Effect of ureolytic bacteria on compressive strength and water permeability on bio-concrete

被引:0
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作者
Othman, N. [1 ,2 ]
Irwan, J. M. [2 ]
Alshalif, A. Faisal [2 ]
Anneza, L. H. [2 ]
机构
[1] Univ Tun Hussein Onn Malaysia, Fac Civil & Environm Engn, Micropollutant Res Ctr MPRC, Parit Raja, Johor, Malaysia
[2] Univ Tun Hussein Onn Malaysia, Fac Civil & Environm Engn, Jamilus Res Ctr Sustainable Construct JRC, Parit Raja, Johor, Malaysia
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TU [建筑科学];
学科分类号
0813 ;
摘要
This paper presents on results of ureolytic bacteria effect on compressive strength and water permeability of bio-concrete. Ureolytic bacteria that was used in this study was isolated from fresh urine. Water was partially replaced through three different percentages 1%, 3%, and 5% by liquid of growth medium containing ureolytic bacteria. Tests were conducted on the 7th, 14th, and 28th days of the specimens curing. A maximum increase of compressive strength (23%) and reduction of water permeability (10.4%) is achieved by 3% ureolytic bacteria concentration. The improvement in compressive strength and water permeability was due to the deposition on the bacteria cell surface within the pores.
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页码:335 / 338
页数:4
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