摘要
设计了J型流动仪用来测定大流动性混凝土的工作性 ,并通过改变水胶比、砂率、粉煤灰掺量等配比参数 ,检验了J型流动仪的有效性和敏感性。试验结果表明 ,J型流动仪可以同时反映变形速度和变形量两个指标的变化 。
A new J\|type flow meter was designed to determine the workability of the high fluidity concrete.By changing the water\|cement ratio,the sand coarse aggregate ratio and the amount of the fly ash,the validity and sensitivity of this method were tested.According to the test results,the deformation rate and the deformation amount of the high fluidity concrete both can be shown by J\|type flow meter.In general this apparatus can be used in the determination of the workability of the high fluidity concrete.
出处
《工业建筑》
CSCD
北大核心
2003年第2期49-51,58,共4页
Industrial Construction
基金
国家自然科学基金项目 (编号 :5 99780 2 3 )
