Mixed Mode Fracture Toughness of Recycled Tire Rubber-Filled Concrete for Airfield Rigid Pavements
The effect of specimen thickness and crack length on the variations of mode I and mode II stress intensity factors (SIFs) have been analyzed by using three dimensional finite element analysis (3D FEA). Center cracked circular disc specimen (CCCD) was used in this investigation. Eight values of specimen thickness to specimen radius ratio were studied numerically, varied from 0.1 to 0.8. The present experimental research has been conducted to study the effect of replacing 10% of fine aggregate by volume with crumb rubber on crack initiation angle, crack path and fracture toughness for different mode of mixity. It can be concluded that, the site of crack initiation in notched CCCD specimen was found numerically and experimentally as at the point of the longest vertical coordinate on the notch surface for different inclination notch angle. The value of normalized mode I SIF increased at the mid plane of specimen by increasing the thickness of the specimen. However, at the specimen surface this value decreased by increasing the specimen thickness. For all mode of mixity, the plane stress fracture toughness (GC) has not been affected by replacing 10% of sand by the rubber particles.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/19966814
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Supplemental Notes:
- Abstract used by permission of publisher.
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Authors:
- Mubaraki, Muhammad
- Abd-Elhady, Amr A
- Sallam, Hossam El-Din M
- Publication Date: 2013-1
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; Photos; References; Tables;
- Pagination: pp 8-14
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Serial:
- International Journal of Pavement Research and Technology
- Volume: 6
- Issue Number: 1
- Publisher: Chinese Society of Pavement Engineering
- ISSN: 1996-6814
- EISSN: 1997-1400
- Serial URL: http://www.ijprt.org.tw/index.php
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Airport runways; Concrete pavements; Crumb rubber; Finite element method; Fracture properties; Pavement cracking; Recycled materials; Rigid pavements
- Subject Areas: Aviation; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I32: Concrete; I33: Other Materials used in Pavement Layers;
Filing Info
- Accession Number: 01480934
- Record Type: Publication
- Files: TRIS
- Created Date: May 8 2013 11:08AM