Cheng Li, Wang Xiaoping, Huang Xuquan, Yu Qijun, Deng Chunlin, Wei Jiangxiong. INVESTIGATION ON FACTORS OF INFLUENCING THE EFFICIENCY OF ELECTROCHEMICAL CHLORIDE EXTRACTION BY ORTHOGONAL TEST METHOD[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(6): 73-75. doi: 10.13204/j.gyjz200706019
Citation:
Cheng Li, Wang Xiaoping, Huang Xuquan, Yu Qijun, Deng Chunlin, Wei Jiangxiong. INVESTIGATION ON FACTORS OF INFLUENCING THE EFFICIENCY OF ELECTROCHEMICAL CHLORIDE EXTRACTION BY ORTHOGONAL TEST METHOD[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(6): 73-75. doi: 10.13204/j.gyjz200706019
Cheng Li, Wang Xiaoping, Huang Xuquan, Yu Qijun, Deng Chunlin, Wei Jiangxiong. INVESTIGATION ON FACTORS OF INFLUENCING THE EFFICIENCY OF ELECTROCHEMICAL CHLORIDE EXTRACTION BY ORTHOGONAL TEST METHOD[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(6): 73-75. doi: 10.13204/j.gyjz200706019
Citation:
Cheng Li, Wang Xiaoping, Huang Xuquan, Yu Qijun, Deng Chunlin, Wei Jiangxiong. INVESTIGATION ON FACTORS OF INFLUENCING THE EFFICIENCY OF ELECTROCHEMICAL CHLORIDE EXTRACTION BY ORTHOGONAL TEST METHOD[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(6): 73-75. doi: 10.13204/j.gyjz200706019
1 Jingchu University of Technology Jingmen 448000;
2.
2 Key Lab.of Specially Functional Materials and Advanced Manufacturing Technology of Ministry of Edu.,South China University of Technology Guangzhou 510640
The primary and secondary factors of influencing the efficiency of electrochemical chloride extraction(ECE) were investigated by orthogonal test method,the results show that current density has the largest effect,the second is the type of electrolytes and water to cement ratio of concrete,initial chloride content has the least effect.Mercury intrusion porosimetry analysis for the samples ECE-treated and untreated ones were performed,for the ECE-treated samples porosity less than 30nm near rebar increased and that far from rebar decreased.When an electrolyte composed of 0.001 mol/L Li2B4O7 and saturated Ca(OH)2 solution and electrical current density of 3 A/m2 were adopted,the best desalination efficiency can be achieved.
[3] Michael Siegwart,Lyness John F,McFarland Brian J.Change of Pore Size inConcrete due to Electrochemical Chloride Extraction and Possible Implications for the Migration of Ions.Cement and Concrete Research,2003,33:1 211-1 221
[4] Banfill P F G.Re-Alkalisation of Carbonated Concrete Effect on Concrete Properties.Constr.Build.Mater,1997,11(4):255-258
Login
Register
E-alert
DownLoad: