成型方式和养护条件对多孔改性水泥混凝土性能的影响

Influence of Molding Method and Curing Conditions on Properties of Porous Modified Cement Concrete

由于添加了水泥改性剂且空隙率大,不同成型方式和养护条件对多孔改性水泥混凝土的性能产生不同的影响。通过不同成型方式和不同养护条件对比试验,检测混凝土的空隙率、毛体积密度、抗压强度、抗弯拉强度等性能。试验结果表明,多孔改性水泥混凝土成型宜采用短时间轻振或人工插捣的方式;适宜的养护条件是早期保湿养护,而后进行自然养护。

As a result of adding cement modifier and large porosity, porous modified cement concrete has different properties on different molding method or curing condition. Through the comparative test of different molding methods and different curing condition, concrete porosity, bulk density, compressive strength and flexural strength are detected. The test results show that, porous modified concrete molding should adopt the method of light vibration in a short time or artificial pound. Its curing condition is standard curing early, then natural curing.