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Title:

INDIANA'S THERMALLY INSULATED TEST ROAD

Accession Number:

00238146

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309021588

Abstract:

DATA PRESENTED SHOW THAT SMALL THICKNESSES OF FOAM PLASTIC INSULATION PREVENTED FROST PENETRATION INTO A HIGHWAY SUBGRADE IN AN AREA WHERE THE FREEZING INDEX IS LESS THAN 1,000 DEG DAYS. THE DATA WERE OBTAINED FROM A TEST ROAD (FLEXIBLE PAVEMENT) THAT WAS BUILT IN NORTHERN INDIANA AND CONSISTED OF A CONTROL SECTION WITH NO INSULATION, A CONTROL SECTION WITH 1 IN. OF INSULATION, AND A CONTROL SECTION WITH THE 6-IN. SUBBASE ELIMINATED AND 1 1/2 IN. OF INSULATION ADDED. IN THE ANALYSIS OF THE 5-VARIABLE SUBSURFACE TEMPERATURE PROBLEM, 3 OF THE 4 INDEPENDENT VARIABLES- 3-DIMENSIONAL SUBSPACE AND TIME WERE HELD CONSTANT WHILE THE EFFECT ON TEMPERATURE OF THE FOURTH WAS EXAMINED. IN ADDITION, LIMITED DATA ON DIFFERENTIAL SURFACE ICING OF ADJACENT INSULATED AND UNINSULATED SECTIONS INDICATED THAT INSULATED PAVEMENTS ARE COLDER DURING A SEASONAL COOLING AND UNINSULATED PAVEMENTS ARE COLDER DURING A SEASONAL WARMING. THE OVERALL PERFORMANCE OF THE INSULATED SECTIONS IS SATISFACTORY AFTER 3 WINTERS OF SERVICE. /AUTHOR/

Supplemental Notes:

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.

Monograph Accession #:

01410345

Authors:

Horton, James A
Bowers, M M
Lovell Jr, C W

Pagination:

pp 47-55

Publication Date:

1973

Serial:

Highway Research Record

Issue Number: 429
Publisher: Highway Research Board

Conference:

52nd Annual Meeting of the Highway Research Board

Location: Washington District of Columbia, United States
Date: 1973-1-22 to 1973-1-26

ISBN:

0309021588

Media Type:

Digital/other

Features:

Figures (15) ; References (6)

Uncontrolled Terms:

Frost penetration; Seasonal variations

Geographic Terms:

Indiana

Old TRIS Terms:

Indiana

Subject Areas:

Geotechnology; Highways

Files:

TRIS, TRB

Created Date:

Sep 28 1973 12:00AM

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