The cement blanket, also known as the cement canvas, is a three-dimensional fiber composite structure made of polyethylene and polypropylene fiber filaments. It is a special impregnated soft cement cloth. When exposed to water, the hydration reaction takes place, and the rapid hardening takes place. Before solidification, it can be cut and cut at will, anti-cracking, fire, anti-corrosion, it can be used under extremely hot and cold conditions, simple construction period is short, low-carbon environmental protection.