Table 6.

Statistical data to quantify the variation of $f_{cc}$/$f_{co}^{\prime }$ and ε_cu/ε_co under different replacement ratios.

H	Group 1			Group 2			Group 3			Group 4
	${\mathit{f}}_{\mathit{l}}/{\mathit{f}}_{\mathit{c}\mathit{o}}^{\prime }$ = 0.06–0.08			${\mathit{f}}_{\mathit{l}}/{\mathit{f}}_{\mathit{c}\mathit{o}}^{\prime }$ = 0.10–0.15			${\mathit{f}}_{\mathit{l}}/{\mathit{f}}_{\mathit{c}\mathit{o}}^{\prime }$ = 0.23–0.28			${\mathit{f}}_{\mathit{l}}/{\mathit{f}}_{\mathit{c}\mathit{o}}^{\prime }$ = 0.41–0.46
	μ	σ	COV	μ	σ	COV	μ	σ	COV	μ	σ	COV
fcc/f ’co	1.092	0.074	0.067	1.456	0.121	0.083	1.926	0.112	0.058	2.608	0.140	0.054
εcu/εco	3.525	0.468	0.133	4.478	0.573	0.128	6.282	0.619	0.099	8.068	1.163	0.144