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Journal articles on the topic 'Cement-bound mixture'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Chomicz-Kowalska, Anna, and Krzysztof Maciejewski. "Performance of Fly-Ash- and Cement-Bound Granular Mixtures with Dispersed Fiber Reinforcement—A Case Study." Applied Sciences 14, no. 6 (2024): 2618. http://dx.doi.org/10.3390/app14062618.

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This paper investigates the effects of incorporating dispersed fibrous reinforcement in hydraulically bound granular 0/16-mm mixtures. The evaluated fibrous reinforcement comprised a mixture of polypropylene and alkali-resistant glass fibers in a 1:2 weight ratio. The fibrous reinforcement was added to the mixtures in amounts of 0.05% and 0.10% by weight. The prepared mixtures utilized 1% of CEM II/B-V 32.5 R Portland cement together with 3.5%, 7%, and 14% of fly ash, characterized by a high content of reactive calcium oxide. It was found that the fibrous additives had only a small effect on t

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Zvonarić, Matija, Martina Zagvozda, and Ivana Barišić. "Influence of Cement Amount and Rubber Threads on Fatigue of Cement Bound base Course." Athens Journal of Τechnology & Engineering 12, no. 2 (2025): 95–114. https://doi.org/10.30958/ajte.12-2-2.

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Evaluation of cement-stabilized material for use as a pavement bearing course (CBC) is primarily conducted through testing its compressive strength. However, the pavement structure is exposed to cyclic loading induced by traffic, making it susceptible to material fatigue. CBC, as the stiffest course of the pavement structure, is particularly sensitive to the effects of fatigue. Fatigue testing for this material is unconventional and not standardized, and the testing of this property is challenging due to the brittle structure of CBC. Within this study, the fatigue sensitivity of CBC was examin

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Barišić, Ivana, Martina Zagvozda, Ivanka Netinger Grubeša, and Matija Zvonarić. "Waste Rubber-Modified Cement-Bound Base Course: Laboratory Characterisation and Field Application." Applied Sciences 15, no. 4 (2025): 1983. https://doi.org/10.3390/app15041983.

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Within the scientific research project ‘RubSuPave’, a large number of laboratory tests were carried out to investigate the addition of waste rubber (WR) to mixtures of a cement-bound base course (CBC) for pavement construction. For mixtures consisting of gravel aggregate, sand, cement (at 3%, 5%, and 7% by mass) and various sand replacements with WR (0%, 10%, 20%, 30% and 40% volume) additions, the compaction characteristics, compressive strength, and resistance to freezing and thawing (F/T) were determined. The results show that compressive strength is negatively affected by the addition of W

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4

Dulaimi, Omar I., and Ahmed Hilal Farhan. "Combined effect of fiber and degree of stabilization on the early age behavior of cement bound granular mixtures." IOP Conference Series: Earth and Environmental Science 1374, no. 1 (2024): 012080. http://dx.doi.org/10.1088/1755-1315/1374/1/012080.

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Abstract An investigation has been undertaken to study the effect of fiber-reinforcement and different degrees of stabilization on the early age mechanical behavior of cement bound granular mixtures intended to be used as a base layer within pavement structure. Waste plastic fibers (WPF) recycled from soft drink bottles were used at 1% by the mass of aggregate to reinforce cemented mixtures. To stabilize different mixtures, cement content of 3%, 5%, and 7% by the mass of aggregate and by the weight of aggregate and fiber were used for conventional and fiber-reinforced cement bound granular mix

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5

Skels, Peteris, Viktors Haritonovs, and Edvards Pavlovskis. "Wood Fly Ash Stabilized Road Base Layers with High Recycled Asphalt Pavement Content." Baltic Journal of Road and Bridge Engineering 16, no. 2 (2021): 1–15. http://dx.doi.org/10.7250/bjrbe.2021-16.520.

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Wood fly ash stabilised road base layers with high recycled asphalt pavements content was studied both at the laboratory and in-situ. The original recipe was chosen based on an actual stabilised pavement base layer design with cement CEM II/B-T 42.5R but optimised using wood fly ash. The existing road base layer from gravel was mixed with dolomite aggregate and recycled asphalt pavement, adding cement and wood fly ash at different proportions. The mixture was compacted at optimal water content according to the Standard Proctor test and further conditioned. Resistance to freezing and thawing of

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Zvonarić, Matija, Ivana Barišić, Mario Galić, and Krunoslav Minažek. "Influence of Laboratory Compaction Method on Compaction and Strength Characteristics of Unbound and Cement-Bound Mixtures." Applied Sciences 11, no. 11 (2021): 4750. http://dx.doi.org/10.3390/app11114750.

