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Mechanistic analysis of reflective cracking and validation of field test



Title: Mechanistic analysis of reflective cracking and validation of field test
Author(s): F. Zhou, L. Sun
Paper category : conference
Book title: Fourth International RILEM Conference on Reflective Cracking in Pavements - Research in Practice
Editor(s): A. O. Abd El Halim, D. A. Taylor
and El H. H. Mohamed
Print-ISBN: 2-912143-14-4
e-ISBN: 2351580265
Publisher: RILEM Publications SARL
Publication year: 2000
Pages: 81 - 91
Total Pages: 11
Nb references: 7
Language: English


Abstract: 
Reflective cracking is a critical problem for asphalt overlays on existing concrete pavements. A three-dimensional finite element method and the fracture mechanics method based on the two-dimensional finite element method were used to analyze effects of factors on reflective cracking, such as interface condition, width of delamination, thickness of asphalt overlay, and crack length. The analytical results show that it is not economical to prevent reflective cracking only by increasing asphalt overlay thickness. The difference between thin asphalt overlay and thick asphalt overlay is that reflective cracking is couple for thin asphalt overlay, and single for thick asphalt overlay. Furthermore, test roads were constructed to validate the results of mechanistic analysis. The deflection with load at joint is the key factor to lead to the occurence of reflective cracking, and the relative deflection mainly affects the propagation of reflective cracking.


Online publication: 2009-12-23
Publication type : full_text
Public price (Euros): 0.00