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Title:

EFFECT OF VARIABLE-DRAINAGE FREEZE-THAW TESTS ON POST-THAW SHEAR STRENGTH

Accession Number:

00345289

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309032504

Abstract:

Research is reported that shows that the effect of freeze-thaw on post-thaw shear strength can be determined by observing the effect of freeze-thaw on the preshear effective consolidation and overconsolidation ratio. It is also shown that availability of water is one of the primary factors that controls the preshear conditions in a saturated soil subjected to freeze-thaw. In order to quantify the effect of freeze-thaw on post-thaw strenght, a series of consolidated undrained triaxial tests was conducted on a Manchester silt subjected to drained and undrained conditions during freeze or thaw. Each combination of drained or undrained freeze followed by drained or undrained thaw produced a set of unique and predictable preshear conditions. Based on the results from the variable-drainage freeze-thaw tests, it is concluded that laboratory triaxial tests could be used to study the effect of freeze or thaw on post-thaw shear strength. Specifically, it is shown that (a) freeze-thaw conditions that cause an increase in preshear water content produce a reduction in post-thaw shear strength, (b) freeze-thaw conditions that cause a reduction in preshear water content produce an increase in post-thaw shear strength, and (c) freeze-thaw at constant water content causes a slight reduction in post-thaw shear strength. (Author)

Supplemental Notes:

Publication of this paper sponsored by Committee on Frost Action. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Monograph Accession #:

01411620

Authors:

Alkire, Bernard D

Pagination:

pp 13-18

Publication Date:

1981

Serial:

Transportation Research Record

Issue Number: 809
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

60th Annual Meeting of the Transportation Research Board

Location: Washington District of Columbia, United States
Date: 1981-1-12 to 1981-1-16

ISBN:

0309032504

Media Type:

Print

Features:

Figures (5) ; References (8) ; Tables (2)

Uncontrolled Terms:

Soil consolidation; Undrained tests

Old TRIS Terms:

Subject Areas:

Geotechnology; Highways; Hydraulics and Hydrology; I42: Soil Mechanics

Files:

TRIS, TRB

Created Date:

Jan 29 1982 12:00AM

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