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Towards a Uniform Fracture Mechanics-Based Framework for Flexible Pavement Design
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 30 credits / 45 HE creditsStudent thesis
Abstract [en]

Cracking is an important potential failure mechanism for pavement structures. By combining a strain energy-based fracture criterion with conventional fracture mechanics based on the Energy Ratio (ER) concept, crack growth in asphalt can be investigated, and a low temperature Thermal Cracking model (TCMODEL) can be introduced. This thesis presents the implementation of the Florida cracking model into a Mechanistic-Empirical (ME) flexible pavement design framework. An improved analysis procedure for better converting raw data from the Superpave Indirect Tensile Test (IDT) into fundamental viscoelastic properties of the asphalt mixture allows for calibration of the TCMODEL. This thesis involves a detailed review of Florida cracking model and TCMODEL. Finally, a MATLAB tool is prepared for the thermal cracking model to investigate the cause and effect of the problems.

Place, publisher, year, edition, pages
2009. , 75 p.
Series
Trita-VT. FR, ISSN 1650-867X ; 09:01
Keyword [en]
Crack growth; Low temperature cracking; Fracture mechanics; Dissipated creep strain energy; Asphalt pavements; Energy Ratio
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-49774OAI: oai:DiVA.org:kth-49774DiVA: diva2:460283
Subject / course
Highway Engineering
Educational program
Degree of Master - Infrastructure Engineering
Presentation
2008-12-10, Brinellvägen 34, Stockholm, 15:25 (English)
Uppsok
Technology
Supervisors
Available from: 2011-12-08 Created: 2011-11-29 Last updated: 2011-12-08Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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