These factors and the high permeable concrete pavement surface heat exchange, making permeable pavement temperature inside the high instability of the heat generated. In this paper, convection, radiation, heat conduction transfer of three basic ways to analyze the high-permeable concrete pavement of the heat transfer mechanism in order to determine the boundary conditions and numerical simulation of temperature field basis.

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Liu, Jun, and Yanpeng Li. "Runoff Purification Effects of Permeable Concrete Modified by Diatomite and Zeolite Powder." Advances in Materials Science and Engineering 2020 (August 25, 2020): 1–11. http://dx.doi.org/10.1155/2020/1081346.

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Diatomite and zeolite powder exhibit cellular structures that are beneficial to absorb pollutants in road surface runoff. In this work, the runoff purification effects of permeable concrete modified by diatomite and zeolite powder were studied. First, magnesium dihydroxide was used to modify diatomite; then the modified diatomite and the zeolite powder were innovatively adopted as binders to prepare permeable concrete. In addition, compressive strength, effective porosity, purification effect, and environmental scanning electron microscopy (ESEM) tests, as well as gray correlation analysis, were carried out. Finally, the optimal dosages of modified diatomite and zeolite powder in permeable concrete were suggested. The results show that diatomite (modified diatomite) and zeolite powder can improve the compressive strength, effective porosity, and runoff purification effects of permeable concrete. In addition, the 10% modified diatomite and the 3% zeolite powder exhibit the highest correlation with the properties of modified permeable concrete.

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Lin, Jyh Dong, Chen Yu Hsu, Andika Citraningrum, and Putri Adhitana. "The Impact of Different Types of Permeable Pavement Utilization on Air Temperature above the Pavement." Advanced Materials Research 723 (August 2013): 678–85. http://dx.doi.org/10.4028/www.scientific.net/amr.723.678.

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This study investigate permeable pavement utilization and its impact on air temperature by using site measurement, statistical analysis, and Computational Fluid Dynamics (CFD) simulation. National Central University (NCU) main library is the case study for the simulations. Simulations on five pavement types (dense grade asphalt concrete/DGAC, permeable asphalt concrete/PAC, concrete, permeable interlocking concrete block/PICB, and grass block) shows that grass block and PICB can reduce air temperature, while three others increase air temperature.

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Li, Ying, Jian Rong Yang, and Ting Ting Guo. "The Study of Convertibility of Water Cement Ratio in Recycled Water Permeable Concrete." Advanced Materials Research 250-253 (May 2011): 218–21. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.218.

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Take the aggregate as subject, based on the water cement ratio, the compression strength of recycled water permeable concrete and evolution of water permeability with a water cement ratio from 0.30-0.43 was researched. And then optimal proportion of recycled water permeable concrete when the compression strength within 10-15MPa and 15-20MPa, and provide a basis for application of recycled water permeable concrete in urban ecological construction.

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Park, Jaerock, Jaehyun Park, Jonghyun Cheon, Jaehyuk Lee, and Hyunsuk Shin. "Analysis of Infiltrating Water Characteristics of Permeable Pavements in a Parking Lot at Full Scale." Water 12, no. 8 (July 22, 2020): 2081. http://dx.doi.org/10.3390/w12082081.

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Impermeable materials are used for parking lots at apartment complexes and large stores which are concentrated in urban areas. These materials increase the amount of surface runoff by blocking infiltration, resulting in flood damage, dry stream phenomena in rivers in urban watersheds, and the depletion of ground water. In this study, a parking lot plot was constructed to quantitatively evaluate the efficiency of pavements using various materials (impermeable concrete, permeable concrete, and permeable block pavement). Four scenarios of rainfall intensity were simulated using a rainfall simulator within each plot (36 mm h−1, 48 mm h−1, 60 mm h−1, 72 mm h−1). The flow was observed by monitoring the system with a bucket flow meter. The efficiency and flow characteristics of the permeable concrete and block pavement were analyzed. The results were used to calculate the ratio of the surface flow to the infiltrating flow between impermeable and permeable pavements. The permeable concrete had a ratio of 1:0.9, and the permeable block pavement had a ratio of 1:0.58.

