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Title |
The Physical Properties of Polymer Concrete for Ultra Thin Bridge Deck Pavement
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Authors |
김현준 ; 손영효 ; 한범진 ; 정지은 ; 박선규 |
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Keywords |
동결 융해 ; 폴리머 콘크리트 ; 폴리설파이드 에폭시 ; 강도 시험 ; 초박층 교면포장 ; Freezing-thawing ; Polymer concrete ; Polysulfide epoxy ; Strength test ; Ultra-thin bridge deck pavement |
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Abstract |
This research was performed to identify physical properties of polysulfide epoxy polymer concrete for ultra-thin bridge deck pavement, and improve domestic applicability. With the optimum mix ratio determined from mixing experiments of polymer concretes, compressive, flexural, and bond strength were tested to identify its strength properties along with the freezing-thawing resistance test to evaluate its durability in harsh environments. As a result, the tested polymer concretes showed excellent performance in strength and deflection characteristic and all tested strength satisfied the criteria of American Concrete Institute. Moreover, it had better performance under variable temperatures comparing to other existing pavement materials. By the results of freezing-thawing resistance test and strength measurement for specimens underwent the freezing-thawing process, it can be judged that there is no such problem to the concrete's durability. In conclusion, the newly developed polymer concrete in this research has appropriate properties for use in ultra-thin pavement on bridge deck, and moreover it has superior applicability in comparison with former materials due to its improved temperature sensitivity.
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