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SMA是Stone Masic(Matrix)Asphalt的缩写,全称叫沥青玛蹄脂碎石混合料,是20世纪60年代中期德国道路工作者为提高路面的抗滑能力,抵抗带钉轮胎对路面破坏而开发的新技术,它能显著地提高沥青混凝土的路用性能,特别适用于重交通道路。下面结合改性沥青SMA混合料在合肥—安庆高速公路中的应用,笔者谈一谈对这种混合料设计的理解,请同仁指正。
SMA is an acronym for Stone Masic (Matrix) Asphalt, called asphalt mastic asphalt mixture, which was developed in the mid-1960s by German road workers to improve the anti-skid ability of pavement and to resist the damage to the pavement with spiked tires New technology, it can significantly improve the road performance of asphalt concrete, especially for heavy traffic roads. The following combination of modified asphalt SMA mixture in Hefei - Anqing Expressway application, I talk about the understanding of this mixture design, please correct me.