Decision Support Model for Design of High-Performance Concrete Mixtures Using Two-Phase AHP-TOPSIS Approach

Table 4

Quantitative optimum values of mix factors from published literature.

Mix factors for extreme environment	Ahmed et al. [19], ACI method	Ahmed et al. [19], DOE method	Mix design guidelines for optimum value with lowest cost
			Ahmad [25], Neville [26]	Simon [22]	Soudki et al. [23]	Yurdakul, [27]
w/c ratio	0.5	0.5		0.4–0.43
CA/c ratio	2.43	2.51
T/c ratio	4.31	4.26	4.88	4.3–5.1	3–3.6
FA/c ratio	1.88	1.75
FA/T ratio	0.43	0.41	0.38	0.39	0.45–0.4	0.42