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Is cement and concrete the same thing?
No, it is differentCement is a constituent of concrete.Where as concrete is a mixture of cement, fineaggregate, coarse aggregate and water.
Can a cement mixer be used for mixing concrete and vice versa?
There is no such thing as a cement mixer. It's like asking if a flour pan is the same as a cake pan. Cement is an ingredient that when mixed with aggregates and water will produce concrete.
Does mixing cement weigh the same as dried concrete?
no
What will be the effect on specific gravity of cement if some of the sample is lost after weighing?
There is no effect on the specific gravity if some of the sample is removed. The amount of mass will change, but it will still have the same specific gravity. It is basically a density. The specific gravity of 1lb of cement is the same as the specific gravity of 100lbs of cement, you just have more cement.
How much extra type 1 cement do you add to bag mix to make type 3 cement?
Typically you would need about 30% more type I cement to attain the same early strength gain as Type III cement.
