Table 6: Result of confirmation experiment and their comparison with regression model.

Exp. no.Fly ash content
(wt. %) (A)
Applied load (N)
(B)
Sliding speed (m/s)
(C)
Regression model wear rate
(μm)
Experimental
wear rate (μm)
% Error

112.55167.7714.64
217.5150.585.5583−3.07