00381782

Component

http://onlinepubs.trb.org...s/trr/1983/918/918-003.pdf

https://scholar.google.co...ison&publication_year=1983

Although the boundary conditions are different, soils subjected to freeze-thaw or repeated loading may exhibit changes in structure that can be indirectly identified by the soils stress-strain characteristics. The objective is to use this concept to help explain the differences in strength and deformation observed when soils are conditioned with either freeze-thaw or repeated loading or both. The strength and deformation characteristics are obtained from isotropic, consolidated, undrained triaxial tests on Manchester silt and Elo clay. Four series of tests were performed: (a) unconditioned followed by monotonic loading to failure, (b) conditioned with a single cycle of freeze-thaw before monotonic loading to failure, (c) conditioned with 600 cycles of a repeated load before monotonic loading, and (d) conditioned with a freeze-thaw cycle and repeated loading before monotonic loading to failure. Results show that freeze-thaw or repeated-load conditioning causes a strength increase, but freeze-thaw followed by repeated loading causes a strength decrease when compared with unconditioned soil. The results are explained in terms of changes in structure caused by the various conditioning phases. (Author)

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.

00390407

p. 15-22

1983

Transportation Research Record

62nd Annual Meeting of the Transportation Research Board

030903561

Figures (9) ; References (15) ; Tables (1)

Accelerated tests; Clay; Consolidations; Deformation; Deformation curve; Freezing; Isotropic materials; Repeated loads; Silts; Soil structure; Soils; Strength of materials; Thaw; Triaxial shear tests; Undrained shear tests

Change; Freeze thaw cycles; Soil deformation; Undrained tests

Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB

Mar 30 1984 12:00AM

• A DEVICE FOR EVALUATION OF THAW WEAKENING OF FROST-SUSCEPTIBLE SOIL
• FATIGUE-BASED CRITERIA FOR SEASONAL LOAD LIMIT SELECTION
• MEASUREMENT AND PREDICTION OF FROST PENETRATION IN HIGHWAYS
• PREDICTION OF ROADWAY STRENGTH FROM SOIL PROPERTIES
• SOLAR RADIATION EFFECTS ON FROST ACTION IN SOILS
• THE VAL GAGNE PAVEMENT INSULATION EXPERIMENT