Experimental Study on Mechanical Properties of CFRP-Confined Concrete Columns under Continuous Semi-Submergence of Sulfate

Table 1

Specimen grouping and numbering.

Test groups	Specimen number	Testing environment	Immersion age (days)	Number of CFRP binding layers	Number of specimens
1	CA0	Natural environment	0	2	3
2	CAH60	Continuous semisoaking	60	2	3
3	CAH90	Continuous semisoaking	90	2	3
4	CAH120	Continuous semisoaking	120	2	3
5	CAH180	Continuous semisoaking	180	2	3
6	CAH240	Continuous semisoaking	240	2	3