Homework Answers
Answer 15) Option 'd' is correct.
Liquid limit , plastic limit and shrinkage limit all are the atterberg limit. Hence 'all of the above' option is correct.
The Atterberg limits are used to determine the critical water contents of a fine-grained soil. Depending on its water avaliability it may be in form of liquid, plastic and shrinkage or solid limit.
Answer 16) option 'a' is correct.
Effective size of soil particles is denoted by D10.
D10 size of soil particles are usually most effective in size and are well graded. D10 size of soil particles means that 10% percent of the particles are finer in nature and 90% of the particles are coarser in compare of D10.
Hope it does helps!!!
Note: According to HomeworkLib answering guidelines i am allowed to answer only first question. Questions are short so i answered two questions.
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15. Which of the following is an Atterberg limit? Liquid limit Plastic limit Shrinkage limit All...
1) A clay has the following Atterberg limits: Liquid Limit (LL) = 60 Plastic Limit (PL)...
1) A clay has the following Atterberg limits: Liquid Limit (LL) = 60 Plastic Limit (PL) = 40 Shrinkage Limit (SL) = 25 The clay shrinks from 15 cm3 to 9.57 cm3 when the moisture content is decreased from the LL to the SL in the Atterberg tests. What is the clay’s specific gravity (dry)?
Which best describes the Plastic Limit (PL) in the Atterberg Limits? Moisture content where soil changes...
Which best describes the Plastic Limit (PL) in the Atterberg Limits? Moisture content where soil changes from plastic to brittle Moisture content where a semi-solid soil stops shrinking and becomes solid Moisture content where soil first has shear strength Moisture content coinciding with the plasticity index
3. For a given soil, a liquid limit test results are given bellow. Number of blows,...
3. For a given soil, a liquid limit test results are given bellow. Number of blows, N 20 Moisture Content (%) 24.1 22.4 21.7 21.3 29 34 a. Determine the liquid limit (LL) of the soil b. Determine the flow index c. If PI = 6.7, determine the plastic limit (PL) of the soil d. The soil moisture content Win situ = 24.8% calculate the liquidity index of the soil.
11. The condition of the soil at which the plasticity index is equal to 0. a)...
11. The condition of the soil at which the plasticity index is equal to 0. a) Highly plastic Medium plastic Slightly plastic Non-plastic 12. It an Astecksglimits use for scaling the natural water content of soil sample to the limits. It can be the ratio of the difference between the water content and plastic limit and plasticity index a) Group Index b) Activity Index Liquidity Index d) Sensitivity Index 13. Determine the natural moisture content in percent of a soil...
The following table shows the lab results of a grain size analysis and Atterberg limits for...
The following table shows the lab results of a grain size analysis and Atterberg limits for an inorganic soil sample (initial total mass=1029) Assume you measured a liquid limit of 40% and plastic limit of 30% for the sample. Sieve Size/No. Equivalent Sieve Size (mm) Mass Retaining(s) Mass Passing (9) Percent Passing 3" 75 11 50 0 3 19 4.75 20 2 20 15 10 No. 60 5 4 4 4 0.003 2 2 2" 3/4" No. 4 No. 10...
In a liquid limit test on a fine-grained soil, using the Casagrande apparatus, the following results were recorded: Test # 1 2 3 4 Number of blows 50 36 24 15 Container number J11 F12 C20 C2 Wet soil + container 90 92 91 91 Dry soil +
In a liquid limit test on a fine-grained soil, using the Casagrande apparatus, the following results were recorded:Test #1234Number of blows50362415Container numberJ11F12C20C2Wet soil + container90929191Dry soil + container79828387Container mass82.0081.0083.0082.00dry soilmoisture lossMoisture content, w%If the plastic limit on the same soil was found to be 25%, determine the liquid limit and plasticity index of the soil.Fill the table and draw the graph in a blank sheet and upload it in the next box
B. The moist weight of 0.028 m3 of a soil is 52 kg. The moisture content...
B. The moist weight of 0.028 m3 of a soil is 52 kg. The moisture content and the specific gravity of the soil solids are determined in the laboratory to be 11% and 2.7 , respectively. Calculate the following: Moist unit weight (kg/m3) i. Dry unit weight (kg/m3) ii. Void ratio d. Porosity iii. iv. Degree of saturation (%) Volume occupied by water (m3) v. ngle C. For the soil sample in A (above) represent the following on a soil...
Problem 2 (25 points) The sieve analysis of three soils and the liquid and plastic limits...
