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Journal articles on the topic 'Structural Lightweight Concrete'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 June 2025

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1

Zach, J., J. Bubeník, and M. Sedlmajer. "Development of lightweight structural concrete with the use of aggregates based on foam glass." IOP Conference Series: Materials Science and Engineering 1205, no. 1 (2021): 012014. http://dx.doi.org/10.1088/1757-899x/1205/1/012014.

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Abstract Lightweight concretes are increasingly being used in the construction industry, either for the overall lightweighting of the structure itself, reducing material consumption for construction and thus CO2 emissions, or for specific reasons such as improving the thermal insulation properties of the structure or acoustic properties. Today, lightweight concretes with lightweight expanded aggregates (expanded clay, agloporite) are most commonly used. This paper deals with the production of lightweight concretes lightweighted with foamed glass-based aggregates. Foamed glass is a lightweight

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Wongkvanklom, Athika, Patcharapol Posi, Banlang Khotsopha, et al. "Structural Lightweight Concrete Containing Recycled Lightweight Concrete Aggregate." KSCE Journal of Civil Engineering 22, no. 8 (2017): 3077–84. http://dx.doi.org/10.1007/s12205-017-0612-z.

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Raupov, Ch.S. Malikov G.B. Zokirov J.J. "FOREIGN EXPERIENCE IN THE USE OF HIGH-STRENGTH EXPANDED CLAY CONCRETE IN BRIDGE CONSTRUCTION (LITERATURE REVIEW)." EURASIAN JOURNAL OF ACADEMIC RESEARCH 2, no. 10 (2022): 125–40. https://doi.org/10.5281/zenodo.7119543.

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The paper presents foreign experience in the use of high–strength expanded clay concrete in bridge structures, sets the average density ranges according to the European standard EN 206-1 for structural lightweight concrete, world experience in the development of lightweight concretes with increased strength and prospects for the development of high-strength lightweight concrete, the benefits of using lightweight concrete in bridge construction, a tendency to increase the proportion of structural lightweight concrete with a strength of 45 - 70 MPa in bridge construction. Based on the anal

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Resende, Douglas Mol, José Maria Franco de Carvalho, Bárbara Oliveira Paiva, Gustavo dos Reis Gonçalves, Lais Cristina Barbosa Costa, and Ricardo André Fiorotti Peixoto. "Sustainable Structural Lightweight Concrete with Recycled Polyethylene Terephthalate Waste Aggregate." Buildings 14, no. 3 (2024): 609. http://dx.doi.org/10.3390/buildings14030609.

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Plastic is a widely consumed material with a high decomposition time, occupying significant space in landfills and dumps. Thus, strategies to reuse plastic waste are imperative for environmental benefit. Plastic waste is a promising eco-friendly building material for cement-based composites due to its reduced specific gravity and thermal conductivity. However, this waste reduces the composites’ mechanical strength. This work aims to produce and evaluate lightweight concretes made with only lightweight aggregates and mostly recycled plastic aggregates. Initially, an optimized dosage approach fo

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Khoshvatan, Mehdi, and Majid Pouraminia. "The Effects of Additives to Lightweight Aggregate on the Mechanical Properties of Structural Lightweight Aggregate Concrete." Civil and Environmental Engineering Reports 31, no. 1 (2021): 139–60. http://dx.doi.org/10.2478/ceer-2021-0010.

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Abstract In the paper, the effects of different percentages of additives (perlite, LECA, pumice) on the mechanical properties of structural lightweight aggregate concrete were tested and evaluated. For the research, 14 mixing designs with different amounts of aggregate, water, and cement were made. Experimental results showed that the specific gravity of lightweight structural concrete made from a mixture of LECA, pumice, and perlite aggregates could be 25-30% lighter than conventional concrete. Lightweight structural concrete with a standard specific gravity can be achieved by using a combina

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Alqahtani, Fahad K. "A Sustainable Alternative for Green Structural Lightweight Concrete: Performance Evaluation." Materials 15, no. 23 (2022): 8621. http://dx.doi.org/10.3390/ma15238621.

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The use of structural lightweight concrete in the construction industry is on the rise in the last few decades mainly because of the higher strength per unit density, as it reduces the total deal load of the structural elements as compared with normal strength concrete. In addition, the environmental concerns of the concrete industry have gained supreme importance in recent times, demanding vital and effectual steps. In this regard, the current study was carried out to formulate an alternative approach for producing a sustainable lightweight structural concrete. The study followed two stages:

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Křížová, Klára, Jan Bubeník, and Martin Sedlmajer. "Use of Lightweight Sintered Fly Ash Aggregates in Concrete at High Temperatures." Buildings 12, no. 12 (2022): 2090. http://dx.doi.org/10.3390/buildings12122090.