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During road construction, granular materials for the unbound base course (UBC) and cement-bound base course (CBC) are mostly compacted by vibratory rollers. A widespread laboratory test for determining the optimal moisture content (OMC) and maximum dry density (MDD) of the mixture for installation in UBC and CBC is the Proctor test. Considering that the Proctor test does not produce any vibrations during compaction, this paper compares the Proctor test and the vibrating hammer test. The examination was conducted on UBC and CBC with varying cement content and aggregate types. All mixtures were

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Buczyński, Przemysław, Marek Iwański, Grzegorz Mazurek, Jakub Krasowski, and Maciej Krasowski. "Effects of Portland Cement and Polymer Powder on the Properties of Cement-Bound Road Base Mixtures." Materials 13, no. 19 (2020): 4253. http://dx.doi.org/10.3390/ma13194253.

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This article presents the test results for the physical and mechanical properties and fracture toughness of polymer-modified hydraulically-bound mixtures (HBM) produced with Portland cement for road base layers. The modifier used was a redispersible polymer powder (RPP) based on a vinyl ethylene acetate (EVA) copolymer obtained by spray drying. A three-level full factorial design with two factors was applied to determine the contents of Portland cement and polymer powder in the cement-bound mixture (CBM). Both Portland cement and polymer powder were added at three levels: 0%, 2%, and 4%. The a

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Illyasch, Sergey, and Tetyana Tereshchenko. "Differentiation of methods for manufacturing the specimens of mixtures based on hydraulic binders." Dorogi i mosti 2021 (March 25, 2021): 129–43. http://dx.doi.org/10.36100/dorogimosti2021.23.129.

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Introduction. To the particular group of road materials that are applied by close technologies belong hydraulically bound mixtures, roller-compacted concrete and cold recycled cement bound mixtures. As it is known, the composition and also the technology of application of road materials both affect the choice of method for their specimens manufacturing. For the Ukrainian road building industry, only one method for such specimens manufacturing was implemented, but in the world-wide practices there exist a developed differentiation of said methods which considers a lot of factors. The paper is a

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Teijón-López-Zuazo, E., Á. Vega-Zamanillo, M. Á. Calzada-Pérez, and L. Juli-Gándara. "Estimation of unconfined compressive strength of cement-stabilized jabre as material upgrade on highway construction." Materiales de Construcción 70, no. 338 (2020): 218. http://dx.doi.org/10.3989/mc.2020.09019.

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Granite rock has powerful alterations at several meters of depth. The clayed sand resulting is commonly known as jabre. This “in situ” mixture of cement-stabilized soil requires a laboratory formula. Even when the test section is correctly verified, the mechanical properties of the homogeneous mixture of jabre exhibit high degrees of dispersion. The laboratory work undertaken included particle-size analysis and screening, definition of liquid and plastic limits, compressive strength, dry density and moisture content over stabilized samples, modified Proctor, California Bearing Ratio (CBR) and

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Bulíková, Lucia, and František Kresta. "Hydraulic Road Binder with High Share of Fly Ash after Denitrification." Solid State Phenomena 292 (June 2019): 96–101. http://dx.doi.org/10.4028/www.scientific.net/ssp.292.96.

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Power plants use new technologies to reduce emissions limits. Denitrification is a process that leads to the reduction of NOx in the flue gas. However, in this process, the ammonia or urea is bound to the fly ash and it may adversely affect the properties of this secondary material and it influences its practical utilisation. In this contribution research of siliceous fly ash after denitrification by SNCR in the field of hydraulic road binders for soil treatment is described. In the last time a number of new hydraulic road binders with fly ash as their component have been prepared and used. Fl

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11

Zhu, Qiao, Yi Chen, and Lin Hua Jiang. "Effect of Mineral Admixtures on Chloride Binding Mechanism in Concrete." Applied Mechanics and Materials 204-208 (October 2012): 3716–19. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.3716.

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The chloride binding mechanisms of different mineral admixtures under the condition of stray current and NaCl solute were researched. The electric potential titration was used to measure the content of total chloride ions and free chloride ions. The results show that using of mineral admixture could effectively inhibit the destructive action of the stray current to the stability of bound chloride ion in cement paste. Among all, the most effective mix proportion on chloride-induced corrosion is the mixture with only slag, then the double mixing of fly ash and slag, the last comes the mixture wi

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Brzeziński, Karol, Grzegorz Adamczewski, and Paweł Tutka. "Wpływ obciążeń cyklicznych na wytrzymałość statyczną piasku związanego cementem – ujęcie jakościowe." Roads and Bridges - Drogi i Mosty 16, no. 1 (2017): 37–46. http://dx.doi.org/10.7409/rabdim.017.003.

