6.6 The in situ moist unit weight of a soil is 17.3 kN/m³ and the moisture content is 16%. The specific gravity of soil solids is 2.72. This soil is to be excavated and transported to a construction site for use in a compacted fill. If the specification calls for the soil to be compacted to a minimum dry unit weight of 18.1 kN/m³ at the same moisture content of 16%, how many cubic meters of soil from the exca- vation site are needed to produce 2000 m³ of compacted fill? How many 20 ton truckloads are needed to transport the excavated soil?

6.6 The in situ moist unit weight of a soil is 17.3 kN/m³ and the moisture content is 16%. The specific gravity of soil solids is 2.72. This soil is to be excavated and transported to a construction site for use in a compacted fill. If the specification calls for the soil to be compacted to a minimum dry unit weight of 18.1 kN/m³ at the same moisture content of 16%, how many cubic meters of soil from the exca- vation site are needed to produce 2000 m³ of compacted fill? How many 20 ton truckloads are needed to transport the excavated soil?

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Geotechnical Properties Of Soil

Section: Chapter Questions

Problem 2.4P

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The Atterberg limits of of a clay soil are liquid limit = 75 %, Plastic limit = 45 % and shrinkage limit = 25 %. If a sample of this soil has a volume of 30 cm³ at the liquid limit and a volume 16.6 cm³ at the shrinkage limit. Determine the specific gravity of solids.
Give its consistency index. EXERCICE 3 Classify the following soil using the Unified Soil Classification (ASTM standard). Percentage passing N° 4 seive = 98 Percentage passing N° 10 seive = 86 Percentage passing N° 40 seive = 80 Percentage passing N° 200 seive = 71 The liquid limit = 102% The Plasticity index = 68% The water content is = 72%Give its consistency index. Indicate the activity of this soil and numerous some potential problems linked to its use in different geotechnical works. EXERCICE 4 Some tests were performed on the sandy silt according to Standard Proctor test. The volume of the mold is 944 cm. The specific gravity was measured as 2.67 1) Plot the Proctor compaction curve (see the page 2) 2) Find: 2-1 The maximum dry unit weight of sandy-silt fill, 2-2 Its OMC, 2-3 The moisture ranges for 85% of Standard Proctor Optimum, 2-4 The degree of saturation at the optimum Proctor state. 3) Plot the zero air voids curve (see the page 2) 4) Determine the values of degree of…
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PLS. ANSWER ASAP WITH COMPLETE SOLUTION4 DECIMAL PLACES A saturated sample of clay with a shrinkage limit of 22 has a natural water content of 35%.a. What would its dry volume be as a percentage of its original volume if the specific gravity of soil solids is 2.70?b. What would be the void ratio of the soil in its natural water content?c. What is the dry density of the soil sample?
QUIZ 3 1. A sample of clay has a water content of 40 percent at full saturation. Its shnnkage limit is 15 percent. Assuming Gs = 2.70, determine its degree of shrinkage. Comment on the quality of the soil.
Determine the clay-size fraction and the activity index
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2. Prove n-e/(1+e) and e-n/(1-n) based on definitions of void ratio and porosity. 3. Classify the following soils according to the unified soil classification system: group symbols and typical names Soil A B Percent passing U.S. sieve No. 4 No. 10 No. 20 No. 40 No. 60 No. 100 No. 200 95 86 65 52 46 38 25 98 95 88 82 75 65 100 LL PL 38 65 22 58
Question 2 Classify the following soils using the Unified soil classification system. Give the group symbol. No. 4 = 60 No. 200 = 40 LL = 26 PL = 4 A GW-GM В GW-GC c) GP-GM GM-GC
Please answer the following questions ASAP. Thanks
Sand at a borrow pit is determined to have an in-place dry unit weight of 115 pcf. Laboratory tests performed to determine the maximum and minimum unit weights give values of 122 pcf and 102 pcf, respectively. From these data, what is the relative density of the natural soil?
Q2) Classify a soil using USCS from the following information: 75% of the material is retained on the sieve No.200. less than of the percent above and more than 50%, is passing on the sieve No.4. L.L. 35% and P.L.= 29% D10 0.18mm, D30 = 0.88mm, and D60 = 1.12mm d)