Pretreatment of Woven Jute FRP Composite and Its Use in Strengthening of Reinforced Concrete Beams in Flexure

Table 4

Summary of test results.

Group designation	Beam designation	Failure of FRP	Deflection at midspan (mm)	Average deflection at midspan (mm)	Comments on deflection	Pultimate, (KN)	Pultimate, (KN); average	Strengthening effect (%)
Group A	Con1; Con2	—	11.271; 11.581	11.426	—	78; 82	80	—
Group B	JF1; JF2	Yes	23.882; 23.540	23.211	Results in huge deflection, hence gives sufficient warning.	126; 134	130	62.5%
Group C	JF3; JF4	No	17.021; 18.705	17.863	Deflections are lower than fully wrapped beams, since failure occurs at lower loads as compared to fully wrapped beams.	97; 103	100	25%