# Three groups of students from the Geotechnical Engineering class collected soil-aggregate samples for laboratory testing from a recycled aggregate processing plant in Palm Beach County, Florida. Three samples, denoted by Soil A , Soil B , and Soil C , were collected from three locations of the aggregate stockpile, and sieve analyses were conducted (see Figure 2.35). (a) (b) Figure 2.35 (a) Soil-aggregate stockpile; (b) sieve analysis ( Courtesy of Khaled Sobhan, Florida Atlantic University, Boca Raton, Florida ) a. Determine the coefficient of uniformity and the coefficient of gradation for Soils A , B , and C . b. Which one is coarser: Soil A or Soil C ? Justify your answer. c. Although the soils are obtained from the same stockpile, why are the curves so different? ( Hint : Comment on particle segregation and representative field sampling.) d. Determine the percentages of gravel, sand and fines according to Unified Soil Classification System.

### Principles of Geotechnical Enginee...

9th Edition
Braja M. Das + 1 other
Publisher: Cengage Learning
ISBN: 9781305970939

### Principles of Geotechnical Enginee...

9th Edition
Braja M. Das + 1 other
Publisher: Cengage Learning
ISBN: 9781305970939

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Chapter 2, Problem 2.1CTP
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