Q-4 The following two gradation curves are for two types of soils. Classify the two soils according to AASHTO and Modified Systems (3) U.S. Stándard sieve size No. 40 3 in. in. No. 4 No. 10 No. 200 100 90 80 70 60 50 40 30 20 10 100 10 1.0 0.1 0.01 0.001 Grain size (mm) GRAVEL SAND COBBLES SILT OR CLAY Coarse Fine Coarse Medium Fine Curve 1: Clayey sand; LL=23, PI=10. Poorly graded mixture of sand-clay and fine silty sand. Curve 2: Limerock and sand mixture; LL=23, PI=8. Poorly graded. Percent finer by weight (or massi

Q-4 The following two gradation curves are for two types of soils. Classify the two soils according to AASHTO and Modified Systems (3) U.S. Stándard sieve size No. 40 3 in. in. No. 4 No. 10 No. 200 100 90 80 70 60 50 40 30 20 10 100 10 1.0 0.1 0.01 0.001 Grain size (mm) GRAVEL SAND COBBLES SILT OR CLAY Coarse Fine Coarse Medium Fine Curve 1: Clayey sand; LL=23, PI=10. Poorly graded mixture of sand-clay and fine silty sand. Curve 2: Limerock and sand mixture; LL=23, PI=8. Poorly graded. Percent finer by weight (or massi

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Q 03: (a) Draw graph (using graph paper or excel) for soil 1 and 2 given in problem 2 and paste it in the following?(b) Calculate D10 D30 and D60 for Sieve Analysis plot in section (a) and calculate Coefficient of Uniformity and Coefficient of curvature for both soils. Also comment if the soils are well graded or poorly graded and which soil is better graded in comparing to other in case of soil 1 and 2.
1. Classify the following soils using USCS givegroup symbol and group name.a) A 55% of soil sample retained in sieve no. 4and 89% retained on sieve no. 200. The soilsample has a liquid limit = 28% and plasticLimit = 18% Cu = 4.2, Cc = 1.4 2. A saturated soil has the followingcharacteristics:Initial Volume = 25 cm3Final Volume = 16 cm3Mass of wet soil = 45 gMass of dry soil = 31 ga) Determine the Shrinkage Limitb) Determine the Shrinkage Ratioc) Determine the Specific Gravity of the soil
For a soil, given e= 0.75, w= 22%, Gs= 2.66, calculate the dry density of soil in slug/ft3. Note ρ of water= 1.94 slug/ft3 a. 3.8 b. 2.95 c. 3.6 d. 2.85 With fbd if necessary
1. Why Stokes Law only applies if the grain diameter is between 0.0002 mmup to 0.2mm?2. How to get the corrected meniscus value?3. In the sieve analysis practicum, why should the soil from the hydrometer experiment be filtered?first with filter no. 200 ASTM?
The following soil as specified by the AASHTO System has the following results:Percent finer than No. 10 sieve . . . . . . . . . . . . . 90Percent finer than No. 40 sieve . . . . . . . . . . . . . . 76Percent finer than No. 200 sieve . . . . . . . . . . .. . 34Liquid limit = 37Plasticity index = 12Calculate the partial group index for the soil that belongs to groups A-2-6.
geotechnical 2.1. Classify the following Soils using the SUCS Unified System: a) Retained in mesh No.4 = 10%Passes No.4 and is retained at mesh No.200 = 60%Cu = 4; dc = 2Fine Fraction: LL = 40%; LP = 25% b) Retained in mesh No.200 = 20%Pass mesh No.4 = 92% of the total sampleCu = 4; DC = 1.5Fine Fraction: LL = 250%; LP = 150%There is no appreciable content of organic matter.
Q2/ For proposed Earth Dam fill, the soil will be compact to (95%) of standard proctor dry density. The test of borrow area indicate that (ydmax = 18 kN/m3) at optimum moisture content (11%). The soil of borrow area at natural condition has (e = 0.65) and (Gs = 2.68). Determine the minimum volume ofborrowrequired to make (600,000 m3 ) of acceptable compacted fill.
Afine-grainedsoilisfoundtohavealiquidlimitof70%andaplasticlimitof38%. (a) On the plasticity chart for the Unified Soil Classification System, what soil type is this?(b) On the plasticity chart for the AASHTO classification system, what soil type is this?
Calculate % Silt using the following values; a. Weight of soil= 50 g b. HR reading at 40 sec.= 25 c. Temp at 40 sec= 25 oCd. HR at 2 hrs= 16 e. Temp at 2 hrs= 26 * A. 17.28 B. 17.25 C 17.22 D. 17.19
A soil sample has 98% passing the No. 4 sieve and 74% passing the No. 200 sleve. The LL for the soils 58% and the PI is 30%. Classify the soil according to the USCS. Show step by step solutions.
Laboratory tests performed on a saturated alluvial subgrade soil gave the following information: In situ water content = 11.9%, Specific gravity = 2.65, Soil size distribution: D100 = 51 mm, D75 = 30 mm, D60 = 20 mm, D45 = 15 mm, D30 = 8 mm, D10 = 4.76 mm, D8 = 2 mm, D4 = 0.08 mm, < 2 m = 4% a. Is this soil well graded? Classify it by the AASHTO and Unified systems b. Using the sieve analysis soil data and the classification systems, estimate for a total of 100% the approximate percentages of coarse aggregate (gravel), fine aggregate (sand), silts, and clays?
Classify the soil according to the soil classification system AASHTO: With the following data: Percentage passing: sieve No. 200 = 45% sieve No. 40 = 10% sieve No. 10 = 45% LP = 32 LL = 54