Journal ArticleDOI
An effective diffusivity for sulfate transport into concrete
TLDR
In this article, the effective non-steady state diffusivity of sulfate ingress from a mixed sulfate-chloride solution into Type 50 cement concrete was determined from concentration profiles at various times up to five years.About:
This article is published in Cement and Concrete Research.The article was published on 1995-08-01. It has received 42 citations till now. The article focuses on the topics: Sulfate transport.read more
Citations
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Journal ArticleDOI
Durability of metakaolin concrete to sulfate attack
TL;DR: In this paper, the effect of metakaolin replacement of cement on the durability of concrete to sulfate attack was investigated by measuring expansion of concrete prisms, compressive strength reduction, and visual inspection of concrete specimens to cracks.
Journal ArticleDOI
Modeling of Damage in Cement-Based Materials Subjected to External Sulfate Attack. II: Comparison with Experiments
Raphaël Tixier,Barzin Mobasher +1 more
TL;DR: In this article, a diffusion equation with a term for a second-order chemical reaction is proposed to determine the sulfate concentration and calcium aluminate profile as a function of time and space.
Journal ArticleDOI
Effect of sulfate and carbon dioxide on chloride diffusivity
Peter J. Tumidajski,G.W. Chan +1 more
TL;DR: In this article, the effects of sulfate and CO 2 on chloride penetration and diffusivities were determined at 60 months exposure for ordinary Portland cement concrete and concrete incorporating the partial replacement of the cement with slag.
Journal ArticleDOI
Analysis of concrete in a vertical ventilation shaft exposed to sulfate-containing groundwater for 45 years
Andreas Leemann,Roman Loser +1 more
TL;DR: In this paper, the concrete lining of a vertical ventilation shaft exposed to sulfate-bearing groundwater for 45 years was investigated, and optical and electron microscopy were used to assess the degree of damage and alteration of the concrete.
Journal ArticleDOI
Deterioration of pastes exposed to leaching, external sulfate attack and the dual actions
TL;DR: In this article, the degradation of concrete exposed to leaching, external sulfate attack and dual actions was investigated. And the most serious damage was observed on the specimens exposed to the (NH 4 ) 2 SO 4 solution with dually corrosive actions, whereas the addition of a suitable quantity of fly ash could retard the degradation rates of pastes under leaching and/or sulfate attacks to some extent.
References
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Book
The mathematics of diffusion
TL;DR: Though it incorporates much new material, this new edition preserves the general character of the book in providing a collection of solutions of the equations of diffusion and describing how these solutions may be obtained.
Journal ArticleDOI
Prediction of long-term chloride concentration in concrete
Pal Mangat,B. T. Molloy +1 more
TL;DR: In this article, the authors present a wide range of experimental data of the authors and other researchers on acid-soluble chloride diffusion in different mixes of concrete, and show conclusively that the chloride diffusion coefficient Dc is strongly dependent on the period of exposure of concrete to a chloride environment.
Journal ArticleDOI
The mechanism and rate of attack of sodium sulphate solution on cement and cement/pfa pastes
J. G. Cabrera,C. Plowman +1 more
TL;DR: In this paper, a study of the mechanisms and rates of attack of a sodium sulphate solution on four ordinary Portland cement (OPC) pastes and four OPC/pfa pastes is presented.
Related Papers (5)
Modeling of damage in cement-based materials subjected to external sulfate attack. I: Formulation
Raphaël Tixier,Barzin Mobasher +1 more