You are checking a field-compacted layer of soil. The laboratory control curve has the following values:   gd (kN/m3) w (%) 16.34 14 16.57 16 16.65 18 16.50 20 16.26 22 15.87 24   The specification for compaction states that the field-compacted soil must be at least 95% of the maximum control density and within of the optimum moisture for the control curve. You dig a hole 1m3 in the compacted layer and extract a sample that weighs 17.2 kN wet and 14.1 kN dry. (a) What is the compacted gd? The compaction w? The percent compaction? Does the sample meet the specifications? (b) If the specific gravity is 2.68, what is the compacted degree of saturation? If the sample were saturated at constant density, what would be the water content?

Q: Sand cone equipment is used to perform a field density test on a compacted earth fill. Sand is used…

A:

Q: How much water will flow through a soil mass in a 5-minute period when the sample length is 150 mm,…

A: Given: The time period T is 5 min. The sample length is 150 mm. The cross section is 20 mm × 20 mm.…

Q: . Sand cone equipment is used to perform a field density test on a compacted earth fill. Sand is…

A:

Q: 6. The relative compaction of a sand in the field is 93.5%. Given that dry unit weight max = 16.98…

A:

Q: For a falling a head permeability test, the following data were recorded. Length of soil specimen =…

A:

Q: Results from liquid and plastic limit tests conducted on a soil are given below. Liquid limit tests:…

A:

Q: A permeability test was run on a soil sample with 8cm in radius and 10cm long. The level of water at…

A: Given,  Radius of soil sample R = 8 CM Length of soil sample L = 10 CM Permeability of soil k =…

Q: 15. The following are results of a field unit weight determination test using sand cone method:…

A:

Q: The granulometer curves of soils A, B and C are given below. Liquid limit value of floor A is 62%,…

A:

Q: 10. Fall cone penetrometer test has been carried out on a sample of fine grained soil and the…

A: Given, Moisture content(%) Cone Penetration (mm) 50.0 16.1 52.1 17.6 54.1 19.3 57.0…

Q: Q.1 In a falling head permeability test drop in head Occurs from 60 m to 40 m in 10 minutes. The…

A:

Q: According to a proctor test carried out on a soil, the following results were obtained. Draw the…

A: The given values are as folowsThe  ottawa sand density=95.57lb/ft3Mass of the sand in cone…

Q: The laboratory compaction test of a certain type of soil gives a maximum dry density of 1.486 g/cc…

A:

Q: The results of a constant head permeability test for a fine sand are as follows: Diameter of the…

A:

Q: The data from a falling head test is shown. Diameter of standpipe: 6 cm. Initial Head: 90.4 cm.…

A:

Q: SITUATION: It is known that the natural soil at a construction site has a void ratio of 1.0. At the…

A:

Q: LEM 3: The following data were obtained from a field density test on a compacted fill of sandy clay.…

A:

Q: For a given soil, following After compaction of soil in the field, sand cone of tests (control…

A: Following specification required a. γd must be at least 0.95 (γdmax).b. Moisture content, w, should…

Q: Problem: From the following data, solve for the degree of compaction of a road embankment and…

A: To find Degree of compaction of soil,D

Q: The following are the results from the liquid limit tests for a soil: Number of Blows, N Moisture…

A: (a) The flow curve is shown below.

Q: PROBLEM 1 The following data are for a falling-head permeability test: Length of the soil sample =…

A: The given values are as follows,The length of the soli sample(L) =500mThe area of the soil…

Q: A constant head permeability test is performed on soil that is 2 cm x 2 cm square, and 2.5cm long.…

A:

Q: Sand cone equipment is used to perform a field density test on a compacted earth fill. • Soil sample…

A: Given data in question  Weight of soil sample dug out Weight of dried soil sample dug out Weight of…

Q: A Soil sample has a liquidity index of 0.29, a plastic limit of 12.2%., and a plasticity index of…

A:

Q: 41 The data from a falling head test is shown. Diameter of standpipe: 4 cm. Initial Head: 92.9…

A: Determine the final head (in cm.) of the permeability test.

