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紫外线照射下FRP加固RC结构中材料基本性能的劣化

Deterioration of Basic Properties of the Materials in FRP-Strengthening RC Structures under Ultraviolet Exposure.

作者信息

Zhao Jun, Cai Gaochuang, Cui Lu, Si Larbi Amir, Daniel Tsavdaridis Konstantinos

机构信息

School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, China.

School of Natural and Built Environment, Queen's University Belfast, Belfast BT7 1NN, UK.

出版信息

Polymers (Basel). 2017 Aug 30;9(9):402. doi: 10.3390/polym9090402.

DOI:10.3390/polym9090402
PMID:30965705
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6418672/
Abstract

This paper presents an experimental study of the basic properties of the main materials found in reinforced concrete (RC) structures strengthened by fibre reinforced polymer (FRP) sheets with scope to investigate the effect of ultraviolet (UV) exposure on the degradation of FRP, resin adhesive materials and concrete. The comparison studies focused on the physical change and mechanical properties of FRP sheet, and resin adhesive materials and concrete before and after UV exposure. However, the degradation mechanisms of the materials under UV exposure were not analyzed. The results show that the ultimate tensile strength and modulus of FRP sheets decrease with UV exposure time and the main degradation of FRP-strengthened RC structures is dependent on the degradation of resin adhesive materials. The increase in the number of FRP layers cannot help to reduce the effect of UV exposure on the performance of these materials. However, it was verified that carbon FRP materials have a relatively stable strength and elastic modulus, and the improvement of the compression strength of concrete was also observed after UV exposure.

摘要

本文呈现了一项关于纤维增强聚合物（FRP）片材加固的钢筋混凝土（RC）结构中主要材料基本性能的实验研究，旨在探究紫外线（UV）照射对FRP、树脂粘结材料和混凝土降解的影响。对比研究聚焦于FRP片材、树脂粘结材料和混凝土在紫外线照射前后的物理变化和力学性能。然而，未对紫外线照射下材料的降解机制进行分析。结果表明，FRP片材的极限抗拉强度和模量随紫外线照射时间降低，且FRP加固RC结构的主要降解取决于树脂粘结材料的降解。增加FRP层数无助于降低紫外线照射对这些材料性能的影响。然而，已证实碳纤维FRP材料具有相对稳定的强度和弹性模量，且紫外线照射后混凝土的抗压强度也有所提高。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/c778679c4450/polymers-09-00402-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/eacf32d3a27d/polymers-09-00402-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/e96ecea2540b/polymers-09-00402-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/b73cd87b98d7/polymers-09-00402-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/358d4dbf974b/polymers-09-00402-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/3591cc713940/polymers-09-00402-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/4be0e79b719f/polymers-09-00402-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/bd1579abbf39/polymers-09-00402-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/7dd58cd64958/polymers-09-00402-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/60fe5aebc3f2/polymers-09-00402-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/49739b7ed601/polymers-09-00402-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/6696ecf68070/polymers-09-00402-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/430f2eb13e4b/polymers-09-00402-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/c3b0ab1963ce/polymers-09-00402-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/184f93da39e5/polymers-09-00402-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/71cf19522191/polymers-09-00402-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/25fd39bc1a66/polymers-09-00402-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/98b7422760c4/polymers-09-00402-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/c778679c4450/polymers-09-00402-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/eacf32d3a27d/polymers-09-00402-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/e96ecea2540b/polymers-09-00402-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/b73cd87b98d7/polymers-09-00402-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/358d4dbf974b/polymers-09-00402-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/3591cc713940/polymers-09-00402-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/4be0e79b719f/polymers-09-00402-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/bd1579abbf39/polymers-09-00402-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/7dd58cd64958/polymers-09-00402-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/60fe5aebc3f2/polymers-09-00402-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/49739b7ed601/polymers-09-00402-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/6696ecf68070/polymers-09-00402-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/430f2eb13e4b/polymers-09-00402-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/c3b0ab1963ce/polymers-09-00402-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/184f93da39e5/polymers-09-00402-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/71cf19522191/polymers-09-00402-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/25fd39bc1a66/polymers-09-00402-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/98b7422760c4/polymers-09-00402-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0061/6418672/c778679c4450/polymers-09-00402-g018.jpg

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本文引用的文献

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Effects of increased solar ultraviolet radiation on materials.太阳紫外线辐射增强对材料的影响。
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Effect of Fibers Configuration and Thickness on Tensile Behavior of GFRP Laminates Exposed to Harsh Environment.纤维构型和厚度对暴露于恶劣环境下的玻璃纤维增强塑料层压板拉伸性能的影响。
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Finite-Element Investigation of the Structural Behavior of Basalt Fiber Reinforced Polymer (BFRP)- Reinforced Self-Compacting Concrete (SCC) Decks Slabs in Thompson Bridge.汤普森桥中玄武岩纤维增强聚合物（BFRP）增强自密实混凝土（SCC）桥面板结构性能的有限元研究
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