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市政三、四公司和研究所对几种早强剂进行了一些试验,兹将试验结果和有关资料汇编如下,供施工参考。一、早强剂的种类和性能对下列六类早强剂进行了试验: (一) 三乙醇胺0.05％+硫酸钠1～3％; (二) 三乙醇胺0.05％+硫酸钠2％+亚硝酸钠1％; (三) 硫酸钠2％+亚硝酸钠1～4％; (四) 三乙醇胺0.05％+食盐0.5％;
The municipal 3rd and 4th companies and research institutes conducted some tests on several early strength agents. The test results and related data are compiled as follows for reference. I. Types and properties of early strength agents The following six types of early strength agents were tested: (a) Triethanolamine 0.05% + sodium sulphate 1-3%; (b) Triethanolamine 0.05% + sodium sulphate 2% + nitrous acid Sodium 1%; (C) Sodium sulfate 2% + sodium nitrite 1 ~ 4%; (D) Triethanolamine 0.05% + salt 0.5%;