本文针对地下混凝土结构刚性自防水工程的问题,讨论了导致混凝土收缩开裂的诸多原因,对膨胀剂、有机防水剂和抗裂防水剂的作用进行了探讨,结合部分实验对现行《混凝土膨胀剂》《砂浆、混凝土防水剂》的部分指标进行了探讨。 In this paper, aiming at the problem of rigid self-waterproofing of underground concrete structures, the causes of shrinkage and cracking caused by concrete are discussed. The effects of expansive agents, organic waterproofing agents and anti-cracking and waterproofing agents are discussed. Combined with some experiments, Some indexes of “mortar and concrete waterproofing agent” are discussed.