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TANAKA, RYOICHI, TAKASHI HABUCHI, TAKAHIKO AMINO, and TSUTOMU FUKUTE. "A STUDY ON IMPROVEMENT AND ITS EVALUATION FOR THE SURFACE LAYER OF CONCRETE PLACED WITH PERMEABLE FORM." International Journal of Modern Physics: Conference Series 06 (January 2012): 664–69. http://dx.doi.org/10.1142/s2010194512003947.

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Permeable form can improve the quality of the surface layer of concrete and can enhance the durability of concrete structures. In this study, the improvement and its evaluation for the surface layer of concrete placed with permeable form were investigated. For these purposes, accelerated carbonation test, chloride ion penetration test, air permeability test, rebound hummer test and water permeability test were conducted using the concrete specimen. As a result, it was found that the air permeability correlates the carbonation depth, chloride ion penetration depth, rebound number and water permeable volume of concrete. Moreover, the possibility that the improvement for the surface layer of concrete can be quantitatively evaluated by air permeability test was shown.

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Wang, Yan, Chuan Jun Li, Ai Qin Zhang, and Xiao Long Wang. "Water Erosion Resistance Performance of the Pervious Recycled Concrete." Materials Science Forum 898 (June 2017): 2060–64. http://dx.doi.org/10.4028/www.scientific.net/msf.898.2060.

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According to the requirement of the special application environment of the pervious recycled concrete on water erosion and permeable ability, related performance affected by water has been studied and evaluated with scouring test method, using MTS810 and surface-dry permeability test. The experimental results showed that the anti-scour ability of recycled permeable concrete was relatively high. The mass loss in the scouring test was only 3.2% of the ordinary concrete under 10 Hz and 0.7 MPa loading conditions. Void ratio was larger than that of the target by the surface-dry permeability test, which fully met the requirements of the permeable concrete.

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Mallela, Jagannath, Leslie Titus-Glover, and Michael I. Darter. "Considerations for Providing Subsurface Drainage in Jointed Concrete Pavements." Transportation Research Record: Journal of the Transportation Research Board 1709, no. 1 (January 2000): 1–10. http://dx.doi.org/10.3141/1709-01.

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Design considerations for pavement subsurface drainage in new or reconstructed jointed concrete pavements are outlined for all components of a permeable base system (permeable bases, separator layers, edgedrains, and outlets). Discussion topics—including guidelines for determining drainage needs, permeable base system components, hydraulic design of permeable base systems, structural design of permeable bases and separator layers, and economic considerations for providing drainage—are arranged to provide a comprehensive picture of the subject area. For topics with established procedures, such as the hydraulic design of permeable bases, a synthesis of information is presented. Where there is a lack of information or a clear consensus among researchers on a topic, new ideas and concepts are proposed.

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26

Ng, Cheng Yee, Anaqi Ratna Narong, Aifaa Balqis Kamarul Zaman, Zahiraniza Mustaffa, Bashar S. Mohammed, and Lee Woen Ean. "Properties of Modified High Permeable Concrete with a Crumb Rubber." Open Civil Engineering Journal 13, no. 1 (July 31, 2019): 82–91. http://dx.doi.org/10.2174/1874149501913010082.

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Background: High permeable concrete is designed with high porosity, which allows water to pass through it. By considering this ability, it has been widely used for various applications including high permeable road pavement. However, to fully adopt highly permeable road pavement technology is challenging due to high cost and maintenance, besides the present engineers and contractors have insufficient expertise and experience with this technology. Henceforth, the high porosity property is highly favorable for road curb applications especially in the tropical region like Malaysia with high rainfall intensity. Objective: This paper aimed to determine the properties of the concrete experimentally, and propose the optimum mix design of high permeable concrete for road curb. Methods: The flow value and setting time of the cement paste were investigated. Next, the effects of the modified high permeable concrete with varying amount of crumb rubber on compressive strength, permeability and void ratio were also investigated. Results and Conclusion: Results have revealed that the workability of the cement paste increases when the water-binder ratio and the amount of fly ash increase. Meanwhile, an increasing amount of cement ratio and crumb rubber lowers the flow value and consequently leads to lower void ratio and permeability. Besides, it has been found that the higher the compressive strength, the lower the void ratio and permeability of the concrete. The research findings support that using an optimum amount of cement replacement with crumb rubber as an additive may increase the performance a high permeable concrete. Herein, the results indicate that the mix design of the concrete studied has the potential to be applied onto the road curb.

