MICROBIAL CARBONATE PRECIPITATION TO ENHANCE THE QUALITY OF RECYCLED AGGREGATES
Keywords:
Bacillus Pasteurii, Compression strength test, Split tensile strengthAbstract
A huge amount of water wastage reflecting the environmental degradation is the main drawback of usage of
recycled aggregates in concrete which on contrast is used for the idea of preventing vulnerability of environmental
degradation by decreasing the concrete as to decrease dumping sites of concrete waste.
The another important environment friendly aspect is of the self-repairing properties of Microbial concrete which
nowadays attracts the attention of researchers. A novel strategy that restores or remediates proposed structures is biodeposition method of calcium carbonate using bacteria, such as those in the genus of the Bacillus species.
Treatment of the recycled aggregates in the bacterial culture and nutrients for its survival to be done. After this we will
see the changes due to bacteria in aggregates. After studying the effect - Experiments to be carried out on the concrete
made up of optimum replaced recycled aggregates as well as aggregates treated by bacteria to check the strength it
gains to be performed with compression test, split tensile strength test and aggregate compaction value test and
aggregate impact value test. The paper will do the advancement in this direction which will decrease the permeability as
its usual crack filling nature as well increase the life and dumping problems
