The effects of materials variables on chloride ion diffusion rates and their relevance to the corrosion of steel reinforced concrete
- Univ. of Windsor, Ontario (Canada)
- Jacques Whitford Ltd., Ottawa, Ontario (Canada). Materials Dept.
The corrosion of steel embedded in concrete is a well-known, world-wide phenomenon. Over the past 30 years, the chloride ion has been identified as the major agent associated with the depassivation, and consequent corrosion, of the embedded steel. One form of mass transfer associated with the movement of chloride ions in concrete is diffusion. In this study, chloride ion diffusion rates in cementitious paste have been determined using a modification to the ``standard`` diffusion cell. Ordinary Portland cement samples of varying water/cement ratios were investigated together with similar materials to which varying amounts of pyrolyzed scrap polymer had been added. The results from the present study are compared with previously published data and their relevance to the chloride-induced corrosion of embedded steel is discussed.
- OSTI ID:
- 80068
- Report Number(s):
- CONF-940222-; TRN: IM9532%%195
- Resource Relation:
- Conference: Corrosion 94: National Association of Corrosion Engineers (NACE) international annual conference, Baltimore, MD (United States), 28 Feb - 4 Mar 1994; Other Information: PBD: 1994; Related Information: Is Part Of Corrosion/94 conference papers; PB: 5005 p.
- Country of Publication:
- United States
- Language:
- English
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