Durability of Glass Fiber-Reinforced Polymer Reinforcing Bars in Concrete Environment

Glass transitions of hygrothermal aged pultruded glass fibre reinforced polymer rebar by dynamic mechanical thermal analysis

“…Nevertheless, total moisture absorption after 4320 h (i.e. 6 months) was found to be only 0.362%, a finding lower than other alkaline moisture uptake values as reported by Benmokrane et al [21] and Chin et al [22].…”

Bond Strength of GFRP Bars Embedded in Engineered Cementitious Composite using RILEM Beam Testing

“…The use of GFRP bars can prevent deterioration due to corrosion, improve durability and increase the service life of structures. Researches have been conducted to evaluate the durability performance in aggressive environment and to develop models for predicting long-term strength retention of GFRP bars embedded in concrete (Benmokrane et al 2002;Chen et al 2006;Robert et al 2009;Mufti et al 2007). GFRP bars were proved to be a durable face to the concrete environment and it was shown that the service lifetime allowed to reach tensile strength retention of less than 50% should be infinite (Robert et al 2009;CSA S6-06 2006) which also supported the findings of Mufti et al (2007) who tested few GFRP reinforced structures after up to 9 years in service conditions.…”

Performance of externally bonded GFRP sheets on concrete in tropical environments. Part II: Microstructural tests

“…As a result, researchers report degradation of the GFRP rebars or sheets varying from 10% to 53% depending upon the parameters selected for durability tests viz. alkalinity, moisture, temperature, stress and duration of the tests [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The investigators, however, agree on the susceptibility of the glass fibers to alkali attack and this mechanism has been highlighted in all durability tests.…”