本文通过试验确定聚丙烯纤维的掺量及混凝土最佳配合比,试验表明,在混凝土中掺入适量的聚丙烯纤维能有效改善混凝土材料物理性能,具有较好的抗渗和抗冻性,并能减少混凝土的早期干缩及塑性裂纹,提高混凝土的抗裂性。通过实际工程中应用取得了显著效果。 In this paper, the test to determine the amount of polypropylene fibers and the best mix of concrete, the test showed that the incorporation of appropriate amount of polypropylene fiber concrete can effectively improve the physical properties of concrete materials, has good impermeability and frost resistance, and Can reduce the early shrinkage of concrete and plastic cracks, improve the crack resistance of concrete. Through the actual project has achieved remarkable results.