00471862

Component

http://onlinepubs.trb.org...trr/1986/1089/1089-020.pdf

https://scholar.google.co...anek&publication_year=1986

Preliminary results of a soil-temperature monitoring program beneath asphalt-surfaced forest roads in northwest Montana indicate that the critical spring thaw-weakened period of a pavement structure can, in most cases, be identified by temperature alone. At all monitored locations, thawing below the pavement did not commerce until the average soil temperature above a depth of 36 in., excluding the asphalt mat, had risen to approximately 30 deg. F. Initial subpavement thawing was indicated by temperatures above the freezing point of local soilwater as measured at the asphalt-base course interface. Pavement strength values were equal to or greater than those recorded the previous fall when the depth of thaw had progressed to approximately 48 in. below the asphalt mat in areas underlain by nonplastic soils. This relationship was less clear in plastic soils. Utilizing this soil-temperature monitoring program, road managers have the means to forewarn facility users of the possible imposition of vehicle load restrictions. This program provides accurate idenification of the onset of spring thaw weakening and allows an evaluation of the strength recovery as the critical period wanes.

Publication of this paper sponsored by Committee on Flexible 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

01418818

pp 138-146

1986

Transportation Research Record

0309041090

Print

Figures (7) ; Maps (1) ; Photos (8) ; References (4) ; Tables (3)

Asphalt pavements; Depth; Freezing; Load limits; Monitoring; Seasons; Soils; Strength of materials; Temperature; Thaw

Freeze thaw cycles; Seasonal variations

Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB

Jul 31 1988 12:00AM

• ANALYSIS OF SLOPE FAILURE IN OVERCONSOLIDATED FISSURED RESIDUAL SOILS: A CASE STUDY
• COMPRESSIBILITY OF COMPACTED FILLS EVALUATED BY THE DILATOMETER
• CONSTRUCTION METHODS TO CONTROL EXPANSIVE SOILS IN SOUTH DAKOTA
• CONTROL OF FROST PENETRATION IN ROAD SHOULDERS WITH INSULATION BOARDS
• DEFORMATION ANALYSES OF FLORIDA HIGHWAY SUBGRADE SAND SUBJECTED TO REPEATED LOAD TRIAXIAL TESTS
• DRAINED-STRENGTH PARAMETERS FROM DIRECT SHEAR TESTS FOR SLOPE STABILITY ANALYSES IN OVERCONSOLIDATED FISSURED RESIDUAL SOILS
• DYNAMIC COMPACTION OF LOOSE AND HYDROCOMPACTIBLE SOILS ON INTERSTATE 90, WHITEHALL-CARDWELL, MONTANA
• EXPERIMENTAL ASPECTS OF MERCURY INTRUSION POROSIMETRY
• FACTORS IMPORTANT TO THE DEVELOPMENT OF FROST HEAVE SUSCEPTIBILITY CRITERIA FOR COARSE-GRAINED SOILS
• FLEXURAL FATIGUE STRENGTH OF LIME-LATERITE SOIL MIXTURES
• FROST ACTION PREDICTIVE TECHNIQUES: AN OVERVIEW OF RESEARCH RESULTS
• GENESIS AND DISTRIBUTION OF COLLUVIUM IN BUFFALO CREEK AREA, MARION COUNTY, WEST VIRGINIA
• LOCATING SUBSURFACE GRAVEL WITH THERMAL IMAGERY: PRELIMINARY RESULTS
• MEASUREMENT OF PORE-SIZE DENSITY FUNCTION IN SAND
• PERFORMANCE OF CEMENT-MODIFIED SOILS: A FOLLOW-UP REPORT
• PHYSICAL PROPERTIES OF SOUTHEASTERN WASHINGTON LOESS RELATED TO CUT SLOPE DESIGN
• SATURATION EFFECTS ON CALCAREOUS DESERT SANDS
• THE PRESSUREMETER IN GEOTECHNICAL PRACTICE
• THE SHERMAN LANDSLIDE: A CASE HISTORY
• USE OF ROTATIONAL EROSION DEVICE ON COHESIVE SOILS