掺沥青混合料回收料再生混凝土技术的施工实践研究

Research on Construction Practice of Reclaimed Asphalt Pavement Recycled Concrete Technology

选用沥青混合料回收料(RAP)作粗集料,辅以水泥、水、细集料进行再生混凝土的配合比设计,测试其强度,并结合繁大高速公路中分带硬化封闭层试验段施工,对RAP再生混凝土集料选用、配合比确定、施工质量控制等方面进行了研究,总结阐述了RAP再生混凝土在施工过程中的质量控制要点,为RAP再生混凝土在中分带封闭层中的应用提供参考。

Using reclaimed asphalt pavement(RAP)as the coarse aggregate,cement,water,and fine aggregate as supplements,the mix ratio of the recycled concrete was designed and the strength was tested.According to the construction of the test section of the median zone hardened closing layer in Fanda Expressway,this paper studied the aggregate selection,mix ratio determination,and construction quality control of RAP recycled concrete and summarized the key points in construction quality control,providing a reference for the application of RAP recycled concrete in the median zone hardened closing layer.