The effective non-steady state diffusivity of sulfate ingress from a mixed sulfatechloride solution into Type 50 cement concrete was determined from concentration profiles at various times up to five years. Furthermore, the influence of CO\* saturation on the effective diffusivity was determined. Th
A rapid test for sulfate ingress into concrete
โ Scribed by Peter J. Tumidajski; Ileana Turc
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 327 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0008-8846
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โฆ Synopsis
A rapid test, based on electrochemical polarization, is described for the ingress of sulfate into concrete. The influence of cement type, water/cement ratio and the presence of supplementary cementitious materials on the initial current delivered and total charge accumulated over six hours was investigated. The results correlate with the sulfate penetration depth determined from two year ponding experiments.
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