基于正交试验的超高层高强混凝土配合比设计  

Mix proportion design of high-strength concrete for super high-rise building using orthogonal test method

作　　者：田洪斌 贾殊 陆斌 吴建奇[2] TIAN Hongbin;JIA Shu;LU Bin;WU Jianqi(Zhejiang City Construction Group Co.,Ltd.,Hangzhou 310012,China;School of Civil Engineering and Eurveying and Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341099,China)

机构地区：[1]浙江城建建设集团有限公司,浙江杭州310012 [2]江西理工大学土木与测绘工程学院,江西赣州341099

出　　处：《混凝土》2025年第1期173-177,共5页Concrete

基　　金：国家自然科学基金(51768024)。

摘　　要：结合工程所在地实际情况,针对水胶比、粉煤灰掺量和机制砂掺量3个因素,采用正交试验法对C60大体积混凝土抗压强度、最高温升值、离心率和泌水率等性能进行研究。并运用统计学手段对试验数据进行极差方差分析和F检验,得到了各因素对混凝土性能的影响规律和满足工程应用的最佳配合比,即水胶比0.3,粉煤灰掺量30%,机制砂掺量60%。试验结果还表明影响抗压强度的最显著因素是水胶比,影响最高温升值的最显著因素是水胶比和粉煤灰掺量,影响离析率和泌水率的最显著因素是机制砂掺量。Combining with the actual situation of the project location,aiming at the three factors of water-binder ratio,the content of fly ash and the content of manufactured sand,the orthogonal test is used to study compressive strength,maximum temperature,segregation rate and water bleeding rate of the C60 mass concrete.By means of statistical,the range analysis,variance analysis and F test were carried out to reveal the influence of various factors on concrete performance and the optimum mix proportion for engineering application,which is water-binder ratio 0.3,fly ash content 30%,and manufactured sand content 60%.The test results also show that what the most significant factor to compressive strength is water-binder ratio,what the most significant factor to maximum temperature is water-binder ratio and the content of fly ash,and what the most significant factor to segregation rate and water bleeding rate is the content of manufactured sand.

关 键 词：正交试验 配合比设计 抗压强度 最高温升值 离析率 泌水率 

分 类 号：TU528.062[建筑科学—建筑技术科学]