C25喷射聚丙烯纤维混凝土的试验研究

Experimental Research on C25 Spraying Polypropylene Fiber Concrete

根据聚丙烯纤维的作用机理,试验研究了不同聚丙烯纤维掺量对C25混凝土拌合物性能、混凝土早期和后期的抗压强度、抗渗性能、劈裂抗拉强度及塑性裂缝的影响。研究表明,聚丙烯纤维具有增稠、显著降低混凝土塑性裂缝作用,适当的掺量能改善混凝土的强度。

IBased on mechanism of polypropylene fiber,the effects of different dosages of polypropylene fiber on mixture performance,early and later compressive strength,impermeability,splitting tensile strength and plastic cracks of C25 concrete are studied.The results indicate that polypropylene fiber has the functions of thickening,remarkably reducing plastic cracks and improving strength of concrete by proper dosage.