利用DOE和紧密堆积理论优化UHPC设计  

Optimized design of UHPC based on DOE and MAA

作　　者：李火星 孔祥付 李伯川 胡建 LI Huoxing;KONG Xiangfu;LI Bochuan;HU Jian(DIT Group Limited,Changsha 410005,China)

机构地区：[1]筑友智造建设科技集团有限公司,湖南长沙410005

出　　处：《混凝土与水泥制品》2024年第3期1-6,共6页China Concrete and Cement Products

摘　　要：使用DOE设计理论,根据所选原材料的性能和产品工艺要求先设定基础参数和优化目标,再基于颗粒紧密堆积理论(MAA)得到标准预混料的配合比;然后利用全因子试验筛选重要因子并确定极值范围后进行响应面模型分析;最后输出得到符合使用要求的超高性能混凝土(UHPC)配合比。验证试验结果表明:优化配合比后,所配制的UHPC流动度和密实度预测值均在误差范围内,结果较可靠。Adopting DOE design theory,firstly,the basic parameters and optimization objectives were set according to the selected raw material properties and product process requirements.Then the mix proportion of standard premix was obtained based on the theory of compact accumulation of particles(MAA),and the response surface model analysis was carried out by using the full factorial test to screen the important factors and to determine the range of extremes,and the output was obtained to obtain the mix proportion of ultra-high performance concrete(UHPC)that meet the requirements for use.The verification test results show that the predicted values of flowability and compactness of UHPC prepared by optimizing the mix proportion are within the error range,and the results are relatively reliable.

关 键 词：配合比设计 Andreasen-Andersen模型 试验设计 响应面分析法 超高性能混凝土 

分 类 号：TU528.01[建筑科学—建筑技术科学]