橡胶混凝土疲劳性能的试验研究

Test of Fatigue Performance of Rubberized Concrete

通过试验研究了橡胶混凝土的三点弯拉疲劳性能,并在不同应力水平以及不同橡胶掺量下对橡胶混凝土的疲劳性能进行了对比分析.结果表明:在普通混凝土中加入橡胶粉,虽然混凝土的抗压强度有不同程度的降低,但可提高其韧性和变形性能,并且改善了疲劳性能,延长了其使用寿命.

The fatigue property of rubberized concrete under three-point flexure was studied by test, by comparison with normal concrete under the different stress level and different rubber dosage. The test results show that rubber powder influences the compressive strength of concrete. The greater the rubber dosage is, the greater the strength decrease of concrete. The addition of rubber improves the toughness and deformation ability of the normal concrete. Especially it can improve the fatigue performance and prolong the service life of concrete.