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The main purpose of the paper is to evaluate the effect of cyclic loading on the static bending strength Rb of cement-bound sand (CBS). The mixture contained graded standard quartz sand bound with cement added at a proportion of 10% of the weight of sand. The main part of the experimental research were three-point bending tests performed on rectangular specimens. The specimens were subjected to cyclic pre-loading with different numbers of cycles and different bending force values. Strength tests were then conducted on pre-loaded specimens and the results were compared with non-preloaded specim

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13

Tataranni, Piergiorgio, Cesare Sangiorgi, Andrea Simone, Valeria Vignali, Claudio Lantieri, and Giulio Dondi. "A laboratory and field study on 100% Recycled Cement Bound Mixture for base layers." International Journal of Pavement Research and Technology 11, no. 5 (2018): 427–34. http://dx.doi.org/10.1016/j.ijprt.2017.11.005.

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14

Dimter, Sanja, Martina Zagvozda, Tea Tonc, and Miroslav Šimun. "Construction Of Economical Pavement Structures With Wood Ash." IOP Conference Series: Materials Science and Engineering 1202, no. 1 (2021): 012048. http://dx.doi.org/10.1088/1757-899x/1202/1/012048.

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Abstract Stabilized mixes that are used in pavement structures are composed of aggregate bound with hydraulic binders (cement, lime) or bitumen. The most commonly used for the construction of base layers are mixes stabilized with cement. A long-standing construction practice for pavement structures was based on the use of quality granular materials for the construction of base layers. However, when designing the pavement structure and selecting materials, economy, sustainability, and environmental impact, in addition to their mechanical properties, should also be considered. Clear requirements

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15

Prathumsuwan, Thitarat, Alfred A. Christy, and Rein Terje Thorstensen. "Hydration Chemistry of Cement Studied by Near Infrared Spectroscopy." Key Engineering Materials 765 (March 2018): 309–13. http://dx.doi.org/10.4028/www.scientific.net/kem.765.309.

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Cement is a complex mixture of inorganic compounds which mainly composed of calcium silicates and calcium aluminates. Cement is mixed with water to form concrete. During the mixing calcium silicate hydrate (CSH) and calcium hydroxide are formed. The ratio of water/cement (w/c ratio) is important to obtain a mixture that gives optimum strength to the concrete. In this work, three different cement samples were mixed with water in four different ratios, including 0.35, 0.40, 0.45 and 0.55, respectively. The hydration process of cement was investigated by using near infrared (NIR) spectroscopy ove

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Zvonarić, Matija, Ivana Barišić, Tihomir Dokšanović, and Martina Zagvozda. "Preliminary Research On Waste Rubber Application In Cement Bound Base Layer." IOP Conference Series: Materials Science and Engineering 1202, no. 1 (2021): 012047. http://dx.doi.org/10.1088/1757-899x/1202/1/012047.

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Abstract Besides all the positive characteristics of cement bound courses (CBC), it has some detrimental effects on the pavement wearing courses. Due to cement hydration, this mixture is affected by shrinkage. Shrinkage induces cracks in the whole layer which along with weather conditions propagate through asphalt layers in a short period. Also, it’s stiffness negatively affects cracks propagation without providing elastic support for upper layers. As a result, roads are covered with various damages which reduces driving comfort and safety and demand new financial investments. The focus is on

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17

Tsynka, Anatolii, Sergey Illyasch та Tetyana Tereshchenko. "СRUSHED STONE MATERIALS AND GRAVEL MATERIALS BOUND BY MINERAL BINDERS. STANDARDIZATION". Dorogi i mosti 2021, № 24 (2021): 28–39. http://dx.doi.org/10.36100/dorogimosti2021.24.028.

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Introduction. This paper presents the results of the standardization of requirements for granular mixtures bound by mineral binders for bases, sub-bases and top layers of road pavements used as framework for national standard «Crushed stone materials and gravel materials for the road building industry — Specifications. Part 3: The materials bound by mineral binders». Standardization. The standard covers the requirements for crushed stone-sand and sand-gravel mixtures treated with mineral binders and derived from them hardened materials as well as the requirements for source constituents. Miner

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18

Berber, Hakan, Kadriann Tamm, Mari-Liis Leinus, et al. "Accelerated carbonation technology granulation of industrial waste: Effects of mixture composition on product properties." Waste Management & Research 38, no. 2 (2019): 142–55. http://dx.doi.org/10.1177/0734242x19886646.

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The use of accelerated carbonation technology in combination with a granulation process was employed to produce aggregates from a variety of industrial wastes, which included municipal solid waste incineration fly ash and air pollution control residue, oil shale ash, cement kiln dust, and quarry fines that have been produced in Estonia. Focusing mainly on the effects produced by the content of municipal solid waste incineration ash in the admixtures, the granule compositions were varied in order to tailor granule properties on the basis of CO2 uptake, strength development, leaching behaviour,

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Shiva Prasad N , B V Kiran Kumar. "A comparative study on rutting behavior of unbound and cement stabilized base layers in flexible pavements." Tuijin Jishu/Journal of Propulsion Technology 44, no. 5 (2023): 234–45. http://dx.doi.org/10.52783/tjjpt.v44.i5.2454.

