Show simple item record

dc.contributor.authorAchal, V.
dc.contributor.authorMukherjee, Abhijit
dc.contributor.authorReddy, M.
dc.date.accessioned2017-01-30T12:03:29Z
dc.date.available2017-01-30T12:03:29Z
dc.date.created2014-09-02T20:01:16Z
dc.date.issued2013
dc.identifier.citationAchal, V. and Mukherjee, A. and Reddy, M. 2013. Biogenic treatment improves the durability and remediates the cracks of concrete structures. Construction and Buidling Materials. 48: pp. 1-5.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/17698
dc.identifier.doi10.1016/j.conbuildmat.2013.06.061
dc.description.abstract

Microbially induced calcium carbonate precipitation is a naturally occurring biological process that has various applications in remediation and restoration of range of building materials. In the present study the role of bacteria Bacillus sp. on the durability properties and remediation of cracks in cementitious structures were studied. ‘‘Biocement’’ induced by a Bacillus sp. lead to more than 50% reduction in the porosity of mortar specimens, while chloride permeability of concrete changed from ‘‘moderate’’ to ‘‘very low’’ as indicated by rapid chloride permeability test. The bacteria successfully healed the simulated cracks of depths including 27.2 mm in cement mortars with increase in the compressive strength as high as 40% of that of control. The results clearly showed microbially induced calcium carbonate precipitation can be applied for various building materials for remediation of cracks and enhancement of durability.

dc.publisherElsevier BV
dc.subjectPorosity - Rapid chloride penetration test
dc.subjectBiocement
dc.subjectBacillus sp
dc.subjectMicrobially induced calcite precipitation
dc.subjectUrease
dc.subjectSelf-healing
dc.titleBiogenic treatment improves the durability and remediates the cracks of concrete structures
dc.typeJournal Article
dcterms.source.volume48
dcterms.source.startPage1
dcterms.source.endPage5
dcterms.source.issn0950-0618
dcterms.source.titleConstruction and Buidling Materials
curtin.accessStatusFulltext not available


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record