Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash

Flourishing cement industry to meet the demand of construction industry has negative impact to the global environment owing to the carbon emission during calcination of cement. At the same time, the disposal of coal bottom ash and cockle shell from coal power plant and cockle trade which pollutes th...

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Main Authors: Nabilla, Mohamad, Rahimah, Embong, Nor Hazurina, Othman, Khairunisa, Muthusamy, Mohd Faizal, Md Jaafar
Format: Article
Language:English
Published: TULPAR Academic Publishing 2025
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/44407/
http://umpir.ump.edu.my/id/eprint/44407/1/Flowability%20and%20compressive%20strength%20of%20ternary%20blended%20cement.pdf
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author Nabilla, Mohamad
Rahimah, Embong
Nor Hazurina, Othman
Khairunisa, Muthusamy
Mohd Faizal, Md Jaafar
author_facet Nabilla, Mohamad
Rahimah, Embong
Nor Hazurina, Othman
Khairunisa, Muthusamy
Mohd Faizal, Md Jaafar
author_sort Nabilla, Mohamad
building UMP Institutional Repository
collection Online Access
description Flourishing cement industry to meet the demand of construction industry has negative impact to the global environment owing to the carbon emission during calcination of cement. At the same time, the disposal of coal bottom ash and cockle shell from coal power plant and cockle trade which pollutes the environment also need to be resolved. In view of circular economy, the present research aims to produce ternary blended cement consisting of coal bottom ash (CBA) and cockle shell ash (CSA) for sustainable mortar production. The research was conducted to determine the effect of CBA as partial cement replacement on flowability and compressive strength of CSA blended cement mortar. Seven mortar mixes consisting of CBA as supplementary cementitious material ranging from 0% to 60% by weight of cement were prepared. All specimens were water cured up to 56 days. The flowability test was conducted to assess the properties of the fresh state, while hardened properties were evaluated through compressive strength test at 1, 3, 7, 28, and 56 days. The results showed flowability decreased by 5% to 31% with increasing CBA content compared to the control mix. The use finer sized CBA forms a slightly stickier mortar mix with lower flowability. A combination 10% to 20% CBA is the best percentage to use for formation of CSA mortar with enhanced strength. However, a maximum strength of 23 MPa was achieved at 56 days with an optimal CBA replacement of 10%. This research demonstrates the potential by transforming industrial waste for low-carbon cement production to save the use of landfills for waste disposal and optimize consumption of non-renewable resources
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spelling ump-444072025-04-29T06:37:55Z http://umpir.ump.edu.my/id/eprint/44407/ Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash Nabilla, Mohamad Rahimah, Embong Nor Hazurina, Othman Khairunisa, Muthusamy Mohd Faizal, Md Jaafar TA Engineering (General). Civil engineering (General) TD Environmental technology. Sanitary engineering Flourishing cement industry to meet the demand of construction industry has negative impact to the global environment owing to the carbon emission during calcination of cement. At the same time, the disposal of coal bottom ash and cockle shell from coal power plant and cockle trade which pollutes the environment also need to be resolved. In view of circular economy, the present research aims to produce ternary blended cement consisting of coal bottom ash (CBA) and cockle shell ash (CSA) for sustainable mortar production. The research was conducted to determine the effect of CBA as partial cement replacement on flowability and compressive strength of CSA blended cement mortar. Seven mortar mixes consisting of CBA as supplementary cementitious material ranging from 0% to 60% by weight of cement were prepared. All specimens were water cured up to 56 days. The flowability test was conducted to assess the properties of the fresh state, while hardened properties were evaluated through compressive strength test at 1, 3, 7, 28, and 56 days. The results showed flowability decreased by 5% to 31% with increasing CBA content compared to the control mix. The use finer sized CBA forms a slightly stickier mortar mix with lower flowability. A combination 10% to 20% CBA is the best percentage to use for formation of CSA mortar with enhanced strength. However, a maximum strength of 23 MPa was achieved at 56 days with an optimal CBA replacement of 10%. This research demonstrates the potential by transforming industrial waste for low-carbon cement production to save the use of landfills for waste disposal and optimize consumption of non-renewable resources TULPAR Academic Publishing 2025 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/44407/1/Flowability%20and%20compressive%20strength%20of%20ternary%20blended%20cement.pdf Nabilla, Mohamad and Rahimah, Embong and Nor Hazurina, Othman and Khairunisa, Muthusamy and Mohd Faizal, Md Jaafar (2025) Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash. Challenge Journal of Concrete Research Letters, 16 (1). pp. 25-32. ISSN 2548-0928. (Published) https://doi.org/10.20528/cjcrl.2025.01.003 https://doi.org/10.20528/cjcrl.2025.01.003
spellingShingle TA Engineering (General). Civil engineering (General)
TD Environmental technology. Sanitary engineering
Nabilla, Mohamad
Rahimah, Embong
Nor Hazurina, Othman
Khairunisa, Muthusamy
Mohd Faizal, Md Jaafar
Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash
title Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash
title_full Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash
title_fullStr Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash
title_full_unstemmed Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash
title_short Flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash
title_sort flowability and compressive strength of ternary blended cement mortar of coal bottom ash and ground cockle shell ash
topic TA Engineering (General). Civil engineering (General)
TD Environmental technology. Sanitary engineering
url http://umpir.ump.edu.my/id/eprint/44407/
http://umpir.ump.edu.my/id/eprint/44407/
http://umpir.ump.edu.my/id/eprint/44407/
http://umpir.ump.edu.my/id/eprint/44407/1/Flowability%20and%20compressive%20strength%20of%20ternary%20blended%20cement.pdf