TY - JOUR
T1 - Physical, mechanical and durability properties of GFRP bars with modified acrylic resin (modar) matrix
AU - Spagnuolo, Simone
AU - Rinaldi, Zila
AU - Donnini, Jacopo
AU - Nanni, Antonio
N1 - Funding Information:
The authors gratefully acknowledge (1) National Science Foundation (NSF) and its industrial members for the support provided to the Industry/University Center for Integration of Composites into Infrastructure (CICI); (2) Tunneling Engineering Research Centre (TERC) for the support provided; (3) ATP S.r.l. for providing the GFRP bars.
Publisher Copyright:
© 2021 Elsevier Ltd
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/4/15
Y1 - 2021/4/15
N2 - Glass fiber reinforced polymer (GFRP) bars are currently used as internal reinforcement of concrete structures, as an alternative to traditional steel rebars, to avoid corrosion problems and durability issues. GFRP bars are usually made of continuous glass filaments embedded within a polyester (for non-structural applications) or vinyl ester resin. These resins have been used for many years in several technological fields and widely employed as matrices for composite materials with structural functions. However, since the matrix plays a fundamental role in protecting the fibers from the external environment, the development of new organic matrices able to withstand aggressive environmental conditions while keeping a low cost of production is certainly of great interest. In this study, the possibility of using a modified acrylic resin (ModAR), never employed for such applications, as matrix for GFRP bars has been investigated. Physical, mechanical and durability tests have been carried out, according to international standards, to evaluate the technical feasibility of using ModAR matrices. Experimental results showed that ModAR GFRP bars are able to offer high thermal resistance while keeping physical and mechanical properties within standard limits.
AB - Glass fiber reinforced polymer (GFRP) bars are currently used as internal reinforcement of concrete structures, as an alternative to traditional steel rebars, to avoid corrosion problems and durability issues. GFRP bars are usually made of continuous glass filaments embedded within a polyester (for non-structural applications) or vinyl ester resin. These resins have been used for many years in several technological fields and widely employed as matrices for composite materials with structural functions. However, since the matrix plays a fundamental role in protecting the fibers from the external environment, the development of new organic matrices able to withstand aggressive environmental conditions while keeping a low cost of production is certainly of great interest. In this study, the possibility of using a modified acrylic resin (ModAR), never employed for such applications, as matrix for GFRP bars has been investigated. Physical, mechanical and durability tests have been carried out, according to international standards, to evaluate the technical feasibility of using ModAR matrices. Experimental results showed that ModAR GFRP bars are able to offer high thermal resistance while keeping physical and mechanical properties within standard limits.
KW - Durability
KW - Fire retardants composites
KW - GFRP composite bars
KW - Modified acrylic resin
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U2 - 10.1016/j.compstruct.2021.113557
DO - 10.1016/j.compstruct.2021.113557
M3 - Article
AN - SCOPUS:85100235859
VL - 262
JO - Composite Structures
JF - Composite Structures
SN - 0263-8223
M1 - 113557
ER -