再生混凝土路用性能的试验研究

Experimental Sudy on Recycled Concrete Properties

利用旧路面混凝土块破碎而成的骨料,进行了再生混凝土的性能试验,主要测试了再生混凝土的抗压强度、抗折强度、干缩变形和抗冻性能。结果表明,所配制的再生早强型和再生快修型混凝土具有较好的力学性能和耐久性能,可用于高速公路混凝土路面的养护维修工程。

The performance tests have been carried out for fresh and hardened properties of the recycled concrete used to repair the damaged pavement,made with the laboratory-crushed recycled concrete aggregate from the destructive pavement.By measuring the compressive strength,flexural strength,drying shrinkage and freeze-thaw resistance,it is shown that both the early-strength and the rapid-repairing recycled concrete have good mechanics performance and durability,which can be utilized to repair the heavy traffic pavement.