Comprehensive Performance Evaluation of C150 Ultra High Performance Concrete based on Analytic Hierarchy Process
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/m3 of cement,200 kg/m3 of silica fume,100 kg/m3 of metakaolin,and 150 kg/m3 of fly ash.The research results have certain guiding significance for the mix design of C150 ultra-high performance concrete.
ultra high performance concreteanalytic hierarchy processinfluence weightorthogonal experimentcomprehensive evaluation
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