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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mccarthy, Michael John
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Mechanical processing of wet stored fly ash for use as a cement component in concrete
- 2022Impact of fly ash production and sourcing changes on chemical and physical aspects of concrete durabilitycitations
- 2022Influence of wet storage on fly ash reactivity and processing for use in concretecitations
- 2021Potential of Weathered Blast Furnace Slag for use as an Addition in Concretecitations
- 2019Pozzolanas and pozzolanic materialscitations
- 2017Evaluation of Fly Ash Reactivity Potential Using a Lime Consumption Testcitations
- 2015Influence of Portland cement characteristics on air-entrainment in fly ash concretecitations
- 2013Evaluating Test Methods for Rapidly Assessing Fly Ash Reactivity for Use in Concrete
- 2011Fly Ash Route to Low Embodied CO2 and Implications for Concrete Construction
- 2010Mechanisms of sulfate heave prevention in lime stabilized clays through pozzolanic additionscitations
- 2009Experiences of Processing Fly Ashes Recovered from United Kingdom Stockpiles and Lagoons, their Characteristics and Potential End Uses
- 2007Utilising Class F Fly Ash to Offset Non-ideal Aggregate Characteristics for Concrete in Chloride Environments
- 2004Comparative performance of chloride attenuating and corrosion inhibiting systems for reinforced concretecitations
- 2003Moving Fly Ash Utilisation in Concrete Forward
- 2001Specifying concrete for chloride environments using controlled permeability formworkcitations
Places of action
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article
Comparative performance of chloride attenuating and corrosion inhibiting systems for reinforced concrete
Abstract
<p>This paper reports a laboratory-based study carried out to compare the performance of various proprietary concrete protection systems, designed to reduce chloride ingress and reinforcement corrosion. These include: controlled permeability formwork (CPF), a silane/siloxane hydrophobic surface treatment (S/S), an integral liquid waterproofing admixture (WP) and a corrosion-inhibiting chemical admixture (CI). Tests were carried out on a Portland cement (PC) concrete (40 N/mm<sup>2</sup> design strength) for chloride diffusion index (using a two-cell compartment accelerated test) and, under cyclic wetting and drying conditions, total chloride content at cover depth (25 mm) and corrosion of carbon steel in reinforced concrete specimens (using half-cell potential and corrosion current density (polarisation resistance) measurements). The results indicate that for all protection systems, resistance to chloride ingress was improved, with the greatest benefits noted for the S/S and CPF concretes. Corrosion levels occurring for these generally followed the ranking of chloride ingress rates. The CI was found to reduce the rate of chloride ingress and to give lowest corrosion current densities in relation to chloride contents. This system appeared to provide best overall performance. The practical implications of the results are considered in terms of equivalence of the systems to an increase in design strength or cover depth, i.e. parameters used for specifying concrete durability in standards, and the wider issues relating to their selection and use are reviewed.</p>