Question

Which of the following compounds is not formed during the setting action of the cement?

(a) Tricalcium aluminate

(b) Tricalcium silicate

(c) Dicalcium silicate

(d) Dimagnesium carbonate

I have been asked this question in an interview for job.

I would like to ask this question from Plain and Reinforced in division Miscellaneous Materials, Plain and Reinforced Cement Concrete of Construction & Building Materials

Answer 1

Right answer is (d) Dimagnesium carbonate

To explain: Important compounds that are formed during the setting action of the cement are tricalcium aluminate, tricalcium silicate, dicalcium silicate and tetra-calcium alumino-ferrite. The setting action of the cement persists for a long time.