辽宁省铁岭专区在建设○七○二四工程桥梁时,采用了中国科学院工程力学研究所研究成功的混凝土早强剂。使之缩短了混凝土的养护时间,加速了模板的周转、构件的起吊与安装工作,为大桥提前竣工创造了条件。这种混凝土早强剂的主要功效是在制备混凝土混合料的同时,按一定配合比,加入特定的有机和无机物质,以加速 In Tieling Prefecture, Liaoning Province, in the construction of the 7072 bridge, the concrete early strength agent was successfully used by the Institute of Engineering Mechanics, Chinese Academy of Sciences. This shortens the curing time of concrete, accelerates the turnover of the formwork, the lifting and installation of components, and creates conditions for the completion of the bridge in advance. The main effect of this type of concrete early strength agent is to add specific organic and inorganic substances to accelerate the preparation of the concrete mixture at a certain mixing ratio.