cube tested for weight before compression test?
The main reason for calculating the weight of concrete block before testing in the compression machine is to check whether the weight is approximately equal to the value, which is calculated by the multiplication of density and volume. This is a way to see approximately whether the concrete being used is correct or not. Now the exact results can be calculated by the concrete compression-testing machine, which will give the strength the block can hold. Mass = density x volume The concrete block should weigh about 8 ~ 8.5kg for a 150*/150*150mm3. If the value does not come as the given value then the concrete mixture is not correct and the compressive testing is of no use, as the concrete being taken cannot be used in building structures.
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