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在城市的条件下沥青混凝土路面不能满足现代城市中的交通运输,因为夏季时期路面发生波纹与塑性流,而冬季时期又形成裂缝。这些形变严重地恶化了沥青混凝土路面的使用质量,同时也大大地缩短了它的使用期限。随着城市发展的远景,更重型的车辆(运输工具)和交通密度继续增加,沥青混凝土的使用期限,无疑地还会更短。因此,大规模的建筑水泥混凝土路面,在技术经济方面是更为合理的。因为它有着高的使用品质,使得它在修建城市道路的行事部分时有广泛采用的可能性。水泥混凝土路面的特点是:1、表面磨耗少;2、没有灰麈,易于清扫;3、抵抗汽油和润滑油的侵蚀作用强;4、不透水;5、路面不会形成波纹。水泥混凝土路面的这些优点使得它在国外很多城市中(巴黎、纽约、渥太华等) 获得广泛的应用。目前苏联对于广泛地采用水泥混凝土路面已创造了
In urban conditions, asphalt pavements can not satisfy the transportation in modern cities because ripples and plastic flow occur in pavement in summer and cracks in winter. These deformations severely deteriorate the quality of use of the asphalt pavement and at the same time greatly shorten its useful life. As the vision of urban development, heavier vehicles (vehicles) and traffic density continue to increase, the useful life of asphalt concrete will undoubtedly be even shorter. Therefore, large-scale construction of cement concrete pavement, the technical and economic aspects is more reasonable. Because of its high quality of use, it has the potential to be used extensively in the operation of urban roads. Cement concrete pavement is characterized by: 1, less surface abrasion; 2, no ash, easy to clean; 3, resistance to gasoline and lubricating oil erosion; 4, impermeable; 5, the road will not form ripples. These advantages of cement concrete pavement make it widely used in many cities abroad (Paris, New York, Ottawa, etc.). Currently the Soviet Union has created for the widespread use of cement concrete pavements