摘   要：针对目前路面水泥混凝土早期塑性开裂严重的现象，参考日本笠井芳夫教授提出的混凝土平板试件抗裂性试验方法，自行研制了试验模具，并研究了水胶比、水泥浆体积含量、粉煤灰掺量和减水剂掺量对路面混凝土早期塑性开裂的影响。结果表明，当混凝土的水胶比为0.38~0.40、水泥浆体积含量为26%及粉煤灰掺量为10%时，混凝土具有最高的抵抗早期塑性收缩开裂的能力，但该能力随高效减水剂掺量的增大而下降。Abstract: Aiming at the phenomenon of serious early plastic cracking of pavement concrete at present, based on the test method of crack resistance of concrete slab specimen proposed by Prof. Kasai of Japan, self-developed test mold was used to study the ratio of W/B, the volume content of cement slurry, the content of fly ash and the superplasticizer influence of volume on early plastic cracking of pavement concrete. The results show that the concrete has the highest resistance to early plastic shrinkage cracking when W/B of the concrete ranges from 0.38 to 0.40, the cement slurry volume content is 26%, and the fly ash content is 10%. The ability of the concrete to resist early plastic shrinkage and cracking is declining with increasing high-efficiency water-reducing agent content.