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近年来随着我国公路建设的飞速发展,SMA路面技术得到广泛应用,对石料也提出了更高的要求。SMA高等级路面是世界发达国家首先推广使用的沥青路面。1999年深圳市滨海大道高等级沥青路面也采用了SMA施工,应用效果得到国内外专家的好评。目前国内很多高等级道路都采用了SMA路面,所用石料都要进行物理、力学等技术性能试验。对石质的坚硬性、耐磨性、颗粒形状、沥青黏附性等技术指标,都要符合SMA16,SMA13高等级沥青路面的技术指标要求。石料破碎机械的发展与技术进步长期以来,我国公路建设用石料多
In recent years, with the rapid development of highway construction in our country, SMA pavement technology has been widely used and put forward higher requirements for stone materials. SMA high grade pavement is the first asphalt pavement in developed countries in the world. In 1999, the high-grade asphalt pavement of Binhai Avenue in Shenzhen also adopted SMA construction, and the application effect was well received by domestic and foreign experts. At present, many domestic high-grade roads are used SMA pavement, the use of stone to be physical, mechanical and other technical performance tests. Stone hardness, wear resistance, particle shape, asphalt adhesion and other technical indicators, to meet the SMA16, SMA13 high grade asphalt pavement technical indicators. Stone crushing machinery development and technological progress For a long time, China’s highway construction with more stone