Question

Select the incorrect statement from the following options.

(a) Puzzolona is the oldest cement invented by Romans

(b) Natural puzzolona is deposit of volcanic ash

(c) Puzzolona was used in making concrete for the construction of walls and domes

(d) Puzzolona is quite setting cement and posses relatively low strength

I had been asked this question during an online interview.

The origin of the question is Construction Material Cement in portion Materials and their Properties of Engineering Chemistry I

Answer 1

Right answer is (d) Puzzolona is quite setting cement and posses relatively low strength

Best explanation: Natural cement is quite setting cement and posses relatively low strength. All the other options are correct. Puzzolona is the oldest cement invented by Romans, used in making concrete for the construction of walls and domes.