PREDICTING RUTTING IN UNBOUND GRANULAR BASECOURSES FROM LOADMAN AND OTHER IN SITU NON-DESTRUCTIVE TESTS
This paper describes comparative trials of four nondestructive tests (Loadman, Falling Weight Deflectometer, Nuclear Density Meter and Clegg Hammer) conducted at the Canterbury Accelerated Pavement Testing Indoor Facility (CAPTIF) in New Zealand. The tests were evaluated to determine their suitability for quantifying the condition of unbound granular pavements and predicting their future performance. The final pavement rut depths, which were due primarily to deformation in the unbound granular basecourse layer, after 6 million ESA, were compared with the values of the initial non-destructive tests (NDTs) done immediately after compaction. Regression and correlation analyses were performed on the data obtained. Loadman showed the best correlation between test results and pavement performance; for that and other reasons detailed in the paper, Loadman was found to be the most accurate, cost-effective testing device for quality control during compaction monitoring. Comments about the usability and relative performance of each device are also included. (a)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/26087078
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Corporate Authors:
ARRB
Melbourne, Victoria Australia -
Authors:
- PIDWERBESKY, B
- Publication Date: 1997-9
Language
- English
Media Info
- Features: References;
- Pagination: p. 16-25
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Serial:
- Road and Transport Research
- Volume: 6
- Issue Number: 3
- Publisher: ARRB
- ISSN: 1037-5783
Subject/Index Terms
- TRT Terms: Base course (Pavements); Deflectometers; Densitometers; Experimental roads; Granular materials; Nondestructive tests; Pavement layers; Pavements; Performance; Rutting; Test procedures
- Uncontrolled Terms: Nuclear densitometer
- ITRD Terms: 6160: Back scattering apparatus; 2990: Basecourse; 6187: Deflectograph; 5910: Durability; 2778: Experimental road; 4107: Granular; 2952: Layer; 6216: Non destructive testing; 2955: Pavement; 3081: Rutting (wheel); 6288: Test method
- Subject Areas: Highways; Pavements;
Filing Info
- Accession Number: 00745969
- Record Type: Publication
- Source Agency: ARRB
- Files: ITRD, ATRI
- Created Date: Mar 24 1998 12:00AM