Effect of freeze-thaw cycles on bond properties of FRP sheet-brick

被引：0
|
作者：
Wang Z. [1 ]
Wang J. [1 ]
Shen S. [2 ]
Chen L. [1 ]
机构：
[1] School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing
[2] Institute of Robotics, Ningbo University of Technology, Ningbo
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2022年 / 39卷 / 11期
关键词：
Bonding performance; Brick; Durability; Freeze-thaw cycle; FRP sheet;
D O I：
10.13801/j.cnki.fhclxb.20220110.003
中图分类号：
学科分类号：
摘要：
The effect of freeze-thaw cycles on the interfacial bonding properties of fiber reinforced polymer (FRP) sheet reinforced blocks was studied. Two kinds of fiber sheets, carbon fiber reinforced polymer (CFRP) sheet and glass fiber reinforced polymer (GFRP) sheet, were used to strengthen clay brick and shale brick respectively. The tests of various material properties, pull-off bond and single-lap shear bond were carried out to study the effect of freeze-thaw times. The results show that the mechanical properties of clay brick, shale brick, mortar block, CFRP sheet, GFRP sheet and epoxy resin are seriously affected by freeze-thaw cycles, and all decrease significantly with the increase of freeze-thaw times. The pull-off bond strength and single-lap shear bond strength of FRP sheet and brick gradually decrease with the increase of freeze-thaw times. After 30 freeze-thaw cycles, the pull-off debonding force of FRP sheet and brick block is reduced by 45.49%, and the single-lap shear bond strength of FRP sheet and brick block is reduced by 42.26%. The type of FRP sheet has little effect on the pull-off bond strength under different freeze-thaw times, but has a certain effect on the single-lap shear bond strength. © 2022, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.
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页码：5275 / 5286
页数：11
相关论文
共 25 条
  • [1] WANG Zuohu, YANG Wenxiong, LIU Du, Research progress on interfacial adhesion of FRP-strengthened masonry structures, Fiber Reinforced Plastics/Compo-sites, 288, 1, pp. 103-107, (2018)
  • [2] WANG Zuohu, SHEN Shuyang, YANG Ju, Et al., Research progress on durability of bond interface of FRP sheet reinforced structures, Composites Science and Engineering, 318, 7, pp. 117-122, (2020)
  • [3] BABATUNDE S A., Review of strengthening techniques for masonry using fiber reinforced polymers, Composite Structures, 161, pp. 246-255, (2017)
  • [4] VACULIK J, VISINTIN P, BURTON N G, Et al., State-of-the-art review and future research directions for FRP-to-masonry bond research: Test methods and techniques for extraction of bond-slip behavior, Construction and Building Materials, 183, pp. 325-345, (2018)
  • [5] GHIASSI B, LOURENCO P B, OLIVEIRA D V., Accelerated hygrothermal aging of bond in FRP-masonry systems, Journal of Composites for Construction, 19, 3, (2015)
  • [6] GHIASSI B, LOURENCO P B, OLIVEIRA D V., Effect of environmental aging on the numerical response of FRP-strengthened masonry walls, Journal of Structural Engineering, 142, 1, (2016)
  • [7] SCIOLTI M S, AIELLO M A, FRIGIONE M., Influence of water on bond behavior between CFRP sheet and natural calcareous stones, Composites Part B: Engineering, 43, 8, pp. 3239-3250, (2012)
  • [8] TEDESCHI C, KWIECIEN A, VALLUZZI M R, Et al., Effect of thermal ageing and salt decay on bond between FRP and masonry[J], Materials and Structures, 47, 12, pp. 2051-2065, (2014)
  • [9] CARDANI G, VALLUZZI M R, PANIZZA M, Et al., Influence of salt crystallization on composites-to-masonry bond evaluated on site by pull-off tests, Key Engineering Materials, 624, pp. 338-345, (2014)
  • [10] MALJAEE H, BAHMAN G, LOURENCO P B, Et al., Moisture-induced degradation of interfacial bond in FRP-strengthened masonry, Composites Part B: Engineering, 87, pp. 47-58, (2016)
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