聚合物纤维对聚苯乙烯颗粒保温砂浆性能的影响

Influence of Polypropylene Fiber on the Performance of Thermal Insulating Mortar Made from Expanded Polystyrene Particles

主要研究纤维种类、掺量和长度对EPS保温砂浆抗裂性的影响。结果表明,掺入纤维对EPS保温砂浆有显著的增强作用,其中以聚丙烯纤维增强效果最佳。聚丙烯纤维使EPS保温砂浆收缩率降低,断裂能增大,裂缝指数显著降低,表明EPS保温砂浆抗裂性得到显著改善。聚丙烯纤维的适宜掺量为0.1%,最佳长度范围为12~15 mm。

The influences of the types,dosage and length of fibers on EPS thermal insulating mortar were studied.The results show that the addition of fibers have obvious reinforcing effects on EPS thermal insulating mortar.With the addition of polypropylene fiber,the shringkage and cracking index of mortar is obviously decreased,and the cracking energy is increased,which shows that the cracking resistance of EPS mortar is markedly improved.The proper dosage of polypropylene fiber is 0.1% and the optimal length range ...