Research on Application of Self-healing Waterproofing Concrete
Self-healing waterproofing concrete includes hydration reaction type,microcapsule mechanism,microfiber mechanism and microorganisms etc.This article focuses on the principle of microbial self-healing waterproofing concrete and tests the repair effect of microbial self-healing waterproofing concrete containing Bacillus subtilis on cracks through experiments.The results indicate that microbial self-healing waterproofing concrete containing Bacillus subtilis can induce the generation of calcium carbonate precipitation through bacteria to seal cracks,and its self-healing performance is far superior to ordinary concrete.