沈大高速公路的SMA路面

SMA Pavement on Shenda Expressway

根据辽宁高速公路路面SMA的研究和实践 ,总结和分析了SMA的受力机制及施工特点 ,认为SMA受力主要由粗集料组成的骨架承担 ,沥青玛蹄脂起着对骨架的粘接和密水作用 ,指出了配合比和施工过程中对形成SMA受力结构的影响因素。

According to the research and practice of SMA pavement on Shenda Expressway,this paper summarised and analysed mechanics principle and construction features of SMA,and considered that it is the skeleton consisted coarse aggregate support force. Asphalt adhere and seal watertight to skeltons, finally pointed out influence factors on SMA structure such as mixture ratio.