Laboratory Studies of Polyester-Styrene Polymer Concrete Engineering Properties
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The deterioration of bridge decks, due to the corrosion of reinforcing steel, is a major problem in the United States. Previous investigation has shown that polyester-styrene polymer concrete overlays can provide effective protection for portland cement concrete bridge decks. This report presents the results of laboratory testing of polyester-styrene polymer concrete, which was conducted to aid the Nevada Department of Transportation in their use of polymer concrete as a protective bridge deck overlay material. The goals of the research included determination of strength properties of the polymer concrete currently in use, identification of an alternate source of aggregate for use in polymer concrete, and the determination of the optimum mixture design for each aggregate type. Tests performed on various polyester concrete mixtures included compressive strength, flexural strength, flow of fresh concrete, and unit weight. Several recommendations are made in an effort to ensure that the highest quality polyester-styrene polymer concrete is being produced at the most economical cost. Recommendations for additional laboratory study are also presented (Abstract by authors).
Report No. CCEER-91-5