夏季施工的混凝土路面早期裂缝,已成为道路工程质量的通病之一。究其原因是多方面的,主要是施工现场条件,包括拌合及铺筑场地的气温过高引起的。高温会促进水泥的水化作用,增加水分的蒸发量,容易使混凝土早凝而失去流动性,表面易干燥;同时,混凝土体内一部分水分被干燥的灰土基层所吸收,致使混凝土产生早期干缩裂缝,即 Early construction of concrete pavement in early cracks has become one of the common problems in road construction quality. The reasons are many, mainly due to the conditions of the construction site, including the high temperature of mixing and paving sites. High temperature will promote the hydration of cement, increase the evaporation of water, easy to make concrete early coagulation and loss of fluidity, the surface is easy to dry; the same time, part of the concrete body was dried lime soil base absorbed, resulting in concrete early shrinkage cracks ,which is