Factors affecting threshold chloride for reinforcement corrosion in concrete

S. E. Hussain; Rasheeduzzafar; A. Al-Musallam; A. S. Al-Gahtani

doi:10.1016/0008-8846(95)00148-6

Factors affecting threshold chloride for reinforcement corrosion in concrete

S. E. Hussain^*
, Rasheeduzzafar
, A. Al-Musallam
, A. S. Al-Gahtani

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

172 Scopus citations

Abstract

Three cements with variable C₃A contents were mixed with different levels of chloride, alkali and sulfate contents to study the effect of these parameters on pore solution composition. Effect of exposure temperature was also studied by curing the chloride-treated specimens at 20 ° and 70 °C. Pore solution was extracted using a high pressure pore solution extrusion device and analysed for chloride and hydroxyl ion concentrations. Threshold chloride for onset of reinforcement corrosion was computed using threshold [ Cl^- OH^-] ratio of 0.3. The results showed that C₃A content and exposure temperature have very strong influence on threshold chloride content. Alkali content of cement has marginal effect whereas presence of sulfates along with chlorides has moderate effect on the threshold chloride content.

Original language	English
Pages (from-to)	1543-1555
Number of pages	13
Journal	Cement and Concrete Research
Volume	25
Issue number	7
DOIs	https://doi.org/10.1016/0008-8846(95)00148-6
State	Published - Oct 1995

ASJC Scopus subject areas

Building and Construction
General Materials Science

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title = "Factors affecting threshold chloride for reinforcement corrosion in concrete",

abstract = "Three cements with variable C3A contents were mixed with different levels of chloride, alkali and sulfate contents to study the effect of these parameters on pore solution composition. Effect of exposure temperature was also studied by curing the chloride-treated specimens at 20 ° and 70 °C. Pore solution was extracted using a high pressure pore solution extrusion device and analysed for chloride and hydroxyl ion concentrations. Threshold chloride for onset of reinforcement corrosion was computed using threshold [ Cl- OH-] ratio of 0.3. The results showed that C3A content and exposure temperature have very strong influence on threshold chloride content. Alkali content of cement has marginal effect whereas presence of sulfates along with chlorides has moderate effect on the threshold chloride content.",

author = "Hussain, \{S. E.\} and Rasheeduzzafar and A. Al-Musallam and Al-Gahtani, \{A. S.\}",

year = "1995",

month = oct,

doi = "10.1016/0008-8846(95)00148-6",

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TY - JOUR

T1 - Factors affecting threshold chloride for reinforcement corrosion in concrete

AU - Hussain, S. E.

AU - Rasheeduzzafar,

AU - Al-Musallam, A.

AU - Al-Gahtani, A. S.

PY - 1995/10

Y1 - 1995/10

N2 - Three cements with variable C3A contents were mixed with different levels of chloride, alkali and sulfate contents to study the effect of these parameters on pore solution composition. Effect of exposure temperature was also studied by curing the chloride-treated specimens at 20 ° and 70 °C. Pore solution was extracted using a high pressure pore solution extrusion device and analysed for chloride and hydroxyl ion concentrations. Threshold chloride for onset of reinforcement corrosion was computed using threshold [ Cl- OH-] ratio of 0.3. The results showed that C3A content and exposure temperature have very strong influence on threshold chloride content. Alkali content of cement has marginal effect whereas presence of sulfates along with chlorides has moderate effect on the threshold chloride content.

AB - Three cements with variable C3A contents were mixed with different levels of chloride, alkali and sulfate contents to study the effect of these parameters on pore solution composition. Effect of exposure temperature was also studied by curing the chloride-treated specimens at 20 ° and 70 °C. Pore solution was extracted using a high pressure pore solution extrusion device and analysed for chloride and hydroxyl ion concentrations. Threshold chloride for onset of reinforcement corrosion was computed using threshold [ Cl- OH-] ratio of 0.3. The results showed that C3A content and exposure temperature have very strong influence on threshold chloride content. Alkali content of cement has marginal effect whereas presence of sulfates along with chlorides has moderate effect on the threshold chloride content.

UR - https://www.scopus.com/pages/publications/0029391855

U2 - 10.1016/0008-8846(95)00148-6

DO - 10.1016/0008-8846(95)00148-6

M3 - Article

AN - SCOPUS:0029391855

SN - 0008-8846

VL - 25

SP - 1543

EP - 1555

JO - Cement and Concrete Research

JF - Cement and Concrete Research

IS - 7

ER -

Factors affecting threshold chloride for reinforcement corrosion in concrete

Abstract

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