Question

True or false:
a) Efflorescence can cause spalling.
b) Ictinus designed and built the Parthenon.
c) A "quirk" is a V-shaped incision in a moulding.

Answer

a) False. Efflorescence is an aesthetic problem (the encrustation of soluble salts on a masonry surface), whereas spalling is more structural (when small fragments are removed from the surface due to frost, chemical action, or building movement).

b) True, with Callicrates and Phidias.

c) True.