Polypropylene fiber is also called synthetic fiber. It is a kind of synthetic fiber with very light texture, strong stability, not easy to rot, not easy to mold and very durable. Polypropylene fiber is also divided into long fiber and short fiber. Many people think that polypropylene fiber can only be used in the textile industry but also in the construction industry. Today we will talk about when concrete meets polypropylene fiber. What spark?