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Title:

DEVELOPMENT OF EFFECTIVE POURED-IN-PLACE SYSTEMS FOR CONCRETE PAVEMENT JOINTS

Accession Number:

00216900

Record Type:

Component

Abstract:

FOUR YEARS AGO THIOKOL BEGAN TO INVESTIGATE ACTIVELY THE PROBLEMS INVOLVED IN SEALING TRANSVERSE HIGHWAY JOINTS. A SERIES OF HIGHWAY JOINTS WERE SEALED WITH A NUMBER OF FIRST- GENERATION HIGHWAY SEALANTS AND PERIODICALLY INVESTIGATED FOR FAILURES. A STUDY OF THE FAILURES AND ATTEMPTS TO DUPLICATE THEM IN THE LABORATORY RESULTED IN NEW OR IMPROVED TESTS OF ADHESION, COHESION, STRESS RELAXATION, AND DYNAMIC CYCLING RESISTANCE. SEALANT AND SLAB TEMPERATURE GRADIENTS, JOINT MOVEMENT, AND THE RELATIONSHIP OF THESE VARIABLES WERE ALSO INVESTIGATED, AS WERE NONTHERMAL JOINT MOVEMENTS IN SHEAR AND VERTICAL DISPLACEMENT. THE RESULTS OF THESE STUDIES LED TO A NEW TESTING DEVICE AND TECHNIQUE THAT DEFINED AND ARTIFICIALLY RECONSTRUCTED AN IDEAL NATIONAL YEAR IN TERMS OF TEMPERATURE AND JOINT MOVEMENT. THE STUDY OF FOUR SECOND-GENERATION SYSTEMS IN THIS DEVICE RESULTED IN ONE FINAL SEALANT SYSTEM, WHICH WAS THEN COMMERCIALLY INSTALLED UNDER ACTUAL FIELD CONDITIONS. AFTER ONE YEAR OF USE THIS SEALANT'S GOOD PERFORMANCE TO DATE REAFFIRMS THE VALIDITY OF THE NEW TEST METHOD. /AUTHOR/

Supplemental Notes:

Paper sponsored by Committee on Sealants and Fillers for Joint and Cracks in Pavements and presented at the 48th Annual Meeting. 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 #:

01410227

Authors:

Pachuta, John M
Smith, Daniel J

Pagination:

pp 81-86

Publication Date:

1969

Serial:

Highway Research Record

Issue Number: 287
Publisher: Highway Research Board

Media Type:

Print

Features:

Figures (6) ; References (2) ; Tables (1)

Old TRIS Terms:

Subject Areas:

Geotechnology; Highways; Materials; Pavements

Files:

TRIS, TRB

Created Date:

Dec 22 1994 12:00AM

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