A Study on the Flexural Performance of Para-aramid Fiber Reinforced Concrete Beams with Recycled Coarse Aggregates

International Journal of Concrete Structures and Materials

Table 1 Previous domestic research test results for strength of fiber reinforced concrete

Classification	Fiber reinforcement material				At maximum resistance
Classification	Type of fiber reinforcement material	Tensile strength (GPa)	Modulus of elasticity (GPa)	Applying method	Load (kN)	Displace ment (mm)
(1) Cho. et al. (2016)	Aramid fiber sheet	2.1	117.7	-	62.9	51.4
				B*	88.1	49.2
				BU*	86.9	35.6
				BS*	131.9	33.1
(2) Kim. et al. (2012)	CFRP* sheet	4.5	245.2	M2*	99	21.9
				M3	95	17.5
				M4	84.4	14.4
				L3*	169.4	30.3
(3) Kim et al (2014)	CFRP sheet	3.5	235	R15-CFS	81.1	32.6
				R30-CFS	78.3	51.2
				R50-CFS	71.1	43.2
	CFRP plate	3.5	165	R30-CFP	97.9	18.2
	CFRP plate	3.5	165	R50-CFP	103.2	52.3

CFRP Carbon Fiber Reinforcement Polymer, B application to the bottom part of beam, BU application to the bottom and side part of beam, BS application to the bottom part and U-band both ends, M2 medium size (3200 × 150x250 mm) of reinforced beam with 2 layers of reinforcement sheet, L2 large size (4600 × 300x350 mm) of reinforced beam with 2 layers of reinforcement sheet