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 content
Water, kilograms per cubic meter of concrete, for indicated sizes of aggregate (kg/m3)
9.5 mm
12.5 mm
19 mm
25 mm
37.5 mm
50 mm
75 mm
150 mm
Non-air-entrained concrete
25 to 50
207
199
190
179
166
154
130
113
75 to 100
228
216
205
193
181
169
145
124
150 to 175
243
228
216
202
190
178
160
–
Approximate amount of entrapped air in non-air-entrained concrete (%)
3
2.5
2
1.5
1
0.5
0.3
0.2
Air-entrained concrete
25 to 50
181
175
168
160
150
142
122
107
75 to 100
202
193
184
175
165
157
133
119
150 to 175
216
205
197
184
174
166
154
–
Recommended average total air content, percent, for level of exposure: