Addition of grog in fireclay brick during its manufacture is advantageous, because it results in Options: A . &nbspless shrinkage in heating, decreased apparent porosity & increased specific gravity. B . &nbsphigh strength & thermal spalling resistance. C . &nbspless addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production. D . &nbspall (a), (b) and (c).

Question

Addition of grog in fireclay brick during its manufacture is advantageous, because it results in

Options:

A . less shrinkage in heating, decreased apparent porosity & increased specific gravity.

B . high strength & thermal spalling resistance.

C . less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production.

D . all (a), (b) and (c).

Answer: Option D

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