【摘要】 混凝土试件的强度尺寸效应是普遍现象,对此,普通混凝土已有规范可依。而对近几年发展起来的轻骨料混凝土,其试件的强度尺寸效应有待于研究。对700、900级页岩陶粒轻骨料混凝土进行了研究。研究结果表明,对于轻骨料混凝土,其试件强度尺寸效应比普通混凝土明显,小试件对大试件的换算系数比相应普通混凝土低。更多还原

【Abstract】 The size effects of concrete are universal phenomena.The criterion of ordinary concrete dealing with size effect has been worked out.But the study of the size effect of lightweight aggregate concrete is not enough.The size effects of strength of shale grade of 700 and 900 lightweight aggregate concrete have been studied.The results show that the size effects of lightweight aggregate concrete of compressive strength is more obvious than that of ordinary concrete,and the conversion coefficients of strength from small samples to large samples are much lower than that of ordinary concrete.更多还原