Question

At Optimum water content, soil has _____

(a) minimum density

(b) maximum density

(c) no weight

(d) no density

I had been asked this question during an interview.

My question comes from Compaction Introduction topic in division Compaction of Geotechnical Engineering I

Answer 1

Right option is (b) maximum density

For explanation: In 1933, Proctor showed that for a specific amount of compaction energy applied on the soil, there was a water content termed as Optimum water content at which the soil attains the maximum density.