00237202

Component

http://onlinepubs.trb.org...s/hrr/1966/111/111-003.pdf

AN APPARATUS WHICH MEASURES NEGATIVE PORE PRESSURES DURING DRYING AND WETTING PROCESSES UNDER EXTERNAL LOADS IS DESCRIBED, AND TEST RESULTS ON A HEAVY CLAY AND A SAND ARE PRESENTED. THE PRESENT APPARATUS CONTINUOUSLY MEASURES SUCTIONS UNDER EXTERNAL LOADS /NEGATIVE PORE PRESSURES/ IN A SINGLE OPERATION AND DETERMINES MOISTURE CONTENTS WITHOUT REMOVING THE SOIL SAMPLE FROM THE SUCTION PLATE, THUS AVOIDING INTERFERENCE IN THE CONTACT BETWEEN THE SOIL AND THE PLATE. FOR THE RANGE OF MEASURABLE SUCTION THE APPARATUS PRODUCED A COMPRESSIBILITY FACTOR, EQUAL TO UNITY FOR THE HEAVY CLAY AND EQUAL TO APPROXIMATELY ZERO FOR THE SAND, WHICH AGREES WITH THE BRITISH ROAD RESEARCH LABORATORY /RRL/ WORK. /AUTHOR/

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01410066

pp 24-30

1966

Highway Research Record

Print

Figures (5) ; References (6)

Clay; Compressibility; Dense soils; Drying; Loads; Measuring instruments; Moisture content; Pore pressure; Pressure; Sand; Soil suction; Wetting

External pressure

Geotechnology; Highways

TRIS, TRB

Nov 21 1994 12:00AM

• A NEW EQUATION FOR ELECTROOSMOTIC FLOW AND ITS IMPLICATIONS FOR POROUS MEDIA /WITH DISCUSSION/
• CONTROL OF MOISTURE AND VOLUME CHANGES IN CLAY SUBGRADES BY SUBDRAINAGE
• MODEL EVALUATION OF SOIL FACTORS AFFECTING RIGID PAVEMENT PUMPING