Volume reduction in the soil during compressibility is due to A. Expul...
Explanation:Volume reduction in the soil during compressibility is a common phenomenon observed in soil mechanics. The following are the reasons for the volume reduction in the soil during compressibility.
Expulsion of air pore
Air pores are the voids in the soil, which are filled with air. During compressibility, the air in the pores is expelled from the soil. This expulsion of air from the soil results in a reduction in the volume of the soil.
Expulsion of water pore
Water pores are the voids in the soil, which are filled with water. During compressibility, the water in the pores is expelled from the soil. This expulsion of water from the soil results in a reduction in the volume of the soil.
Compression of water and solid molecules
During compressibility, the water molecules and solid molecules of the soil are compressed. The compression of these molecules results in a reduction in the volume of the soil.
Change in orientation of molecules
During compressibility, there is a change in the orientation of the molecules of the soil. This change in orientation results in a reduction in the volume of the soil.
Therefore, the correct option is (1) A, B, and C, as all of the above reasons contribute to the volume reduction in the soil during compressibility.