建筑垃圾作为路基填料的资源再利用

Reuse of Construction Waste as Subgrade Filler Resources

为了研究建筑垃圾作为路基填料的使用性能,通过标准击实试验和加州承载比试验,分别就再生粗骨料掺量和砖混凝土比例两个因素对建筑垃圾路基填料性能的影响进行了系统的实验,分析了建筑垃圾用于路基填料的可行性。实验结果表明:再生粗骨料掺量在30%~40%之间时,混合料的最大干密度、CBR值到达最大值;且试验中所测得CBR值在30%~45%之间,完全满足现行规范的要求,可以应用于路基填筑工程中。

In order to study the performance of construction waste as a subgrade filling material, the performance of construction waste as a subgrade filler were studied through standard compaction tests and CBR tests.A systematic experiment was conducted on the effects of recycled coarse aggregate content and brick-concrete ratio on the performance of construction waste.The feasibility of construction waste used in subgrade filling were analyzed.Experimental results show that when the recycled coarse aggregate content is between 30% to 40%,the maximum dry density and CBR value of the mixture reach the maximum.The CBR value measured in the test is between 30% to 45%.It completely meets the requirements in the current specifications.so the construction waste can be applied to subgrade filling works.