00712978

Component

http://onlinepubs.trb.org...trr/1995/1481/1481-005.pdf

https://scholar.google.co...rson&publication_year=1995

A series of cone penetrometer tests was performed on subgrade materials at 18 sites along Arizona highways. At each site, water content and cone penetration data were obtained at two locations, 10 m apart, along the right-wheel path of the right lane and at a third location along the adjacent shoulder. The cone penetration and water-content data indicate pronounced variations in subgrade properties over distances of only a few meters horizontally. Variations in subgrade properties were also significant over small vertical distances. Soil profiles at the 18 test sites contained a wide range of soil types; however, most upper subgrade materials were classified as silts or sands with silty fines. Relationships among soil water content, soil suction, and shear strength are explored, and the effect of highly variable subgrade properties on pavement design is discussed.

This paper appears in Transportation Research Record No. 1481, Environmental Moisture Effects on Transportation Facilities and Nonearth Materials' Thermal Effects on Pavements. 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

01399809

English

p. 35-43

1995

Transportation Research Record

Figures (7) ; References (9) ; Tables (2)

Cone penetrometers; Moisture content; Pavement design; Properties of materials; Shear strength; Silts; Silty sands; Soil suction; Soils; Subgrade (Pavements); Variables

Horizontal; Soil properties; Vertical

Geotechnology; Highways; Materials; Pavements; I42: Soil Mechanics

TRIS, TRB

Oct 10 1995 12:00AM

• CASE STUDY OF INSULATED PAVEMENT IN JACKMAN, MAINE
• CHARACTERIZATION OF SUBGRADE SOILS AT SIMULATED FIELD MOISTURE
• LONG-TERM EVALUATIONS OF INSULATED ROADS AND AIRFIELDS IN ALASKA
• MONITORING OF VERTICAL MOISTURE BARRIERS USING TROXLER SENTRY 200-AP DEVICE
• SUCTION MEASUREMENTS ON COMPACTED TILL SPECIMENS AND INDIRECT FILTER PAPER CALIBRATION TECHNIQUE
• SUCTION STUDY ON COMPACTED CLAY USING THREE MEASUREMENT METHODS
• USE OF ALTERNATIVE MATERIALS IN PAVEMENT FROST PROTECTION: MATERIAL CHARACTERISTICS AND PERFORMANCE MODELING