砂岩在SMA-16路面中的应用

因国内SMA路面大多采用玄武岩、辉绿岩等岩浆岩,因其资源有限,产地稀少,以及加工、运输等原因致使成本居高不下。邵永高速公路在保证工程质量的前提下,合理降低工程建设造价,集料选取以"因地制宜,节约成本"为原则,上面层5cmSMA-16路面粗集料采用永州市双牌县麻江石场变质砂岩。该文详细介绍砂岩在SMA路面中的应用情况,并从原材料及集料性能、配合比设计、沥青混合料路用性能、施工技术及应用、路面交工质量评定情况作了详细论述。

Application of Sandstone in SMA-16 Pavement

SMA pavements in China are mostly used of the basalt,diabase and other igneous rocks because of its limited resources,rare producing,and the processing,transportation and other reasons led to high costs.In the premise of ensuring project quality,Shaoyong Expressway reasonably reduces the engineering construction costs.The selection of aggregate is based on the principle of "local conditions,cost saving".The top layer of 5cmSMA-16 pavement coarse aggregate is the metamorphic sandstone from Yongzhou City Shuangpai County Majiang Stone Yard.The article introduces in detail the application of sandstone in SMA pavement,and discusses in detail the raw material,aggregate performance,design of mix ratio,road performance of asphalt mixture,construction technology and application,and quality evaluation of pavement completion.