Experimental Study on Flexural Behavior of Prestressed Concrete Beams Reinforced by CFRP under Chloride Environment

Table 6

Parameters of cracks in the pure bending span.

Beam	Number	Average spacing (mm)	Height (mm)	Maximum width (mm)	Crack patterns	Failure mode
A1	7	91	170	0.18	MAC	CCF
C0-1	15	45	150	0.12	MAC, MIC, PEC	CCF, CRF
C40-1	16	39	165	0.28
C60-1	12	52	155	0.25
C0-2	12	47	155	0.12		CCF, CRF
C60-2	14	42	150	0.15
C40-2	12	52	162	0.11
C0-3	8	80	165	0.24	MAC	CCF, CSF
C60-3	8	77	160	0.22
C40-3	9	74	155	0.20

Note. MAC, major crack; MIC, minor crack; PEC, CFRP peeling crack; CCF, concrete crush failure; CSF, concrete shear failure; CRF, CFRP rupture failure.