Life Prediction of Iron Ore Tailings Concrete under Freeze-Thaw Cycle Based on Weibull Distribution

Table 4

The experimental plan and sample quantity of iron tailing concrete.

Concrete	Replace rate (%)	Specimen size (mm × mm × mm)	Number of specimens	Experiment purpose
C30	0	100 × 100 × 100	6 × 3	Freeze-thaw test and mechanical test
	20		6 × 3
	40		6 × 3
	60		6 × 3
	80		6 × 3
C30	0	100 × 100 × 400	3	Relative dynamic elastic modulus test
	20		3
	40		3
	60		3
	80		3