Concrete ratio
1
Class Cement per bag Sand per M3 Gravel Per M3 Water Per gallon Strength PSI Uses AAA 1 1 2 6 4,500 Pre- stresses and Post - tensioned AA 1 1 1/2 3 6 4,000 Underwater retaining wall, shear wall and elevator core walls A 1 2 4 6 3,500 Footings, pier, columns, girders, beams, joists and slabs B 1 2 1/2 5 6 3,000 Slabs on fill and non – load bearing wall or 4” CHB C 1 3 6 6 2,500 Concrete plant boxes and parapet walls D 1 3 1/2 7 6 2,000 Plant boxes, footpaths, walkway and lean concrete
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Transcript of Concrete ratio
Class Cement
per bag
Sand
per M3
Gravel
Per M3
Water
Per gallon
Strength
PSI
Uses
AAA 1 1 2 6 4,500 Pre- stresses and
Post - tensioned
AA 1 1 1/2 3 6 4,000 Underwater retaining wall, shear
wall and elevator core walls
A 1 2 4 6 3,500 Footings, pier, columns, girders,
beams, joists and slabs
B 1 2 1/2 5 6 3,000 Slabs on fill and non – load
bearing wall or
4” CHB
C 1 3 6 6 2,500 Concrete plant boxes and parapet
walls
D 1 3 1/2 7 6 2,000 Plant boxes, footpaths, walkway
and lean concrete