STUDY ON HIGH PERFORMANCE GROUTS'RESISTANCE TO CHLORIDE ION EROSION

Gu Kunpeng; Wang Chengqi; Shi Beiling

doi:10.13204/j.gyjz200808016

Volume 38 Issue 8

Dec. 2014

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Gu Kunpeng, Wang Chengqi, Shi Beiling. STUDY ON HIGH PERFORMANCE GROUTS'RESISTANCE TO CHLORIDE ION EROSION[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(8): 59-62,98. doi: 10.13204/j.gyjz200808016

Citation:

Gu Kunpeng, Wang Chengqi, Shi Beiling. STUDY ON HIGH PERFORMANCE GROUTS'RESISTANCE TO CHLORIDE ION EROSION[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(8): 59-62,98. doi: 10.13204/j.gyjz200808016

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STUDY ON HIGH PERFORMANCE GROUTS'RESISTANCE TO CHLORIDE ION EROSION

doi: 10.13204/j.gyjz200808016

1.
CCCC Shanghai Harbour Engineering Design &Research Institute Co.,Ltd.Shanghai 200032

Received Date: 2007-06-23
Publish Date: 2008-08-20

Abstract

Abstract

The influence of water-cement ratio on performance of grouts is studied,the mechanism of admixture to improve performance of grouts are analysed and the grouts'resistance to chloride ion erosion is studied by total chloride ion content,electric charge and chloride ion diffusion coefficient.The results show that high performance grouts with zero bleeding,no shrinking,high flowability,high ability to resist chloride ion penetration and low water-cement ratio(0.27～0.30) are developed;the direct ratio relationship between electric charge and chloride ion diffusion coefficient is induced according to Nernst-Einstein equation.Electric charge can be reduced and grouts' ability to resist chloride ion penetration can be improved largely by reducing water-cement ratio.
- high performance grouts,
- chloride ion content,
- electric charge,
- chloride ion diffusion coefficient,
- water-cement ratio

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References(10)

References

[2] ASTM C939-97,Standard Test Method for Flow of Grouts for Preplaced-Aggregate Concrete (Flow Cone Method)

Grouting Specifications Committee.Post Tensioning Grouts Specifications.America:Grouting Specifications Committee,2002

[3] ASTM C940-98a,Standard Test Method for Expansion and Bleeding of Freshly Mixed Grouts for Preplaced-Aggregate Concrete in the Laboratory

[4] ASTM C1090-96,Standard Test Method for Measuring Changes in Height of Cylindrical Specimens from Hydraulic-Cement Grouts

[5] ASTM C1202-97,Standard Test Method for Electrical Indication of Concrete's Ability to Resist Chloride Ion Penetration

[6] PTI Committee on Grouting Specifications.Guide Specification for Grouting of Post-Tensioned Structures.America:Post-Tensioning Institute,2003

[7] Florida Department of Transportation.FDOT Standard Specifications.America:Florida Department of Transportation,2002

[8] Ramaehandran V S,Feldman R F,Beaudoin J J.Micrestructure of Cement Poster.Concrete Science,1981,1-3

[9] 路新瀛.Nernst-Einstein方程在混凝土中的应用.1996年度攀登B研究报告.清华大学土木工程系,1996

[10] 李翠玲,路新瀛,张海霞.确定氯离子在水泥基材料中扩散系数的快速试验方法.工业建筑,1998,28(6):41-43

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