基于层次分析法分析的C150超高性能混凝土综合性能评价  

Comprehensive Performance Evaluation of C150 Ultra High Performance Concrete based on Analytic Hierarchy Process

作　　者：周立红 侯鑫鑫 王硕 ZHOU Lihong;HOU Xinxin;WANG Shuo(China Railway Construction Materials Industry Technology Co.,Ltd.,Luoyang,471000,China)

机构地区：[1]中铁建物产科技有限公司,河南洛阳471000

出　　处：《粉煤灰综合利用》2024年第3期35-39,共5页Fly Ash Comprehensive Utilization

摘　　要：以C150超高性能混凝土配合比为例,通过设计正交试验,并使用AHP层次分析法,同时设置权重获得各因素对C150综合性能影响大小,研究了配合比中主要胶凝材料掺量对其抗压强度、流动性能及水化放热量3项性能综合指标的影响。结果表明:对C150超高性能混凝土综合性能影响程度依次为粉煤灰(0.35)>偏高岭土(0.29)>硅灰(0.20)>水泥(0.17),最佳配合比为水泥用量700 kg/m^(3)、硅灰用量200 kg/m^(3)、偏高岭土用量100 kg/m^(3)、粉煤灰用量150 kg/m^(3)。研究成果对于C150超高性能混凝土配合比设计具有一定指导意义。Taking the mix proportion of C150 ultra-high performance concrete as an example,the influence of various factors on the comprehensive performance of C150 was obtained by designing orthogonal experiments and using the Analytic Hierarchy Process(AHP)with weights set.The influence of the main cementitious materials added in the mix proportion on the comprehensive indicators of its compressive strength,flow performance,and hydration heat release was studied.Research has shown that the comprehensive performance of C150 ultra-high performance concrete is affected by fly ash(0.35),metakaolin(0.29),silica fume(0.20),and cement(0.17)in the following order.The optimal mix ratio is 700 kg/m^(3) of cement,200 kg/m^(3) of silica fume,100 kg/m^(3) of metakaolin,and 150 kg/m^(3) of fly ash.The research results have certain guiding significance for the mix design of C150 ultra-high performance concrete.

关 键 词：超高性能混凝土 层次分析法 影响权重 正交试验 综合评价 

分 类 号：TU528[建筑科学—建筑技术科学]