Question

Two series of compacting tests were performed in the laboratory on an inorganic clayey soil employing two different levels of compaction energy per unit volume of soil. With regard to the above test, the following two statements are made.

(i) The optimum moisture content is expected to be more for the test with higher energy.

(ii) The maximum dry density is expected to be more for the test with higher energy.

The correct option evaluating the above statement is

• A. Only I is True
• B. Only II is True
• C. Both I and II are True
• D. Neither I nor II is True

Answer 1

The correct option is B Only II is True

Optimum moisture content decreases as the compactive effort (energy) increases, compaction curve shifts to the top and left, however maximum dry density is more for test with higher energy.