help asap please. homework almost due Dry unit weight (kN/m³)20.019.519.018.518.017.517.016.502468water content (%)Ya = 19.7kN/m³, w = 8.4%2- the range of acceptable water content [Select]1012based on the compaction curve shown, If the specification calls for a 94% relative compaction in the field, what would be the field drydensity and the range of acceptable water content?1- the field dry density [Select]✓kN/m314

In the given graph,we have the values of Maximum dry density (Optimum moisture content Relative…

Dry unit weight (kN/m³) 20.0 19.5 19.0 18.5 18.0 17.5 17.0 16.5 0 2 4 1- the field dry density 6 water content (%) 8 [Select] Ya = 19.7kN/m³,w = 8.4% 2- the range of acceptable water content [Select] 10 based on the compaction curve shown, If the specification calls for a 94% relative compaction in the field, what would be the field dry density and the range of acceptable water content? 12 kN/m3 14

Dry unit weight (kN/m³) 20.0 19.5 19.0 18.5 18.0 17.5 17.0 16.5 0 2 4 1- the field dry density 6 water content (%) 8 [Select] Ya = 19.7kN/m³,w = 8.4% 2- the range of acceptable water content [Select] 10 based on the compaction curve shown, If the specification calls for a 94% relative compaction in the field, what would be the field dry density and the range of acceptable water content? 12 kN/m3 14

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter6: Soil Compaction

Section: Chapter Questions

Problem 6.16P

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Using Unified Soil Classification System, determine the following: (a) Coefficient of Gradation (b) Group Symbol. Passing No. 4 = 47 % Passing No. 200 = 10 % D10 = 3.45 mm %3! D30 = 6.29 mm De0 = 13.72 mm Plasticity for the minus No. 40 fraction: Liquid Limit = 28 % Plastic Limit = 17 % O GC-GM GP-GC O GC O Coef. Of Gradation = 0.84 O GP O Coef. Of Gradation = 3.97
Bulk Unit Weight (kN/m3) 20.0 20.7 21.7 21.4 21.1 Water Content (%) 8.0 9.5 11.5 12.5 13.5 1. Determine dry unit weight and water content at 95% standard compaction based on the result of a standard compaction test given 2. Describe effect of water content during compaction between 9.5% water content to 12.5% water content
25. Refer to Figure 7.16. What would 90% of the maxi- mum dry density equal for this curve? If the speci fications require 95% of standard Proctor density and within +2% of the optimum water content, what range of values would be acceptable for this test?
Q3. (a) The following results are obtained from a Standard Proctor compaction test: Mass of soil (kg) Moisture content (%) 1.791 8.4 1.937 10.6 2.038 12.9 2.050 14.4 2.022 16.6 1.985 18.6 The specific gravity of the solids is 2.70, pw= 1000kg/m' and the volume of the compaction mould is 0.945 x 10° m'. Plot the compaction curve and obtain the maximum dry density (MDD) and optimum moisture content (OMC).
What is the 95% maximum dry density from the laboratory (Please answer in two decimal places in Mg/m3)? (You may do a simple sketching to assist your answer). Please answer value only | Ya(Mg/m³) w % 1.62 1.66 1.72 1.70 1.63 1.57 12.4 13.3 15.5 17.4 18.3 20.1 Laboratory compaction tests results of a soil fill compacted Site A are: Table A
Table 1 below is the result of compaction results. Please evaluate the correct combination of missing data. Table 1: Compaction test results Water content (%) 8.00 III IV Bulk Density II 2.35 2.09 (Mg/m³) Dry Density (Mg/m³) 1.89 2.08 1.76 || A B Answer A B с D I 5.00 1.87 I 1.68Mg/m³ 1780kg/m³ 1.80Mg/m³ 1.78Mg/m³ 2.04Mg/m³ 2.08Mg/m³ 2080kg/m³ 2040kg/m³ III 13% 11% 12% 13% 16.00 2.20 1.90 IV 19% 20% 19% 19%
Mass of soil (kg) Moisture content (%) 1.791 8.4 1.937 10.6 2.038 12.9 2.050 14.4 2.022 16.6 1.985 18.6 The specific gravity of the solids is 2.70, pw= 1000kg/m³ and the volume the compaction mould is 0.945 x 10³m³. Plot the compaction curve and obta the maximum dry density (MDD) and optimum moisture content (OMC).
A modified Proctor compaction test was carried out using a cylindrical moldwith a 1000 ml volume. Table 2 summarizes the results. a. Plot the compaction and ZAV curves (RD=2.75 and ρwater=1000 kg/m3)b. Determine the maximum dry density and the optimum moisture content Table 2 Moisture Content (%)Mass of WetSample (g)10.5 2033.211.8 2146.613.0 2203.514.9 2183.116.4 2147.617.6 2116.8
Need complete solution. Need fast! The maximum and minimum dry densities of a sand were determined in the laboratory to be 1509 kg/m3 and 1673 kg/m3, respectively. In the field, if the relative density of compaction of the same sand is 86.83%, what is the relative compaction (in percent)? Round off to two decimal places.
Table 1 Results of compaction test Run No 1 3 4 Mass of sample and cylinder (g) Mass of cylinder (g) 6022 6052 6102 6074 6015 4200 4200 4200 4200 4200 Can No 12 08 F3 F4 F5 Tare mass (g) 31.12 31.04 31.31 30.83 31.53 Wet mass gross (g) Dry mass gross (g) 80.17 97.9 93.68 84.28 108.81 79.07 95.71 89.93 79.91 101.29 Table 1 shows the results of compaction test on soil sample. (2) Calculate water content and dry density in each run (3) Plot the dry density-water content curve and zero air void line. (4) Determine the maximum dry density and optimum water content.
Results of a standard Proctor compaction test on a silty sand are shown in the below figure. Dry unit weight (kN/m³) 19.5 19.0 18.5 18.0 6 17.5 17.0 5-17 7-12 8-11 a. What is the moist unit weight (ywet, kN/m3) at optimum moisture content? b. What is the degree of saturation (Sr, %) at optimum moisture content? Given: Gs = 2.73. c. If the required field dry unit weight (yd) is 18.15 kN/m3, what is the relative compaction (%)? 6. What should be the range of compaction moisture contents (%) in the field to achieve the above relative compaction? 10 0 6-14 5 9.5-10.5 10 Moisture content (%) 15 20 7. If the minimum and maximum void ratios are 0.29 and 0.80, respectively, what is the relative density of compaction in the field (%)?
From the following data, solve for the degree of compaction. If this is for Item 201, Aggregate Base Course, will it pass the specification? Field density test data: Weight of material taken from hole, kg. = Weight of sand to fill hole, kg. = 5.585 3.935 Volume of hole, cu.m = Wet unit weight, kg/cu.m = Dry unit weight, kg/cu.m = 0.0028 1995 1734 Laboratory Data: Maximum dry density, kg/cu.m. = 1750 Optimum Moisture Content, % = 8.00