新型碾压混凝土与聚合物改性水泥混凝土复合式路面施工关键技术研究

Study on the Key Construction Technology of Composite Pavement Composed by Roller Compacted Concrete and Polymer Modified Cement Concrete

为充分发挥碾压混凝土(RCC)与聚合物改性水泥混凝土(PCC)的性能优势,提出了一种新型RCC-PCC复合式路面结构,从其工程设计要求、搅拌、运输、浇筑、振捣、养护工艺与经济性能等方面入手,系统地研究了RCC-PCC复合式路面工程应用的关键施工技术,提出了RCC-PCC复合式路面的工程设计要求及其具体施工工艺,在此基础上成功进行了RCC-PCC复合式路面试验路的铺筑,通过试验路工程长期性能检测,RCC-PCC复合式路面的各项路用性能指标满足设计与相关规范要求,验证了RCC-PCC复合式路面显著的性能优势与广阔的应用前景。

A new RCC-PCC composite pavement is proposed by means of analyzing the properties of roller compacted concrete and polymer modified cement concrete.The RCC-PCC composite pavement takes full advantages of RCC and PCC pavement performance.From the engineering design requirements,mixing,transport,pouring,vibrating,curing technology and other aspects of economic performance,the key applications technologies of RCC-PCC composite pavement are studied systematically.The authors propose the engineering design requirements and construction technology.On the basis,the RCC-PCC test pavement is constructed successfully.Through the long-time quality inspection test,the performances of RCC-PCC composite pavement are able to meet the requirements of correlated design specifications.The significant performance advantages and broad prospects of RCC-PCC composite pavement can be verified by the study.