1 Chemical resistance of epoxy and polyester polymer concrete to acids and salts M.C.S. Ribeiro, C.M.L. Tavares, A. J.M. Ferreira Instituto de Engenharia Mecânica e Gestão Industrial Faculdade de Engenharia da Universidade do Porto Rua do Barroco, 174-214 4465-591 Leça do Balio Abstract The aim of this work is to analyse the chemical resistance of epoxy and polyester concretes when exposed to acids and salts. The chemical resistance is evaluated through the variation of bending strength and variation of mass, after exposure in acid and salted solutions, for various periods of time. The test solutions chosen were water solutions of sulphuric acid and sodium chloride. The motivation for this research work is the increasing use of polymer concrete structures near seawater and residual waters. 1 – INTRODUCTION Polymer concrete is a mixture of mineral aggregate and a polymer binder in which the polymeric resin replaces the Portland cement/water binder of conventional concrete [1]. In comparison with conventional Portland cement concrete, this unique composite material offers a number of advantages, such as higher strength, better chemical resistance, and lower permeability [2]. The applications of polymer concrete have developed quickly since the 1950s when it was used initially to produce synthetic marble. Since then, its applications in structural have increased tremendously because of its good workability, low-temperature curing
Chemical resistance of epoxy and polyester polymer concrete to acids and salts
Apr 29, 2023
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