鸡西市公路管理处,在反复试验的基础上,于1986年5月利用煤矸石碴在鸡图线4+050—4+350的路段上铺筑沥青混凝土路面基层,试验路300米,经一个寒暑的使用,效果良好。煤矸石系采煤过程生产的废石。含有少量碳质,因堆积时间长,在高温高压作用下发生自燃,燃后的煤矸石就形成了煤矸石碴(矿区人民俗称煤矸石烧岩)。经分析煤矸石碴的主要化学成分如表1。其化学成分表 Jixi Highway Management Office, on the basis of trial and error, in May 1986 the use of coal gangue ballast in the chicken plot line 4 +050 -4 +350 paving the asphalt concrete pavement base, test road 300 meters, after a Cold summer use, the effect is good. Coal gangue is the waste rock produced during the coal mining process. Containing a small amount of carbonaceous material, due to the accumulation of a long time, spontaneous combustion occurs under the action of high temperature and pressure, the coal gangue after burning forms gangue ballast (commonly known as coal gangue burnt rock). After analysis of the main chemical composition of gangue Table 1. Its chemical composition table