Design of Normal Concrete Mixtures Using Workability-Dispersion-Cohesion Method

Table 3

Entrapped air in concrete mixes.

Stage	Max. aggregate size	Number of tests	Range (min.–max.)	Average	Standard deviation	Deviation from the ACI 211.1
Stage  1	40	18	0.95–1.35	1.09	0.084
	20	42	1.75–2.55	2.08	0.245
	10	18	2.35–3.50	2.95	0.356
Stage  2	40	28	1.00–1.50	1.23	0.165
	20	146	1.85–2.65	2.20	0.283
	10	34	2.25–3.65	3.05	0.383