| Durability of concrete structures strengthened with FRP laminates |
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| 作者姓名： | 胡安妮 任慧韬 姚谦峰 |
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| 作者单位： | School of Civil and Hydraul. Eng. Dalian University of Technology，School of Civil and Hydraul. Eng. Dalian University of Technology，School of Civil and Engineering Xi’an University of Technololgy and Architecture，Dalian 116024 China，Dalian 116024 China，School of Civil and Engineering Xi’an University of Technololgy and Architecture Xi’an 710055 China，Xi’an 710055 China |
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| 基金项目： | Sponsored by the National Natural Science Foundation of China(Grant No50608013)，National Major Foundational Rearch(2004CCAO4100) |
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| 摘 要： | Based on the fast freeze-thaw cycling test, the alkaline immersion test, the water immersion test and the wet-thermal exposure test, the influence of aggressive environments on mechanical behavior of FRP was studied. CFRP specimens subjected to aggressive environments showed good durability with no significant degradation in tensile strength and modulus; however, GFRP specimens exhibited a little decrease in mechanical property after aggressive environments exposure. Based on the fast freeze-thaw cycling test and the wet-thermal exposure test, the influence of aggressive environments on the bond behavior between FRP and concrete, mechanical behavior of concrete beams and columns strengthened with FRP laminates was studied. The results showed that the bond strength had a significant decrease compared with those specimens kept at room temperature, and the specimens strengthened with FRP exhibited good durability.
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| 关 键 词： | 玻璃钢 耐久力 粘结剂 混凝土结构 |
| 文章编号： | 1005-9113（2007）04-0571-06 |
| 修稿时间： | 2004-10-14 |
Durability of concrete structures strengthened with FRP laminates |
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| HU An-ni,REN Hui-tao,YAO Qian-feng.Durability of concrete structures strengthened with FRP laminates[J].Journal of Harbin Institute of Technology,2007,14(4):571-576. |
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| Authors: | HU An-ni REN Hui-tao YAO Qian-feng |
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| Abstract: | Based on the fast freeze-thaw cycling test, the alkaline immersion test, the water immersion test and the wet-thermal exposure test, the influence of aggressive environments on mechanical behavior of FRP was studied. CFRP specimens subjected to aggressive environments showed good durability with no significant degradation in tensile strength and modulus; however, GFRP specimens exhibited a little decrease in mechanical property after aggressive environments exposure. Based on the fast freeze-thaw cycling test and the wet-thermal exposure test, the influence of aggressive environments on the bond behavior between FRP and concrete, mechanical behavior of concrete beams and columns strengthened with FRP laminates was studied. The results showed that the bond strength had a significant decrease compared with those specimens kept at room temperature, and the specimens strengthened with FRP exhibited good durability. |
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| Keywords: | FRP durability bond behavior |
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