高强混凝土坍落度和强度模型  

Slump model and strength model of high strength concrete

作　　者：焦楚杰[1] 张文华[1] 何娟[1] 

机构地区：[1]广州大学土木工程学院,广州510006

出　　处：《东南大学学报（自然科学版）》2010年第A02期144-149,共6页Journal of Southeast University：Natural Science Edition

基　　金：国家自然科学基金资助项目(50708022);广东省自然科学基金资助项目(06301038);建设部科研开发资助项目(06-K1-37;07-K4-5;07-K4-13;10-K3-27;10-K4-18);广州市属高校"羊城学者"科研资助项目(10A043G);广州大学科研创新团队资助项目

摘　　要：基于C50~C100的高强混凝土（HSC）制备试验,采用后退分析方法,对HSC的配合比及强度和坍落度数据进行多元回归分析.研究表明,水胶比是影响HSC强度和坍落度的最主要因素.在前述研究的基础上,建立了HSC的坍落度模型和强度模型,并通过试验进行验证发现,强度模型的理论计算值误差在10%左右,对于工程实践具有比较高的精度;坍落度模型误差偏大,可供定性参考.Based on the experiments of preparing C50 to C100 high strength concrete（HSC）,the mixture proportioning,slump and cubic compressive strength of HSC are studied by recession analysis method.The results show that the ratio of water to cementitious material is the most key factor to the cubic compressive strength and slump of HSC.By the multiple regression analysis method,the cubic compressive strength model and the slump model of HSC are put forward.The verification experiment shows that there is only about 10% error between the test data and the theoretical values of the cubic compressive model,which is relatively accurate in civil engineering practice;whereas the slump model has more error,which may be references to the production technique of HSC.

关 键 词：高强混凝土(HSC) 坍落度模型 强度模型 

分 类 号：TU528.572[建筑科学—建筑技术科学]