SUPPLEMENTARY STUDY OF 34-E DUAL DRUM PAVERS
IT WAS REALIZED THAT THE NUMBER OF TESTS PER VARIABLE MADE IN AN EARLIER REPORT MIGHT HAVE BEEN INSUFFICIENT TO EXPLORE FULLY THE SUITABILITY OF MIXING FOR ONLY A SHORT TIME. WHEN THIS SUPPLEMENTARY STUDY WAS CONDUCTED, A GREATER NUMBER OF STRENGTH SPECIMENS PER VARIABLE OF MIXING TIME WAS MADE TO OBTAIN SUITABLY COMPLETE DATA FOR SHORT MIXING TIMES. THE RESULTS OBTAINED IN THIS STUDY AGREE WITH THE FINDINGS OF THE EARLIER REPORT THAT CONCRETE OF ADEQUATE STRENGTH CAN BE SECURED WITH A MIXING TIME OF LESS THAN 60 SEC. WHEN A MIXING TIME OF AS FEW AS 20 SEC. WAS USED, THE CONCRETE WAS FOUND TO HAVE A STRENGTH AT 28 DAYS COMFORTABLY IN EXCESS OF 3000 PSI. ALTHOUGH THE CONCRETE WAS HARSH, THE STRENGTH RESULTS FOR THE DIFFERENT MIXING TIMES HAD AN AVERAGE COEFFICIENT OF VARIATION OF 15.5 PERCENT, INDICATING EXCELLENT CONTROL OF THE CONCRETE. /AUTHOR/
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Supplemental Notes:
- 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:
- Schneider, H W
- Woolf, D O
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Conference:
- 41st Annual Meeting of the Highway Research Board
- Location: Washington DC, United States
- Date: 1962-1-8 to 1962-1-12
- Publication Date: 1962
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 30-39
- Monograph Title: Construction of concrete pavement: methods, economics and tests
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Serial:
- Highway Research Board Bulletin
- Issue Number: 340
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Coefficients; Concrete mixing; Control; Drums (Containers); Mixing; Pavers; Paving; Strength of materials; Time; Variables
- Old TRIS Terms: Drums; Mixing time; Variations
- Subject Areas: Construction; Highways; Materials;
Filing Info
- Accession Number: 00214842
- Record Type: Publication
- Files: TRIS, TRB, ATRI
- Created Date: Jul 29 1994 12:00AM