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Title: ASPHALT PAVING WITH AUTOMATIC SCREED CONTROL
Accession Number: 00210314
Record Type: Component
Abstract: BITUMINOUS PAVERS WITH A FLOATING SCREED UNIT, EQUIPPED WITH AUTOMATIC SCREED CONTROL WERE TESTED. ON HIGHWAY N 1, IN SWITZERLAND, AN EQUILIZING COURSE AND A WEARING COURSE WERE LAID ON A BITUMINOUS BASE COURSE. ALTHOUGH THE DEVIATIONS FROM TRUE PROFILE IN THE BASE AMOUNTED TO 2 IN., NO ATTEMPT WAS MADE TO PATCH UP THE HOLLOWS FIRST MANUALLY. THE AVERAGE DEVIATION FROM TRUE GRADE WAS BASE COURSE-0.3 IN BINDER COURSE -0.13 IN, AND WEARING COURSE - 0.10 IN. THE TESTS PROVE THAT OWING TO THE ELECTRONIC SCREED CONTROL IT IS POSSIBLE TO LAY SURFACES OF OUTSTANDING SMOOTHNESS, EVEN WHEN THERE ARE LARGE DEPRESSIONS AND ELEVATIONS IN THE BASE. HIGH PRIMARY COMPACTION THROUGH THE SCREED IS OF GREAT IMPORTANCE IN SMOOTHING OUT AN UNEVEN BASE BY MACHINE WITH- OUT PREVIOUS MANUAL PATCHING.
Supplemental Notes: Paper sponsored by Committee on Construction Practice--Flexible Pavement and presented at the 45th 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 Title: Monograph Accession #: 01410086
Authors: Blumer, MathiasPagination: pp 52-66
Publication Date: 1966
Serial: Media Type: Digital/other
Features: Figures
(18)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Construction; Highways; Materials; Pavements; Safety and Human Factors
Files: TRIS, TRB
Created Date: Nov 18 1994 12:00AM
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