Experimental Study on the Effect of Boric Acid Corrosion on the Performance of Reinforced Concrete

Table 2

Mechanical properties of concrete.

Test environment		Immersion			Dry-wet cycles
Age (d)	Concentration (%)	Compressive strength (MPa)	Splitting tensile strength (MPa)	Elastic modules (10^4 MPa)	Compressive strength (MPa)	Splitting tensile strength (MPa)	Elastic modules (10^4 MPa)
60	0	60.0	3.90	3.54	58.3	3.78	3.52
	0.27	59.6	3.88	3.54	57.7	3.78	3.52
	0.8	59.3	3.89	3.54	57.2	3.76	3.51
	3	58.7	3.87	3.53	56.8	3.77	3.51
120	0	63.7	4.39	3.61	62.2	4.28	3.59
	0.27	63.0	4.36	3.60	61.1	4.24	3.58
	0.8	62.3	4.32	3.60	60.5	4.21	3.58
	3	61.5	4.29	3.59	59.7	4.17	3.56
180	0	66.9	4.66	3.67	64.7	4.57	3.65
	0.27	65.9	4.61	3.65	63.2	4.50	3.64
	0.8	64.9	4.58	3.65	62.5	4.46	3.64
	3	64.1	4.51	3.63	61.5	4.39	3.61
240	0	68.8	4.78	3.85	67.5	4.72	3.83
	0.27	67.7	4.72	3.82	66.0	4.65	3.81
	0.8	66.7	4.69	3.81	65.2	4.60	3.80
	3	66.0	4.63	3.80	64.1	4.55	3.77
300	0	69.6	4.85	3.92	69.0	4.83	3.91
	0.27	68.4	4.79	3.89	67.4	4.75	3.89
	0.8	67.5	4.76	3.88	66.7	4.71	3.88
	3	66.7	4.69	3.87	65.8	4.65	3.86