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This study addresses the issue of the resistance to high temperatures of lightweight concrete lightweighted with sintered fly ash aggregate. Lightweight concretes with different amounts of lightweighting and their properties after loading temperatures of 600, 800 and 1000 °C were investigated. In particular, the effect of high temperature on the mechanical properties of the concrete was determined on the test specimens, and the effect on the microstructure was investigated by X-ray diffraction analysis and scanning electron microscopy. It was found that there is an increase in compressive stre

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Ramesh, Kumar. "Utilizing pumice for enhanced structural lightweight concrete." i-manager's Journal on Structural Engineering 11, no. 4 (2023): 13. http://dx.doi.org/10.26634/jste.11.4.19793.

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The work studied the use of special concrete, specifically lightweight concrete, by incorporating pumice as a natural aggregate. One significant disadvantage of nominal concrete is its high dead load, or self-weight, which makes it economically inefficient as a structural material. In contrast, lightweight concrete, with its low density, offers advantages such as reduced dead loads and improved thermal insulation. This reduced density is achieved by partially replacing the coarse aggregate with pumice in the concrete mix. The investigation aimed to compare nominal concrete with lightweight con

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Paskachev, A. B., T. G. Rzhevskaya, S. A. Stel'makh, E. M. Shcherban, L. D. Mailyan, and A. L. Mailyan. "Comparison of the effectiveness of microsilica modification of lightweight concretes with coarse aggregates from various rocks." Izvestiya vuzov. Investitsii. Stroitelstvo. Nedvizhimost 14, no. 1 (2024): 82–95. http://dx.doi.org/10.21285/2227-2917-2024-1-82-95.

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A promising line of research in construction science and practice is the creation of lightweight concretes. They exhibit the so-called strength-density ratio, i. e. a relative characteristic between the strength and weight of the resulting concrete. This ratio simultaneously reflects the maximum possible weight reduction of the structure and its operational reliability. The research aims to compare the effectiveness of microsilica modification of lightweight concretes produced with coarse aggregates from various rocks. The study analyzed the existing scientific literature on lightweight concre

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Przychodzień, Patrycja, and Jacek Katzer. "Properties of Structural Lightweight Aggregate Concrete Based on Sintered Fly Ash and Modified with Exfoliated Vermiculite." Materials 14, no. 20 (2021): 5922. http://dx.doi.org/10.3390/ma14205922.

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Despite the undoubted advantages of using lightweight concrete, its actual use for structural elements is still relatively small in comparison to ordinary concrete. One of the reasons is the wide range of densities and properties of lightweight aggregates available on the market. As a part of the research, properties of concrete based on sintered fly ash were determined. The ash, due to its relatively high density is suitable to be used as a filler for structural concretes. Concrete was based on a mixture of sintered fly ash and exfoliated vermiculite aggregate also tested. The purpose of the

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Khamza, Yerlan Y., Maratbek T. Zhuginissov, Erzhan I. Kuldeyev, Zhanar O. Zhumadilova, and Ruslan E. Nurlybayev. "Improving Lightweight Structural Tuff Concrete Composition Using Three-Factor Experimental Planning." Infrastructures 9, no. 8 (2024): 124. http://dx.doi.org/10.3390/infrastructures9080124.

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Research into lightweight structural concrete using volcanic tuff is of great importance to the construction industry. These materials have excellent thermal insulation properties, which helps improve the energy efficiency of buildings. A three-factor experimental design was used to build the statistical model. The test methods used were methods for determining the crushability of volcanic tuff, determining the average density, compressive strength and thermal conductivity of lightweight structural concrete. The influence of basalt fiber on the properties of lightweight structural concrete has

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Gomes, Maria da Glória, José Alexandre Bogas, Sofia Real, António Moret Rodrigues, and Rita Machete. "Thermal Performance Assessment of Lightweight Aggregate Concrete by Different Test Methods." Sustainability 15, no. 14 (2023): 11105. http://dx.doi.org/10.3390/su151411105.

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Structural lightweight aggregate concrete is currently an alternative to normal-weight concrete when thermal insulation properties are required to meet the objectives of energy efficiency and sustainability. The accurate evaluation of the thermal performance is thus essential for designing structural lightweight concrete elements. This paper aims to evaluate the thermal behavior of structural lightweight aggregate concrete, assessed through different tests methods. To this end, a vast experimental campaign was carried out involving specimens produced with several types of lightweight aggregate

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Aslam, Muhammad, Payam Shafigh, and Mohd Zamin Jumaat. "Structural Lightweight Aggregate Concrete by Incorporating Solid Wastes as Coarse Lightweight Aggregate." Applied Mechanics and Materials 749 (April 2015): 337–42. http://dx.doi.org/10.4028/www.scientific.net/amm.749.337.

