随着我国国民经济的迅速发展,公路交通量日益增加,重型运输、超载运输比重越来越大,这对公路路面的结构强度和使用性能提出了更高的要求。而水泥混凝土路面则具有刚度大、强度高、稳定性好、抗滑、耐磨、养护与维修费用低等优点。因此近年来在重载交通的高等级公路设计中广泛应用。 With the rapid development of our country’s national economy, the traffic volume of highway is increasing day by day, and the proportion of heavy-duty transportation and over-load transportation is increasing. This puts forward higher requirements on the structural strength and service performance of highway pavement. The cement concrete pavement has a large stiffness, high strength, good stability, anti-skidding, wear-resistant, low maintenance and maintenance costs. In recent years, therefore, it has been widely used in the design of high-grade highways with heavy traffic.