TY - JOUR
T1 - Durability assessment of FRP-concrete bond after sustained load for up to thirteen years
AU - Lee, Jaeha
AU - Kim, Jinhoo
AU - Bakis, Charles E.
AU - Boothby, Thomas E.
N1 - Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (Grant 2018R1A1A1A05018602 ) and by the United States National Science Foundation (Grant 0219484 ). The opinions, findings, conclusions, and recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of the sponsors.
Publisher Copyright:
© 2021
PY - 2021/11/1
Y1 - 2021/11/1
N2 - Small-scale plain concrete notched beams strengthened with carbon and glass fiber reinforced polymer (CFRP and GFRP) sheets were tested in flexure to assess the change in debond onset strain following sustained flexural loading in indoor and outdoor environments for as long as 13 years. The bond tests were all conducted quasi-statically in a normal laboratory atmosphere. For indoor conditioning, debond onset strain was practically unchanged in the CFRP beams over 13 years, while a decrease was seen in the GFRP beams. For outdoor conditioning, which included freeze-thaw cycles, rain, hot weather, and ultraviolet exposure, clear reductions in debond onset strain were observed in both GFRP and CFRP strengthened beams.
AB - Small-scale plain concrete notched beams strengthened with carbon and glass fiber reinforced polymer (CFRP and GFRP) sheets were tested in flexure to assess the change in debond onset strain following sustained flexural loading in indoor and outdoor environments for as long as 13 years. The bond tests were all conducted quasi-statically in a normal laboratory atmosphere. For indoor conditioning, debond onset strain was practically unchanged in the CFRP beams over 13 years, while a decrease was seen in the GFRP beams. For outdoor conditioning, which included freeze-thaw cycles, rain, hot weather, and ultraviolet exposure, clear reductions in debond onset strain were observed in both GFRP and CFRP strengthened beams.
UR - http://www.scopus.com/inward/record.url?scp=85111235740&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85111235740&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2021.109180
DO - 10.1016/j.compositesb.2021.109180
M3 - Article
AN - SCOPUS:85111235740
SN - 1359-8368
VL - 224
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
M1 - 109180
ER -