一、概述作为混凝土外加剂的加气剂,很早就有人在水利工程上推广,近年来又传入了苏联先进经验——塑化剂。工业部门使用较普遍,水利系统中亦已先后在大伙房水库、新洋港水闸等工程上使用。1956年国家建委颁发节约水泥措施的指示中亦提到要大力推广混凝 First, an overview As a concrete admixture air entrainer, some people have long been on the promotion of water conservancy projects, in recent years has introduced the advanced Soviet experience - Plasticizer. The use of industrial sectors is more common. The water conservancy system has also been used on projects such as Dahuofang Reservoir and Xin Yang Gang Sluice. In 1956 the State Construction Construction Commission issued a measure to save cement also mentioned in the instructions to vigorously promote coagulation