Performance of generic and proprietary corrosion inhibitors in chloride-contaminated silica fume cement concrete

Mohamed Al-Mehthel, Salah Al-Dulaijan, Saleh H. Al-Idi, Mohammed Shameem, M. R. Ali, Mohammed Maslehuddin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

This paper presents the results of a study conducted to evaluate the improvement in corrosion-resistance of chloride-contaminated silica fume cement concrete due to the use of corrosion inhibitors. Three proprietary and one generic corrosion inhibitors were evaluated for their performance in inhibiting reinforcement corrosion in the silica fume cement concrete specimens contaminated with 0.4%, 1%, and 2% chloride concentration, by weight of cement. Some of the specimens were subjected to wetting and drying cycles and reinforcement corrosion was monitored by measuring corrosion potentials and corrosion current density. Another batch of concrete specimens was partially immersed in the chloride solution and reinforcement corrosion was accelerated by impressing an anodic potential of 2 V. The extent of corrosion increased with increasing chloride contamination in the concrete specimens. Incorporation of inhibitor generally decreased the rate of reinforcement corrosion. The rate of reinforcement corrosion in the concrete specimens incorporating an organic inhibitor that was added to the concrete during mixing was the least followed by that in the concrete specimens on which a penetrating corrosion inhibitor was applied. Further, the accelerated impressed current technique was noted to be suitable for quickly screening the performance of corrosion inhibitors.

Original languageEnglish
Pages (from-to)1768-1774
Number of pages7
JournalConstruction and Building Materials
Volume23
Issue number5
DOIs
StatePublished - May 2009

Bibliographical note

Funding Information:
The data presented in this paper are part of a research study that was sponsored by Saudi Aramco and conducted at King Fahd University of Petroleum and Minerals, Dhahran Saudi Arabia. The support provided by these organizations is acknowledged.

Keywords

  • Chloride contamination
  • Corrosion inhibitors
  • Reinforcement corrosion
  • Silica fume cement concrete

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science

Fingerprint

Dive into the research topics of 'Performance of generic and proprietary corrosion inhibitors in chloride-contaminated silica fume cement concrete'. Together they form a unique fingerprint.

Cite this