Effect of harsh environmental conditions on the tensile properties of GFRP bars

Effect of loading rate and chemical corrosion on the mechanical properties of large diameter glass/basalt-glass FRP bars

“…The deterioration of mechanical properties of GFRP under alkaline environment has been widely observed [3][4][5][6][7][8][9][10][11]22,23]. As stated above, the large diameter FRP bar was developed in this study to work as soil nails, which are very possible to get in touch with alkaline environment due to the cement grouting.…”

“…Among all the types of FRP materials developed, the glass fiber reinforced polymer (GFRP) is more attractive because of its lower cost and therefore, the durability and mechanical properties of GFRP bars have been studied most extensively since 1990s [3][4][5][6][7][8][9][10][11]. It is commonly recognized that, compared with steel bars, GFRP bars have advantages such as lighter self weight, higher ultimate tensile strength, much better resistance to chemical corrosion and complete resistance to magnetic effects.…”

Laboratory assessment and durability performance of vinyl-ester, polyester, and epoxy glass-FRP bars for concrete structures

“…Different types of fibers are used in manufacturing FRP bars such as carbon, glass, aramid, and basalt. Many studies have been carried out on the performance and use of FRP bars made with these different fibers, providing good insight into their physical and mechanical properties as well as their durability characteristics (Kocaoz et al 2005;Banibayat and Patnaik 2014;Ali et al 2015;Benmokrane et al 2016a, b;Li et al 2015;Abbasi and Hogg 2005;Alsayed et al 2012;Al-Salloum et al 2013;Hassan et al 2016;Tanks et al 2016). Glass is the most commonly used fiber type in manufacturing FRP bars due to their relatively low comparative cost (ACI 2015).…”

“…The resin system also protects the fibers from abrasion and impact damage as well as from severe environmental conditions-such as water, salts, and alkalis-which affect the durability of FRP products (SP System 1998). A deterioration of this interface reduces the transfer of the loads between fibers and thus weakens the composite materials (Almusallam et al 2013). The interface between the fiber and matrix is a nonhomogeneous region about 1 µm thick.…”

Low temperature catalytic oxidative aging of LDPE films in response to heat excitation

“…14, the neat LDPE film (Fig. Namely 516 the long chains are cut in chemical way to form the shorter chains, eventually leading to 517 the appreciate loss of mechanical property [34]. On the contrary, the dramatic decreases ( Fig.…”