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Kim, Yail J., Adel Gaddafi, and Isamu Yoshitake. "Permeable concrete mixed with various admixtures." Materials & Design 100 (June 2016): 110–19. http://dx.doi.org/10.1016/j.matdes.2016.03.109.

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Kia, Alalea, Hong S. Wong, and Christopher R. Cheeseman. "Clogging in permeable concrete: A review." Journal of Environmental Management 193 (May 2017): 221–33. http://dx.doi.org/10.1016/j.jenvman.2017.02.018.

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Kia, Alalea, Hong S. Wong, and Christopher R. Cheeseman. "Defining clogging potential for permeable concrete." Journal of Environmental Management 220 (August 2018): 44–53. http://dx.doi.org/10.1016/j.jenvman.2018.05.016.

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Li, Xiao, and Tong Wang. "Research on the Influence of Water Storage Medium on early Planting Performance of Portland Cement Foamed Concrete." Materials Science Forum 1036 (June 29, 2021): 395–401. http://dx.doi.org/10.4028/www.scientific.net/msf.1036.395.

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Adding sap particle, Portland cement foamed concrete was studied to manufacture a new type of planting material. The pH, porosity, permeable capacity, infiltration rate and water storage were tested for evaluating the performance of foamed concrete. Solid-liquid extraction method and image binaryzation were used to study the pH and porosity of foamed concrete. A kind of self-made permeable device was also used in this paper. It was found that the pH of foamed concrete could be decreased by sap particles absorbed the boric acid solution in 14 d. For the foaming effect of fresh concrete was disturbed by liquid from sap particles, the porosity of foamed concrete was increased and then decreased. Seepage channels could be formed in foamed concrete when sap particles shrunk for releasing liquid and they also would be block for sap particles expanding when water permeated into foamed concrete. The permeable capacity and infiltration rate were decreased with increasing sap particles. The water storage of foamed concrete was fluctuated with sap particles increasing but more than that without sap particles. The optimal dosage of sap particles was 0.3wt% of binder material in this study. At the dosage, the minimal pH of foamed concrete could be obtained and performance of that would be good to plant, such as permeable capacity, infiltration rate and water storage.

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Bai, Ai Ming. "Key Construction Technology of Porous Concrete Permeable Base." Applied Mechanics and Materials 587-589 (July 2014): 1162–66. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1162.

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Porous concrete also be called macropterous concrete or porous lean concrete.As a new base material,it is a lean concrete between cement stabilized macadam and ordinary concrete.Based on Luoyang beltway project,this paper describes the composition design of porous concrete,and discusses the combination of construction machinery,technological process,QCS(quality control specification) and test detection of porous concrete permeable base.Also we do research on many technological parameters such as mixing,paving,molding,maintenance in the construction of porous concrete permeable base.This provides a reference on construction technology and its application.

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32

Huang, Xiao Lan, and Jun Xiong. "Performance of Permeable Asphalt Pavement during Rainfall Infiltration." Applied Mechanics and Materials 90-93 (September 2011): 774–77. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.774.

