【摘要】 针对传统力学指标的面板混凝土抗裂性能评价方法存在一定局限性的问题，提出了一种基于层次分析法(AHP)和熵值法的综合评价方法。通过掺入不同外加剂的面板混凝土的力学性能试验和温度—应力试验，得到面板混凝土的力学性能和抗裂指标，进而对比传统力学评价方法与AHP和熵值法的综合评价方法。研究结果表明：氧化镁膨胀剂和碳纳米管均能改善混凝土的抗裂性，氧化镁膨胀剂改善效果更显著。抗裂性能综合评价方法比考虑单一指标的传统力学评价方法更为合理和可靠。更多还原

【Abstract】 A comprehensive evaluation method based on an analytic hierarchy process(AHP) and an entropy method is proposed to overcome certain limitations of the traditional mechanical index-based evaluation method for the cracking resistance performance of face slab concrete. Through a mechanical properties test and a temperature-stress test of face slab concrete added with different admixtures, the mechanical properties and cracking resistance indexes of face slab concrete are obtained, and the traditional mechanical index-based evaluation method is compared with the comprehensive evaluation method based on the AHP and the entropy method. The results show that magnesium oxide expansion agent and carbon nanotubes can improve the cracking resistance performance of concrete, and the improvement effect of magnesium oxide expansion agent is more significant. The comprehensive evaluation method for the cracking resistance performance of concrete is more reasonable and reliable than the traditional mechanical index-based evaluation method considering a single index.更多还原