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莫斯科化工学院胶凝物质教研室研究了在20,0,-10和-20℃条件下,NaNo_2(亚硝酸钠)对多矿物水泥和单矿物C_3S,C_2S,C_3A和C~4AF的水化和硬化的影响.经测定:在标准温度和低温下,NaNo_2对水泥中四种矿物的作用有很大差别;NaNo_2缩短了水化感应期,加速在标准温度、零度和负温条件下C_3S的硬化速度,提高低温条件下C_3S的水化程度.在20℃下,掺入占矿物重量2%的
The Department of Gelid Materials of the Moscow School of Chemical Engineering studied the hydration and hardening of NaNo_2 (sodium nitrite) on multi-mineral cement and single minerals C_3S, C_2S, C_3A and C~4AF at 20, 0, -10 and -20°C. The effect of NaNO 2 on the four minerals in cement varies greatly at standard temperature and low temperature; NaNo_2 shortens the induction period of hydration and accelerates the hardening rate of C_3S at standard temperature, zero and negative temperatures. , increase the degree of hydration of C_3S under low temperature conditions. Incorporation of 2% of mineral weight at 20°C