Crack-resistant fiber is a product made from 100% polypropylene, meticulously crafted through a unique process and equipment involving melting, extrusion, drawing, and cutting. It is specifically designed to be added to mortar and cement concrete, where it serves as a crack-resistant and waterproofing additive.

A type of crack-resistant fiber is a cellulose fiber, made from a special plant species in cold regions through a series of unique chemical treatments and mechanical processing. It inherently possesses natural hydrophilicity and high strength and modulus. Due to its natural cell division and growth in plant cells without artificial production, the surface exhibits a strong gripping force. In subsequent processing, the fibers are converted into sheet monomers using special materials, facilitating transportation and application. Under the action of water immersion and the friction force of mixers, the sheet monomers easily disperse into fiber filaments, thereby providing crack resistance. This effectively enhances the mechanical properties, frost-thaw resistance, and impermeability of concrete.