Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential

In numerous nations, the utilization of coal as an energy source for thermal power plants and manufacturing operations has increased in recent decades, which has led to an increase in coal consumption. The growth of the world's population is reflected in the increasing use of cement in the cons...

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Main Authors: Al Biajawi, Mohammad I., Rahimah, Embong
Format: Article
Language:English
Published: Semarak Ilmu Publishing 2024
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/44173/
http://umpir.ump.edu.my/id/eprint/44173/1/Coal%20bottom%20ash%20as%20an%20eco-friendly%20cement%20substitute.pdf
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author Al Biajawi, Mohammad I.
Rahimah, Embong
author_facet Al Biajawi, Mohammad I.
Rahimah, Embong
author_sort Al Biajawi, Mohammad I.
building UMP Institutional Repository
collection Online Access
description In numerous nations, the utilization of coal as an energy source for thermal power plants and manufacturing operations has increased in recent decades, which has led to an increase in coal consumption. The growth of the world's population is reflected in the increasing use of cement in the construction industry and in the rising production of concrete worldwide. These two occurrences contribute significantly to the increase in carbon dioxide (CO2) emissions and coal ash discharges, both of which are harmful to the surroundings. Coal-fired power plants produce industrial byproducts such as coal-bottom ash (CBA) that could be incorporated into self-compacting concrete (SCC) to provide sustainable building materials and encourage the use of byproducts. Consequently, the objective of this experimental study is to investigate the effects of CBA as a cement substitute in SCC on the fresh and mechanical properties. Six various mixtures were prepared by replacing the cement used in the production with different amounts of CBA (0%, 10%, 20%, 30%, 40%, and 50%, respectively). The various properties of all mixtures, including fresh and mechanical properties of concrete, were analysed in accordance with EFNARC and ASTM standards. For the fresh concrete properties of the SCC, a slump flow test, an L-box test, and a V-funnel test were performed. For the mechanical properties, compressive strength, tensile strength, and water absorption tests were performed. The result showed that CBA can be use as cement replacement up to 20% exhibited to improve the strength of SCC Mixture.
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spelling ump-441732025-06-20T07:21:44Z http://umpir.ump.edu.my/id/eprint/44173/ Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential Al Biajawi, Mohammad I. Rahimah, Embong TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery In numerous nations, the utilization of coal as an energy source for thermal power plants and manufacturing operations has increased in recent decades, which has led to an increase in coal consumption. The growth of the world's population is reflected in the increasing use of cement in the construction industry and in the rising production of concrete worldwide. These two occurrences contribute significantly to the increase in carbon dioxide (CO2) emissions and coal ash discharges, both of which are harmful to the surroundings. Coal-fired power plants produce industrial byproducts such as coal-bottom ash (CBA) that could be incorporated into self-compacting concrete (SCC) to provide sustainable building materials and encourage the use of byproducts. Consequently, the objective of this experimental study is to investigate the effects of CBA as a cement substitute in SCC on the fresh and mechanical properties. Six various mixtures were prepared by replacing the cement used in the production with different amounts of CBA (0%, 10%, 20%, 30%, 40%, and 50%, respectively). The various properties of all mixtures, including fresh and mechanical properties of concrete, were analysed in accordance with EFNARC and ASTM standards. For the fresh concrete properties of the SCC, a slump flow test, an L-box test, and a V-funnel test were performed. For the mechanical properties, compressive strength, tensile strength, and water absorption tests were performed. The result showed that CBA can be use as cement replacement up to 20% exhibited to improve the strength of SCC Mixture. Semarak Ilmu Publishing 2024-06 Article PeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/44173/1/Coal%20bottom%20ash%20as%20an%20eco-friendly%20cement%20substitute.pdf Al Biajawi, Mohammad I. and Rahimah, Embong (2024) Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential. Journal of Advanced Research in Applied Mechanics, 119 (1). pp. 66-82. ISSN 2289-7895. (Published) https://doi.org/10.37934/aram.119.1.6682 https://doi.org/10.37934/aram.119.1.6682
spellingShingle TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Al Biajawi, Mohammad I.
Rahimah, Embong
Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential
title Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential
title_full Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential
title_fullStr Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential
title_full_unstemmed Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential
title_short Coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: Properties and potential
title_sort coal bottom ash as an eco-friendly cement substitute in self-compacting concrete: properties and potential
topic TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/44173/
http://umpir.ump.edu.my/id/eprint/44173/
http://umpir.ump.edu.my/id/eprint/44173/
http://umpir.ump.edu.my/id/eprint/44173/1/Coal%20bottom%20ash%20as%20an%20eco-friendly%20cement%20substitute.pdf