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Rutting distress, a phenomenon characterized by formation of ruts in high-stress areas of flexible pavements, necessitates material enhancements due to increased vehicular loads resulting from national and international trade via highways, highlighting the need for revised prediction methods utilizing laboratory tests with standardized protocols to evaluate asphalt mixtures before field application. While pavement construction consumes substantial non-renewable resources, there's an increasing emphasis on sustainability over initial costs in government decision-making, underscoring the importa

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20

Guan, Qingfeng, Jingliang Xia, Jing Wang, Faguang Leng, Yongxiang Zhou, and Changwei Cao. "Recycling Blast Furnace Ferronickel Slag as a Replacement for Paste in Mortar: Formation of Carboaluminate, Reduction of White Portland Cement, and Increase in Strength." Materials 14, no. 10 (2021): 2687. http://dx.doi.org/10.3390/ma14102687.

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Blast furnace ferronickel slag (BFFS) is generated in the production of ferronickel alloys and is used as cement replacement in concrete or mortar. The effectivity in reducing cement consumption and improving performance are limited. By referring to the paste replacement method, this work used BFFS to replace an equal volume of the white Portland cement paste to obtain greater performance enhancement. BFFS was used with five levels of replacement (0%, 5%, 10%, 15%, 20%) and four water-to-cement ratios (0.40, 0.45, 0.50, 0.55) were designed. Fluidity, mechanical strength, hydration products, an

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Kopecskó, Katalin, and Lilla Mlinárik. "The influence of different types of SCMs on microstructure and macroscopic properties of cementitious materials." Journal of Physics: Conference Series 2315, no. 1 (2022): 012019. http://dx.doi.org/10.1088/1742-6596/2315/1/012019.

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Abstract In our study, the influence of different supplementary cementitious materials (SCMs) such as metakaolins, silica fume (microsilica) or filtered coal fly ash on the performance of concrete is discussed. The effects of different types and dosages of the SCMs have been investigated. Centrilit NC (MK1) and Metaver N (mk2) type metakaolins, Microsit® 20 (MS) type filtered coal fly ash or Centrilit Fume SX (SF) silica fume suspension was chosen as the replacement for the CEM I 42.5 N-SR0 sulphate resistant Portland cement. In addition to the two-component mixtures, we also examined the beha

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Raj, Shubham, Sher Mohammad, Rima Das, and Shreya Saha. "Coconut fibre-reinforced cement-stabilized rammed earth blocks." World Journal of Engineering 14, no. 3 (2017): 208–16. http://dx.doi.org/10.1108/wje-10-2016-0101.

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Purpose This study aims to investigate the optimum proportion of coconut fibre and cement suitable for rammed earth wall construction. Coconut fibres and cement can be easily incorporated into the soil mixture which adds strength and durability to the wall. This paper highlights the salient observations from a systematic investigation on the effect of coconut fibre on the performance of stabilized rammed earth blocks. Design/methodology/approach Stabilization of soil was done by adding Ordinary Portland Cement (2.5, 5.0, 7.5 and 10.0 per cent by weight of soil), whereas coconut fibre in length

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Wolf, Benjamin, Johannes Paule, and Andrea Kustermann. "Investigation of the influence of fine recycled sand on the setting behaviour of cement when used as supplementary cementitious material (SCM)." MATEC Web of Conferences 364 (2022): 05009. http://dx.doi.org/10.1051/matecconf/202236405009.

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The building materials industry makes a major contribution to greenhouse gases emitted each year, particularly by the cement clinker production. Therefore, the aim should be to maintain an increased part of building material from demolition sites in the material cycle. The use of the fine material (< 2mm) from demolition waste in concrete has so far proved to be problematic due to the increased water demand and loss of compressive strength. One approach is the use of recycled concrete powder (RCP) as supplementary cementitious material (SCM). Demolition material used in this study has been

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Dipesh, Majumdar 1. Utsav Bhattacharyya 2. Agnimitra Sengupta 3. "VALIDATION OF NON-DIMENSIONAL STRENGTH-CEMENTITIOUS MATERIAL-WATER RELATIONSHIP WITH FLY ASH CEMENT CONCRETE." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 9 (2017): 606–10. https://doi.org/10.5281/zenodo.996028.

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Admixture modified concrete shows deviation both in physical and chemical properties, compared to that of an ordinary cement concrete. The properties of these supplementary additives influence the characteristics of concrete to a great extent. Many researchers have proposed strength relationships incorporating the properties of the mineral admixtures and their influence on hydration mechanism for effective proportioning of such mixes. The present study aims to exhibit the suitability of a non-dimensional strength-cementitious material-water relationship as proposed by Chowdhury and Basu for fl

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Cui, Ying, and Zhongsheng Tan. "Experimental Study of High Performance Synchronous Grouting Materials Prepared with Clay." Materials 14, no. 6 (2021): 1362. http://dx.doi.org/10.3390/ma14061362.