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The purpose of this paper is to summarize the performance of permeable asphalt pavements (PAP) and to recommend future areas of research and development. The development of PAP as an integral part of sustainable drainage systems is reviewed in the context of traditional and modern urban drainage. The difference between the permeable asphalt pavement and the ordinary bituminous concrete pavement is discussed. A description of the seepage calculation model based on the structural characteristics of PAP is presented. And also water level fluctuations of both the water permeable asphalt pavement and the ordinary bituminous concrete pavement are analyzed by comparing their numerical simulation results. Finally the drainage performance of the water permeable asphalt pavement is demonstrated. The long-term effectiveness of permeable pavement as an alternative to traditional impervious asphalt pavement is examined. The simulation results could provide significant guidance for the structure design of water permeable asphalt pavement.

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Basnayake, Kanchani, Abul Fazal Mazumder, Upul Attanayake, and Neal S. Berke. "Assessment of Concrete Curing Duration using Bulk Electrical Conductivity and Porosity." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 10 (July 24, 2020): 261–68. http://dx.doi.org/10.1177/0361198120935114.

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Controlling permeability of concrete is essential for enhancing durability and, thus, the service life. Concrete permeability is affected by the total volume of permeable voids and the continuity of the capillary pore structure. Even though concrete strength is the typical performance parameter used to define a wet curing duration, it is important to maintain wet curing until concrete develops a discontinuous capillary pore structure with a minimum volume of total permeable voids to assure durability. Therefore, the required wet curing period can be defined as the longest duration out from the (i) time to achieve the specified strength, (ii) time to develop a discontinuous capillary pore structure, and (iii) time to develop a minimum volume of total permeable voids. Since concrete strength evaluation methods are well developed, there is a need for developing procedures to evaluate concrete pore structure characteristics to decide on the wet curing duration. This study investigated the use of bulk electrical conductivity and porosity test methods described in ASTM C1760 and C642 to evaluate the (i) time to develop a discontinuous capillary pore structure and (ii) time to develop a minimum volume of total permeable voids, respectively. The suggested procedure of wet curing duration assessment is demonstrated for two concrete mixes: one with only Type I cement and the other with Type I cement and slag.

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34

Yang, Z. X., Jeong Bae Yoon, J. O. Kim, Kyu Hong Hwang, B. S. Jun, J. B. Lee, and M. C. Kim. "Distribution and Shape of the Pores in Water Permeable Concrete." Materials Science Forum 544-545 (May 2007): 227–30. http://dx.doi.org/10.4028/www.scientific.net/msf.544-545.227.

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Porous concretes with continuous voids have been gaining more interest as an ecological material because of their useful functions such as water permeability and adsorption ability. So pore size distribution and the shape of especially open pores are the key point to permeability. In this study, the size and shape of pores of water permeable concrete were primary controlled by the size and shape of aggregates and secondly by the expanding agents to the cement pastes. 2 types of raw coase aggregate, type I and type C which mean fabricated by impact crusher and concrusher, were taken into uses and 3 sizes of aggregate were used, namely 3 to 5mm, 5 to 13 mm, and 13 to 20 mm. The compressive strength was found to be higher when using impact crushed aggregate. And the smaller size of aggregate was used, the higher compressive strength was achieved.

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Zhu, Ping Hua, and Xin Xin Zhang. "Mechanical Properties and Permeability of Previous Color Recycled Aggregate Concrete." Applied Mechanics and Materials 665 (October 2014): 221–24. http://dx.doi.org/10.4028/www.scientific.net/amm.665.221.

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Experimental study was carried out on compressive cube strength, flexural strength and permeability coefficient of color permeable concrete using concrete waste as coarse recycled aggregate. The results show that watercement ratio has significant effect on compressive cube strength, flexural strength and permeability coefficient of color permeable recycled aggregate concrete (RAC).The flexural strength of RAC is improved by polypropylene fiber. The content of pigment from 5% to 10% has no impact on mechanical properties and permeability of RAC.

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36

Vanathi, Dr, Dr K. Radhika, and Ms G. Swetha. "A Sustainable Study on Permeable Concrete using Bagasse Ash and Rice Husk Ash as a Partial Replacement of Cement." E3S Web of Conferences 184 (2020): 01083. http://dx.doi.org/10.1051/e3sconf/202018401083.

