Which of the following organics will move the fastest with the groundwater? Which will move the slowest? Rank them from 1 (fastest) – 5 (slowest). Show all calculations to justify your answer. Assume the soils in the aquifer have an effective porosity of 0.25, a bulk density of 1.5 kg/L and contain 2% organic carbon. Compound Koc (mL/g) Benzene 83 Toluene 222.6 2,4,-D 39 Chlorobenzene 343 DDT 130,000

5 Problem: For a given inorganic soil, the following are known: Percentage passing No. 4 Sieve... 100 Percentage passing No. 200 sieve.. 77 Liquid limit Plasticity index.... ...... 63 25 70 CH or CL U-b RI40.73(L-20) MH -line OL PIOLL- CL-ML OF ML OH or OL 10 16 20 30 40 50 60 70 80 90 100 Liquid limit Classify the soil by using Unified Sqil Classification System. a) What type of soil is this? b) What is the group symbol of the soil C) What is the group name of the soil?

A silt clay soil has a plastic limit of 25 and a plasticity index of 30. 70 CH 60 CL U-b RI0.73(L 20) MH |-line OL OF CL-ML ML OH or OL 10 16 20 30 $0 60 70 80. Liquid limit 90 100 a. If the natural water content of the soil is 35%, what is the liquidity index? b. What type of soil is this using the USCS. c. What type of soil is this using the AASHTO system?

Classify the soil by IS classification Given:- Liquid limit=22% Plasticity limit=19% Percentage passing through 4.75mm IS sieve=98.5% Percentage passing through 75 micron IS sieve=35% D60=0.22 D30=0.19 D10=0.16

complete solution please. Thank you.

I need the answer as soon as possible

10:58 Refer to the soil in Problem 4.1. www.bartleby.com = bartleby a D Q&A Sign in Engineering / Civil Engineeri. / P./ Refer to the so.. : Refer to the soil in Problem 4.1... Textbook Problem Refer to the soil in Problem 4.1. a. Determine the flow index. b. Determine the liquidity index of the soil if the in situ moisture content is 21%. 4.1 During Atterberg limit tests in the soil mechanics laboratory, the students obtained the following results from a clayey soil. Liquid limit tests: Number of Moisture blows, N content (%) 14 38.4 16 36.5 20 33.1 28 270 Plastic limit tests: Students conducted two trials and found that PL = 17.2% for the first trial and PL = 17.8% for the second trial. a. Draw the flow curve and obtain the liquid limit. b. What is the plasticity index of the soil? Use an average value of PL from the two plastic limit trails.

Question 11 The results of the particle-size analysis of a soil are as follows: Percent passing the No. 10 sieve = 80 • Percent passing the No. 40 sieve = 40 Percent passing the No. 200 sieve = 20 %3D The liquid limit and plasticity index of the minus No. 40 fraction of the soil are 30 and 5, respectively. Classify the soil by the AASHTO system. A A-2-4 B А-2-6 C) A-3 D A-2-5

QA:If the specific gravity of a soil 2.69 and dry unit weight 1.915 gm/cm2, the sample of this soil is dried from its state at plastic limit, the volume change is 25% of its own volume at plastic limit, Similarly, when the same sample is dried from its state of liquid limit, the volume change is 45% of its own volume at liquid limit. determine the plasticity index if the value of liquid limit = 35%. (Soil mechanic)

QA:If the specific gravity of a soil 2.69 and dry unit weight 1.915 gm/cm2, the sample of this soil is dried from its state at plastic limit, the volume change is 25% of its own volume at plastic limit, Similarly, when the same sample is dried from its state of liquid limit, the volume change is 45% of its own volume at liquid limit. determine the plasticity index if the value of liquid limit = 35%.