If the void ratio is 40% in saturated soil, then the expansion of the soil will be __________
(a) 5 %
(b) 2.3 %
(c) 3.6 %
(d) 4 %
The question was asked in an international level competition.
My question comes from Frost Action in section Soil Water Effective and Neutral Stresses of Geotechnical Engineering I