负温砼早期变形的试验研究

Experimental research on early stage deformation of negative temperature concrete

对国内外关于砼早期受冻研究方法进行了研讨，提出采取变形研究检早期受冻，试验结果表明：水灰比、早期强度对变形影响较大，冻融曲线走向、残余变形特征反应了砼早期结构的转折．

This paper discusses the researching method about concrete frozen early stage at home and abroad and puts forward the method researching concrete is frozen early stage by frost heaving deformation of negative temperature concrete. Experimental results state clearly that the influence of the ratio of water and cement on the deformation greatly, and the trend of freeze-thaw curve and the trait of remaining deformation response the turning of early stage structure of concrete.