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The theory of formation of __________ is based on the phenomenon of the formation of voids.

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The theory of formation of __________ is based on the phenomenon of the formation of voids.

(a) Concrete

(b) Cement

(c) Water-cement

(d) Slurry

The question was posed to me during an interview for a job.

Query is from Cement Concrete Construction in division Cement Concrete Construction of Construction & Building Materials

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Correct option is (a) Concrete

For explanation I would say: In this theory, when coarse aggregate is placed, voids are formed. When fine aggregates i.e. sand is added, it occupies these voids. Further, when finely powdered cement is added, it occupies the voids of sand particles.

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