【摘要】 室温饱和养护条件下,对粉煤灰掺量为50%、70%两组混凝土试件,养护时间分别为3、7、14d的早期强度(主要是立方体轴心抗压强度和无损检测回弹值)与含水率进行试验研究。对所得试验数据进行分析,研究了饱和大掺量粉煤灰混凝土早期强度与含水率的关系。研究发现,随养护时间推移,饱和大掺量粉煤灰混凝土早期强度随含水率的减少而增大。更多还原

【Abstract】 With room temperature and saturated curing conditions,the fly ash of 50%,70% concrete specimen,the 3,7,14 d early strength(mainly cubic axial compressive strength and rebound values) and moisture content were tested in laboratory.The relationship between early strength and moisture content were studied for the saturated large volume fly ash concrete with the experimental data.Obtained with the curing time goes on,the saturation of high volume fly ash concrete early strength increase with the reduction of moisture content.更多还原