蒸养混凝土早期强度影响因素研究

Effect of Forepart Strength of Cured-concrete

研究了在蒸汽养护条件下,粗细集料对混凝土早期强度的影响.试验结果表明:对C60塑性蒸养混凝土而言,当水灰比一定时,混凝土强度随砂率的增加而增加;混凝土强度一般随细集料细度模数的增加而增加;当砂率一定时,混凝土强度随粗集料最大粒径的减小而增加.

The effect of the coarse and fine aggregate on initial mechanical properties of concrete in the steam curing is studied.The results indicate that： when the W/C is constant,the strength of C60 plastic steam-cured concrete increase with the increase of the sand rate;the strength of concrete in general increase with the increment of the reasonable modulus fineness of fine aggregate.When the sand ratio is kept constant,the strength of concrete increases in inverse proportion to the maximal size of coarse aggregate.