NON-DESTRUCTIVE TESTING OF PAVEMENTS
A VIBRATORY-TYPE MACHINE WAS DEVELOPED BY THE ROYAL DUTCH SHELL COMPANY, AMSTERDAM, HOLLAND, FOR NON-DESTRUCTIVE TESTING OF PAVEMENTS. THIS MACHINE WAS MADE AVAILABLE TO THE CORPS OF ENGINEERS FOR ABOUT SIX MONTHS, DURING WHICH TESTS WERE MADE ON PAVEMENTS AND UNSURFACED SOIL AREAS. FOR THE GREATER PART OF THE TIME THE TESTS WERE UNDER THE DIRECT SUPERVISION OF ENGINEERS FROM THE ROYAL DUTCH SHELL COMPANY. EVALUATIONS OF THE PAVEMENTS CAN BE MADE BASED ON TWO DISTINCT PRINCIPLES. THE MACHINE CAN BE MADE TO SERVE AS A SOURCE OF VIBRATIONS FROM 10 TO 2,000 CYCLES PER SECOND, AND THE WAVE VELOCITY CAN BE DETERMINED. THE ELASTIC MODULUS OF THE PAVEMENT CAN THEN BE ESTABLISHED BASED ON ACCEPTED RELATIONSHIPS BETWEEN THE VELOCITY OF THE WAVE PROPAGATIONS AND ELASTIC CONSTANTS. A SECOND APPROACH IS A DETERMINATION OF THE SO-CALLED STIFFNESS FACTOR, WHICH IS THE RELATIONSHIP BETWEEN A DYNAMIC LOAD AND THE RESULTING DEFLECTION OF THE PAVEMENT SURFACE UNDER A CIRCULAR LOADED AREA. THIS PAPER PRESENTS TYPICAL RESULTS OBTAINED WITH THE MACHINE. /AUTHOR/
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Supplemental Notes:
- No 277, pp 30-36, 4 FIG, 1 TAB, 6 REF 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:
- Maxwell, A A
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Conference:
- 39th Annual Meeting of the Highway Research Board
- Location: Washington DC, United States
- Date: 1960-1-11 to 1960-1-15
- Publication Date: 1960
Media Info
- Media Type: Digital/other
- Pagination: 7p
- Monograph Title: Non-destructive dynamic testing of soils and highway pavements
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Serial:
- Highway Research Board Bulletin
- Issue Number: 277
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Deflection; Dynamic loads; Modulus of elasticity; Nondestructive tests; Pavements; Shear modulus; Vibration; Wave motion
- Uncontrolled Terms: Wave velocity
- Old TRIS Terms: Highway pavement; Test results
- Subject Areas: Geotechnology; Highways; Pavements;
Filing Info
- Accession Number: 00206924
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Aug 19 1994 12:00AM