Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP Bars

Table 2

Tensile test results of GFRP bars.

Environment	Curing system	Working condition	Ultimate tensile strength (UTS)
			Average; (MPa)	Tensile strength retention; (%)	Variable coefficient; (%)
	Reference	RE	1320	100	1.67
GFRP bare bars	Standard-curing	B-Sta	1300	98	2.48
		B- Ste40	1271	96.3	3.31
	Steam-curing	B-Ste60	1214	92	5.11
		B-Ste80	1122	85	3.69
GFRP bars embedded in concrete	Standard-curing	C-Sta	1287	97.5	2.67
		C-Ste40	1273	96.42	3.28
	Steam-curing	C-Ste60	1252	94.85	3.57
		C-Ste80	1192	90.34	2.96