Investigating Trends and Costs Associated with Designing Concrete Mixes Using Different Methods by Computer Programs

Table 5

Comparison between manual and program results for the Aïtcin method.

Mix proportions	Manual	Program	Variation
			Numeric	%
Cement (kg/m^3)	439.015	442	−2.99	−0.68
Water (kg/m^3)	118.114	117.98	0.13	0.11
FA (kg/m^3)	654.836	658.61	−3.77	−0.58
CA (kg/m^3)	1089	1089	0	0
Silica fume (kg/m^3)	25.824	26	−0.18	−0.68
Fly ash (kg/m^3)	51.649	52	−0.35	−0.68
Superplasticizer (kg/m^3)	7.65	7.7	−0.05	−0.65