Phase relationship equation for moisture induced shrink and swell of soils /

air volume relates to the change in water volume differs for

Bibliographic Details
Main Author: Hoffmann, Stacey Bruemmer
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1997.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:air volume relates to the change in water volume differs for
changes in air volume and the changes in water volume during
content changes over the depth of the active zone from local
damage every year. These problems result from differential
databases and soil properties prior to shrink or swell to
decreasing, but the air volume change is limited by the
during soil moisture changes is examined in this study.
Equation for Moisture Induced Shrink and Swell (PREMISS).
Evaluation of laboratory swell and shrinkage test results
Evaluation of laboratory swell test results show that the
Expansive soils are the cause of significant structural
In developing the procedure for using PREMISS, two soil
increasing, and the change in air volume is limited by the
indicates that there is a linear relationship between the
initial volume of air. During shrinkage, the air volume is
initial volume of water. How these volume changes occur
is the shrinkage form. The manner in which the change in
measuring the swell limit of a soil is developed. In the
predict the expected vertical movement beneath foundations.
procedure is developed for using the Phase Relationship
properties were investigated: the swell limit and the
shrink and swell. During swell, the air volume is
shrink and swell. This linear relationship is consistent
shrinkage limit investigation, the Submersion Method
shrinkage limit measured by current ASTM Methods. There are
shrinkage limit test is proposed. This method measures the
shrinkage limit. These limits are the soil moisture contents
swell limit probably does exist, and a procedure for
that correspond with extreme volumetric conditions.
the continuity between the changes in air and water volumes
The equation is based on soil weight-volume relationships and
two forms of PREMISS. One is the swell form, and the other
undisturbed shrinkage limit as opposed to the remolded
volumetric changes in the soil structure. In this study, a
with PREMISS.
within the soil. This equation uses seasonal soil moisture
Item Description:"Major subject: Civil Engineering".
Vita.
Physical Description:xiii, 151 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references.