Type or location of concrete construction | Specified average compressive strength, psi |
Concrete fill | Below 2000 |
Basement and foundation walls and slabs, walks, patios, steps and stairs | 2500 - 3500 |
Driveways, garage and industrial floor slabs | 3000 - 4000 |
Reinforced concrete beams, slabs, columns and walls | 3000 - 7000 |
Precast and pre-stressed concrete | 4000 - 7000 |
High-rise buildings (columns) | 10,000 - 15,000 |