抗裂纤维

复合型聚丙烯抗裂纤维砂浆的研制与应用

The Development and Application of Compound Polypropylene Anti - crack Mortar

一种混凝土抗裂纤维加强筋。

The utility model relates to a concrete anti-crack fiber reinforcement bar .

对PVA纤维水泥砂浆抗裂性以及PVA纤维混凝土抗冲击韧性的研究结果表明，PVA纤维的加入可以明显改善水泥基材料的抗裂性能和抗冲击韧性。

The result of a study on anti - crack quality of PVA fiber mortar and impact toughness of PVA fiber concrete indicated that blending PVA fiber into cement material could evidently improve anti - crack quality and impact toughness of cement material .

研究结果表明适量复掺矿物掺合料能提高混凝土抗裂性能，聚丙烯腈纤维能提高混凝土抗裂性能，随着水泥强度等级的提高，混凝土抗裂性能下降；

In the light of experimental results and theoretical analysis , this paper indicated : Proper admixture quantity can increase concrete cracking capability . Polyacrylonitrile fiber can improve concrete cracking capability . As cement strength grade increased , concrete cracking capability declined .

钢纤维混凝土在冲击荷载下的抗裂性能是普通混凝土的3～4倍.此外，钢纤维在混凝土中的抗裂作用还与纤维的几何形状和表面清洁程度及粗糙度有关。

The impact resistance of steel fiber reinforced concrete is 3 ~ 4 times to that of normal concrete . The crack resistance property of steel fiber in concrete is related to its shape roughness and cleanness of its surface .