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Bio-concrete on chloride condition: effect on compressive strength and water penetration

In recent years, the beneficial effect of sulphate reduction bacteria (SRB) to induce calcium carbonate precipitation on the concrete structure has gradually increase great attention in the industry. In this study, different SRB concentration (0%, 3%, 5% and 7%) and water cement ratio (0.4w/c, 0.5w/...

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Main Authors:	Teddy, T., J.M., Irwan, Othman, N., Gani, P.
Format:	Article
Language:	English
Published:	Construction Research Institute of Malaysia (CREAM) 2018
Subjects:	TA Engineering (General). Civil engineering (General) TH Building construction TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
Online Access:	http://eprints.uthm.edu.my/4380/1/AJ%202018%20%2872%29.pdf http://eprints.uthm.edu.my/4380/
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id	my.uthm.eprints.4380
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spelling	my.uthm.eprints.43802021-12-02T04:09:42Z http://eprints.uthm.edu.my/4380/ Bio-concrete on chloride condition: effect on compressive strength and water penetration Teddy, T. J.M., Irwan Othman, N. Gani, P. TA Engineering (General). Civil engineering (General) TH Building construction TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction In recent years, the beneficial effect of sulphate reduction bacteria (SRB) to induce calcium carbonate precipitation on the concrete structure has gradually increase great attention in the industry. In this study, different SRB concentration (0%, 3%, 5% and 7%) and water cement ratio (0.4w/c, 0.5w/c and 0.6w/c) was investigated in term of compressive strength and water penetration. Since the sample curing in saline water, thus, the sample on chloride condition also investigated accordingly. Compressive strength and water penetration test were performed at the stage of 28th, 56th, 90th, 180th and 360th day of curing period. Test results indicated that the best SRB concentration to be mixed in bio-concrete was 5% while 0.5w/c for water cement ratio. Both values enhanced significantly the compressive strength and reduced porosity and water penetration of bio-concrete. The maximum increased of compressive strength in 0.5w/c is 58.6MPa was observed with 5% of SRB on the day 180 of curing time. Meanwhile, the lowest water penetration was recorded on the last day (day 360) of curing with 2.93cm at the 5% and 0.6w/c of SRB concentration and water cement ratio, respectively. These improvements were due to deposition on the SRB cells within the pore of the concrete cube as cured in chloride water. Results of this study demonstrated the role of SRB induced calcium carbonate precipitation in improving the concrete structure cured in extreme condition in term of compressive strength and water penetration. Construction Research Institute of Malaysia (CREAM) 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/4380/1/AJ%202018%20%2872%29.pdf Teddy, T. and J.M., Irwan and Othman, N. and Gani, P. (2018) Bio-concrete on chloride condition: effect on compressive strength and water penetration. Malaysian Construction Research Journal (MCRJ), 4 (2). pp. 129-140. ISSN 2590 - 4140
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tun Hussein Onn Malaysia
content_source	UTHM Institutional Repository
url_provider	http://eprints.uthm.edu.my/
language	English
topic	TA Engineering (General). Civil engineering (General) TH Building construction TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
spellingShingle	TA Engineering (General). Civil engineering (General) TH Building construction TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction Teddy, T. J.M., Irwan Othman, N. Gani, P. Bio-concrete on chloride condition: effect on compressive strength and water penetration
description	In recent years, the beneficial effect of sulphate reduction bacteria (SRB) to induce calcium carbonate precipitation on the concrete structure has gradually increase great attention in the industry. In this study, different SRB concentration (0%, 3%, 5% and 7%) and water cement ratio (0.4w/c, 0.5w/c and 0.6w/c) was investigated in term of compressive strength and water penetration. Since the sample curing in saline water, thus, the sample on chloride condition also investigated accordingly. Compressive strength and water penetration test were performed at the stage of 28th, 56th, 90th, 180th and 360th day of curing period. Test results indicated that the best SRB concentration to be mixed in bio-concrete was 5% while 0.5w/c for water cement ratio. Both values enhanced significantly the compressive strength and reduced porosity and water penetration of bio-concrete. The maximum increased of compressive strength in 0.5w/c is 58.6MPa was observed with 5% of SRB on the day 180 of curing time. Meanwhile, the lowest water penetration was recorded on the last day (day 360) of curing with 2.93cm at the 5% and 0.6w/c of SRB concentration and water cement ratio, respectively. These improvements were due to deposition on the SRB cells within the pore of the concrete cube as cured in chloride water. Results of this study demonstrated the role of SRB induced calcium carbonate precipitation in improving the concrete structure cured in extreme condition in term of compressive strength and water penetration.
format	Article
author	Teddy, T. J.M., Irwan Othman, N. Gani, P.
author_facet	Teddy, T. J.M., Irwan Othman, N. Gani, P.
author_sort	Teddy, T.
title	Bio-concrete on chloride condition: effect on compressive strength and water penetration
title_short	Bio-concrete on chloride condition: effect on compressive strength and water penetration
title_full	Bio-concrete on chloride condition: effect on compressive strength and water penetration
title_fullStr	Bio-concrete on chloride condition: effect on compressive strength and water penetration
title_full_unstemmed	Bio-concrete on chloride condition: effect on compressive strength and water penetration
title_sort	bio-concrete on chloride condition: effect on compressive strength and water penetration
publisher	Construction Research Institute of Malaysia (CREAM)
publishDate	2018
url	http://eprints.uthm.edu.my/4380/1/AJ%202018%20%2872%29.pdf http://eprints.uthm.edu.my/4380/
_version_	1738581243236188160
score	13.211869

Bio-concrete on chloride condition: effect on compressive strength and water penetration

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