粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2013N0.6 专题研究 基于SPSS回归分析的气孔结构对引气混凝士强度影响分析 Analysis of Impact of Pore Structure on Air-Entraining Concrete Strength Based on SPSS Regression Analysis 高辉，张雄，张永娟 (同济大学先进土木工程材料教育部重点实验室，上海201804) 摘要：为便于高性能混凝土引气剂的开发和应用，采用定量体视学图像分析法，测定掺有9种引气剂的混凝土28d 气孔结构参数（孔径范围10um~1600um) 运用统计分析程序SPSS对影响混凝土抗压强度比的分级孔隙率进行多元线 性回归，得到相关系数高达0.971的多元线性回归方程及各分级孔隙率对抗压强度比的影响权重. 关键词：气孔结构；抗压强度；线性回归分析 中图分类号：TU.528.042 文献标识码：A 文章编号：1005-8249(2013)06-0003-04 Gao Hui Zhang Xiong Zhang Yong-juan (Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education Tongji University Shanghai 201804 China) Abstract:To facilitate the development and application of air entraining agents AEA)in the high performance conerete pore structure pa- rameters pore size range of 10-1600um)of 28d concrete added with nine types of air entraining agents were measured by image analysis method. Meanwhile the relationship between the pore size distribution and the strength of concrete was studied by multiple linear regression analysis meth- ods.The multiple linear regression equation was established whose correlation coefficient was 0.971 and the weight of hierarchical porosity affect- ing the pressive strength ratio was also obtained. Key words:pore structure;pressive strength;linear regression analysis 英国人在1865年修建世界上第一条水泥混凝土中，研究较多的是总孔隙率对混凝土强度的影响.有 路面，至今已有146年历史.水泥混凝土路面具有强 很多强度与总孔隙率之间关系的半经验公式5-，例 度高、抗超载能力强、寿命长、磨损小、施工简单、环境 如：反映强度-孔隙率关系的幂函数关系式、指数关系 适应能力强、经济性好等优点，是高等级公路最主要的...
基于SPSS回归分析的气孔结构对引气混凝土强度影响分析.pdf
