NEW METHOD FOR MEASURING CRACK PROPAGATION IN ASPHALTS
A novel method of measuring the rate of crack propagation in asphalt mixtures using image analysis techniques is developed in this paper that incorporates methods to observe the crack more clearly, as well as a semiautomatic analysis of the images taken during 3-point bend tests on beams of asphalt. Results show that modified binders increase the resistance to crack propagation and that the path of least resistance to cracks appears to be the interface between the coarse aggregate and the matrix. In addition, a model is presented for both polymer modified and unmodified asphalts for calculating the effect of crack propagation on analytical design techniques. The model developed is based around the 3-point flexure of beams of asphalt and monitoring the degradation of load with time.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/44544515
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Corporate Authors:
GORDON AND BREACH SCIENCE PUB.
AMSTERDAM:
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Authors:
- READ, J M
- Publication Date: 2000
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 15-34
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Serial:
- International Journal of Pavement Engineering
- Volume: 1
- Issue Number: 1
- Publisher: Taylor & Francis
- ISSN: 1029-8436
- Serial URL: http://www.tandf.co.uk/journals/titles/10298436.html
Subject/Index Terms
- TRT Terms: Aggregates; Asphalt mixtures; Asphalt pavements; Bend tests; Binders; Bituminous pavements; Image analysis; Pavement cracking; Pavement design; Polymer asphalt; Stiffness
- Uncontrolled Terms: Crack propagation
- Subject Areas: Geotechnology; Highways; Materials; Pavements; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 00800356
- Record Type: Publication
- Files: TRIS, ATRI
- Created Date: Oct 10 2000 12:00AM