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Research Article

JCR. 2020; 7(18): 765-769


FEASIBILITY AND PERFORMANCE OF BACTERIA BASED SELF- HEALING MECHANISM IN CONCRETE

Bypaneni .Krishna Chaitanya, Chunchu Bala Rama Krishna, R.Vaishnav Kumar, N Venkata Sairam Kumar, S. Srikanth reddy.

Abstract
In this learn about the impact of addition of micro organism as bacillus subtillis (109 cells/ml) on compressive energy in direct technique at
unique dosages as BSC0.4%, BSC 0.5%, BSC 0.6% , BSC 0.7%, BSC 0.8%,and BSC 0.9% of weight of cement from the combine is studied and
indicates that Compressive energy is multiplied by using 0.8%, 5.2%, 11.4% at bacterial percentages of 0.4%, 0.5%, 0.6% and diminished with
the aid of 24.56%, 26.3%, 17.5% at bacterial percentages of 0.7%, 0.8%, 0.9% at 7 days of curing and power is elevated by way of 2.2% ,11.7%
& 22.8% at bacterial percentages of 0.4%, 0.5%, 0.6% and diminished by using 22%,26%, & 22% at bacterial percentages of 0.7%,
0.8%,& 0.9% at 28 days of curing with traditional concrete. The quality of concrete after 7 days is good and 28 days of curing is excellent
from UPV. In X - ray diffraction the phases acquired at 2theta cost is 29.8 & 70 having height depth of 678 & 1000 corresponds to
calcite at bacterial proportion of 0.6% for 28 days of curing and itís additionally suggests small peaks due to morphology at unique 2theta values.
In SEM offers microstructure pictures proven a white precipitate of non-stop matrix of layers joined collectively at 28 days of curing at bacterial
proportion of 0.6% .It is recognized that Self-healing potential of concrete by way of the usage of Bacteria Subtillis are accelerated from 0.4% to
0.6%.

Key words: Scanned Electron Microscope , X-ray diffraction, and Ultrasonic pulse velocity, Bacillus subtillis.



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