上海市建筑科学究研所和上海市硅酸盐制品厂,自力更生,土法上马,试制出711型水泥速凝剂。水泥速凝剂是配合矿山井巷、隧洞等地下工程采用的喷射混凝土新技术的一种有效的水泥外加剂。据有关资料介绍在一般的混凝土浇捣工程中,为了解决滑动模板的快速施工或加快模板的周期,也可以掺入适量的水泥速凝剂。 The Shanghai Institute of Building Science and the Shanghai Silicate Product Factory, self-reliant and indigenous methods, trial-produced a Type 711 cement accelerator. Cement quick-setting agent is an effective cement admixture with the new technology of shotcrete used in mine tunnels, tunnels and other underground projects. According to the relevant information, in the general concrete pouring project, in order to solve the problem of rapid construction of the sliding formwork or to speed up the cycle of the formwork, an appropriate amount of cement quick-setting agent may also be incorporated.