Microstructure Characteristics of GFRP Reinforcing Bars in Harsh Environment

Table 2

Physical properties of GFRP reinforcing bars.

Reference	Glass material	Matrix material	Diameter (mm)	Long. thermal expansion coef. (x 10^−6/°C)	Trans. thermal expansion coef. (x 10^−6/°C)	Moisture absorption (%)	Fiber content (%, by volume)	Fiber content (%, by mass)
[7]	E-glass	Vinylester	9.5	—	—	0.1	—	74.5
[8]	E-glass	Vinylester polyester epoxy	12	—	17.7–20.8	0.23–1.15	—	78.8–83.9
[9]	Short Glass E-glass	Vinylester	15.0–20.0	—	—	—	—	83
[10]	E-glass	Epoxy	8.0–9.0	—	—	0.1	—	75.5–78.3
[11]	E-glass	Epoxy	8.0–9.0	—	—	0.10	—	75–78
[12]	E-glass E-glass 366 Advantex 366 Advantex 712	Polyester vinylester	9.3–12.0	—	—	0.01–0.05	—	—
[13]	E-glass	Vinylester	19.0	6.1	23.5	0.48	65.4	74.5
[14]	E-glass	Vinylester	12.7	5.5	29.5	0.38	60.3	77.9
[15]	E-glass	Vinylester	9.5	—	—	—	65	—
[23]	E-glass	Vinylester polyester epoxy	12	—	—	0.23–1.15	—	78.8–83.9
[24]	E-glass	Vinylester	9.5–25.4	—	20.5–22.0	0.02–0.15	80.9–83.0	—
[25]	E-glass	Vinylester	12.7	6.7	27.2	0.62	64.3	81.5
[26]	E-glass	Vinylester	12.7	5.5	29.5	0.38	—	77.9
[27]	E-glass	Vinylester polyester	25.4–44.5	6.9–7.8	21.0–27.1	0.05–1.59	—	79.6–81.5
[28]	E-glass	Vinylester	8.0	—	—	—	—	—
[29]	E-glass	Vinylester	9	—	—	—	70	—
[30]	E-glass	Vinylester	12	—	—	—	—	83
[31]	E-glass	Epoxy	14	—	—	0.01	—	—
[32]	E-glass	Vinylester	12	—	—	—	—	83
[33]	E-glass	Vinylester	9.5	—	—	—	—	—
[34]	E-glass	Vinylester	12.7	—	—	0.37	—	81.5
[35]	E-glass	Vinylester	9.5–16.0	—	—	—	75	—
[36]	E-glass	Vinylester	12.7	—	—	—	—	69.1–73.3
[37]	E-glass	Vinylester	12	—	—	—	—	83
[38]	E-glass	Vinylester	—	—	—	—	—	—
[39]	E-glass	Vinylester	10	—	—	0.4	—	—
[40]	E-glass	Vinylester	—	—	—	—	—	—