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多碎石沥青混凝土SAC,是我国自主研究开发成功的粗集料断级配沥青混凝土。它从1988年诞生到目前,已经历了16年。在这个艰难漫长的岁月中,它像一颗充满生机和活力的幼苗,冲破重重阻力逐渐成长,现已趋向成熟。经过16年的不懈努力、潜心研究,从最初只用SAC16做抗滑表层,发展到今天,已经可以在高速公路上使用SAC10～SAC16做表面层,使用SAC20和SAC25做中面层,以及使用SAC25和SAC30做底面层的系列矿料级配。
Multi-gravel asphalt concrete SAC, China’s independent research and development success of coarse aggregate graded asphalt concrete. It has been 16 years since it was born in 1988 up to now. In this difficult and long time, it is like a vigorous and vigorous young seedling. After breaking through the heavy resistance, it has gradually grown up and has now matured. After 16 years of unremitting efforts, painstaking research, from scratch initially SAC16 to do anti-skid surface, developed today, the highway has been the use of SAC10 ~ SAC16 surface layer, the use of SAC20 and SAC25 to do the middle layer, and the use of SAC25 And SAC30 do the bottom of the series of mineral grade.