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Structural lightweight aggregate concrete offers several benefits as compared to the normal weight concrete. Most common methods of producing structural lightweight concrete is by using artificial lightweight aggregates. However, the cost of the production of artificial lightweight aggregates is high due to energy and raw materials consumption. The use of waste and by-product materials as lightweight aggregate in concrete can provide a better solution to reducing the negative impact of the concrete industry. This paper reports an investigation to produce structural lightweight aggregate concre

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Zhuginissov, M., Y. Kuldeyev, R. Nurlybayev, Y. Orynbekov, Y. Khamza, and A. Iskakov. "Lightweight structural thermal insulation concrete using TPP ash." Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex Use of Mineral Resources 336, no. 1 (2025): 74–85. https://doi.org/10.31643/2026/6445.07.

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The article presents the results of developing lightweight structural concretes based on ash-slag waste from the Almaty Thermal Power Plant-2. The ash-slag aggregates were produced using both firing and non-firing (clinker) technologies. The fired aggregates, obtained with the use of bentonite clay, exhibited a bulk density of 530–640 kg/m³ and a strength of 1.8–4.8 MPa. The non-fired aggregates based on Portland cement had a density of 644–690 kg/m³ and a strength of 1.79–2.98 MPa, while those based on liquid glass showed a density of 562–642 kg/m³ and a strength of 1.93–3.8 MPa. Using the ob

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Domagała, Lucyna. "Durability of Structural Lightweight Concrete with Sintered Fly Ash Aggregate." Materials 13, no. 20 (2020): 4565. http://dx.doi.org/10.3390/ma13204565.

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The aim of this study was to present the problem of durability of structural lightweight concrete made of a sintered fly ash aggregate. The issue of durability was researched for 12 concrete series in terms of their water absorption, water permeability, and freeze-thaw resistance. Additionally, the microstructure of several concretes was analyzed with a scanning electron microscope (SEM). In the durability research, the influences of the following parameters were taken into consideration: The initial moisture content of sintered fly ash (mc = 0, 17–18, and 24–25%); the aggregate grading (4/8 a

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Hoang Minh, Duc, and Ly Le Phuong. "Effect of matrix particle size on EPS lightweight concrete properties." MATEC Web of Conferences 251 (2018): 01027. http://dx.doi.org/10.1051/matecconf/201825101027.

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Expanded polystyrene lightweight concrete is a composite which can be made by adding expanded polystyrene aggregate in normalweight concrete (as matrix). The research was focused on the effect of properties and volume of the matrix on the properties of lightweight concrete. The results show that properties of structural polystyrene concrete, such as workability and compressive strength, depend on the aggregate size of the matrix. It also shows that decreasing aggregate size of the matrix is the effective way to increase workability and compressive strength of lightweight concrete. When the den

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Bodnárová, Lenka, Jitka Peterková, Jiri Zach, and Kateřina Sovová. "Determination of Thermal Conductivity on Lightweight Concretes." Key Engineering Materials 677 (January 2016): 163–68. http://dx.doi.org/10.4028/www.scientific.net/kem.677.163.

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A range of testing methods were used to study the potential structural changes as a result of the effects of high temperatures on lightweight types of concrete developed above all for fire resistant structures. One such test for monitoring changes in concrete structures is the non-stationary determination of the coefficient of thermal conductivity using the hot wire method. The matrix structure progressively collapses as a result of the effects of high temperatures on the concrete structure ́s surface because erosion takes place of the matrix and aggregate porous structures. The degradation of

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Medvedeva, G., and A. Lifant'eva A.F. "THE RESEARCH OF MULTILAYER OUTER FENCING INCLUDING MATERIALS USING ASH AND SLAG WASTE OF THERMAL POWER PLANTS." Construction Materials and Products 3, no. 2 (2020): 29–35. http://dx.doi.org/10.34031/2618-7183-2020-3-2-29-35.

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the most important direction of resource saving in construction is the widespread use of secondary material resources, which are waste products. The use of secondary products of industry as raw materials for the production of various building materials is very important, because it provides production with rich sources of cheap and, often, already prepared raw materials; lead to lower costs for the production of some building materials, and therefore saves capital investments intended for the construction of buildings and structures; release large areas of land and reduce the impact on the env

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Thienel, Karl-Christian, Timo Haller, and Nancy Beuntner. "Lightweight Concrete—From Basics to Innovations." Materials 13, no. 5 (2020): 1120. http://dx.doi.org/10.3390/ma13051120.

