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一、减水剂性质与其在水泥混凝土中的作用 1.减水剂的表面张力及减水性能作者将收集到的资料,以纯水表面张力随温度变化的关系进行修正折算,得出在20℃时,浓度为1％的各种减水剂溶液的表面张力(达因/厘米)统计值(见表1)。表2为各种减水剂在
1. Properties of water-reducing agent and its role in cement concrete 1. Surface tension and water-reducing performance of water-reducing agent The authors collected the data and corrected the relationship between the surface tension of pure water and the change in temperature. At °C, the surface tension (dyne/cm) statistics for various water-reducing agent solutions at a concentration of 1% (see Table 1). Table 2 shows various water-reducing agents