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由于沥青供应短缺,加之其价格日益上扬,使得全国约有四分之一的砂土公路在短时期内还无法铺筑沥青道面。山东省公路局济南市公路管理局和章丘市公路管理局共同研究成功了砂土路面的乳化沥青处理工艺,解决了砂土公路尘土飞扬的问题,取得了明显的经济效益和社会效益。
Due to the shortage of bitumen, coupled with its increasing price, about a quarter of the nation’s sand road can not be paved with asphalt pavement for a short period of time. Shandong Provincial Highway Bureau and Highway Bureau of Jinan City, Zhangqiu Road Administration jointly study the successful sand soil pavement emulsified asphalt treatment technology to solve the sand highway dusty problems, and achieved significant economic and social benefits.