What are the characteristics and properties of polypropylene fiber

Polypropylene fiber, also known as engineering fiber, concrete fiber, crack resistant fiber, crack resistant fiber or synthetic fiber, plastic fiber, etc., is a high-strength bundle fiber mainly made of polypropylene as the raw material. Adding concrete or mortar can effectively control micro cracks caused by factors such as plastic shrinkage, dry shrinkage, and temperature changes in concrete (mortar), prevent and suppress the formation and development of cracks, greatly improve the crack resistance and impermeability performance of concrete, and enhance its seismic resistance. It can be widely used in bridge decks and airport runway coverings, various applications in mining and tunnel engineering, railway, high-rise buildings, slope fixation, fire prevention facilities, concrete repair, waterproofing engineering for roofs, walls, basements, pools, and rooftop gardens in industrial and civil construction projects, as well as various prefabricated concrete products.