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Research Journals >
Indian Journal of Experimental Biology (IJEB) >
IJEB Vol.44 [2006] >
IJEB Vol.44(04) [April 2006] >
| Title: | Development of bioconcrete material using an enrichment culture of novel thermophilic anaerobic bacteria |
| Authors: | Ghosh, P
Mandal, S
Pal, S
Bandyopadhyaya, G
Chattopadhyay, B D |
| Keywords: | Aanaerobic bacteria
Compressive strength
Concrete
Microbial precipitation
Mortar
Thermophilic bacteria |
| Issue Date: | Apr-2006 |
| Publisher: | CSIR |
| Abstract: | In the
biosphere, bacteria can function as geo-chemical agents, promoting the
dispersion, fractionation and/or concentration of materials. Microbial mineral
precipitation is resulted from metabolic activities of microorganisms. Based on
this biomineralogy concept, an attempt has been made to develop bioconcrete
material incorporating of an enrichment culture of thermophilic and anaerobic
bacteria within cement-sand mortar/concrete. The results showed a significant
increase in compressive strength of both cement-sand mortar and concrete due to
the development of filler material within the pores of cement sand matrix.
Maximum strength was observed at concentration 105cell/ml of water
used in mortar/concrete. Addition of Escherichia
coli or media composition on mortar showed no such improvement in strength. |
| Page(s): | 336-339 |
| ISSN: | 0975-1009 (Online); 0019-5189 (Print) |
| Source: | IJEB Vol.44(04) [April 2006]
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