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Shield construction discharges a large amount of soil and muck. The utilization of discharged soil of shield always has high energy consumption and a low utilization rate. Meanwhile, synchronous grouting is a key process for shield tunneling. The current studies show that the synchronous grouting materials applied now generally have the problem of mismatching among filling property, fluidity, and consolidation strength. In order to study the feasibility of using the excavated soil produced by shield construction in clay stratum as synchronous grouting material, high performance synchronous gro

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Guvalov (Kapanakchi), A. А., S. İ. Abbasova, and N. Z. Ahmadli. "NANOMODIFIED SELF-COMPACTING CONCRETE BASED ON RECYCLED AGGREGATES." Chemical Problems 23, no. 1 (2025): 125–30. http://dx.doi.org/10.32737/2221-8688-2025-1-125-130.

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The effectiveness study results related to "soft" multi-stage crushing mode of concrete scrap are presented. During the research it was found that the processing of concrete scrap using this technology can significantly improve the characteristics of the secondary concrete aggregate, namely crushability, water absorption and voids. It is achieved by reducing the content of cement bound stones in the secondary crushed stone. Significant volumes of the dispersed material formed as a result of such processing can be used as a fine filler part at production technology of the self-compacting concre

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Khayrutdinova, D. R., V. V. Smirnov, O. S. Antonova, et al. "The influence of sodium and potassium doping effect on phase formation in calcium sulphate synthesis." Доклады Академии наук 489, no. 1 (2019): 49–52. http://dx.doi.org/10.31857/s0869-5652489149-52.

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Calcium sulphate-based materials were synthesized and investigated, in which Ca2+ cations were substituted for Na+ or K+ cations in an amount of 5, 10 and 20 mol.%. With the introduction of Na+, materials with the structure semi-aqueous and two-water calcium sulfate were obtained, with the introduction of potassium, a mixture of calcium sulfates with different content of chemically bound water and sulfates were obtained, in which potassium cations are forming compounds with different Ca/K ratio. Doping of calcium sulphate with potassium and sodium cations led to an increase in the solubility o

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Lin, Run-Sheng, Xiao-Yong Wang, Han-Seung Lee, and Hyeong-Kyu Cho. "Hydration and Microstructure of Cement Pastes with Calcined Hwangtoh Clay." Materials 12, no. 3 (2019): 458. http://dx.doi.org/10.3390/ma12030458.

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Calcined Hwangtoh (HT) clay is a very promising supplementary cementitious material (SCM). In this work, the development of the mechanical properties and microstructures of HT-blended cement paste was studied after substituting the binder with HT powder calcined at 800 °C. The water-to-binder (w/b) ratios of the paste used were 0.2 and 0.5, and the quantities of HT powder added to the mixture were 0, 10, and 20%. The compressive strength test indicates that the addition of the HT powder increases the compressive strength of the paste after seven days of curing, and the highest compressive stre

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Gáspár, László, and Zsolt Bencze. "COAL FLY ASH IN ROAD CONSTRUCTION AND MAINTENANCE." Dorogi i mosti 2024, no. 29 (2024): 58–67. http://dx.doi.org/10.36100/dorogimosti2024.29.058.

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Introduction. There is a general worldwide aspiration to increase the sustainability in every national economy branch, including road engineering. The growing use of various industrial by-products as economical and eco-friendly road construction and maintenance techniques can be observed in many countries. Coal fly ash is a worldwide available industrial by-product that can be advantageously used in road sector. Problem Statement. The utilization of various types of fly ash in road sector can be not only en-vironmentally friendly, but also cost effective; however, eventually several special te

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Li, Shuai, Yulin Zhang, Ru Feng, Haoxuan Yu, Jilong Pan, and Jiwei Bian. "Environmental Safety Analysis of Red Mud-Based Cemented Backfill on Groundwater." International Journal of Environmental Research and Public Health 18, no. 15 (2021): 8094. http://dx.doi.org/10.3390/ijerph18158094.

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As one of the main industrial solid wastes, there are a large number of free alkaloids, chemically bound alkaloids, fluoride, and heavy metal ions in Bayer process red mud (BRM), which are difficult to remove and easily pollute groundwater as a result of open storage. In order to realize the large-scale industrial application of BRM as a backfilling aggregate for underground mining and simultaneously avoid polluting groundwater, the material characteristics of BRM were analyzed through physical, mechanical, and chemical composition tests. The optimum cement–sand ratio and solid mass concentrat

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Drljaca, Dijana, Ljiljana Vukic, Dajana Dragic, et al. "Leaching of heavy metals from wood biomass ash, before and after binding in cement composite." Journal of the Serbian Chemical Society, no. 00 (2022): 54. http://dx.doi.org/10.2298/jsc220217054d.

