00237708

Component

http://onlinepubs.trb.org...rbbulletin/168/168-004.pdf

THE THERMODYNAMIC EQUILIBRIUM CONDITIONS FOR A WATER-ICE INTERFACE IN A PORE OF A POROUS MEDIUM ARE DERIVED. IT IS FOUND THAT, TAKING THE GEOMETRY AND PHYSICAL DIMENSIONS OF THE PORE INTO CONSIDERATION, A POSITIVE PRESSURE MUST DEVELOP BETWEEN THE ICE AND THE SOLID IN ORDER FOR EQUILIBRIUM TO BE MAINTAINED WHEN THE TEMPERATURE AT THE FREEZING PLANE IS DEPRESSED. A SIMPLE MODEL UTILIZING THIS MECHANISM EXHIBITS THE SAME PROPERTIES AS A FROST-HEAVING SOIL. THE INFLUENCE OF AIR IN THE PORES IS BRIEFLY DISCUSSED. /AUTHOR/

No 168, pp 65-73, 5 FIG, 3 REF 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

01410566

Lawton, Warren L

9p

1957

Highway Research Board Bulletin

Digital/other

Air; Equilibrium (Mechanics); Freezing; Frost heaving soils; Pore water pressures; Pores; Porous materials; Thermodynamics; Water

Pores

Geotechnology; Highways

TRIS, TRB

May 5 1994 12:00AM

• CALCULATION OF MAXIMUM PAVEMENT TEMPERATURES FROM WEATHER REPORTS
• LOSS AND RECOVERY OF BEARING CAPACITY OF 30 NEW JERSEY SOIL MATERIALS AS DETERMINED BY FIELD CBR TESTS 1954-5
• SOIL MOISTURE TENSION AND ICE SEGREGATION
• SOIL MOISTURE TRANSFER IN VAPOR PHASE UPON FREEZING
• STUDY OF SUBSURFACE TEMPERATURE IN SIX SOILS DURING THE WINTER OF 1953-1954 AND DISCUSSION
• TEMPERATURE EFFECTS ON PHASE COMPOSITION AND STRENGTH OF PARTIALLY-FROZEN SOIL
• THE EFFECT OF FREEZING ON A CAPILLARY MENISCUS AND DISCUSSION
• THEORETICAL AND PRACTICAL ASPECTS OF THE THERMAL CONDUCTIVITY OF SOILS AND SIMILAR GRANULAR SYSTEMS