The granulometer curves of soils A, B and C are given below. Liquid limit value of floor A is 62%, plastic limit value is 42%; The liquid limit value of the B floor is 56%, the plastic limit value is 30%; The liquid limit value of the C floor was determined as 38% and the plastic limit value was determined as 18%. a) Determine the clay, silt, sand and gravel contents of soils A, B and C. Calculate the curvature and uniformity coefficients of the C floor. b) Determine the USCS (Unified soil classification system) soil classes of A, B and C soils. 20 61 grain diameter (mm) by weight (%)

The granulometer curves of soils A, B and C are given below. Liquid limit value of floor A is 62%, plastic limit value is 42%; The liquid limit value of the B floor is 56%, the plastic limit value is 30%; The liquid limit value of the C floor was determined as 38% and the plastic limit value was determined as 18%. a) Determine the clay, silt, sand and gravel contents of soils A, B and C. Calculate the curvature and uniformity coefficients of the C floor. b) Determine the USCS (Unified soil classification system) soil classes of A, B and C soils. 20 61 grain diameter (mm) by weight (%)

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter4: Soil Classification

Section: Chapter Questions

Problem 4.1P: State whether the following are true or false. a. In the AASHTO classification Table 4.1, the soils...

See similar textbooks

Similar questions

State whether the following are true or false. a. In the AASHTO classification Table 4.1, the soils that are more suitable for roadwork are located on the left than right. b. In AASHTO classification system, the better performing fine grained soils are the ones with lower group indices. c. In AASHTO classification system, sands are classified as grains with 0.075-4.75 mm diameter. d. The USCS symbol for clayey gravel is CG. e. A soil with USCS symbol SM is sandy silt.
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
Assess the suitability of the following soils A, B, C, and D as backfill material invibroflotation. Soil A Soil B Soil C Soil D D10 (mm) 0.2 0.08 0.01 1.1 D20 (mm) 0.6 0.13 0.05 1.9 D50 (mm) 1.5 0.45 0.15 6.0 To which soil groups do these four soils possibly belong?
For the data below, classify the soils according to USCS
The following data for soils A and B are as follows: NOTE: PI=5% for Soil A (Solution are required) a.) Determine the classification of Soil A using USCS _____ b.) Determine the classification of Soil B Using AASHTO _____
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?
The values of liquid limit and plasticity index for soils having common geological origin in a restricted locality usually define (A) a zone above A-line. (B) a straight line parallel to A-line. (C) a straight line perpendicular to A line. (D) points may be anywhere in the plasticity chart.
Classify the soil using USCS for the data given: Sieve Size 4.75 mm, weight retained 20 g; Sieve Size 0.075 mm, weight retained 730 g; 1000 g of soil was used. LL=40 and PL= 18. What is the classification of soil. a. SM b. SC c. SC-SM d. GC
Following details regarding the particle size distribution and other index properties pertinent to the classification of soil. Choose three soils and classify each soil according to USCS and AASHTO classification systems. When necessary, assume Cu = 4.48 and Cc = 1.22.
The sieve analysis data for a granular soil are given below. % passing or finer 19 mm sieve = 100%% passing or finer 4.75 mm (4 sieve) = 61%% passing or finer 0.075mm (200 sieve) = 16% What are the percentages of gravels, sands and fines within this soil, based on the Unified Soil Classification System?
The following two gradation curves are for two types of soils. Classify the two soils according to AASHTO and Modified Systems
True or False: Most soils have indistinguishable colorand texture. ___________