Assessment of Anhydrous Ethanol Extraction to Determine the Ionic Concentration of Hardened Cement Pastes

摘要：

A new method involving the extraction of various ions from hardened cement pastes by anhydrous ethanol is presented to determine the pH value and ionic concentration during the first 28 days. The volume content of pore solution extracted by ethanol in the leachate reached 12％ or above and the pH values calculated by alkali ions are more than 12, even up to 12.73. The results were compared with those from parallel,conventional pore water expression experiments. All of these comparisons verified the feasibility of the proposed method. However,the application of this method to pore solution analysis needs further improvement.

关键词： Pore solution Cement paste Leaching Ethanol

作者: Manjian Wu Wu Yao Wei Wang Yongqi Wei

作者单位: Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,Tongji University,1239 Siping Road,Shanghai 200092,China

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 506-509

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）