Improvement in the compressive strength of cement mortar by the use of a microorganism - Bacillus megaterium

V. Achal*, R. Siddique, M. S. Reddy, A. Mukherjee

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

This study reports the results of compressive strength of cement mortars incorporating microorganism. The effect of addition of microorganism, Bacillus megaterium, on the compressive strength of cement mortar cube has been studied. Ordinary Portland cement (OPC) was used to prepare mortar with different cell concentration of microorganism in the mixing water. A significant increase in the compressive strength of cement mortar cube at different ages (3,7,14 and 28 days) was achieved with the addition of A megaterium. Increases in compressive strength were observed maximum in case of 105 cells/ml of microorganism. This improvement in compressive strength is due to deposition on the microorganism cell surfaces and within the pores of cement-sand matrix.

Original languageEnglish
Title of host publicationExcellence in Concrete Construction through Innovation - Proceedings of the International Conference on Concrete Construction
Pages27-29
Number of pages3
StatePublished - 2009
Externally publishedYes
EventInternational Conference on Concrete Construction - London, United Kingdom
Duration: 9 Sep 200810 Sep 2008

Publication series

NameExcellence in Concrete Construction through Innovation - Proceedings of the International Conference on Concrete Construction

Conference

ConferenceInternational Conference on Concrete Construction
Country/TerritoryUnited Kingdom
CityLondon
Period9/09/0810/09/08

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