Q: Q1. A (5 point) A clay soil found to have (L. L) at 75%, (P.L) at 45%, and (S.L) at 25%, if a sample…

A:

Q: A soil sample has a void ratio of 0.65, dry unit weight of 14.50 KN/m3, and water content of 8…

A:

Q: Subject :Geotechnical engineering Here's the problem For a soil, suppose that D10=0.08mm,D30=0.22mm…

A: Given data : D10 is the grain diameter corresponding to 10% passing by weight=0.08 mmD30 is the…

Q: The section size of a water pipe is (100cm Χ 100cm), three types of soils A, B, and C are placed in…

A: Permeability is the property of soil due to which flow of fluids takes place in the soil. Seepage…

Q: From a standard Proctor laboratory sample of soil Gs= 2.70; maximum dry unit weight = 16.4 kN/m3;…

A:

Q: 5. The following data are for a falling- head permeability test: • Length of the soil sample = 400…

A: L=400mm A=7854mm2 t=8min h1=450mm h2=200mm

Q: If an area needs to be filled with compacted soil with the following specifications: Dimensions: 45m…

A:

Q: Sand cone equipment is used to perform a field density test on a compacted earth fill. • Soil sample…

A:

Q: From a standard Proctor laboratory sample of soil Gs= 2.70; maximum dry unit weight = 16.4 kN/m3;…

A:

Q: Sand is used in the cone is known to have a bulk density of 15.74 kN/m3 Wet weight=20.601 N Dry…

A:

Q: 9. The following laboratory test results for Casagrande liquid limit test. a. Draw Flow curve for…

A: according to question given in table flow curve for the given soil is drawing in asemilog graphx…

Q: Homework 1-Results from liquid and plastic limit tests conducted on a soil are Moisture given below.…

A: Solution Given Data Number of Blows, N Moisture content,(%) 15 39.2 22 34.5 26 31.2 29…

Q: Given the liquid limit of soil equal to 70% and its plastic limit is 38% What will be the Liquidity…

A:

Q: Gs= 2.70 A.     What is the void ratio of the soil at Dr= 68%? B.     What is the dry unit weight of…

A:

Q: The following are results of a field unit weight determination test using sand cone method: Volume…

A:

Q: Situation 1: For a given soil sample it has a specific gravity of 2.66, void ratio e=0.60is…

A: Specific Gravity = 2.66 Void ratio = 0.6 Unit weight when soil become S = 40 %  Ysat  = [(…

Q: Statement: Constant head permeability test is a laboratory method for determination of permeability…

A: Answer:- Given statement is false. Constant head permeability test is a laboratory method, but this…

Q: Refer to the following data: Dry unit weight of soil in borrow pit Moisture content in borrow pit…

A: The dry density of the borrow pit is γd1=13.67 kN/m3. The moisture content in the borrow pit is…

Q: PROBLEM 4: A soil sample has a maximum dry unit weight of 125 lb/ft?. If the sample has wet unit…

A: Given data, Maximum dry density unit weight γdmax = 125 lb/ft3  Bulk unit weight γb = 135 lb/ft3…

Q: HOMEWORK: Tutorial [1] I The following data were obtained in determining the soil moisture content…

A: Crop water requirement is the amount of water required for the growth of crop and to meet losses…

Q: The laboratory compaction test of a certain type of soil gives a maximum dry density of 1.486 g/cc3…

A:

Q: A block of soil in a permeability test has a length of 120 mm and a cross-sectional area of 600 mm2.…

A: L=120mmA=600mm2Q=Voltime=200090=22.222mm3sv=QA=22.222mm3s600mm2=0.03073mms

Q: The relative compaction of a sand in the field is 94%. Given that dry unit weight max = 16.2 kN/m3…

A:

Q: The moisture content of a soil sample is 17% and the dry unit weight is 16.51 kN/m3. If Gs 2.69,…

A:

Laboratory Determination of Hydraulic Conductivity

Hydraulic conductivity is the measure of flowability of water inside the soil in the presence of a hydraulic gradient. The hydraulic gradient is defined as the difference in the water heads in the soil, which induces a water motion. In simple terms, a hydraulic gradient is the presence of a potential that induces a flow of water.