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

Table 5

Mechanical properties of reinforced concrete.

Test environment		Immersion		Dry-wet cycles
Age (d)	Concentration (%)	Bond strength (MPa)	Flexural strength (kN)	Bond strength (MPa)	Flexural strength (kN)
60	0	7.62	21.6	7.56	20.8
	0.27	7.61	21.6	7.56	20.6
	0.8	7.61	21.4	7.54	20.7
	3	7.59	21.3	7.54	20.5
120	0	7.87	24.2	7.70	23.7
	0.27	7.85	24.0	7.67	23.4
	0.8	7.82	23.9	7.64	23.3
	3	7.79	23.6	7.60	23.0
180	0	8.05	25.4	7.96	25.2
	0.27	8.02	25.1	7.91	24.8
	0.8	7.96	24.0	7.88	24.6
	3	7.93	24.6	7.82	24.3
240	0	8.21	25.8	8.18	25.5
	0.27	8.17	24.5	8.12	25.0
	0.8	8.10	25.3	8.06	24.9
	3	8.08	25.0	8.03	24.6
300	0	8.27	25.6	8.28	25.7
	0.27	8.23	25.2	8.23	25.2
	0.8	8.20	25.1	8.19	25.1
	3	8.15	24.7	8.13	24.9