Question

Which of the following is a property of fireclay?

(a) Rigid under load

(b) Poor resistance to spalling

(c) Instability in volume

(d) Poor resistance to attack by alkalies

The question was asked in an online quiz.

I would like to ask this question from Refractory Materials, Superalloys topic in chapter Refractories & Dielectric Materials of Engineering Material & Metallurgy

Answer 1

Correct option is (a) Rigid under load

To elaborate: Fireclay is a common refractory brick which is available as a semi-silica class. It has a good rigidity under load at high temperatures and good resistance to structural spalling. These bricks are also resistant to penetration and attack by alkalies and fumes, and also possess volume stability.