An extended layer of soil with homogeneous rounded grains has 10% of the material finer than 0.07 mm. The constant to be adopted to determine its permeability has been recommended as 750. What is its permeability?.
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Permbility. K.
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- calculate the suitability number and comment it as backfill material for soil having following grain sizes D10=0.10mm,D20=0.32mm,D50=1.99mmfind the following: a. What is the value of the percent passing for sieve with 2 mm. opening in percentage? b. What is the value of the percent passing for sieve with 150 μm. opening in percentage? c. What is the value of the Effective Size of soil in mm.? d. What is the value of the coefficient of gradation?e.What is the value of the coefficient of uniformity? f. What are the percentages of gravel, sand, and Fines using the limits indicated by USCS? g. What are the percentages of gravel, sand, silt and clay using the limits indicated by MIT? h. What are the percentages of gravel, sand, silt and clay using the limits indicated by AASHTO? i. What are the percentages of gravel, sand, silt and clay using the limits indicated by USDA?Soil is compacted at the construction site, so the void ratio changes (gets denser) from 0.80 to 0.50. Specific gravity of solids is 2.70. **(Vs VT / 1+e) VT = 1 What is the increase in the dry unit weight of the soil?
- An ASTM D 854 test was done on a sand. The data are shown below. Calculate the specific gravity. Mass of pychnometer = 46.1 grams Mass of pychnometer and dry soil = 67.4 grams Mass of pychnometer, dry soil and water = 157.7 grams Mass of pychnometer and water = 140.9 grams11. The range of water content between the liquid and plastic limits is termed as: A. liquid limit B. plasticity index C. plastic limit D. shrinkage limit 12. A container of volume 3.25 x 10-3 m³ weighs 10.8 N. Dry sand was poured to fill the container. The container and the sand weigh 62.5 N. Calculate the porosity of the sand. Assume Gs = 2.72. A. 67.74% C. 43.56% B. 40.38% 0 mod D. 54.25%2. The soil sample in a test has a diameter of 5 cm and a height of 15 cm, the test is carried out for 10 seconds and the water level is 20 cm, the water flowing through the sample is measured as much as 50 cm3. What is the permeability of the soil? k₂ 9z Ai QL tAh (USE THIS FORMULA)
- A compacted cylindrical specimen 45 mm dia and 100 mm long is to be prepared from dry soil. If the specimen is required to have a water content of 18% and the percentage of air voids is also 18%, then what is the weight of dry soil and weight of water required respectively in the preparation of soil? [Specific gravity of soil =b. A soil layer with a moisture content of 10 percent and a unit weight of 16.5 KN per cubic meter has a decrease in volume by 10 percent after compaction. Find the dry specific weight of the soil. Please solve question (b) I have the answer of Question (a)if you need information please use the question a. given data: a. The moisture content of the soil specimen is 20%, and the total weight is 300 gr. Calculate thevoid ratio and degree of saturation if the total volume was 180 cm3. (Gs = 2.5)A cylindrical mould of 10 cm internal diameter and 11.7 cm height weighs 1894 grams. The mould was filled up with dry soil, first at its loosest state and then at the densest state, and was found to weigh 3273 grams and 3538 grams respectively. if the natural soil existing at the field be submerged below the ground water table and has a water content of 23 %, determine the relative density of the soil. Given, G = 2.65. 12.
- A sample of soft saturated clay weighs 345 grams and has a volume of 195cc. After oven drying, the soil weighs 215 grams. Calculate the values of saturated unit weight, void ratio and specific gravity.The plastic limit and liquid limit of a soil are 30% and 42% respectively. The percentage volume change from the liquid limit to dry state is 35% of the dry volume. Similarly, the percentage volume change from the plastic limit to the dry state is 22% of the dry volume. Determine the shrinkage limit.Pampanga sand with G, = 2.51 is mixed 26% by weight of water and compacted to produce a cylindrical %3D sample of 48 mm diameter and 96 mm long with 7% air porosity. Calculate the mass that will be required and the void ratio of the sample.