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上海市公路管处理一、前言上海市用粉煤灰筑路到目前为止,可分为两个阶段。第一阶段在1965年～1967年期间,主要用在交通量较少的远郊公路,通公社及农场的道路等,因此主要采用的是粉煤灰——石灰——土(我们简称为“二灰土”)。其优点是不需要碎石等硬骨料,施工亦较方便,其缺点是铺筑初期的强度很低,不能承受汽车交通的行驶。此后一个阶段,电厂发电改烧石油,粉煤灰就没有了。1977年底以来,华主席为首的党中央确定了合理
Shanghai Highway Management I. Introduction Shanghai fly ash road so far, can be divided into two stages. The first phase was mainly used on suburb roads, communes and farms with less traffic between 1965 and 1967. Therefore, fly ash-lime-soil (we abbreviated as “bis Lime soil ”). The advantage is that it does not require hard aggregate such as gravel, construction is also more convenient, the disadvantage is the low initial strength of paving, can not afford the traffic of motor vehicles. After a stage, the power plant to burn oil, fly ash gone. Since the end of 1977, the party Central Committee headed by Chairman Hua has set a reasonable point