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Wood ash is a complex mixture of inorganic and organic compounds. It is heterogeneous in composition, which can vary considerably. Ash is mainly disposed of in landfills, which poses a risk for air, soil and groundwater contamination by trace elements. In order for wood biomass ash to be used as a secondary raw material, it is necessary to perform leaching tests, to determine which microelements it contains, and which of them could be released into the environment during the ash disposal. Sequential extraction showed that in the exchangeable and carbonate fraction, the most volatile metals As,

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Diamanti, Maria Vittoria, Cristina Tedeschi, Mariagiovanna Taccia, et al. "Suspended Multifunctional Nanocellulose as Additive for Mortars." Nanomaterials 12, no. 7 (2022): 1093. http://dx.doi.org/10.3390/nano12071093.

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Cellulose derivatives have found significant applications in composite materials, mainly because of the increased mechanical performance they ensure. When added to cement-based materials, either in the form of nanocrystals, nanofibrils or micro/nanofibers, cellulose acts on the mixture with fresh and hardened properties, affecting rheology, shrinkage, hydration, and the resulting mechanical properties, microstructure, and durability. Commercial cotton wool was selected as starting material to produce multifunctional nanocelluloses to test as additives for mortars. Cotton wool was oxidized to o

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DEREVIANKO, V. M., H. M. HRYSHKO та O. V. VATAZHISHIN. "MODIFIED COMPOSITE CEMENTS IN THE SYSTEM СаО–Al2O3–SO3–H2O". Ukrainian Journal of Civil Engineering and Architecture, № 3 (015) (25 червня 2023): 59–65. http://dx.doi.org/10.30838/j.bpsacea.2312.140723.59.955.

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Problem statement. One of the most important issues today is the reconstruction, reinforcement of buildings and structures, as well as the creation of new construction materials with the required physical and mechanical properties. The solution to this problem is possible through controlling and regulating the properties of the initial components of the concrete mixture, increasing the amount of surface components at the interface. To control the properties of construction materials, and thus to obtain the cement stone with the specified physical and mechanical properties is possible by means

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Sentosa, Gregorius Sandjaja, Aniek Prihatiningsih, Ricky Putra, and William Pratama Bachtiar. "PERBAIKAN DESAIN DINDING PENAHAN TANAH URUG PADA SPBU DI JALAN SILIWANGI BANTEN." Jurnal Serina Abdimas 1, no. 2 (2023): 592–98. http://dx.doi.org/10.24912/jsa.v1i2.25792.

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A site of land used as gas station has been filled to the ground level with the level of the road that passes near the station site. To hold the landfill, a 4000mm high retaining wall was built, but the construction of this wall was made without adequate planning resulting in damage in the form of collapse in several parts of the wall. The andesite stone material used is a textured stone that tends to be round with a smooth surface and is bound with a cement mortar that is too thick so that the bond is not strong enough. The damage of the wall has been identified and could lead to the collapse

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Cheng, An, Wei-Ting Lin, Lukáš Fiala, Petr Hotěk, Sao-Jeng Chao, and Hui-Mi Hsu. "Electrical resistance and self-sensing properties of pressure-sensitive materials with graphite filler in Kuralon fiber concrete." Materials Science-Poland 40, no. 2 (2022): 223–39. http://dx.doi.org/10.2478/msp-2022-0023.

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Abstract This study aimed to investigate conductivity behavior of concrete containing graphite and its sensitivity to the effects of pressure. Graphite powder was added to concrete to replace partial cement (4 wt.%, 8 wt.%, 12 wt.%, and 16 wt.%) as conductive fillers with a water-to-cementitious ratio of 0.45. Specimens with 0.5 vol.% Kuralon fibers were treated to enhance the performance of self-sensing properties to investigate the influence of graphite and fiber contents on electrical resistivities. The relationship between the axial load and changes in resistivity was determined using cycl

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Sakhare, Akshay, Hafsa Farooq, Sanjay Nimbalkar, and Goudappa R. Dodagoudar. "Dynamic Behavior of the Transition Zone of an Integral Abutment Bridge." Sustainability 14, no. 7 (2022): 4118. http://dx.doi.org/10.3390/su14074118.

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Weaker sections of a railway track, such as the approach sections, are prone to differential settlement under the action of repeated train loads. The railway tracks degrade more quickly at a critical section adjacent to a traditional rail bridge because of progressive deterioration. Opting for an integral abutment instead of a traditional bridge is gaining importance due to its improved performance in terms of track stiffness and reduced settlement. It is essential to understand such issues with the appropriate methodologies. This study investigates the behavior of an integral abutment bridge

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Asrullah, Asrullah, Diawarman Diawarman, Rita Anggrainy, and Kamal Afif. "ANALISA KUAT TEKAN BETON Fc’25 MPa DENGAN PENAMBAHAN ABU BATU DAN SEMEN MORTAR UTAMA TYPE 400." Jurnal Teknik Sipil 11, no. 2 (2022): 60–66. http://dx.doi.org/10.36546/tekniksipil.v11i2.517.

