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针对聚丙烯纤维低弹模混凝土工作性及物理力学性能与普通低弹模混凝土的不同,通过室内试验分析了聚丙烯低弹模混凝土的工作性、强度特性,并开发了一套混凝土耐久性渗透水采集仪,对聚丙烯低弹模混凝土的渗透性和耐久性进行了研究。结果表明,与传统低弹模混凝土相比,聚丙烯低弹模混凝土的抗压强度、弹性模量变化不大,抗拉强度有所提高,抗渗性能明显改善,渗透系数降低了一个数量级左右,耐久性年限进一步提高。
In view of the difference of workability, physical and mechanical properties between polypropylene low modulus concrete and ordinary low-modulus concrete, the working properties and strength characteristics of polypropylene low-modulus concrete were analyzed through laboratory experiments. And a set of concrete durability penetration Water collector, the permeability and durability of polypropylene low modulus concrete were studied. The results show that compared with the traditional low-modulus concrete, the compressive strength and elastic modulus of the polypropylene low-modulus concrete change little, the tensile strength is improved, the impermeability is obviously improved and the permeability coefficient is reduced by an order of magnitude , The durability of life to further improve.