基于正交试验的混凝土电通量非线性预测模型  

Nonlinear prediction model for electric flus of concrete based on orthogonal experiment

作　　者：陈正[1] 杨绿峰 周明[1] 蔡荣[1] 徐飞[1] 文涛[1] 

机构地区：[1]广西大学土木建筑工程学院,工程防灾与结构安全教育部重点实验室,广西南宁530004 [2]广西壮族自治区住房和城乡建设厅,广西南宁530028

出　　处：《广西大学学报（自然科学版）》2013年第1期220-227,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51168003,51208120);广西自然科学基金项目(2011GXNSFB018013)和广西自然科学基金重大项目(2012GXNSFEA053002);教育部博士点基金资助项目(20124501120005);广西教育厅资助项目(201203YB002);广西大学科研基金资助项目(XBZ100460)

摘　　要：为分析多因素对混凝土抗氯离子性能的影响,基于正交试验设计和ASTM C1202试验方法对掺粉煤灰和矿渣的混凝土的抗氯离子渗透性能进行试验和分析,研究了不同水平下水胶比、粉煤灰掺量、矿渣掺量、砂率等试验因素对混凝土电通量的影响,并基于各试验因素与混凝土电通量的相关关系,研究建立了混凝土电通量非线性预测模型。研究结果表明,水胶比、粉煤灰掺量、矿渣掺量对混凝土电通量的影响较大,基于水胶比、粉煤灰掺量、矿渣掺量的混凝土电通量非线性预测模型的计算结果与试验值吻合较好,可以用于实际工程混凝土电通量的预测。The orthogonal and ASTM C1202 test methods were applied to the experiment of the anti- chloride ion permeability of concrete with fly ash and slag to analyze the effects of the design parame- ters of mix proportion on the anti-chloride ion permeability of concrete. The influence of different ex- perimental factors on the electric flux of concrete was studied, and the effect of different level of the factors on electric flux was analyzed. The nonlinear prediction model for the electric flux in relation with the research factors is given in this paper. The results indicate that the water/binder ratio, re- placement of fly ash, replacement of slag have great influence on the electric flux of concrete and the nonlinear calculation and predication model show good agreement with the experimental results.

关 键 词：混凝土 氯离子扩散 电通量 非线性预测模型 正交试验 

分 类 号：TU528.07[建筑科学—建筑技术科学]