利用当地材料修建黑色路面基础,提高工程质量,降低工程造价,已为道路工程部门所注视。本刊编辑组遵照毛主席的“洋为中用”的教导,收集了部分国外利用碎、砾石;砂;矿渣;加固土;软质石料等当地材料作为黑色路面基础的试验和施工有关材料,以供去其糟粕,取其有益之处。 The use of local materials to build the foundation of black pavement, improve the quality of the project, reduce project cost, has been the focus of the road engineering department. According to Chairman Mao’s guideline “Foreign Matter for Secondary Use”, the editorial team of this journal collected some of the experimental and construction-related materials that used foreign materials such as broken gravel, gravel, sand, slag, reinforced soil, soft rock and other local materials as the foundation of black pavement. To go to its dregs, whichever benefit.