1) SMA asphalt SMA沥青砼1. By combining with the SMA asphalt pavement trial road construction of Jiangxi Traffic Bureau Lewei express highway,this paper discusses the processing technology and method in SMA asphalt pavement construction from the aspect of test and measurement,constitution of ...
沥青马蹄脂碎石混合料,是一种新型的沥青混合料结构,它起源于20世纪60年代的德国,德文称Splitmastixasphalt.20世纪90年代初引入美国,被称为 Stone Mastic Asphalt,缩写为SMA。1993年,SMA在我国首都机场高速公路首次应用。特点SMA是一种由沥青、纤维稳定剂、矿粉和少量的细集料组成的沥青玛蹄脂填充间断级配的粗集料骨架...
The compaction degree of asphalt mixture directly affects the tensile or compressive strength of the pavement structure,due to the high elastic crumb rubber exists in asphalt rubber mixture,its compaction characteristics is quite different from ordinary asphalt mixture. According to research conte...
沥青玛蹄脂碎石混合料(stone matrix asphalt,简称SMA)是一种由沥青、纤维稳定剂、矿粉及少量细集料组成的沥青玛蹄脂结合料,填充间断级配的粗骨料骨架间隙而组成的沥青混合料。使用情况表明,SMA路面结构不仅在高温、重载时车辙变形量低,而且低温性能良好。SMA路面集中了AC路面的空隙率小、水稳定性及耐久性好,和AM路面...
沥青玛蹄脂碎石混合料(Stone mastic asphalt,简称SMA) 它是一种由沥青结和料、矿粉、纤维与细集料组成的沥青马蹄脂结合物填充在间级配的粗集料骨架间隙所形成的沥青混合料。它是由足够的沥青结合料和具有相当劲度的沥青玛蹄脂胶浆填充在粗集料形成的石—石嵌挤结构的空隙中形成的。因此,它具有抗高温、低温稳定性...
Keywords:highwayconstruction;SMA——13S;upperlayer;modifiedasphalt 1 工程概况 某公路等级为双向四车道高速公路,主线分 为新建段、改建段2个部分,整体式路基和分离式 路基。新建段为整体式路基,设计速度lOOkm/h, 路基宽度26m;改建段为整体式路基,设计速度 ...
Fibers are conventionally used as stabilizers in the construction of Stone Matrix Asphalt (SMA) pavements. These fibers are not manufactured in India and are imported from Germany. Naturally occurring jute fibers were coated with low viscosity binder and were used in the present study as an ...
superpave路面与SMA路面
SMA路面渗水性能试验研究与评价分析
The Mix Proportion is 1#(16-9.5mm, steel slag):2#(9.5-4.75mm, steel slag):3#(3-4.75mm, basalt):4#(3-0mm, basalt):5# (mineral powder)=38%:36%:8%:8%:10%. The optimal asphalt content (OAC) is 6.4%. The mass percentage of steel slag is reached 74%. The costs of this ...