Advances in Civil Engineering / 2018 / Article / Tab 3

Research Article

A Computer-Aided Approach to Pozzolanic Concrete Mix Design

Table 3

Approximate mixing water and target air content requirements for different slumps and nominal maximum sizes of aggregate “Table 3 is reproduced from Kosmatka et al. [39] (under the creative commons attribution license/public domain).”

Slump (mm) or air contentWater, kilograms per cubic meter of concrete, for indicated sizes of aggregate (kg/m3)
9.5 mm12.5 mm19 mm25 mm37.5 mm50 mm75 mm150 mm

Non-air-entrained concrete
25 to 50207199190179166154130113
75 to 100228216205193181169145124
150 to 175243228216202190178160
Approximate amount of entrapped air in non-air-entrained concrete (%)32.521.510.50.30.2

Air-entrained concrete
25 to 50181175168160150142122107
75 to 100202193184175165157133119
150 to 175216205197184174166154
Recommended average total air content, percent, for level of exposure:
Mild exposure4.54.03.53.02.52.01.51.0
Moderate exposure6.05.55.04.54.54.03.53.0
Severe exposure7.57.06.06.05.55.04.54.0

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