期刊
BUILDINGS
卷 12, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/buildings12010009
关键词
epoxy asphalt mixture; steel bridge deck; structure and material; fatigue durability performance; bonding performance; anti-skid performance
资金
- Natural Science Fund of Guangdong Province [2019A1515011965]
- Natural Science Foundation of China [51808228]
This study comprehensively investigates the integrated structural and material design of the epoxy asphalt mixture used in steel bridge deck pavement. The results show that epoxy asphalt concrete has better flexibility with a higher fatigue endurance limit strain level compared to the steel bridge deck pavement, indicating a longer service life can be achieved. Additionally, epoxy asphalt concrete has significant water tightness, protecting the steel plate interface from corrosion and ensuring good bonding performance.
To comprehensively investigate the integrated structural and material design of the epoxy asphalt mixture used in steel bridge deck pavement, the following works have been conducted: 1. The strain level of steel bridge deck pavement was calculated; 2. The ultimate strain level of fatigue endurance for epoxy asphalt concrete was measured; 3. The effect of water tightness of epoxy asphalt mixture on the bonding performance of steel plate interface was tested. 4. For better performance evaluation, quantitative analysis of the anti-skid performance of epoxy asphalt mixture was carried out by testing the structure depth using a laser texture tester. Results show the following findings: 1. The fatigue endurance limit strain level of epoxy asphalt mixture (600 mu epsilon) was higher than that of the steel bridge deck pavement (<300 mu epsilon), indicating that the use of epoxy asphalt concrete has better flexibility and can achieve a longer service life in theory; 2. The epoxy asphalt concrete has significant water tightness to protect the steel plate interface from corrosion and ensure good bonding performance; 3. The porosity of epoxy asphalt mixture used in steel bridge deck paving should be controlled within 3%; 4. In terms of anti-skid performance of bridge deck pavement, the FAC-10 graded epoxy asphalt mixture is recommended when compared with EA-10C.
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