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Secara sederhana, beton dibentuk oleh pengerasan campuran antara semen, air, agregat halus (pasir), dan agregat kasar (batu pecah atau kerikil). Kadang-kadang ditambah bahan lain untuk memperbaiki kualitas beton. Perkembangan sekarang ini, beton merupakan bahan yang paling banyak dipakai pada pembangunan dalam bidang teknik sipil, baik pada bangunan gedung, jembatan, bendung, maupun konstruksi lain. Sifat dari bahan beton, yaitu sangat kuat untuk menahan tekan, tetapi tidak kuat (lemah) untuk menahan tarik. Metode yang digunakan dala desain campuran beton menggunakan SNI 03-2834-2000. Peneliti

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Krawczyk, Bartłomiej, Antoni Szydło, Piotr Mackiewicz, and Dariusz Dobrucki. "Kryteria oceny podbudów związanych cementem zawierających kruszywa pochodzące z recyklingu." Roads and Bridges - Drogi i Mosty 18, no. 2 (2019): 109–26. http://dx.doi.org/10.7409/rabdim.019.007.

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The paper deals with investigations into the possibility of using crushed concrete reclaimed from road pavements to produce new cement bound mixtures for roadbase courses. From the economic and technical points of view crushed concrete waste constitutes an alternative source of aggregates which can replace natural aggregates in cement bound mixtures. First, recycled concrete aggregate was tested with regard to the current requirements which aggregates for cement bound roadbases must meet. Then, the strength and frost resistance tests were carried out on cement bound mixtures based on recycled

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Santana, Teresa, João Gonçalves, Fernando Pinho, and Rui Micaelo. "Effects of the Ratio of Porosity to Volumetric Cement Content on the Unconfined Compressive Strength of Cement Bound Fine Grained Soils." Infrastructures 6, no. 7 (2021): 96. http://dx.doi.org/10.3390/infrastructures6070096.

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This paper presents an experimental investigation into the effects of porosity, dry density and cement content on the unconfined compressive strength and modulus of elasticity of cement-bound soil mixtures. A clayey sand was used with two different proportions of type IV Portland cement, 10% and 14% of the dry mass of the soil. Specimens were moulded with the same water content but using four different compaction efforts, corresponding to four different dry densities. Unconfined compression testing was conducted at seven days of curing time on unsoaked samples. The results showed that the comp

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Atmadi, Tony Prasanto. "STUDI UJI KUAT TEKAN DAN SERAPAN AIR PADA BATA BETON BERLUBANG DENGAN BAHAN IKAT KAPUR DAN FLY ASH." Sains & Teknologi 3, no. 3 (2019): 12. http://dx.doi.org/10.24123/jst.v3i3.2286.

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Along with population growth from year to year increase in positive correlation with housing needs. Various innovative building materials necessary to provide the public an opportunity to select materials according to their needs and abilities. One of the innovations that can be developed is the use of hollow concrete bricks as building material for walls using a different belt materials. In Indonesia, many local materials that can be used as building material for the mixed stacking hollow concrete blocks strapped him in particular materials. One of the alternative tie material can be used to

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Węgliński, Szymon, and Gabriel Martysz. "Utilization of Municipal Solid Waste Incineration Bottom Ash in Cement-Bound Mixtures." Sustainability 16, no. 5 (2024): 1865. http://dx.doi.org/10.3390/su16051865.

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In order to protect the natural resources, it is beneficial for the environment when materials that are not valuable, such as waste or recycled materials, are used in engineering. This article presents laboratory studies on the use of mixtures of incineration bottom ash (IBA) from municipal waste incinerators with natural, fine grain and uniform aggregate in cement-bound layers. The mechanical and engineering properties of aggregates were studied, their usefulness was assessed and possible applications are indicated. The chemical composition of the material was found to be consistent with typi

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Pasetto, Marco, and Nicola Baldo. "RE-USE OF INDUSTRIAL WASTES IN CEMENT BOUND MIXTURES FOR ROAD CONSTRUCTION." Environmental Engineering and Management Journal 17, no. 2 (2018): 417–26. http://dx.doi.org/10.30638/eemj.2018.042.

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Topoliński, Szymon, Aleksandra Gorączko, Ahmet Beycioğlu, and Baki Bagriaçık. "Application of Waste Rock Dust in Cement Binding Mixtures Used in Roadway." IOP Conference Series: Materials Science and Engineering 1203, no. 3 (2021): 032031. http://dx.doi.org/10.1088/1757-899x/1203/3/032031.