Problem 2 (25 points) The sieve analysis of three soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Soil C c Sieve analysis - Percent finer No.4 No. 10 No. 40 No. 200 70 65 55 36 7162 4 8 11 Atterberg tests Liquid limit Plastic limit C 33 21 32 16 2 4.8 2.9 (a) Classify Soil 1 by the USCS with the group name. (b) Classify Soil 2...
Problem 1(25%): The moist weight of 0.2 f of a soil is 23 Ib. The moisture...
Problem 1(25%): The moist weight of 0.2 f of a soil is 23 Ib. The moisture content and the specific gravity of the soil solids are determined in the labortory to be 1 1 % and 2.7, respectively. Calculate the following: a. Moist unit weight (Ib/ft3) b. Dry unit weight (lb/f3) c. Void ratio d. Porosity e. Degree ofsaturation (%) 5 f. Volume occupied by water (ft3)
I need help on this Geotechnical Engineering its due today W = V V = W,...
I need help on this Geotechnical Engineering its due
today
W = V V = W, = -- Air Water Solid Figure 3.13 3.4 During a compaction test in the geotechnical laboratory, the students com- pacted a clayey soil into a cylindrical mold 4 in. in diameter and 4.58 in. in height. The compacted soil in the mold weighed 4 lb, and it had a moisture content of 12%. If G = 2.72, determine the following: a. Dry unit weight...
Which best describes the Plastic Limit (PL) in the Atterberg Limits? Moisture content where soil changes from plastic to brittle Moisture content where a semi-solid soil stops shrinking and becomes solid Moisture content where soil first has shear strength Moisture content coinciding with the plasticity index
3. For a given soil, a liquid limit test results are given bellow. Number of blows, N 20 Moisture Content (%) 24.1 22.4 21.7 21.3 29 34 a. Determine the liquid limit (LL) of the soil b. Determine the flow index c. If PI = 6.7, determine the plastic limit (PL) of the soil d. The soil moisture content Win situ = 24.8% calculate the liquidity index of the soil.
11. The condition of the soil at which the plasticity index is equal to 0. a) Highly plastic Medium plastic Slightly plastic Non-plastic 12. It an Astecksglimits use for scaling the natural water content of soil sample to the limits. It can be the ratio of the difference between the water content and plastic limit and plasticity index a) Group Index b) Activity Index Liquidity Index d) Sensitivity Index 13. Determine the natural moisture content in percent of a soil...
The following table shows the lab results of a grain size analysis and Atterberg limits for an inorganic soil sample (initial total mass=1029) Assume you measured a liquid limit of 40% and plastic limit of 30% for the sample. Sieve Size/No. Equivalent Sieve Size (mm) Mass Retaining(s) Mass Passing (9) Percent Passing 3" 75 11 50 0 3 19 4.75 20 2 20 15 10 No. 60 5 4 4 4 0.003 2 2 2" 3/4" No. 4 No. 10...
B. The moist weight of 0.028 m3 of a soil is 52 kg. The moisture content and the specific gravity of the soil solids are determined in the laboratory to be 11% and 2.7 , respectively. Calculate the following: Moist unit weight (kg/m3) i. Dry unit weight (kg/m3) ii. Void ratio d. Porosity iii. iv. Degree of saturation (%) Volume occupied by water (m3) v. ngle C. For the soil sample in A (above) represent the following on a soil...
Problem 2 (25 points) The sieve analysis of three soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Soil C c Sieve analysis - Percent finer No.4 No. 10 No. 40 No. 200 70 65 55 36 7162 4 8 11 Atterberg tests Liquid limit Plastic limit C 33 21 32 16 2 4.8 2.9 (a) Classify Soil 1 by the USCS with the group name. (b) Classify Soil 2...
Problem 1(25%): The moist weight of 0.2 f of a soil is 23 Ib. The moisture content and the specific gravity of the soil solids are determined in the labortory to be 1 1 % and 2.7, respectively. Calculate the following: a. Moist unit weight (Ib/ft3) b. Dry unit weight (lb/f3) c. Void ratio d. Porosity e. Degree ofsaturation (%) 5 f. Volume occupied by water (ft3)
I need help on this Geotechnical Engineering its due
today
W = V V = W, = -- Air Water Solid Figure 3.13 3.4 During a compaction test in the geotechnical laboratory, the students com- pacted a clayey soil into a cylindrical mold 4 in. in diameter and 4.58 in. in height. The compacted soil in the mold weighed 4 lb, and it had a moisture content of 12%. If G = 2.72, determine the following: a. Dry unit weight...
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