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Lightweight concrete has a history of more than two-thousand years and its technical development is still proceeding. This review starts with a retrospective that gives an idea of the wide range of applications covered by lightweight concrete during the last century. Although lightweight concrete is well known and has proven its technical potential in a wide range of applications over the past decades, there are still hesitations and uncertainties in practice. For that reason, lightweight aggregate properties and the various types of lightweight concrete are discussed in detail with a special

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Shah, Syed Jahanzaib, Asad Naeem, Farzad Hejazi, Waqas Ahmed Mahar, and Abdul Haseeb. "Experimental Investigation of Mechanical Properties of Concrete Mix with Lightweight Expanded Polystyrene and Steel Fibers." CivilEng 5, no. 1 (2024): 209–23. http://dx.doi.org/10.3390/civileng5010011.

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The demand for lightweight aggregates in concrete compositions for diverse structural and non-structural applications in contemporary building construction has increased. This is to achieve a controllable low-density lightweight concrete, which reduces the overall structural weight. However, the challenge lies in achieving an appropriate strength in lightweight concrete while maintaining a lower unit weight. This research aims to evaluate the performance of lightweight concrete by integrating expanded polystyrene (EPS) as a partial replacement for coarse aggregate. Test specimens were cast by

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Inozemtcev, Alexandr Sergeevich, and Evgeniy Valerjevich Korolev. "Technical and Economical Efficiency for Application of Nanomodified High-Strength Lightweight Concretes." Advanced Materials Research 1040 (September 2014): 176–82. http://dx.doi.org/10.4028/www.scientific.net/amr.1040.176.

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The development of construction technologies is impossible without the proper estimation of economical efficiency. Some results of technical and economical efficiency of the developed high-strength structural lightweight concretes are presented in the article. Overview concerning world practice of research and application of lightweight concrete composition are made. The main properties and advantages of developed energy efficient high-strength lightweight concretes are described. The method of calculation of economic efficiency of concrete by means of reduction of total construction weight an

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Alqahtani, Fahad K., and Idrees Zafar. "Exploring the Effect of Different Waste Fillers in Manufactured Sustainable Plastic Aggregates Matrix on the Structural Lightweight Green Concrete." Sustainability 15, no. 3 (2023): 2311. http://dx.doi.org/10.3390/su15032311.

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The infrastructure demands for mega cities, urbanization and environmental concerns are pushing for smart and sustainable solutions. Structural lightweight concrete is gaining popularity in the concrete industry because of its intrinsic properties of resisting the load and being lighter in weight. Therefore, in this study, a green structural lightweight concrete was targeted by fabricating a plastic-based aggregate incorporating different industrial by-products to reduce the carbon tracks along with an alternate lightweight structural material. Thus, the compatibility of the different industri

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Lee, Yeong Huei, Yee Yong Lee, and Shi Yee Wong. "Thermal characteristics of structural lightweight concrete." Journal of Architectural Environment & Structural Engineering Research 6, no. 1 (2023): 14–16. http://dx.doi.org/10.30564/jaeser.v6i1.5557.

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Ozyildirim, H. Celik, and Harikrishnan Nair. "Durable Concrete Overlays in Two Virginia Bridges." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 27 (2018): 78–87. http://dx.doi.org/10.1177/0361198118777606.

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The purpose of this study was to implement innovative concretes with low permeability and reduced cracking potential in overlays to reduce chloride infiltration into the bridge decks. Two parallel bridges on Route 64 over Dunlap Creek in Alleghany County, Virginia, were selected for this study. For low cracking potential, relatively low water contents, shrinkage reducing admixtures, and lightweight aggregates were used. For low permeability, concretes had supplementary cementitious material and relatively low water–cementitious material ratios. In the overlays, five different materials were us

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Patchen, Andrew, Stephen Young, Logan Goodbred, Stephen Puplampu, Vivek Chawla, and Dayakar Penumadu. "Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation." Materials 16, no. 15 (2023): 5451. http://dx.doi.org/10.3390/ma16155451.

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The production of concrete leads to substantial carbon emissions (~8%) and includes reinforcing steel which is prone to corrosion and durability issues. Carbon-fiber-reinforced concrete is attractive for structural applications due to its light weight, high modulus, high strength, low density, and resistance to environmental degradation. Recycled/repurposed carbon fiber (rCF) is a promising alternative to traditional steel-fiber reinforcement for manufacturing lightweight and high-strength concrete. Additionally, rCF offers a sustainable, economical, and less energy-intensive solution for infr

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Al-Dikheeli, Mohammed Riyadh, Hasanein M. Thaib, and Layth AbdulRasool Alasadi. "Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregate." Open Engineering 12, no. 1 (2022): 323–31. http://dx.doi.org/10.1515/eng-2022-0019.

