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由陕西省建筑科学研究所研制,铜川市化工厂生产的WL混凝土复合早强剂,已于1986年10月通过由陕西省建筑工程总公司和铜川市标准计量局组织的技术及产品鉴定。这种混凝土复合早强剂是以硫酸盐和工业废料为主要成分的粘状外加剂,掺量为水泥重量的1.5—3%,能使混凝土1、3、7、28天抗压强度分别提高约60、40、20和10%,蒸汽养
Developed by the Shaanxi Provincial Institute of Building Research, the WL concrete composite early strength agent produced by the Tongchuan Chemical Plant was approved in October 1986 by the Shaanxi Provincial Construction Engineering Corporation and the Tongchuan Municipal Bureau of Standards and Metrology. The concrete composite early strength agent is a viscous admixture mainly composed of sulfate and industrial waste, and the content is 1.5-3% of the cement weight, which can improve the compressive strength of the concrete in 1, 3, 7 and 28 days respectively. About 60, 40, 20, and 10%, steam