EXPERIMENTAL STUDY ON SELF HEALING WITH BACTERIAL CONCRETE
Bellamkonda Manju Priyanka
Structural Engineering, VFSTR Deemed to be university , IN
Maddi Anirudh
Structural Engineering, VFSTR Deemed to be university , IN
Keywords: self – remediating, microorganisms, Bacillus Sphaericus, dormant bacteria, Calcium carbonate.
Abstract
concrete cracks are the common phenomenon that has no immediate and proper treatment; these cracks lead to significant reduction in concrete structure life and require costly repairs. Although it is not possible to reduce the formation of crack, remediation of cracks in concrete has been possible in many ways. It has been shown that technique in fitting cracks with environmentally friendly biologically process; that is continuous self – remediating process. In this paper an attempt has been made to use different microorganisms, i.e.; bacillus sphaericus so as to observe the strength gain and also healing property as a result of mixing those bacteria in concrete with water. From the tests conducted on various specimens of bacterial concrete using different concentrations, a clear comparison is made for strengths of different specimens of bio concrete using different concentrations and convention concrete the results obtained from the experiment concludes that when water enter in the concrete after the formation of cracks activates the
dormant bacteria (inactive) the process of metabolically mediated calcium carbonate precipitatation and it increased the strength of bio concrete as compared to the conventional concrete.
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