Question

For same soil, the effect of heavier compaction is in ________

(a) increase in the maximum dry density

(b) decrease in the maximum dry density

(c) decrease in stability

(d) decrease in strength

This question was addressed to me by my school teacher while I was bunking the class.

The above asked question is from Modified Proctor Test and Harvard Miniature Compaction Test topic in division Compaction of Geotechnical Engineering I

Answer 1

The correct answer is (a) increase in the maximum dry density

The best explanation: For same soil, the effect of heavier compaction is in increase in the maximum dry density. Compaction reduces the voids ratio and hence there is decrease in the porosity. Due to this, the dry density of the soil sample is increased.