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Permeable concrete is a special concrete which consists of cement, coarse aggregate and water. Due to rapid growth of globalization and urbanization, the construction of concrete roads increasing day by day which leads to decrease in percolation of storm water, surface runoff occurring to the decrease in ground water table. In previous concrete, single sized aggregate is used to maintain the void ratio in the concrete. The cement paste is bonded with aggregate with a void ratio of 20%. In this investigation, concrete of M20 grade with water cement ratio of 0.38 is used. The properties of concrete were increased by using Rice husk ash and Bagasse ash in changed percentages (10%, 20%, 30%) by weight of cement and with the combination of rice husk ash and bagasse ash 10% (5%RA + 5%BA), 20%(10%RA+10%BA), 30%(15%RA+15%BA) are used. The compressive strength of cubes, split tensile of cylinders are casted, tested after 7 days and 28 days. After testing, the optimum percentages of replacement of admixtures are found in the Permeable concrete. Therefore the strength and durability properties of permeable concrete with the addition of bagasse ash and rice husk ash with partial replacement of cement are compared with conventional concrete.

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37

Chen, Shuang, Xuechun Lin, Chuanfeng Zheng, Xuedong Guo, and Wuxing Chen. "Evaluation of Siltation Degree of Permeable Asphalt Pavement and Detection of Noise Reduction Degree." Applied Sciences 11, no. 1 (December 31, 2020): 349. http://dx.doi.org/10.3390/app11010349.

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This study mainly uses PFC (particle follow code) to simulate the void characteristics of permeable asphalt mixture, and uses these to simulate the silting process. Then, a tire drop test was used to evaluate the noise reduction performance of permeable asphalt concrete. Finally, a self-made ring rutting test machine was used to simulate the silting process. Through experiments, the following conclusions were obtained: 1. The critical size of the sludge particle size is 0.3 mm–0.6 mm. 2. The quality of the water-permeable asphalt concrete specimens increased by 13% before and after silting, and the porosity of the specimens finally decreased from about 20% to about 8%. The water-permeable function only retained less than 20% of the original, and the water-permeable function was basically lost. 3. By measuring the road noise detection, it was found that the road noise is directly proportional to the degree of blockage of the permeable road. Compared with the original road with a perfect permeable function, the road noise of the completely blocked road increased by about 4 decibels. This study reveals the silting process of permeable asphalt mixture and the key particle size of the silt, which is of great significance for the detection, cleaning and maintenance of permeable asphalt pavements.

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38

Liu, Jia Bin, Hong Gen Qin, Fei Geng, Wei Guo, and Chao Ming Pang. "Effect of Cement-Based Permeable Crystallization Material on the Performance of Deterioration Concrete." Applied Mechanics and Materials 368-370 (August 2013): 905–10. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.905.

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During the long term service, concrete deterioration will occur due to erosion circumstance, load or unload condition, which will have negative effect on its security and durability. This article mainly discusses the effect of cement-based permeable crystallization material on compressive strength, rebound putative strength, carbonization performance, chloride permeability, and frost resistance of deterioration concrete. The result has shown that cement-based permeable crystallization material can effectively improve the strength, carbonization resistance performance and chloride resistance ability, but for the frost resistance is not obvious. We also analyze the function mechanism of the cement-based permeable crystallization material through ESEM observation.

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39

Yankun, Zhang, Li Yue, Wang Hui, and Shi Weili. "Research status of polymer permeable cement concrete." IOP Conference Series: Earth and Environmental Science 371 (December 13, 2019): 042045. http://dx.doi.org/10.1088/1755-1315/371/4/042045.

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40

Ramsey, Andrew J., Megan L. Hart, and John T. Kevern. "Nutrient Removal Rates of Permeable Reactive Concrete." Journal of Sustainable Water in the Built Environment 4, no. 2 (May 2018): 04018004. http://dx.doi.org/10.1061/jswbay.0000850.

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41

Guo, Hui Fang, Zhi Gang Song, and Sheng Yuan Yang. "Corrosion of Permeable Concrete under Simulated Acid Rain." Key Engineering Materials 517 (June 2012): 352–56. http://dx.doi.org/10.4028/www.scientific.net/kem.517.352.

