摘要
系统地研究了新型高效混凝土负温泵送剂对新拌混凝土和硬化混凝土的影响。研究结果表明,新型高效混凝土负温泵送剂除了具有低负温稳定性好的特点外,还可以大幅度地提高混凝土的抗冻性,改善混凝土的抗渗性、抗氯离子渗透性和抗冻融循环性能。
The effects of new efficient pumping aid of negative temperature on fresh and hydrated concrete were systematically studied. Besides a good stability at negative temperature, new efficient pumping aid of negative temperature could also improve freeze resistance, carbonation resistance, freeze-thawing cycle resistance of tested concrete, and the permeability of both water and Cl^- of tested concrete were improved remarkably in comparison with reference concrete.
出处
《低温建筑技术》
2009年第4期11-14,共4页
Low Temperature Architecture Technology
关键词
负温泵送剂
抗冻性
抗渗性
抗冻融循环
pumping admixture of negative temperature
freeze resistance
permeability resistance
freeze-thawing cycles resistance
