An Experimental Investigation on the Failure Behavior of a Notched Concrete Beam Strengthened with Carbon Fiber-Reinforced Polymer

Table 4

The details for the tested concrete specimens.

Objective	Type	No.	Description	CFRP length (mm)	Notch depth (mm)
The effect of CFRP length	Group I	10-000	Without CFRP	0	10
		10-100	Single-layer CFRP	100
		10-200	Single-layer CFRP	200
		10-350	Single-layer CFRP	350
	Group II	20-000	Without CFRP	0	20
		20-100	Single-layer CFRP	100
		20-200	Single-layer CFRP	200
		20-350	Single-layer CFRP	350
	Group III	30-000	Without CFRP	0	30
		30-100	Single-layer CFRP	100
		30-200	Single-layer CFRP	200
		30-350	Single-layer CFRP	350
The effect of notch depth	(Group IV)	10-000	Without CFRP	0	10
		20-200	Single-layer CFRP	200	20
		30-200	Single-layer CFRP		30
The effect of CFRP thickness and bonding method	Group V	20-000	Without CFRP	0	20
		20-100	Single-layer CFRP	100
		20-100s	Two-layer CFRP
		20-100b	Single-layer CFRP and using U-shaped cap
	Group VI	20-000	Without CFRP	0
		20-200	Single-layer CFRP	200
		20-200s	Two-layer CFRP
		20-200b	Single-layer CFRP and using U-shaped cap
	Group VII	20-000	Without CFRP	0
		20-350	Single-layer CFRP	350
		20-350s	Two-layer CFRP
		20-350b	Single-layer CFRP and using U-shaped cap

Explanation for No. A-B (the 3rd column): A is for the length of the initial notch, B for the bonded CFRP length, s for two layers of CFRP, and b for U-shaped cap used for one single layer of CFRP.