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Abstract This work intends to make structural lightweight aggregate concrete by using artificial expanded clay aggregate with different replacement levels from normal coarse aggregate and improve it with a high-performance superplasticizer to increase its strength. The mechanical characteristics covered in the present work were compressive strength, flexural strength, and splitting tensile strength in addition to freezing and thawing resistance. Different densities were found for all mixes ranging between normal and lightweight concrete and that depends on the replacement of normal aggregate w

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Badar, Sajjad abdulameer, Laith Shakir Rasheed, and Shakir Ahmed Salih. "The Structural Characteristics of Lightweight Aggregate Concrete Beams." Journal of University of Babylon for Engineering Sciences 27, no. 2 (2019): 64–73. http://dx.doi.org/10.29196/jubes.v27i2.2293.

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This paper aims to investigate the structural behavior of reinforced lightweight concrete beams. Attapulgite aggregate and crushed clay brick aggregate were used as coarse lightweight aggregate to produce structural lightweight aggregate concrete with 25 Mpa and 43.6 Mpa cube compressive strength and 1805 Kg/m3 and 1977 Kg/m3 oven dry density respectively. The result of reinforced lightweight concrete beams compared with reinforced normal weight concrete beams, which have 50.5 Mpa cylinder compressive strength and 2317 Kg/m3 oven dry density. For each type of concrete two reinforced concrete b

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Higuera-Flórez, Camilo, Jhon Cárdenas-Pulido, and Adriana Vargas-Aguilar. "Mechanical and durability performance of lightweight concrete (LWC) from colombian thermally expanded clay aggregates." Scientia et Technica 27, no. 3 (2022): 167–76. http://dx.doi.org/10.22517/23447214.24726.

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Lightweight concrete (LWC) has become an outstanding material in the construction sector to conform non-structural and structural members into buildings. Expanded clay aggregate is a special type of lightweight aggregate formed by heating clay with little lime content, having low unit weight, high durability, and mechanical strength. Despite the massive use of the expanded clay lightweight aggregate worldwide, their use in the Colombian context is still limited. This research reports the characterization of the behavior of lightweight concrete from Colombian expanded clay aggregates. Experimen

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Inozemtcev, A. S., and E. V. Korolev. "Model of high-strength lightweight concrete." Construction Materials, no. 12 (December 15, 2024): 34–41. https://doi.org/10.31659/0585-430x-2024-831-12-34-41.

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Modeling is a tool of scientific cognition that makes it possible, by replacing the object under study with its representation (model), to explore it and interpret the results on the object itself. Obviously, the material model should allow for the study of the influence of prescription factors on its properties (direct task) or, with established requirements for the material, determine the parameters of the model (values of factors) that ensure the achievement of established requirements (inverse task). In the course of the study, a compounding and structural model of high-strength lightweigh

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Ruchita Rajendra Nibe. "Structural Stability and Strength Analysis of Lightweight Cellular Concrete." Journal of Information Systems Engineering and Management 10, no. 52s (2025): 1037–48. https://doi.org/10.52783/jisem.v10i52s.10982.

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Introduction: Concrete is most important construction materials. Concrete is a material used in building construction, consisting of a hard, chemically inert particulate substance, known as an aggregate that is bonded together by cement and water. Lightweight concrete maintains its large voids and not forming laitance layers or cement films when placed on the wall. This research was based on the performance of aerated lightweight concrete. Lightweight Cellular Concrete (LCC), known for its low density and thermal insulation properties, is increasingly used in modern construction. However, conc

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Chiadighikaobi, Paschal Chimeremeze, Vladimir Jean Paul, and Christopher Kneel Stewart Brown. "The Effectiveness of Basalt Fiber in Lightweight Expanded Clay to Improve the Strength of Concrete Helicoidal Staircase." Materials Science Forum 1034 (June 15, 2021): 187–92. http://dx.doi.org/10.4028/www.scientific.net/msf.1034.187.

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Staircase is a very important structural element found in mostly buildings of more than a floor. The properties of materials and designs used in constructing this structural element are very important. This study addresses the development of ultra-lightweight concrete. How ultra-lightweight concrete can effectively work in helicoidal structure. The flexural strength of this staircase was analysed on a finite element software SCAD. The designed lightweight aggregates concrete is targeted to be used in staircase of a structure having the shape of helicoid. In the concrete, chopped basalt fiber p

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Hu, Wei Xin, and Abulitipu Abudula. "Research on Porous Properties of Air-Entrained Lightweight Aggregate Concrete." Advanced Materials Research 652-654 (January 2013): 1209–12. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.1209.

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Lightweight aggregate concrete with bleed air : the air-entraining agent added to the lightweight aggregate concrete , cement paste to form the porous structure of the porous structure of the right amount of artificial lightweight aggregate concrete . Reduce the density of the concrete to improve the insulation properties of the concrete . Applied to structural insulation concrete strength than 20Mpa, the thermal conductivity is less than 0.36W / ( m • K) . Of lightweight aggregate structure insulation concrete materials properties and microstructure of variation with air entraining agent .

