Spalling of a refractory means its____________________?
Correct answer: B. Fracture due to uneven expansion at high temperature
- A. Softening
- B. Fracture due to uneven expansion at high temperature
- C. Resistance to compressive loads
- D. Resistance to chemical action of gases and molten fluxes
Explanation
Spalling is the breaking or flaking of a refractory surface caused mainly by uneven thermal expansion, thermal shock, or temperature gradients. It is not the same as softening or resistance to chemical attack.
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