Chapter
Jul 21, 2014
Effects of Specimen Size and Crack Depth Ratio on Double-K Fracture Model Parameters of Roller Compacted Concrete
Authors: Xinzhuang Cui [email protected], Jiong Zhang [email protected], Zhijun Gao [email protected], Zengtang Wang [email protected], and Wei Sui [email protected]Author Affiliations
Publication: Recent Developments in Evaluation of Pavements and Paving Materials
Abstract
Wedge splitting test is employed to study the effects of different specimen sizes and different crack depth ratios of roller compacted concrete on double-K fracture model parameters. Results show that with an increase in initial crack depth ratio α, the unstable fracture toughness KunIC increases while the initial fracture toughness KiniIC decreases. In the range of 0.4~0.6, α has a continuous effect on KiniIC. However, the effect on KunIC reduces with the increase of α value. For specimen size, when the height of the specimen, h, is smaller than 300 mm, the effect of specimen size on KunIC is significant, but it decreases when h is larger than 300 mm and smaller than 500 mm.
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Published In
Recent Developments in Evaluation of Pavements and Paving Materials
Pages: 98 - 105
Copyright
© 2014 American Society of Civil Engineers.
History
Published online: Jul 21, 2014
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ASCE Technical Topics:
- Compaction (material)
- Concrete
- Continuum mechanics
- Cracking
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Fracture mechanics
- Material mechanics
- Material properties
- Materials characterization
- Materials engineering
- Mathematics
- Parameters (statistics)
- Roller-compacted concrete
- Solid mechanics
- Statistics
- Toughness
Authors
Affiliations
Professor, School of Civil Engineering, Shandong University, Jinan, Shandong 250061, China.E-mail: [email protected]
Lecturer, School of Civil Engineering, Shandong University, Jinan, Shandong 250061, China.E-mail: [email protected]
Graduate Student, School of Civil Engineering, Shandong University, Jinan, Shandong 250061, P.R. China.E-mail: [email protected]
Graduate Student, Engineering Development Center, Weifang Highway Bureau of Luqiao Construction, Weifang 261041, China.E-mail: [email protected]
Graduate Student, School of Civil Engineering, Shandong University, Jinan, Shandong 250061, China.E-mail: [email protected]
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