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For the data in Fig. 5.1: (a) Estimate the maximum dry density and optimum water content...
Compaction test Determine the degree of saturation and the air voids at maximum dry density. Discuss the reasons for t...
Compaction test
Determine the degree of saturation and the air voids at maximum dry density. Discuss the reasons for the shape of the graph of dry density versus water content Determine the compaction energy of the standard Proctor test. Discuss what effect would have on the maximum dry density and optimum water content, and the degree of saturation and air voids at maximum dry density if modified Proctor compaction test is conducted. . mass of wet sample 106.49 98.45 105.37...
Compaction 1. Why do we compact soils to 90 or 95% Standard Proctor (.e. maximum dry...
Compaction 1. Why do we compact soils to 90 or 95% Standard Proctor (.e. maximum dry unit weight) instead of 100% Standard Proctor? 2. At what saturation is the theoretical minimum void ratio achieved? 3. The following data were determined from a compaction test for a soil with a specific gravity of solids = 2.65 Water content Total Unit Weight (lb/ft) 10 98 106 119 125 128 124 119 (%) Graph the compaction curve (dry unit weight versus water content),...
Two compaction tests, a standard Proctor test and a modified Proctor test, were performed on a...
Two compaction tests, a standard Proctor test and a modified Proctor test, were performed on a particular soil. Label which curve corresponds to which test. Label the maximum dry density and optimum water content for the higher curve. Derive an expression for the Zero Air Voids (ZAV) line shown in the figure below. The form of the line should be ya - f(w,Gs) ZAV (S-100%) Yd
For the compaction curve shown below, the optimum water content and the maximum dry density are:...
For the compaction curve shown below, the optimum water content and the maximum dry density are: 2.2 2.1 1.9 1.8 1.7 1.6 10 15 20 25 (a) 1.78% and 15.5 kN/m, respectively (b) 15.5 % and 1.78 gm/cm', respectively (c) 15.5 % and 1.78 kN/m, respectively (d) 1.78% and 15.5 gm/cm, respectively
You are a field engineer for a construction services testing firm. Your current job assignment is to evaluate fill place...
You are a field engineer for a construction services
testing firm. Your current job assignment is
to evaluate fill placement for a new roadway being constructed in
Tg, Lumpur, Pahang. The
project specifications for the roadway require fill compaction to
98% of the ASTM D1557
compaction test results. Your lab manager sends you the results of
the Standard and Modified
Proctor compaction testing on the fill being placed. These results
are presented in Figure 2. Your
field compaction test results...
The following data were obtained from a Proctor test: 12 13 19 Water content (%) Weight...
The following data were obtained from a Proctor test: 12 13 19 Water content (%) Weight of wet sample (N) 14 18.7 16 19.3 17 18 18.9 The volume of the mold was 9.44 x 10-4m3. (a) Determine the optimum water content and maximum dry unit weight. (b) Plot the zero air voids line. (c) Determine the degree of saturation at the maximum dry unit weight.
1. In compaction tests, the following data were collected: Bulk density, p (Mg/m) 1.85 2.01 2.12...
1. In compaction tests, the following data were collected: Bulk density, p (Mg/m) 1.85 2.01 2.12 2.19 2.15 2.02 Water content, w (%) 11 14 17 19 a) Draw the graph of dry density against water content and draw the maximum dry density and the optimum moisture content. b) On the same axes, draw the 'zero air voids' line and 5 per cent air void line hence determine the air voids content at the maximum dry density. c) Under field...
The following results were obtained from standard Proctor compaction tests. Test ID Mass of moist soil...
The following results were obtained from standard Proctor compaction tests. Test ID Mass of moist soil (kg) 1 1.633 Standard Proctor Test 2 . 1.841 1.907 1.822 1.756 Moisture Content Test 14 14 Mass of tin empty (g) Mass of tin + wet sample (g) Mass of tin + dry sample (g) 98 62 878280 (a) Calculate moisture content (w) and dry unit weight (ya) for standard Proctor compaction tests. Plot moisture content (w) vs. dry unit weight (yd). Given:...
CE 366 Introduction to Soil Engineering Extra Credit Homework #3 Due 30 November 2018 1. Classify...
CE 366 Introduction to Soil Engineering Extra Credit Homework #3 Due 30 November 2018 1. Classify Soils A C, E using the Unied Soil Classification Systerm #200 0.075mm 3 in 76.2mm 4.75 mm 100 90 面70 50 40 30 20 10 0.001 0.01 0.1 10 100 Grain Size (mm) Soil A -Soil B -Sol C -Sol D -Sol E Soil A 13 Soil B 35 2. Laboratory compaction data is provided below for a soil with a specific gravity of...
