An embankment is to be constructed using sandy clay compacted to dry unit weight of 18 kN/m. The sandy clay has to be transported to the site from a borrow pit. The bulk unit weight of the sandy clay in the borrow pit is 16 kN/m and its natural water content is 11%. Calculate the volume of sandy clay from the borrow pit required for 1 cubic metre of finished embankment. Assume that the soil swells by 10% due to excavation and during transportation. You can take Gs = 2.7.