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A long time immersion test of concrete specimens in dilute sulfuric acid is carried out to study the permeable concrete material aging rule under the action of the sulfuric acid. The experiment is designed by uniform design containing 4 factors and 10 levels and the soaking solution pH value is 4.00. To measure acid consumption, titration sulfuric acid with concentration of 0.125mol / L is used to keep original pH value of soaking solution, through which the corrosion rate of specimens can be determined. After certain immersion time, the specimens are dried and weighted and the weight changes of the specimens are recorded. The results show that corrosion rate of permeable concrete shares the same family of corrosion rate functions with those of ordinary concrete and mortar. However, the weight of specimen fluctuates with the soaking time, so that it may not be a proper index of corrosion.

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42

Li, Zi Cheng, Ai Ju Zhang, Min Juan Zhou, and Shu Heng Qiu. "Effect of Co-Doped Steelmaking Slag and Fly Ash on Performance of Permeable Concrete." Advanced Materials Research 941-944 (June 2014): 751–55. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.751.

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The effect of steelmaking slag and fly ash as multi additives on permeability and mechanical properties of permeable concrete was investigated. The results show that multi binder with fly ash, steelmaking slag and cement has a significant impact on the permeability and compressive strength of permeable concrete specimen. When the co-doped admixture is added with fly ash (15 wt.% ) and steelmaking slag (10 wt.%), good mechanical properties and high permeability coefficient were obtained. Fly ash and steelmaking slag has a micro-aggregate filling effect on the concrete interface.

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Dishan, Yang, Yan Tongyu, Lin Yubin, Li Jiyu, Ruan Xiaofei, Zhou Hong, and Shi Jianguang. "Study on the compensating calcium ion method for existing concrete based on crystal infiltration waterproof materials." E3S Web of Conferences 293 (2021): 02059. http://dx.doi.org/10.1051/e3sconf/202129302059.

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The quality of the the existing concrete surface in its repairing and strengthening is the key factor affecting the together working performance. The effective method to solve this problem is to use permeable crystal waterproof material to strengthen the existing concrete surface. In view of the existing old concrete which lacks free Ca2+ in the interior, the method of compensating calcium ion strengthening is proposed based on the action mechanism of permeable crystalline waterproof material. On the basis of DPS, calcium ion compensating agent Ca (OH)2, Na2SiO3 (sodium silicate) and Na2CO3 (potassium carbonate) solutes are added to prepare composite reinforcement solution for impregnation strengthening of concrete. Scanning electron microscopy (SEM) was used to observe the microstructure of the concrete before and after strengthening. It showed that after the entry of silicate ions, C-S-H colloid was formed by reaction with Ca (OH)2, and C-S-H gel blocked some pores, which made the inner microstructure more compact. The results of compressive strength before and after concrete strengthening show that the strengthening effect of calcium ion compensation method for low-strength concrete is better than that of permeable crystallization material strengthening method. The strength of C5 and C15 grade concrete is increased by 36.1% and 6% respectively, and the surface strength of 13.7 MPa concrete is increased by 16.7%.

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44

Qin, Yinghong, Haifeng Yang, Zhiheng Deng, and Jiang He. "Water Permeability of Pervious Concrete Is Dependent on the Applied Pressure and Testing Methods." Advances in Materials Science and Engineering 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/404136.

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Falling head method (FHM) and constant head method (CHM) are, respectively, used to test the water permeability of permeable concrete, using different water heads on the testing samples. The results indicate the apparent permeability of pervious concrete decreasing with the applied water head. The results also demonstrate the permeability measured from the FHM is lower than that from the CHM. The fundamental difference between the CHM and FHM is examined from the theory of fluid flowing through porous media. The testing results suggest that the water permeability of permeable concrete should be reported with the applied pressure and the associated testing method.

