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"Out of clutter, find
simplicity; from discord, find harmony; in the middle of difficulty, lies
opportunity." -
Albert Einstein, The Three Rules of Work
Objective
The purpose of this assignment is twofold: first, to measure particle size
characteristics of materials used in our next project, and second,
to become familiar with the ASCE author-date citation system.
You must
hand in the cover sheet for the assignment,
your calculations and plots for Parts 1 and 2, and printout
of your reference page from Part 3.
Part 1: The following are the results of a
sieve analysis:
Sieve Number
|
Mass of soil retained
on each sieve (g) |
Percent retained
on each sieve (%) |
Cumulative percent
retained on each sieve (%) |
Percent
finer (%) |
| 4 |
0 |
|
|
|
| 10 |
41.2 |
|
|
|
| 20 |
55.1 |
|
|
|
| 40 |
80.0 |
|
|
|
| 60 |
91.6 |
|
|
|
| 100 |
60.5 |
|
|
|
| 200 |
35.6 |
|
|
|
| Pan |
21.5 |
|
|
|
Determine (a) the percent finer for each sieve and plot the particle-size distribution
curve; (b) estimate D10, D30,
and D60 from the particle-size distribution curve; (c) the
effective size; (d) the uniformity coefficient, Cu; and (e)
the coefficient of gradation, Cc.
Part 2: For the sieve analysis performed in laboratory
determine: (a) the percent finer for each sieve and plot the particle-size distribution
curve; (b) estimate D10, D30,
and D60 from the particle-size distribution curve; (c) the
effective size; (d) the uniformity coefficient, Cu; and (e)
the coefficient of gradation, Cc. If you could not get data in lab, use the following data for anthracite.
Sieve Number
|
Mass of soil retained
on each sieve (g) |
Percent retained
on each sieve (%) |
Cumulative percent
retained on each sieve (%) |
Percent
finer (%) |
| 4 |
0.1 |
|
|
|
| 8 |
0.3 |
|
|
|
| 16 |
378.9 |
|
|
|
| 30 |
104.9 |
|
|
|
| 50 |
26.4 |
|
|
|
| 100 |
0.2 |
|
|
|
| Pan |
0.2 |
|
|
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Click here for a blank particle-size
distribution plot for these problems.
Part 3:
Follow ASCE citation guidelines (class
slides) to prepare a reference page comprised of the
following sources.
Part 4: Read Chapter 8 in the
Strategies for Creative Problem Solving by Fogler and LeBlanc.
Cover sheet for homework
This website was originally
developed by
Charles Camp for
CIVL
1101.
This site is
Maintained by the
Department of Civil Engineering
at the University of Memphis.
Your comments and questions are welcomed.
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