Carriers of Healing Agents in Biological Self-Healing Concrete

Concrete is the most widely used material in civil engineering, but due to its inherent brittleness, generation of cracks easily occurs. Crack healing an effective method for restoring mechanical properties concrete and improving durability. Of all current crack methods, microbial-induced calcium carbonate precipitation technology incredibly promising self-healing strategy that has received widespread attention field repair. As biological agent difficulty resisting high alkali environment concrete, protection required when it cracks.