Undisturbed soil sample was collected from the filed in Melbourne in steel tube for laboratory evaluation. The tube has the diameter of 85 mm, length of 170 mm and the moisture weight of 1600 g. If the oven-dried weight was 1200 g and Gs = 2.69, calculate the followings: a) Bulk unit weight (?) in kN/m3 b) Field moisture content (w) c) Void ratio & porosity (e and ⴄ) d) Degree of saturation

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Soil Compaction Test

Soil compaction is the major area of geotechnical engineering. Soil is composed of multiple pores present on its surface, while the soil is mainly composed of gravel, sand, rocks, etc. The arrangement of these rocks and gravels is such that they build up voids (spaces) between them, which allows spaces for the roots of the plants and crops to spread and absorb the required amount of nutrients. Soil compaction is a major problem primarily caused by human activities, micro-organisms, and other multiple factors.