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Forensic Engineering Fundamentals
book

Forensic Engineering Fundamentals

by Harold Franck, Darren Franck
December 2012
Beginner to intermediate content levelBeginner to intermediate
487 pages
17h
English
CRC Press
Content preview from Forensic Engineering Fundamentals
70 Forensic Engineering Fundamentals
e plastic limit (PL) is the lowest water content at which a thread of the soil can be
just rolled to a diameter of 1/8 in. without cracking, crumbling, or breaking into pieces.
According to ASTM 424,
PL
weightof water
weightof ovendriedd
100
soil
(3.3)
e plastic index (PI) AASHO T-91 is the numerical dierence between the LL and the PL or
PI LL PL=−
(3.4)
For our example soil samples, we nd
LL = 32 and PL = 16
so that the PI is
PI = 32 16 = 16
For bearing soils the P.I. should not exceed 6, and the L.L. should not exceed 25. is soil
is not capable of supporting footings.
Subsidence
Natural subsidence rarely occurs ...
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Publisher Resources

ISBN: 9781439878392