Department
of Earth Science |
Northeastern
Illinois University
INTRODUCTION
TO GEOTECHNICAL ENGINEERING
ESCI
340
Spring,
2007
Daily Objectives
#15
(March 6, 2007)
Dr. Sanders
By the end of
today's class, you should be able to do the following:
* Use the ASTM Visual Manual procedure to investigate and describe the
characteristics of a soil sample (presentation
by Krys and Hossein).
* Explain how to use the hydrometer method to determine the grain size
distribution of the fine portion of a soil sample (presentation by Rob
J and Rob B).
* Review: Explain the
meaning of the term "Fines" as it applies to grain size,
and describe the difference between silt and clay.
* Review: Explain the
difference between soil in a liquid, solid, and
semi-solid state.
* Review: Explain what the Atterberg limits
of a soil tell us.
* Show how to determine the liquid
limit (review), plastic limit,
and plasticity index of a
soil sample in the laboratory.
* Use the USDA texture triangle to classify a soil sample.
© 2007 Laura L. Sanders. Last
updated
March 6, 2007.