Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete

The continued growth of the world construction sectors has resulted in high demand for concrete materials. The innovation of using filler as a replacement for cement is becoming a trend in order to reduce the cement consumption and provide benefit in various ways. Hence forth, 10% of cement was r...

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Main Authors:	Ali, Maisarah, Abdullah, Muhd Sufian, Saad , Siti Asmahani
Format:	Article
Language:	English
Published:	Trans Tech Publications, Switzerland 2015
Subjects:	TA401 Materials of engineering and construction
Online Access:	http://irep.iium.edu.my/44072/ http://irep.iium.edu.my/44072/ http://irep.iium.edu.my/44072/ http://irep.iium.edu.my/44072/1/44072_-_Effect_of_calcium_carbonate_replacement_on_workability_and_mechanical_strength_of_Portland_cement_concrete.pdf

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recordtype	eprints
spelling	iium-440722016-05-20T07:39:51Z http://irep.iium.edu.my/44072/ Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete Ali, Maisarah Abdullah, Muhd Sufian Saad , Siti Asmahani TA401 Materials of engineering and construction The continued growth of the world construction sectors has resulted in high demand for concrete materials. The innovation of using filler as a replacement for cement is becoming a trend in order to reduce the cement consumption and provide benefit in various ways. Hence forth, 10% of cement was replaced by the calcium carbonate (CaCO3) in this study. CaCO3 is a natural material, which has a finer particles size as compared to the cement particles. This improves particle packing of concrete and give spacer effect. The concrete with CaCO3 replacement possess a higher slump, which increased the workability. The specimens were prepared in 150mm x 150mm x 150mm mould. At 28 days, the water absorbed by hardened concrete was lower for CaCO3 as microscopy analysis indicates very low porosity in CaCO3 concrete. Mechanical properties tests were conducted in 3, 7 and 28 days. The CaCO3 helps to increase the early strength, due to the accelerator effect and high rate of hydration which hardens the concrete quicker. At matured age, the concrete with the CaCO3 addition exhibits lower strength as compared with concrete without CaCO3, but still within the target strength. Keywords: Calcium carbonate, ordinary Portland cement, particle packing, concrete workability and strength Trans Tech Publications, Switzerland 2015 Article PeerReviewed application/pdf en http://irep.iium.edu.my/44072/1/44072_-_Effect_of_calcium_carbonate_replacement_on_workability_and_mechanical_strength_of_Portland_cement_concrete.pdf Ali, Maisarah and Abdullah, Muhd Sufian and Saad , Siti Asmahani (2015) Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete. Advanced Materials Research, 1115. pp. 137-141. ISSN 1022-6680 http://www.scientific.net/AMR.1115.137 10.4028/www.scientific.net/AMR.1115.137
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TA401 Materials of engineering and construction
spellingShingle	TA401 Materials of engineering and construction Ali, Maisarah Abdullah, Muhd Sufian Saad , Siti Asmahani Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete
description	The continued growth of the world construction sectors has resulted in high demand for concrete materials. The innovation of using filler as a replacement for cement is becoming a trend in order to reduce the cement consumption and provide benefit in various ways. Hence forth, 10% of cement was replaced by the calcium carbonate (CaCO3) in this study. CaCO3 is a natural material, which has a finer particles size as compared to the cement particles. This improves particle packing of concrete and give spacer effect. The concrete with CaCO3 replacement possess a higher slump, which increased the workability. The specimens were prepared in 150mm x 150mm x 150mm mould. At 28 days, the water absorbed by hardened concrete was lower for CaCO3 as microscopy analysis indicates very low porosity in CaCO3 concrete. Mechanical properties tests were conducted in 3, 7 and 28 days. The CaCO3 helps to increase the early strength, due to the accelerator effect and high rate of hydration which hardens the concrete quicker. At matured age, the concrete with the CaCO3 addition exhibits lower strength as compared with concrete without CaCO3, but still within the target strength. Keywords: Calcium carbonate, ordinary Portland cement, particle packing, concrete workability and strength
format	Article
author	Ali, Maisarah Abdullah, Muhd Sufian Saad , Siti Asmahani
author_facet	Ali, Maisarah Abdullah, Muhd Sufian Saad , Siti Asmahani
author_sort	Ali, Maisarah
title	Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete
title_short	Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete
title_full	Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete
title_fullStr	Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete
title_full_unstemmed	Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete
title_sort	effect of calcium carbonate replacement on workability and mechanical strength of portland cement concrete
publisher	Trans Tech Publications, Switzerland
publishDate	2015
url	http://irep.iium.edu.my/44072/ http://irep.iium.edu.my/44072/ http://irep.iium.edu.my/44072/ http://irep.iium.edu.my/44072/1/44072_-_Effect_of_calcium_carbonate_replacement_on_workability_and_mechanical_strength_of_Portland_cement_concrete.pdf
first_indexed	2023-09-18T21:02:42Z
last_indexed	2023-09-18T21:02:42Z
_version_	1777410729101492224

Effect of calcium carbonate replacement on workability and mechanical strength of Portland cement concrete

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