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45

Lund, M. S. M., K. K. Hansen, A. H. Jensen, E. Mølgaard, and P. K. Madsen. "Self-Compacting Pervious Concrete Mix Design for Permeable Concrete Soakaway Rings." Advances in Civil Engineering Materials 7, no. 1 (July 1, 2018): 20170153. http://dx.doi.org/10.1520/acem20170153.

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Kim, Byoungil, and Jung-Youn Lee. "Relationships between mechanical and transport properties for fiber reinforced concrete." Journal of Composite Materials 46, no. 13 (October 17, 2011): 1607–15. http://dx.doi.org/10.1177/0021998311421691.

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This study investigated the mechanical and transport properties of the important factors of fiber-reinforced concrete (FRC) for the design of durable concrete structures. The fibers that are commonly used in industry, such as 1% steel, 0.5% polypropylene (PP), and 0.75% polyvinyl alcohol (PVA) fibers, were evaluated. The addition of PP, PVA, and steel fibers, as they have been known, had little or no effect on compressive and tensile strengths but significantly affected postcracking behaviors and the critical transport mechanisms. The change of the permeable pores seems to depend on the material property of fibers between the fiber and the matrix interface. Among the fiber types used in this study, hook end steel fibers showed the best performance for both the mechanical and transport properties. Generally, as the permeable pore spaces increased, the strength as well as the resistance of transport properties also decreased. However, the effect of the permeable voids on the transport properties was much greater than that of the compressive strength. When the transport properties obtained are employed for the design of durable FRC, major properties such as the permeable voids and absorption by capillary action are important factors to be considered first for resisting movement of harmful substances into concrete.

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Kobayashi, T., M. Kagata, T. Kodama, and M. Ito. "Development of Environment-Friendly Hybrid Permeable Concrete Pavement." Concrete Journal 39, no. 3 (2001): 36–43. http://dx.doi.org/10.3151/coj1975.39.3_36.

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48

Dai, Shengnan, Xianghao Wu, Haoran Zhou, Wei Li, Xingquan Jiang, and Binghan Liang. "Experimental Study on Mechanical Properties of Permeable Concrete." IOP Conference Series: Earth and Environmental Science 233 (February 26, 2019): 032037. http://dx.doi.org/10.1088/1755-1315/233/3/032037.

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Mageswari, M., M. P. Karthikeyan, S. Pavithran, M. Raj kumar, and R. Govinda rajan. "High Strength Permeable Pavement using no Fines Concrete." International Journal of Civil Engineering 3, no. 3 (March 25, 2016): 62–66. http://dx.doi.org/10.14445/23488352/ijce-v3i3p111.

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Hussin, Manal, Zhu Ge Yan, Frank Bullen, and Weena Lokuge. "Investigation of Some Fundamental Properties of Permeable Concrete." Advanced Materials Research 487 (March 2012): 869–73. http://dx.doi.org/10.4028/www.scientific.net/amr.487.869.

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This paper presents the outcomes from a laboratory based research study undertaken to evaluate the fundamental properties of permeable concrete, including compressive strength, global and local strain, elastic modulus (stiffness), porosity and permeability. Six permeable concrete mixtures were made with constant water - cement ratio of 0.34, using different aggregate sizes and sand percentages. The compressive strength range was 15-35 MPa, while the permeability varied between 1.5 to 5.5mm/s and the porosity varied between 25 to 35 %. Two testing methods were used to measure the strain and modulus of elasticity (MOE) of the permeable concrete namely, platen-to-platen method and strain gauge method. Considerable difference was found between the MOEs obtained by the two methods. The MOE determined using the platen-to-platen method consistently were lower in value, which has been attributed to the softness of the capping components, the interface between the specimens and the platen and overall machine compliance. The pore characteristics and their distribution were seen to have an influence on the material responses such as material stiffness and strain. A comparison drawn between the axial strain obtained by the strain gauge measurement and that deduced from the platen-to-platen measurement was undertaken to evaluate the strain homogeneity along with possible detection of the localization phenomena.

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Journal articles on the topic 'Concreto permeable'

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