Soil Mechanics Problem 2 (26 points) Results from a standard Proctor compaction test yield an Optimum...
Soil Mechanics
Problem 2 (26 points) Results from a standard Proctor compaction test yield an Optimum Moisture Content (OMC) of 12% and a maximum dry unit weight of 18.1 kN/m. Given this information, address the following questions. a) The soil was used to construct an embankment on a construction site. A sand cone test indicated that a layer of the compacted fill had a total unit weight of 19.8 kN/m3 and a moisture content of 11%. Specifications call for the...
Compaction test
Determine the degree of saturation and the air voids at maximum dry density. Discuss the reasons for the shape of the graph of dry density versus water content Determine the compaction energy of the standard Proctor test. Discuss what effect would have on the maximum dry density and optimum water content, and the degree of saturation and air voids at maximum dry density if modified Proctor compaction test is conducted. . mass of wet sample 106.49 98.45 105.37...
Compaction 1. Why do we compact soils to 90 or 95% Standard Proctor (.e. maximum dry unit weight) instead of 100% Standard Proctor? 2. At what saturation is the theoretical minimum void ratio achieved? 3. The following data were determined from a compaction test for a soil with a specific gravity of solids = 2.65 Water content Total Unit Weight (lb/ft) 10 98 106 119 125 128 124 119 (%) Graph the compaction curve (dry unit weight versus water content),...
Two compaction tests, a standard Proctor test and a modified Proctor test, were performed on a particular soil. Label which curve corresponds to which test. Label the maximum dry density and optimum water content for the higher curve. Derive an expression for the Zero Air Voids (ZAV) line shown in the figure below. The form of the line should be ya - f(w,Gs) ZAV (S-100%) Yd
For the compaction curve shown below, the optimum water content and the maximum dry density are: 2.2 2.1 1.9 1.8 1.7 1.6 10 15 20 25 (a) 1.78% and 15.5 kN/m, respectively (b) 15.5 % and 1.78 gm/cm', respectively (c) 15.5 % and 1.78 kN/m, respectively (d) 1.78% and 15.5 gm/cm, respectively
You are a field engineer for a construction services
testing firm. Your current job assignment is
to evaluate fill placement for a new roadway being constructed in
Tg, Lumpur, Pahang. The
project specifications for the roadway require fill compaction to
98% of the ASTM D1557
compaction test results. Your lab manager sends you the results of
the Standard and Modified
Proctor compaction testing on the fill being placed. These results
are presented in Figure 2. Your
field compaction test results...
The following data were obtained from a Proctor test: 12 13 19 Water content (%) Weight of wet sample (N) 14 18.7 16 19.3 17 18 18.9 The volume of the mold was 9.44 x 10-4m3. (a) Determine the optimum water content and maximum dry unit weight. (b) Plot the zero air voids line. (c) Determine the degree of saturation at the maximum dry unit weight.
1. In compaction tests, the following data were collected: Bulk density, p (Mg/m) 1.85 2.01 2.12 2.19 2.15 2.02 Water content, w (%) 11 14 17 19 a) Draw the graph of dry density against water content and draw the maximum dry density and the optimum moisture content. b) On the same axes, draw the 'zero air voids' line and 5 per cent air void line hence determine the air voids content at the maximum dry density. c) Under field...
The following results were obtained from standard Proctor compaction tests. Test ID Mass of moist soil (kg) 1 1.633 Standard Proctor Test 2 . 1.841 1.907 1.822 1.756 Moisture Content Test 14 14 Mass of tin empty (g) Mass of tin + wet sample (g) Mass of tin + dry sample (g) 98 62 878280 (a) Calculate moisture content (w) and dry unit weight (ya) for standard Proctor compaction tests. Plot moisture content (w) vs. dry unit weight (yd). Given:...
CE 366 Introduction to Soil Engineering Extra Credit Homework #3 Due 30 November 2018 1. Classify Soils A C, E using the Unied Soil Classification Systerm #200 0.075mm 3 in 76.2mm 4.75 mm 100 90 面70 50 40 30 20 10 0.001 0.01 0.1 10 100 Grain Size (mm) Soil A -Soil B -Sol C -Sol D -Sol E Soil A 13 Soil B 35 2. Laboratory compaction data is provided below for a soil with a specific gravity of...
Soil Mechanics
Problem 2 (26 points) Results from a standard Proctor compaction test yield an Optimum Moisture Content (OMC) of 12% and a maximum dry unit weight of 18.1 kN/m. Given this information, address the following questions. a) The soil was used to construct an embankment on a construction site. A sand cone test indicated that a layer of the compacted fill had a total unit weight of 19.8 kN/m3 and a moisture content of 11%. Specifications call for the...
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