粗骨料粒径对卵石混凝土抗压强度影响的试验研究  

Experimental research on the influence of coarse aggregate size on boulder concrete compressive strength

作　　者：李树山[1,2] 高丹盈[1] 

机构地区：[1]郑州大学新型建材与结构研究中心,河南郑州450002 [2]华北水利水电学院,河南郑州450045

出　　处：《混凝土》2013年第2期59-61,64,共4页Concrete

基　　金：郑州市科技领军人才计划项目(112PLJRC354)

摘　　要：通过54个150mm×150mm×150mm、18个200mm×200mm×200mm和72个150mm×150mm×300mm卵石混凝土试件的抗压强度试验,探讨了粗骨料粒径、水灰比和龄期对混凝土抗压强度的影响。试验结果表明:随着粗骨料最大粒径的增大,抗压强度随之降低;水灰比越小,混凝土抗压强度的粗骨料粒径效应越明显;龄期增加,混凝土抗压强度的骨料粒径效应无显著变化。Through three group experiments on 54 specimens with the dimensions 150 mm×l50 mm×150mm, 18 of 200 mm×200 mm×200 mm and 72 of 150 mmx 150 rnrnx300 mm respect, effected of coarse aggregate size, water cement ratio and ages on the concrete compressive strength were studied.The experiment results showed that the concrete compressive strength decreased with the increase of the maximum size of coarse aggregate, coarse aggregate size affected of concrete compressive strength were more apparent as the ratio of water-cement was decreased, with the increase of age concrete compressive strength of the aggregate size effect had no significant changes.

关 键 词：卵石混凝土 粗骨料 骨料粒径 抗压强度 

分 类 号：TU528.041[建筑科学—建筑技术科学]