Standards normally are 4 inch
AA
The standard concrete building block for load-bearing walls is 8 x 8 x 16
a blinding concrete is a thin layer of lean concrete
Main function of the lean concrete is to provide the uniform surface to the foundation concrete and to prevent the direct contact of foundation concrete from the soil. Lean concrete is used under the foundations.
The maximum thickness of a reinforced concrete wall is 203 mm.
Lean mix concrete is used for substructures like foundations,piles,etc.,Ready mix concrete is used for superstructures and also for mass construction.Generally, quality of ready mix concrete is good when compared to the lean mix concrete.Workability of lean mix concrete is high when compared to RMC.
Most countertops of this nature are 1-1/4" to 1-1/2" in thickness.
The standard concrete building block for load-bearing walls is 8 x 8 x 16
a blinding concrete is a thin layer of lean concrete
Main function of the lean concrete is to provide the uniform surface to the foundation concrete and to prevent the direct contact of foundation concrete from the soil. Lean concrete is used under the foundations.
Based on your dimensions and a standard 3.5" to 4" thickness you will need 7 yards of concrete.
The maximum thickness of a reinforced concrete wall is 203 mm.
Lean mix concrete is used for substructures like foundations,piles,etc.,Ready mix concrete is used for superstructures and also for mass construction.Generally, quality of ready mix concrete is good when compared to the lean mix concrete.Workability of lean mix concrete is high when compared to RMC.
If you pour to a standard 4-inch thickness you will need 5.6 cubic yards.
Blind Concrete
Dry lean concrete is used as a sub base for structural concrete. It contains much less cement and more sand compared to structural concrete.
If you use a standard 4-inch thickness you will need a minimum of 6.17 cubic yards.
There is no standard thickness.