关键词: 低温;硫酸盐侵蚀;破坏模型;抗折强度

Abstract: The effects of temperature on the rate of sulfate attack were established by studying the sulfate attack of OPC and SRC cement mortars in low temperatures .OPC and SRC cement mortars was immersed in 3％sodium sulfate solutions at different temperatures , the trends in the flexural strength was used to evaluate the rate of sulfate attack in low temperature .The results show that the corrosion of sulfate cement mortar is increasing with the decrease of temperature .The decrease rate of flexural strength decreases with the decrease of temperature , and the decrease of water-cement ratio can improve the resistance of cement mortar to sulfate .

Key words: low temperature;sulfate attack;destruction model;flexural strength