All rights reserved by www.ijaresm.net ISSN : 2394-1766 1 IMPROVEMENT IN COMPRESSIVE STRENGTH OF CONCRETE BY INCLUSION OF BACILLIOUS PESTURI BACTERIA Akshaykumar Ardeshana 1 , Dr. Jayeshkumar Pitroda 2 , Dr. Digvijaysinh Rana 3 Final Year Student, ME C.E. &M., BVM Engg. College, V.V. Nagar, Gujarat, India 1 Assistant professor, Civil Engg. Dept., BVM Engg. College, V.V. Nagar, Gujarat, India 2 Assistant professor, ARIBAS College, New V.V. Nagar, Gujarat, India 3 Abstract: There are millions of bacteria available, and certain of it can be used in the construction industry for enhancement of the overall construction. Recently, it is found that microbial mineral precipitation resulting from metabolic activities of favorable microorganisms in concrete improved the overall behavior of concrete. The process can occur inside or outside the microbial cell or even some distance away within the concrete. Often bacterial activities simply trigger a change in solution chemistry that leads to over saturation and mineral precipitation. Use of these Bio mineralogy concepts in concrete leads to potential invention of new material called ―Bacterial Concrete. And this paper represents that how inclusion of bacteria in concrete affects compressive strength of concrete. Different proportions of 10 5 , 10 6 , 10 7 , 10 8 and 10 9 cells/ml concentration were added in concrete and compressive strength was tested. Results indicate improvement in compressive strength of concrete after inclusion of bacteria. Keywords: Bacteria, Bacterial Concrete, Calcite Precipitation, Bacillious Pasturi, Construction Industry, Microorganisms. I. INTRODUCTION Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometers in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust. Microbial mineral precipitation resulting from metabolic activities of favorable microorganisms in concrete improved the overall behavior of concrete. The process can occur inside or outside the microbial cell or even some distance away within the concrete. Often bacterial activities simply trigger a change in solution chemistry that leads to over saturation and mineral precipitation. Use of these Bio mineralogy concepts in concrete leads to potential invention of new material called ―Bacterial Concrete. Bacilious pesturi bacteria were added in concrete for various proportions.
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All rights reserved by www.ijaresm.net ISSN : 2394-1766 1
IMPROVEMENT IN COMPRESSIVE STRENGTH OF
CONCRETE BY INCLUSION OF BACILLIOUS PESTURI
BACTERIA Akshaykumar Ardeshana
1, Dr. Jayeshkumar Pitroda
2, Dr. Digvijaysinh Rana
3
Final Year Student, ME C.E. &M., BVM Engg. College, V.V. Nagar, Gujarat, India 1
Assistant professor, Civil Engg. Dept., BVM Engg. College, V.V. Nagar, Gujarat, India 2
Assistant professor, ARIBAS College, New V.V. Nagar, Gujarat, India 3
Abstract: There are millions of bacteria available, and certain of it can be used in the
construction industry for enhancement of the overall construction. Recently, it is found
that microbial mineral precipitation resulting from metabolic activities of favorable
microorganisms in concrete improved the overall behavior of concrete. The process can
occur inside or outside the microbial cell or even some distance away within the concrete.
Often bacterial activities simply trigger a change in solution chemistry that leads to over
saturation and mineral precipitation. Use of these Bio mineralogy concepts in concrete
leads to potential invention of new material called ―Bacterial Concrete. And this paper
represents that how inclusion of bacteria in concrete affects compressive strength of
concrete. Different proportions of 105, 10
6, 10
7, 10
8 and 10
9 cells/ml concentration were
added in concrete and compressive strength was tested. Results indicate improvement in
compressive strength of concrete after inclusion of bacteria.