Concrete Mix: C20
Concrete mix designs — ingredient proportions, strength class, age, and compressive strength for various concrete mixes
| strength class | mix id | age days (days) | cement kg m3 (kg/m3) | cement type | coarse aggregate kg m3 (kg/m3) | fc mpa (MPa) | fine aggregate kg m3 (kg/m3) | flyash kg m3 (kg/m3) | max aggregate mm | mix label | notes | silica fume kg m3 | slag kg m3 (kg/m3) | slump mm max | slump mm min | standard | superplasticizer kg m3 (kg/m3) | water kg m3 (kg/m3) | wc ratio |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C20 | aci211-c20-n | 28 | 320 | OPC Type I | 1,190 | 20 | 710 | 0 | 19 | C20 Normal ACI 211.1 | Non-air-entrained; 19mm MSA; FM=2.7; unit wt ~2395 kg/m3; computed from ACI 211.1 w/c table and water content Table 6.3.3 | 0 | 0 | 100 | 50 | ACI 211.1-91 | 0 | 175 | 0.55 |
| C20 | ref-c20-standard | 28 | 280 | OPC | 1,200 | 20 | 760 | 0 | 20 | C20/25 Reference Normal | Standard reference mix for EN206 C20/25; 20mm MSA; typical slump 75-100mm; minimum strength class for XC1 exposure | 0 | 0 | 100 | 75 | EN 206:2013 | 0 | 168 | 0.6 |
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