中文摘要：

为了研究聚丙烯纤维砂浆的抗渗性能,对聚丙烯纤维质量基准比Mf为0~0.900%的聚丙烯纤维砂浆进行稠度、分层度、表观密度、凝结时间、抗压强度、抗折强度、拉伸黏结强度、耐碱性、耐热性、吸水率、干缩率和抗渗压力的测试.试验结果表明：随着Mf的增加,聚丙烯纤维砂浆的稠度、分层度、拉伸黏结强度降低,抗折强度先升高后降低,吸水率和干缩率先降低后升高;当Mf从0增加至0.450%时,聚丙烯纤维砂浆的抗渗性能持续提高;当Mf从0.450%增加至0.900%时,砂浆的抗渗性能逐步降低.

英文摘要：

To investigate the anti-seepage behavior of polypropylene fiber reinforced mortar,the experiments of construction performance and mechanical properties of consistency,stratification,apparent density,setting time,compressive strength,flexural strength,tensile and adhesion strength,alkali resistance,heat resistance,water absorption rate,drying shrinkage rate and impermeability pressure were conducted.The quality benchmark ratio（Mf） of polypropylene fiber was ranged from 0 to 0.900%.The experimental results show that with the increasing of Mf,consistency,stratification and adhesion strength of polypropylene fiber reinforced mortar are decreased,and flexural strength increases first with later decreasing,while the water absorption rate and drying shrinkage rate decrease first with later increasing.The impermeability of mortar is obviously improved when Mfincreases from 0 to 0.450%,and the impermeability of mortar is reduced gradually when Mfincreases from 0.450% to 0.900%.