混凝土原材料及力学性能与氯离子扩散系数间的相关性试验研究

Correlation test between chloride diffusion coefficient and raw material and mechanical properties

开展矿物掺合料混凝土的抗氯离子渗透和立方体抗压强度试验,以分析研究原材料如水胶比、单位立方米水泥用量、胶凝材料用量以及立方体抗压强度与氯离子扩散系数间的相关性。试验结果表明:氯离子扩散系数随水胶比的增加而增加,随单位立方米水泥用量、胶凝材料用量和立方体抗压强度的增加而下降。氯离子扩散系数与水胶比、单位立方米水泥用量、胶凝材料和立方体抗压强度间均呈显著的非线性回归关系。

Cube crushing strength and resistance to chloride penetration of mineral admixture concrete was tested to analysis the regression relationship between chloride diffusion coefficient and raw material and mechanical properties.Test results showed that chloride diffusion coefficient increased with the increase of water-binding material ratio,decreased with the increase of cement amount per cubic meter,cementitious material amount per cubic meter and cube crushing strength.Chloride diffusion coefficient had a good nonlinear regression relationship with water-binding material ratio,cement amount per cubic meter,cementitious material amount per cubic meter and cube crushing strength.