行业资讯
沥青混凝土公路和水泥混凝土公路的优缺点有哪些？
来源：/ 日期：2023-09-03
沥青路面属于柔性路面，行车舒适，噪音小；水泥混凝土路面是刚性路面，两者行车的感觉类似在铺了地毯的路上走和在水泥地上走，水泥混凝土路面没有沥青路面舒适，而且水泥混凝土路面必须4～5米设置伸缩缝，也影响行车舒适度。
Asphalt pavement belongs to flexible pavement, which is comfortable to drive and has low noise; Cement concrete pavement is a rigid pavement, and the feeling of driving on both roads is similar to walking on carpeted roads and cement ground. Cement concrete pavement is not as comfortable as asphalt pavement, and expansion joints must be set at 4-5 meters on cement concrete pavement, which also affects driving comfort.
沥青路面施工完毕到开放交通时间段，一般摊铺完几个小时多就可以通车了，而水泥混凝土路面需要较长时间的养生（期间还得喷水养护）才能达到通车强度，这个区别对于工期要求紧尤其是已通车项目断道维修的情况，沥青路面是秒杀水泥混凝土路面。
During the period from the completion of asphalt pavement construction to the opening of traffic, it is generally only a few hours of paving and can be opened to traffic for a maximum of one day. However, cement concrete pavement requires a long period of curing (including water spraying curing) to achieve its opening strength. This difference has strict requirements for the construction period, especially for the maintenance of broken roads in projects that have already been opened to traffic. Asphalt pavement is a flash kill cement concrete pavement.
沥青混凝土出现局部破损后修复相对比较容易，也比较快，影响交通时间短；水泥混凝土因为强度高，局部破损后凿除不易，重铺又要多天养生，比较麻烦。
After local damage occurs to asphalt concrete, it is relatively easy and fast to repair, which affects traffic for a short time; Cement concrete, due to its high strength, is difficult to remove after local damage, and it requires multiple days of curing after re laying, which is quite troublesome.
目前的上，两者相差较小。5理论上说，水泥混凝土的耐用性强于沥青，在设计计算的时候，高速公路水泥混凝土路面的使用年限是按30年计算，同等级的沥青混凝土路面是按15年计算。但是由于我国目前施工水平，尤其是水泥混凝土接缝处理超重车等因素，水泥混凝土路面似乎并没有显示出优势，反而在大面积损坏后，维修不易的矛盾比较突出，所以目前损坏严重的水泥混凝土路段基本都是以“白改黑”（即上面重新铺一层沥青混凝土路面）来进行大修。
At present, the price difference between the two is relatively small. In theory, the durability of cement concrete is stronger than that of asphalt. When designing and calculating, the service life of cement concrete pavement on highways is calculated as 30 years, while asphalt concrete pavement of the same grade is calculated as 15 years. However, due to the current construction level in our country, especially factors such as the treatment of overweight vehicles with cement concrete joints, cement concrete pavement does not seem to have shown any advantages. On the contrary, the contradiction of difficult maintenance after extensive damage is more prominent. Therefore, the severely damaged cement concrete road sections are basically undergoing major repairs with a "white to black" approach (i.e. a new layer of asphalt concrete pavement is laid on top).
沥青混凝土路面表面较粗糙，抗滑能力较平整的水泥混凝土路面强，在雨天汽车不易打滑，刹车距离也相对较短。6耐侯性上，水泥混凝土路面优势比较明显，沥青高温软低温脆的特性使得沥青混凝土路面在极端气候条件下没有水泥混凝土耐操，不过随着相关改性沥青的研究，对沥青高温稳定性和低温抗裂性都有很大改善。
The surface of asphalt concrete pavement is relatively rough, and the anti-skid ability of cement concrete pavement is stronger. In rainy days, cars are less likely to slip, and the braking distance is relatively short. In terms of weather resistance, cement concrete pavement has obvious advantages. The high temperature, soft, and low temperature brittleness of asphalt makes it less durable than cement concrete under extreme weather conditions. However, with the research on modified asphalt, there has been a significant improvement in the high-temperature stability and low-temperature crack resistance of asphalt.
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