FILLING AND SEALING OF JOINTS AND CRACKS IN CONCRETE PAVEMENTS
THE MORE IMPORTANT BASIC FACTORS RELATED TO THE FILLING AND SEALING ARE SUMMARIZED AND DISCUSSED AS FOLLOWS: (1) THE DIFFICULTY OF MAINTAINING JOINTS IN A FILLED-AND-SEALED CONDITION IS DUE PRIMARILY TO THE FACT THAT WITH CHANGES IN SLAB TEMPERATURE AND MOISTURE CONTENT THE JOINTS UNDERGO CHANGES IN WIDTH, (2) OTHER CONDITIONS BEING THE SAME, AND WITHIN CERTAIN LIMITS, THE GREATER THE JOINT SPACING THE GREATER THE CHANGE IN JOINT WIDTH, (3) EVEN FOR THE SAME SPACING, THE AMOUNT OF OVERALL SEASONAL CHANGE IN JOINT WIDTH IS NOT THE SAME IN ALL PARTS OF COUNTY, SINCE THE CHANGES ALSO DEPENDED ON OTHER FACTORS SUCH AS SEASONAL RANGE OF TEMPERATURE CHANGE, AMOUNT AND DISTRIBUTION OF RAINFALL, COEFFICIENT OF THERMAL EXPANSION OF THE CONCRETE, AND THE TEMPERATURE AT THE TIME OF CONSTRUCTION, (4) FOR ANY GIVEN CHANGE IN JOINT WIDTH, THE NARROWER THE JOINT SPACE THE GREATER THE STRAIN ON THE SEALING MATERIAL AND THE MORE LIKELY THE MATERIAL IS TO FAIL, (5) THE PRINCIPAL DEFICIENCY OF ALL KNOWN JOINT FILLERS IS THEIR FAILURE TO RECOVER IN THICKNESS AFTER EXTENDED PERIODS OF COMPRESSION, (6) THE PRINCIPAL DEFICIENCY OF THE CONVENTIONAL SEALING MATERIAL IS THAT IT IS BASICALLY A LIQUID, CONSEQUENTLY, PRACTICALLY INCOMPRESSIBLE WITHIN ITSELF, OF PRACTICALLY CONSTANT VOLUME, AND SUSCEPTIBLE ONLY TO A CHANGE IN SHAPE, (7) FOR ANY SEALING MATERIAL TO PROVE SATISFACTORY THERE MUST BE A PROPER RELATIONSHIP BETWEEN THE CAPABILITIES OF THE SEALER, THE OVERALL CHANGE IN JOINT WIDTH, AND THE WIDTH OF THE JOINT SPACE, AND (8) THE PERFORMANCE OF ANY GIVEN SEALING MATERIAL IN ONE PART OF THE COUNTRY IS NOT NECESSARILY INDICATIVE OF ITS PROBABLE PERFORMANCE ELSEWHERE BECAUSE OF THE CLIMATIC FACTORS. /AUTHOR/
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Supplemental Notes:
- No 78, 38 PP, 16 FIG, 3 TAB 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
- Publication Date: 1953
Media Info
- Media Type: Print
- Pagination: 38p
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Serial:
- Highway Research Board Bulletin
- Issue Number: 78
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Climate; Concrete pavements; Cracking; Earthwork; Joints; Moisture content; Sealing (Technology); Sealing compounds; Spacing; Temperature; Width
- Old TRIS Terms: Joint; Sealing
- Subject Areas: Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00216727
- Record Type: Publication
- Files: TRIS, TRB, ATRI
- Created Date: Apr 28 1994 12:00AM