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A platform for research: civil engineering, architecture and urbanism
The durability of glass fibre-reinforced polymer dowel after accelerated environmental exposure
The corrosion of steel dowel causes potential problems in jointed concrete pavement that necessitate alternative dowel materials. Glass fibre-reinforced polymer (GFRP) dowel is a possible maintenance-free alternative that will potentially reduce the overall lifetime cost of pavement. This study evaluated the long-term durability of GFRP dowel. It was subjected to accelerated ageing at an elevated temperature under five environmental conditions in South Korea: alkaline, water, salt, calcium chloride and repeated freeze-thaw cycles. Short-term acceleration tests were used to analyse the durability of GFRP dowel, and the results were used to examine the relationship between natural and accelerated deterioration. Adopting the Litherland approach, the factors for converting the test results to the natural deterioration period were determined for Korea. These time-temperature relationships will be useful for analysing the results of accelerated immersion tests. Given the road conditions encountered in Korea, GFRP dowel is better than steel dowel in terms of durability and corrosionresistance. The shear strength of GFRP was not reduced in the environmental conditions likely to be encountered in jointed concrete pavement slabs. The performance of the GFRP dowel remained high in terms of shear strength after exposure to different environmental exposure conditions
The durability of glass fibre-reinforced polymer dowel after accelerated environmental exposure
The corrosion of steel dowel causes potential problems in jointed concrete pavement that necessitate alternative dowel materials. Glass fibre-reinforced polymer (GFRP) dowel is a possible maintenance-free alternative that will potentially reduce the overall lifetime cost of pavement. This study evaluated the long-term durability of GFRP dowel. It was subjected to accelerated ageing at an elevated temperature under five environmental conditions in South Korea: alkaline, water, salt, calcium chloride and repeated freeze-thaw cycles. Short-term acceleration tests were used to analyse the durability of GFRP dowel, and the results were used to examine the relationship between natural and accelerated deterioration. Adopting the Litherland approach, the factors for converting the test results to the natural deterioration period were determined for Korea. These time-temperature relationships will be useful for analysing the results of accelerated immersion tests. Given the road conditions encountered in Korea, GFRP dowel is better than steel dowel in terms of durability and corrosionresistance. The shear strength of GFRP was not reduced in the environmental conditions likely to be encountered in jointed concrete pavement slabs. The performance of the GFRP dowel remained high in terms of shear strength after exposure to different environmental exposure conditions
The durability of glass fibre-reinforced polymer dowel after accelerated environmental exposure
Lebensdauer glasfaserverstärkter Polymerdübel nach beschleunigter Umweltbelastung
Won, Jong Pil (author) / Cho, Yong Chin (author) / Jang, Chang Il (author)
Polymers and Polymer Composites ; 14 ; 719-730
2006
12 Seiten, 11 Bilder, 6 Tabellen, 11 Quellen
Article (Journal)
English
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