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2023 Vol.14, Issue 4 Preview Page

General Article

Quality characteristics of glass fiber reinforced polymer (GFRP) rebar products based on curing agents, heating temperature and production speed
Seungjun Roh1
,
Mina Seong2
,
Hyeongseok Cho3
,
Seungyoup Lee1
,
Byeongyeob Kim4*
,
Hyunman Lee5
1Assistant Professor, School of Architecture, Kumoh National Institute of Technology, Gumi, Gyeongbuk, South Korea
2Master’s Course Student, Department of Architectural Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk, South Korea
3Undergraduate Student, School of Architecture, Kumoh National Institute of Technology, Gumi, Gyeongbuk, South Korea
4Director of Research Institute, PMC Global Co., LTD., Chilgok, Gyeongbuk, South Korea
5President, PMC Global Co., LTD., Chilgok, Gyeongbuk, South Korea
*Corresponding Author
30 December 2023. pp. 534-542
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Abstract

Glass Fiber Reinforced Polymer (GFRP) rebar has the potential to contribute to the durability of various construction structures, including bridges, buildings, and tunnels. The manufacturing process of GFRP rebar involves a high-temperature heating stage, and the impact of such elevated temperature on the properties and performance of GFRP rebar has not been extensively studied. Therefore, this study aims to analyze the quality characteristics of GFRP rebar products based on the usage of curing agents, heating temperature, and production speed. In this regard, various GFRP rebar products were produced by varying the curing agent dosage, heating temperature across six zones, and production speed. Visual inspections focused on the presence of indentation marks, carbonization, generation of bubbles, and occurrence of bending. Additionally, to estimate the interrelation between product quality and strength, flexural strength was measured and analyzed. The results revealed distinct variations in indentation marks, generation of bubbles, and occurrence of bending based on curing agent conditions. Furthermore, carbonization was observed to occur when the heating temperature exceeded 220°C.

Keywords
GFRP rebar
quality
curing agent
heating temperature
production speed
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Information
  • Publisher :Sustainable Building Research Center (ERC) Innovative Durable Building and Infrastructure Research Center
  • Publisher(Ko) :건설구조물 내구성혁신 연구센터
  • Journal Title :International Journal of Sustainable Building Technology and Urban Development
  • Volume : 14
  • No :4
  • Pages :534-542
  • Received Date : 2023-12-04
  • Accepted Date : 2023-12-15
  • DOI :https://doi.org/10.22712/susb.20230041
Journal Informaiton International Journal of Sustainable Building Technology and Urban Development International Journal of Sustainable Building Technology and Urban Development
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