CONSTRUCTION PROCEDURES OF SLIP-FORM PAVEMENT
FOR PURPOSES OF DISCUSSION IT IS NECESSARY TO DEFINE THE PAVER AS THE SIMPLE, BASIC SLIP-FORM UNIT FIRST INTRODUCED TO THE CONSTRUCTION INDUSTRY IN THE EARLY 1950'S. MODIFICATIONS HAVE TAKEN PLACE SINCE THAT TIME, BUT THE MACHINE IS ESSENTIALLY THE SAME. IT TRAVELS OVER A DEPOSIT OF FRESH PRE-MIXED CONCRETE, VIBRATING, TAMPING AND FORCING IT THROUGH AN ORIFICE WHICH GIVES DIMENSION, SHAPE AND DENSITY TO THE CONCRETE. CRITICAL TO THESE OPERATIONS AND THE BEST FUNCTIONING OF THE PAVER ARE: (1) THE SUBGRADE TO BE PAVED MUST BE AN ACCURATE PRESENTATION OF THE PLANE OF THE FINISHED CONCRETE PAVEMENT, (2) THE CONCRETE ITSELF MUST BE OF PROPER AND UNIFORM CONSISTENCY AND MAY BE A SPECIALLY DESIGNED MIXTURE FOR BEST RESULTS WITH THE SLIP-FORM MACHINE, AND (3) BEST OVER-ALL RESULTS WILL ACCRUE TO AN OPERATION SO SYNCHRONIZED THAT THE PAVER IS FED AT A CONSTANT RATE AND STARTING AND STOPPING ARE REDUCED TO A MINIMUM. THESE PHASES OF THE PAVING OPERATION ARE A JOINT ENGINEER-CONTRACTOR RESPONSIBILITY, BEST HANDLED BY TEAM OPERATION DEDICATED TO BOTH VOLUME AND QUALITY. THE PAVER PRESENTS ONE OF THE GREATEST STRIDES IN THE PRODUCTION OF CONCRETE PAVING FOR MANY YEARS, AND SHOWS SUCH A POTENTIAL TOWARD VOLUME PRODUCTION AT MINIMUM COST AS TO BRING ABOUT GREATER USE OF PORTLAND CEMENT CONCRETE PAVING, HERETOFORE CONSIDERED TOO COSTLY BY MANY HIGHWAY CONSTRUCTION AGENCIES. /AUTHOR/
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Supplemental Notes:
- No 295, pp 1-5 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
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Authors:
- Miles, George N
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Conference:
- 40th Annual Meeting of the Highway Research Board
- Location: Washington DC, United States
- Date: 1961-1-9 to 1961-1-13
- Publication Date: 1961
Media Info
- Media Type: Digital/other
- Monograph Title: Concrete mixing and paving
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Serial:
- Highway Research Board Bulletin
- Issue Number: 295
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Benefit cost analysis; Concrete; Concrete mixing; Consistency; Pavers; Paving; Portland cement concrete; Road construction; Slip form paving; Subgrade (Pavements)
- Old TRIS Terms: Concrete consistency
- Subject Areas: Construction; Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 00215090
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Aug 12 1994 12:00AM