再生骨料透水混凝土性能试验研究

Experimental Study on Performance of Recycled Aggregate Pervious Concrete

为明确再生骨料制备透水混凝土的性能水平和改性方式、水灰比等因素之间关系,对不同水灰比、不同改性方式条件下再生骨料透水混凝土的性能进行研究,结果显示:水灰比为0.45、采用盐酸改性条件下所得混凝土具有最佳透水性能和强度性能,所制备透水混凝土的透水系数最高为11.5mm/s,28d抗压强度最高值为18.7MPa。

In order to clarify the relationship between the performance level,modification method,water-cement ratio and other factors of pervious concrete prepared by recycled aggregate,t the performance of recycled aggregate pervious concrete under different water-cement ratio and different modification methods.The results show that when the water-cement ratio is 0.45,the concrete obtained by hydrochloric acid modification has the best water permeability and strength properties.The highest water permeability coefficient of the prepared pervious concrete is 11.5mm/s,and the highest 28d compressive strength is 18.7MPa.