摘要
通过试验和分析得出混凝土的强度和耐久性与其微观孔结构联系紧密。利用灰色关联理论得到混凝土孔结构特征参数与混凝土强度、耐久性的灰色关联度,分析了不同孔结构特征参数对混凝土强度、耐久性影响程度。结果表明:小于20 nm的孔径分布与混凝土力学性能关联度最大;100~200 nm孔径分布对混凝土耐久性有较大的影响。
By the test and analysis,it can conclude that the strength and durability of concrete are closely related to the micro pore structure.The grey relativity analysis is used to get the grey relational degree between the characteristic parameters of concrete pore structure and the strength and durability of concrete,and the influence degree of different pore structure characteristic parameters on the strength and durability of concrete is analyzed.The results show that the size distribution of less than 20 nm has the greatest correlation with the mechanical properties of concrete,and the pore size distribution of 100~200 nm has a greater influence on the durability of concrete.
引文
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