Journal of Materials and Engineering Structures
Volume 7, Numéro 4, Pages 583-589
2020-12-30

Experimental Research On Properties Of Polymer Concrete Used For Repairing Portland Cement Concrete Pavement Of Airport



Authors : Huy Khang Pham . Trong Hiep Nguyen .

Abstract

Polymer concrete (PC) is a popular construction material used for repair, thin overlays for floors and bridge decks, and other specialized fields such as precast components, machine construction. The material has many desirable properties such as fast curing, high compressive and flexural strength, high bonding to substrate, resistance to chemical agents. This study focuses on finding the suitable PC content oriented for repairing works of airfield Portland cement concrete (PCC) pavement. An experimental program was designed to investigate the mechanical properties of PC mixtures with polymer resin and filler contents varied in the ranges of 12-22 wt. % and 0-20 wt. %, respectively. The tests were conducted in accordance with the Vietnam standards system, for all samples at 2-hour-age and room condition. The test results showed that the highest values of compressive and flexural strengths and elastic modulus were 95.9 MPa, 18.7 MPa, and 37.8 GPa, respectively, at the same mixture of 22 wt. % polymer binder and 20 wt. % filler content. For samples of more than 18 wt. % of polymer binder, the direct pull-off tests demonstrated that the PC perfectly bonded to the existing PCC, with all failure locations occurred in PCC substrate. The abrasion test showed that all PC mixtures has lost only less than 0.09 g/cm2, about one-third of regulated value for airfield pavement.

Keywords

Polymer concrete; Portland cement concrete pavement ; Airport rigid pavement repair; Airport pavement distress

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