A) Classify the soil with the following properties according to the USCS. % passing Dia (mm) 100 4.0 79.2 91.5 100 0.84 0.42 2.0 58.7 0.149 36.5 0.075 L.L-33% P.L-25%
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- 2.Determine the percentage of Gravel, Sand, Silt, and Clay and determine the value of Cu and Cc for soil: Soil A and Soil C 100 80 60 40 20 O 100- > 0.0001Q2/ Classify the soil with the following properties according to the USCS Dia.(mm) 2.0 0.84 0.42 0.25 0.15 0.075 L.L= 40 P.L= 15 % passing 100 91.5 79.2 60 30 10Classify the following soils by the Unified soil classification system. Give the group na soil Soil 1 2 Sieve analysis (percentage finer) Liquid Plastic No. 4 No. 200 limit limit 98 28.5 33.2 22.6 95 10 30 22 D10 D30 8 D60 0.085 0.12 0.135 Q1)
- Home work 1: 2- Classify the following soil according to USCS U.S. Sieve Mass of soil No. retained on the sieve in g 4 6. 10 0. 20 9.1 40 249.4 60 179.8 100 22.7 200 15.5 4.7 Pan 23.5 Pl: 25, L.L. = 40 %3DMass of soil U.S. sieve no. retained on each sieve (g) 4 6 30.0 10 48.7 20 127.3 40 96.8 60 76.6 100 55.2 200 43.4 Pan 22.0 Determine D10, D30 and D6o for each soil. Calculate the uniformity coefficient and coefficient of gradation Cu and CcSituation 1 A sample of soil has the following grain-size * SOIL CLASSIFICATION characteristics: 100 Percent Passing • TRIANGULAR CLASSIFICATION CHART (by USDA) USDA= U.S. DepaArtment of Agriculture Size (mm) 10 2.000 100 90 0.075 74 20 Procedure: 0.05 60 80 ldentify % of soil components % gravel % sand % slt 0.005 32 30 100% % Passingz.00omm % Passing200omm – %Passing o-o5omm 70 0.002 15. Clay 40 Determine the following: 1. Percentage of silt Classification of the soil using the Triangular 60 % Passing o.osomm % Passing oco2mm Plot the % sand, % sılt, and %clay on ther respective aves on the triangular dhart by projecting lines pependicular to the axes. % Passng o.002mm 0%. %3D % clay 50 2. 50 Silty clay Sàndy clay Classification Chart. 60 40 `Clay loàm Soil Silty clay loam 70 30- Sandy clay loam 3 The point ofintersection of those lines is taken as the appropriate soll classification. 80 20 - Loàm Silty lóam 90 Notes: 10 Loamy Sandy loam soil component Sand sand Silt particle size…
- Q3- Use the soil properties given in Table below and classify the soil according to AASHTO and Textural System. Show all calculations and steps. Size, mm 37 12.5 4.75 0.6 0.3 0.15 0.075 0.008 0.0006 % finer 100 93 84 (50+17 49 45 41 34 | (10+17 4Q3/ Classify the following soils into Unified System: Sieve No Diameter (mm) % Passing Soil A 3/8" 9.5 100 4 4.75 100 25 0.599 100 52 0.295 95 100 0.152 69 200 0.076 56 0.03 43 0.01 40 0.005 38 0.002 31 L.L 55 P.L 25 Knowing that D60=9.5, D10=0.599, D30=2.411Classify 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
- A The results of the particle-size analysis of the soil are as follows: Percent passing No. 10 sieve = 100; Percent passing No. 40 sieve = 80; Percent passing No. 10 sieve = 58. The LL and PI of minus No. 40 fraction of the soil are 30 and 10 respectively. Classify the soil by AASHTO system.Justify your answer. a. A-5 (6) b. A-6 (5) c. A-7-6 (20) d. A-4 (5)Classify a soil with 30% clay, 15% silt, 32% sand, and 23% gravel. 100 90 10 80, 20 30 70, Clay 60 40 50 50 Sandy 40 Clay Sitty Clay 60 Silty Clay Loam SandyClay Loám 30 Çlay Loam 20, 70 80 Loam Sift Loam Sandy Loan bamy San 10 90 Šilty /San 100 90 80 70 60 50 40 30 20 10 100 Percentage by Weight Sand a. Silt Loam b. Sandy Clay Loam c. Sandy Loam O d. Clay Loam Percentage by Weight Silt Percentage by Weight Clay4. The result of sieve analysis of three soils is given. It is required to classify these soils according to the AASHTO Classification system. Sieve No. 4 8 10 20 40 60 100 200 LL PL Diam. (mm) 4.760 2.380 2.000 0.840 0.420 0.250 0.149 0.074 SIEVE ANALYSIS Soll A 85 80 68 62 52 48 38 25 42 33 Percent Passing Soil B 98 90 85 78 62 55 50 45 45 37 Soil C 100 95 88 75 60 52 40 34 38 18