Grey Prediction Model for Drying Shrinkage of Cement Concrete Made from Recycled Coarse Aggregate Containing Superabsorbent Polymers

Table 6

The elevated indicators of the accuracy of the grey prediction model.

Indicators
Grade	Relative error	Correlation	(C)-mean square deviation ratio	Probability of small error
One	0.01	0.90	0.35	0.95
Two	0.05	0.80	0.50	0.80
Three	0.10	0.70	0.65	0.70
Four	0.20	0.60	0.80	0.60