A standard Proctor test was conducted on a silty clay soil collected from a proposed construction site. The results are shown in the following table. Moisture content (%) Trial no. Mass of moist soil in the mold (g) 1 1689 12.7 2 1752 15.0 1800 17.8 4 1845 20.6 5 1844 23.8 a. Determine the maximum dry density (kg/m³) of compaction and the op- timum moisture content. Given: Mold volume = 943.3 cm³. b. If specification calls for 99% relative compaction in the field, what w be the field dry density and the range of acceptable moisture content?

1. The results of a standard Proctor test are given in the following table. a. Determine the maximum dry unit weight of compaction and the optimum moisture content, given that the Proctor mold volume is 1/30 ft³. b. Determine the void ratio and the degree of saturation at the optimum moisture content given G₁= 2.68. Trial no. 1234567 Weight of moist soil in the mold (lb) 3.92 4.12 4.29 4.37 4.45 4.35 4.20 Moisture content (%) 5.0 7.5 10.0 12.5. 15 17.5 20.0

Q1. 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/m3b) Field moisture content (w)c) Void ratio & porosity (e and ⴄ) d) Degree of saturation (Sr)

VA soil sample has a weight of 0.7 kg and the volume was found to be 3.5 x 10-4 m3 . After drying out the weight was reduced to 0.6 kg. The particle specific gravity test gave 2.6. Determine: a) Moisture content b) Dry density c) Bulk density d) Void ratio e) Porosity f) Sr%.

A Standard Proctor test was performed on a clayey sand soil; the test results are shown below. Find b,c,d,e,f

A standard proctor compaction test performed on a sample of soil having Gs= 2.70 obtained a maximum dry unit weight of 90pcf at OMC. A field compacted sample showed a moisture of 28% and a unit weight of 103.70 pcf. Find: (a) the relative compaction (b) the degree of saturation of the field soil compaction.

In the construction of a road, the compaction specification required was 95% of Proctor maximum dry density at field moisture content within 2% of the optimum moisture content. The maximum dry density and optimum moisture content obtained in the laboratory from the Standard Proctor test were 1.94 gm/cc and 13.5% respectively. A site engineer conducted sand cone test at two locations and obtained the following results. Location No. 1 2 Mass of soil removed (gm) Wet 43.86 37.38 Dry 38.46 32.21 Mass of sand used (gm) 39.51 32.39 The density of sand used was 1.87 gm/cc. Check whether the specification was satisfied or not.

Homework #3 The results of a standard Proctor test are given in the following table. a. Determine the maximum dry unit weight of compaction and the optimum moisture content. Given: mold volume =943.3 cm'. b. Determine the void ratio and the degree of saturation at the optimum moisture content. Given: G, = 2.68. Trial no. Weight of moist soil in the mold (kg) Moisture content (%) 1.78 5.0 1.87 7.5 3 1.95 10.0 4 1.98 12.5 5 2.02 1.97 15 17.5 7 1.90 20.0

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Q6/ A field compaction control test was conducted on a compacted lift. The mass of the material removed from the hole was 1820 g and the volume of the hole was found to be 955 cm'. A small sample of the soil lost 17 g in the drying test and the mass remaining after drying was 94 g. The laboratory control test results are shown in the Figure below. Determine (a) the maximum dry density and the optimum moisture content. (b) Calculate the field dry density and field water content. (c) Find the relative compaction (RC). (d) If end-product specification requires 100% relative compaction and w field = (optimum-3%) to optimum + 1%), determine the acceptability of the field compaction. 1.8 1.7 e 1.6 1.5 12 14 16 18 20 w (%) Pa (Mg/m)