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Yehia, Sherif, and Sharef Farrag. "Variability of Lightweight Aggregate Source: Effect on the Development of High Strength Lightweight SCC Matrix Blended with Normal Weight Aggregate." Concrete Structures 24 (2023): 51–61. http://dx.doi.org/10.32970/cs.2023.1.8.

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Structural lightweight concrete is a valuable alternative to normal weight concrete. Concrete prepared with coarse lightweight aggregate provides reduction of a structure self-weight and better structural performance in regions prone to seismic activities. However, variability of the coarse lightweight aggregate affects production and properties of the concrete. In addition, availability of the aggregate influences the long-term use and stability in the construction industry. Lightweight aggregate is imported from Iran, Turkey, Saudi Arabia, UK, and Greece to the United Arab Emirates (UAE) and

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Yener, Engin. "The effect of pozzolanic mineral additives on the strength and durability properties of structural lightweight concrete." CEBEL Vol 2 Issue 2 April 2021 2, no. 2 (2021): 35–40. http://dx.doi.org/10.36937/cebel.2021.002.005.

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Structural lightweight concretes have the potential to be used in road pavements and bridge decks due to their properties such as sufficient wear resistance, high impermeability, superior freeze-thaw resistance and ductile behavior. However, road pavements are directly exposed to nitric acid and sulfuric acid solutions created by the exhaust gases of transportation vehicles in humid environments. Therefore, the concrete to be used in road pavements must be resistant to these acid effects. In addition, sufficient strength must be guaranteed when used as pavement material. The aim of this study

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Federowicz, Karol, Mateusz Techman, Myroslav Sanytsky, and Pawel Sikora. "Modification of Lightweight Aggregate Concretes with Silica Nanoparticles—A Review." Materials 14, no. 15 (2021): 4242. http://dx.doi.org/10.3390/ma14154242.

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The use of lightweight concrete (LWC) for structural and non-structural applications has attracted great interest in recent years. The main benefits include reduced deadload of structural elements and generally lower production and transportation costs. However, a decrease in concrete density often leads to a decrease in strength and durability. Typically, concretes are mostly modified with mineral additives such as silica fume or fly ash. Because of the recent developments in nanotechnology, research attention has turned to the possibility of improving concrete properties with nanomaterials,

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Radna Kurnia Sari, Rosidawani, Arie Putra Usman, Hanafiah, and Yakni Idris. "The Effects of Fly Ash and Bottom Ash on the Properties of Aerated Concrete under Density-Based Mix Design." Journal of Advanced Research in Applied Sciences and Engineering Technology 34, no. 2 (2023): 99–116. http://dx.doi.org/10.37934/araset.34.2.99116.

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Lightweight concrete has the main characteristic of a lower density value than normal concrete, which ranges from 1400 to 1850 kg/m3 (ACI 213R) [1]. While density values generally show a decreasing trend along with decreasing mechanical properties. This type of lightweight concrete still needs to be improved in its application to elements that function but do not withstand loads (non-structural) due to its low mechanical properties. The main objective of producing lightweight concrete is its density. In contrast, another objective is the mechanical properties related to the use of lightweight

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Vargas, Paola, Natalia A. Marín, and Jorge I. Tobón. "Performance and Microstructural Analysis of Lightweight Concrete Blended with Nanosilica under Sulfate Attack." Advances in Civil Engineering 2018 (June 3, 2018): 1–11. http://dx.doi.org/10.1155/2018/2715474.

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The influence of two lightweight aggregates (LWA) on concrete and the effects of cement substitution for nanosilica (NS) on the interfacial transition zone (ITZ) and cementitious matrix of concrete in resistance to attacks by magnesium sulfate (MgSO4) are researched in this work. The aggregates evaluated were perlite, which is a lightweight aggregate of open porous structure, and expanded clay (aliven) with closed porous structure. The variables included in the study were replacement percentage of coarse aggregates by lightweight coarse aggregates (0 and 100% by volume) and replacement percent

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Basset, R., and S. M. Uzumeri. "Effect of confinement on the behaviour of high-strength lightweight concrete columns." Canadian Journal of Civil Engineering 13, no. 6 (1986): 741–51. http://dx.doi.org/10.1139/l86-109.

