橡胶混凝土与普通混凝土路面路用性能预测对比

橡胶颗粒水泥混凝土由于具有较好的变形能力和韧性等优点,在道路工程中得到越来越多的重视。采用AASHTO的力学经验指南对橡胶颗粒水泥混凝土与基质水泥混凝土路面在设计年限内的使用性能进行预测。实测橡胶颗粒水泥混凝土与基质水泥混凝土的抗折强度、弯拉模量作为输入参数,气候模型采用与中国北方气候相近的明尼苏达州气候模型。通过对两种混凝土路面使用性能预测可知:橡胶混凝土路面在使用的过程中,其平整度、断板率、错台、累积损伤均小于基质混凝土路面。因此,在荷载与气候的作用下,橡胶混凝土路面的使用性能优于基质混凝土路面。

The road performance comparison of rubber cement concrete and common cement concrete

The rubber cement concrete has got more and more attention in the road engineering because of its good ability of deformation and toughness.In this test,the performance of the rubber cement concrete pavement in the design life is predicted by the AASHTO mechanistic-empirical guide.The measured flexural strength and flexural tensile module of the rubber cement concrete and the common cement concrete is used as input parameters,the climate models is used to the Minnesota climate models which is similar to nor...