How to Find out Concrete Cube Weight?

The cubes are generally tested at 7 & 28 days unless specific early tests are required, for example to remove a concrete shutter safely prior to 7 days. Usually 1 cube will be tested at 7 days and 2 cubes at 28 days, however this may vary depending of the requirements, check the design first. The cubes are removed from the curing tank, dried and grit removed. The cubes are tested using a calibrated compression machine. This can be carried out internally by competent personnel or by a certified test house.

The cubes are tested on the face perpendicular to the casting face. The concrete minimum compressive strength will be specified by the client/designer in a specific format.

Concrete Cube Weight

Unit weight (Density) of concrete=2400 Kg/cum

Density=Mass/volume

So we needed mass, i.e. formula is Mass=Density X volume

Volume of cube=150mm X 150mm X 150mm

Mass=2400 X (0.15*0.15*0.15) = 8.1

Result

Weight of cube in kg = 8.1

 

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