混凝土粉末浸液的电导率与混凝土的渗透性

万小梅; 赵铁军

doi:10.13204/j.gyjz200508020

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混凝土粉末浸液的电导率与混凝土的渗透性

doi: 10.13204/j.gyjz200508020

1.
青岛理工大学?土木工程学院?青岛?266033

基金项目:

国家自然科学基金项目(批准号:50378045)。

详细信息

作者简介:
万小梅,女,1974年12月出生,讲师

中图分类号: TU528
计量
- 文章访问数: 54
- HTML全文浏览量: 1
- PDF下载量: 26
- 被引次数: 0
出版历程
- 收稿日期: 2004-11-02
- 刊出日期: 2005-08-20

CONDUCTIVITY OF FILTERED CONCRETE POWDER SOLUTION AND PERMEABILITY OF CONCRETE

1.
School of Civil Engineering,Qingdao Technological University Qingdao 266033

摘要

摘要: 孔溶液的化学成分对混凝土电测渗透性有重要影响。理论分析和试验表明，混凝土粉末浸液的电导率与孔溶液的电导率有很好的相关性，重量比为3∶1的粉末浸液与孔溶液电导率的线性相关系数为0.8550。利用混凝土粉末浸液的电导率对混凝土的电测渗透性结果进行修正是可行的。
- 混凝土 /
- 渗透性 /
- 孔溶液 /
- 粉末水溶液 /
- 电导率
Abstract: The chemical composition of a pore solution has major effect on concrete permeability evaluated by electrical method.Analysis of test results shows that the conductivity of concrete pore solution and filtered mortar powder solution correlate well.When the ratio of powder to water is 3∶1,the correlation coefficient between the conductivity of the pore solution and the filtered mortar solution is 0855 0.Consequently,it is feasible to modify concrete permeability by the conductivity of a filtered concrete powder solution.
- concrete /
- permeability /
- pore solution /
- filtered concrete powder solution /
- electric conductivity

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参考文献(8)

ASTM C1202-91 Standard Test Method for Electrical Indication of Concretes Ability to Resist Chloride Ion Penetration;

[2] Hunkeler F.The Resistivity of Pore Water Solution--A Decisive Parameter of Rebar Corrosion and Repair Methods.Construction and Building Materials,1996,10(5):381～389;

[3] 赵铁军.高性能混凝土的渗透性研究:[博士学位论文].北京:清华大学土木系,1997;

[4] Wee T H,Suryavanshi A K,Tin S S.Evaluation of Rapid Chloride Permeability Test(RCPT) Result for Concrete Containing Mineral Admixtures.ACI Materials Journal,2000,97(2):221～232;

[5] Barneyback RS,Diamond S.Expression and Analysis of Pore Fluids from Hardened Cement Paste and Mortars.Cement and Concrete Research,1981(11):279～285;

[6] Duchesne J,Berube M A.Evaluation of the Validity of the Pore Solution Expression Method from Hardened Cement Pastes and Mortars.Cement and Concrete Research,1994,24(3):456～462;

[7] Haque M N,Kayyali O A.Free and Water Soluble Chloride in Concrete.Cement and Concrete Research,1995,25:531～542;

[8] 万小梅.用交流电测量混凝土的渗透性:[硕士学位论文].青岛:青岛建筑工程学院土木系,2002

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