高强轻骨料陶粒混凝土配合比及强度影响因素试验研究  

Mechanical Properties of Lightweight Concrete under Mix Proportion and Strength Factors

作　　者：刘喜[1] 吕贝贝[1] 刘全威[1] 吴涛[1] 

机构地区：[1]长安大学建筑工程学院,西安710061

出　　处：《硅酸盐通报》2014年第4期847-852,共6页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金项目资助(51078037);陕西省自然科学基金项目资助(2012JM7011);长安大学创新团队资助项目(2013G3282015)

摘　　要：本文使用国产陶粒为轻骨料,通过掺入活性矿物掺合料(粉煤灰)与高效减水剂复掺技术,采用"绝对体积法"设计了三种陶粒混凝土的配合比,完成了27组243个100 mm×100 mm×100 mm立方体轻骨料陶粒混凝土试块立方体抗压强度试验,并对所用骨料物理力学性能进行了研究。同时,通过系统试验,研究了骨料强度、水胶比、粉煤灰掺入量等因素对陶粒混凝土强度的影响。最终得到了陶粒混凝土的最佳配合比方案,为轻骨料混凝土的应用提供理论依据。By choosing domestic ceramsite as lightweight aggregate, mixing with active mineral admixture （fly ash） and the water reducing agent , and adopting the method of absolute volume to design the three kinds of ceramsite concrete mixture ratio, 27 groups, 243 lightweight aggregate ceramsite concrete test cubes of 100 mm × 100 mm × 100 mm are obtained for compressive strength test, and the physical and mechanical properties of the aggregate are studied. At the same time, through the systematic test, the influences of the aggregate strength, water-binder ratio, fly-ash content, etc on the strength of ceramsite concrete are studied. Finally the best mixture ratio scheme for ceramsite concrete is gained, providing theoretical basis for the application of lightweight aggregate concrete.

关 键 词：轻骨料混凝土 陶粒 水胶比 粉煤灰掺量 抗压强度 

分 类 号：TU528[建筑科学—建筑技术科学]