Fire behavior polypropylene fiber of high performance concrete is less than common concrete,it is an efficient means to resist crack when adding polypropylene fiber to concrete.

• 高性能混凝土的抗火性能比普通混凝土差,在混凝土中加入聚丙烯纤维可作为一种有效的混凝土温差补偿抗裂手段。