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This paper summarizes an experimental investigation into the behaviour of high strength sand – lightweight concrete columns confined with rectangular ties. Fifteen reinforced and three unreinforced specimens were tested under monotonically increasing axial compression. Variables considered in this study were the longitudinal steel distribution and tie configuration, the tie steel spacing, the amount of tie steel, and the amount of longitudinal steel.The results indicated that unconfined high-strength lightweight aggregate concrete is a brittle material. The addition of lateral confining steel

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Assist., Lect Rasha Abd Al-Redha Ghani*. "STRUCTURAL BEHAVIOR OF NO FINE CONCRETE AND LIGHTWEIGHT AGGREGATE CONCRETEREINFORCED WITH STEEL FIBERS." INTERNATIONAL JOURNAL OF RESEARCH SCIENCE & MANAGEMENT 5, no. 4 (2018): 18–25. https://doi.org/10.5281/zenodo.1215952.

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Due to low values of mechanical properties of lightweight concrete , lightweight concrete is rarely used in structural members in buildings or structures , the lowest value of compressive strength can be used for concrete is 17 MPa, thus this investigation  deals with improving the mechanical properties of two types of lightweight concrete , the first type is lightweight aggregate concrete (LWAC), and the second is no-fines concrete  (NFC).The results show that adding steel fibers lead to high increment in flexural and tensile strength in NFC, the flexural strength increased from low

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Badogiannis, Efstratios, Maria Stratoura, Konstantinos Aspiotis, and Alexandros Chatzopoulos. "Durability of Structural Lightweight Concrete Containing Different Types of Natural or Artificial Lightweight Aggregates." Corrosion and Materials Degradation 2, no. 4 (2021): 554–67. http://dx.doi.org/10.3390/cmd2040029.

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Different structural lightweight concrete mixtures of specific density and strength classes were produced by using various lightweight aggregates (LWAs) such as pumice, perlite, and rice husk ash. Their properties were evaluated in fresh and hardened states with regards to compressive strength and durability parameters such as water absorption (open porosity and capillary absorption), chloride’s penetration resistance, and carbonation depth. According to the results, most LWA concrete mixtures performed satisfactorily in terms of the designed strength and density and they could be used as stru

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Zhu, Jun Guang, Xu Huang, and Rong Yue Zheng. "Discussion of Ceramsite Concrete Shaped Column in a Structural System." Applied Mechanics and Materials 188 (June 2012): 205–10. http://dx.doi.org/10.4028/www.scientific.net/amm.188.205.

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Thermal insulation building materials that is both lightweight and high strength is the key to the future of China's construction sector in achieving energy conservation. In terms of building construction, when comparing lightweight aggregate concrete to that of ordinary concrete, light weight aggregate is lighter, has a large structure span, good seismic performance, saving cost and other advantages; Ceramsite concrete is a type of lightweight aggregate concrete. Also because the shaped column is not ridge, is able to increase the amount of usage area, due to being light is energy efficient,

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Parra, Carlos, Eva M. Sánchez, Isabel Miñano, Francisco Benito, and Pilar Hidalgo. "Recycled Plastic and Cork Waste for Structural Lightweight Concrete Production." Sustainability 11, no. 7 (2019): 1876. http://dx.doi.org/10.3390/su11071876.

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The use of waste materials as lightweight aggregates in concrete is highly recommended in seismic risk areas and environmentally recommended. However, reaching the strength needed for the concrete to be used structurally may be challenging. In this study four dosages were assayed: the first two-specimen had high cement content (550 and 700 kg/m3 respectively), Nanosilica, fly ash and superplasticizer. These samples were high performance, reaching a strength of 100MPa at 90 days. The other two mixtures were identical but replaced 48% of the aggregates with recycled lightweight aggregates (30% p

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Agrawal, Yash, Trilok Gupta, Ravi Sharma, Narayan Lal Panwar, and Salman Siddique. "A Comprehensive Review on the Performance of Structural Lightweight Aggregate Concrete for Sustainable Construction." Construction Materials 1, no. 1 (2021): 39–62. http://dx.doi.org/10.3390/constrmater1010003.

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Lightweight aggregate concrete is an innovative building material used to reduce the self-weight of a high-rise building. Recently, the use of lightweight aggregate in construction is increasing immensely due to its performance during an earthquake. Lightweight aggregate concrete (LWAC) is a solution for the achievement of sustainability in the construction sector, which helps us cut down the overall cost of a project in massive construction work (tall buildings and bridges). Additionally, using various industrial by-products and waste instead of natural aggregate allows us to reduce the negat

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Horszczaruk, Elżbieta, Jarosław Strzałkowski, Anna Głowacka, Oliwia Paszkiewicz, and Agata Markowska-Szczupak. "Investigation of Durability Properties for Lightweight Structural Concrete with Hemp Shives Instead of Aggregate." Applied Sciences 13, no. 14 (2023): 8447. http://dx.doi.org/10.3390/app13148447.