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Abstract The article contains the results of research on the effect of waste rock dust on the properties of cement-bound mixtures. Gabbro-limestone dust with a significant proportion of active silica and calcium carbonate was used for the tests. The results of strength tests after 28 days of maturation with a variable proportion of cement (3%, 5%, 7%) and rock dust (0%, 10%, 20%) are presented. The stabilized aggregate was fine sand. The obtained results did not show the expected strength and frost resistance of the tested samples. The analysis of the results shows that the addition of rock du

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Safdar, Muhammad, Tim Newson, Colin Schmidt, Kenichi Sato, Takuro Fujikawa, and Faheem Shah. "Effect of Fiber and Cement Additives on the Small-Strain Stiffness Behavior of Toyoura Sand." Sustainability 12, no. 24 (2020): 10468. http://dx.doi.org/10.3390/su122410468.

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The disposal of 2011 Japan earthquake waste has become an important issue in Japan and it is not realistic or economical to send all of these wastes to landfill sites, due to limited space, high costs, and related environmental issues. In sustainable geotechnical applications, mixing of the separated soils from disaster wastes with additives (e.g., cement and fiber) is required to improve their strength and stiffness characteristics. In this study, monotonic triaxial drained compression tests are performed on medium dense specimens of Toyoura sand-cement-fiber mixtures with different percentag

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Ho, Lanh Si, Kenichiro Nakarai, Kenta Eguchi, Takashi Sasaki, and Minoru Morioka. "Strength development of cement-treated sand using different cement types cured at different temperatures." MATEC Web of Conferences 195 (2018): 01006. http://dx.doi.org/10.1051/matecconf/201819501006.

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This study aimed to investigate the strength development of cement-treated sand using different cement types: ordinary Portland cement (OPC), high early strength Portland cement (HPC), and moderate heat Portland cement (MPC) cured at different temperatures. The cementtreated sand specimens were prepared with 8% of cement content and cured under sealed conditions at 20οC and 40οC, and mortar specimens were also prepared for reference. The results showed that the compressive strength of cement-treated sand increased in order of MPC, OPC, and HPC under high curing temperatures. It was interesting

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Stulajterova, Radoslava, Lubomir Medvecky, Maria Giretova, et al. "Characterization of Tetracalcium Phosphate/Monetite Biocement Modified by Magnesium Pyrophosphate." Materials 15, no. 7 (2022): 2586. http://dx.doi.org/10.3390/ma15072586.

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Magnesium pyrophosphate modified tetracalcium phosphate/monetite cement mixtures (MgTTCPM) were prepared by simple mechanical homogenization of compounds in a ball mill. The MgP2O7 was chosen due to the suitable setting properties of the final cements, in contrast to cements with the addition of amorphous (Ca, Mg) CO3 or newberite, which significantly extended the setting time even in small amounts (corresponding ~to 1 wt% of Mg in final cements). The results showed the gradual dissolution of the same amount of Mg2P2O7 phase, regardless of its content in the cement mixtures, and the refinement

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Crucho, João, Luís Picado-Santos, and José Neves. "Mechanical Performance of Cement Bound Granular Mixtures Using Recycled Aggregate and Coconut Fiber." Applied Sciences 12, no. 4 (2022): 1936. http://dx.doi.org/10.3390/app12041936.

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Construction and demolition waste (CDW) and coconut husk are frequently discharged into landfills, creating an environmental problem. However, the CDW can be used to obtain good-quality recycled aggregates (RA), and the coconut husk can be processed into coconut fiber (CF). These materials can be used in the construction of cement bound granular mixtures (CBGM) to be applied as base and sub-base layers of road pavements. Such a large-scale application would bring value to these materials and reduce the extraction of non-renewable natural resources. In this work, the mechanical performance of C

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Crucho, João, Luís Picado-Santos, and José Neves. "Flexural strength of cement bound granular mixtures using recycled aggregate and coconut fiber." Transportation Research Procedia 72 (2023): 232–39. http://dx.doi.org/10.1016/j.trpro.2023.11.399.

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Alekseeva, Anna V., and Olga N. Savostikova. "Problems of the safe use of modern cement materials in the practice of drinking water supply." Hygiene and sanitation 101, no. 12 (2023): 1458–63. http://dx.doi.org/10.47470/0016-9900-2022-101-12-1458-1463.

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Introduction. Recently, there have been increasing changes in the technology of preparation of cement mixtures and concrete, the use of new components in their composition, since traditional materials are not quite suitable for the construction of hydraulic structures, including the internal coating of pipes and drinking water tanks. However, in addition to improving the characteristics of cement mixtures, additives can have a negative impact on the environment and human health by leaching out of cement into drinking water. The definition of only the main components specified in the “Universal

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Farhan, Ahmed Hilal, Andrew Robert Dawson, and Nicholas Howard Thom. "Characterization of rubberized cement bound aggregate mixtures using indirect tensile testing and fractal analysis." Construction and Building Materials 105 (February 2016): 94–102. http://dx.doi.org/10.1016/j.conbuildmat.2015.12.018.

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