Question

The finer the material, the more will be increasing volume for a given moisture content and this phenomenon is known as the _____________

(a) Shrinkage of sand

(b) Contraction of sand

(c) Bulking of sand

(d) Expansion of sand

This question was posed to me in an online quiz.

My question comes from Cement Concrete Construction in division Cement Concrete Construction of Construction & Building Materials

Answer 1

Right choice is (c) Bulking of sand

For explanation: When moisture content is increased by adding more water, the sand particles pack near each other and the amount of bulking of sand is decreased. Thus the dry sand and the sand completely flooded with water have practically the same volume.