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The paper presents the results of testing the performance of lightweight structural concrete containing hemp shives as an aggregate. It has been analysed how the higher binder content and use of the Portland cement affect the thermal and microbiological properties of the lightweight concrete. The aggregates of the plant origin and cement are incompatible because the plant chemical compounds, dissolved in water or an alkaline environment, inhibit cement hydration. To avoid this, mineralisation of the aggregates of plant origin is necessary. The most often used binder in hemp concrete is hydrate

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Salman Daoud, Salman Al-Dulaimi. "THE EFFECT OF VOLCANIC TUFF AND ASH ON THE PROPERTIES OF LIGHTWEIGHT STRUCTURAL CONCRETE." International Journal of Advanced Logistics, Transport and Engineering 8, no. 4 (2023): 1–11. http://dx.doi.org/10.52167/2790-5829-2023-8-4-1-11.

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Currently, one of the most pressing construction problems is the development of cost-effective building materials that, in terms of their technical characteristics, can prevail over existing ones. This article raised the question of the feasibility of using lightweight concrete with volcanic tuff and ash. By reviewing scientific publications and conducting research, the advantages of lightweight concretes, such as low weight, low thermal conductivity, were identified. As a result of the work, the prospect of developing the production of more durable lightweight concrete using volcanic tuff and

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Hammad, Hind Hussein, Zeyad Momtaz Mohamed, and Tmara Rasheed. "Using Attapulgite as a Lightweight Aggregate to Produce Structural and Insulating Concrete." Association of Arab Universities Journal of Engineering Sciences 26, no. 2 (2019): 131–39. http://dx.doi.org/10.33261/jaaru.2019.26.2.016.

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The wide spread of lightweight concrete due to its properties like low density, good thermal insulation, and the economic feasibility of low cost for buildings constructed with this type of concrete. The studies in this field of construction materials have varied, in this research, one types of the lightweight concrete was produced. It is a lightweight aggregate concrete. Crushed attapulgite rocks was used as aggregate which fired at temperature of 700°C and used as partially or completely replacement with ordinary aggregates to production low-density concrete blocks both structural and insula

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Elsherbiny, Esraa A., Mohamed Mortagi, Osama Youssf, Mohamed Abd Elrahman, and Mohamed E. El Madawy. "Influence of Steel and Polypropylene Fibers on the Structural Behavior of Sustainable Reinforced Lightweight Concrete Beams Made from Crushed Clay Bricks." Sustainability 15, no. 19 (2023): 14570. http://dx.doi.org/10.3390/su151914570.

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Structural lightweight concrete is preferred over traditional concrete due to its ability to reduce the dead load, minimize the size of load-bearing structural members, and provide more economical solutions for foundation deteriorations. This research sheds light on sustainable lightweight concrete using waste crushed clay bricks (CCB) as a lightweight aggregate. To reduce micro-crack propagation of the developed concrete, two types of fiber were implemented and investigated. Steel fibers (SF) with amounts of 0.5% and 1.0% by volume of concrete, and polypropylene fibers (PPF) with amounts of 0

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Asgarinia, Khashayar. "The Effect of Nanosilica and Steel Fibers on The Mechanical Behavior of Structural Lightweight Concrete." Journal of Cement Based Composites 4, no. 1 (2023): 1–4. http://dx.doi.org/10.36937/cebel.2023.5790.

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The low strength of lightweight aggregates diminishes the strength of lightweight concrete, and the concrete's fragility impedes the ductile behavior of structures subjected to seismic stresses. The use of reinforcing materials and fibers may increase the strength of lightweight concrete by compensating for the impact of reduced strength caused by the use of lightweight particles and preventing the rapid breakdown of concrete. The performance of the materials used is an effective determinant of structural member behavior. Therefore, for computational analysis of finite elements to accurately a

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M. Shaju, Pragash. "Pumice as a coarse aggregate substitute for lightweight concrete: Strength and density assessment." i-manager's Journal on Structural Engineering 12, no. 3 (2023): 34. http://dx.doi.org/10.26634/jste.12.3.20517.

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This paper investigates the feasibility of using pumice as a substitute for coarse aggregate in lightweight concrete, focusing on its strength and density characteristics. A significant drawback of conventional concrete lies in its substantial dead load, rendering it economically inefficient as a structural material due to its high self-weight. Lightweight concrete, characterized by a lower density, addresses this concern by reducing dead loads and enhancing thermal insulation. This research focuses on achieving density reduction by partially replacing coarse aggregate with pumice in concrete

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Real, Sofia, José Alexandre Bogas, Maria da Glória Gomes, and Beatriz Ferrer. "Thermal conductivity of structural lightweight aggregate concrete." Magazine of Concrete Research 68, no. 15 (2016): 798–808. http://dx.doi.org/10.1680/jmacr.15.00424.

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