水泥混凝土路面是一种刚度大、扩散荷载能力强、稳定性好的路面结构。由于施工及养护等原因,水泥混凝土路面往往出现过早损坏,这种损坏很大程度上是由于水渗入到路面、路基中造成的。渗入到路面板下的水在重复荷载作用下,受到反复挤压、抽取,致使板块纵、横向接缝、板块边缘与路肩内侧结合部产生唧泥。随着唧泥的排出,水泥板块间逐步形成错台,板底脱空增大,最终导致板块破损。这些损坏开 Cement concrete pavement is a kind of pavement structure with large rigidity, strong diffusion load capacity and good stability. Due to construction and maintenance and other reasons, cement concrete pavement often premature damage, this damage is largely due to water infiltration into the road, resulting in subgrade. Under the action of repeated load, the water infiltrated into the pavement slab is repeatedly squeezed and extracted, resulting in the generation of mud at the joint between the longitudinal and transverse seams, the edge of the slab and the inner side of the shoulder. With the discharge of puddle mud, the cement slab gradually forms the wrong platform, and the void of the bottom of the slab increases, finally resulting in the plate being damaged. These are broken