Chapter
Apr 21, 2012
Void Bulk Modulus Reduction of Porous Asphalt Mixture Based on Porous Linear Elastic Continuum Theory
Authors: MingFeng Chang, Ph.D. [email protected], and JianZhong Pei [email protected]Author Affiliations
Publication: Road Materials and New Innovations in Pavement Engineering
Abstract
The void bulk modulus reduction of porous asphalt mixtures was evaluated using the Gassmann's equation to describe the relationship between the various bulk moduli and the percentage of air voids in porous asphalt mixtures along with the theory of linear elastic material with voids. A continuum interpretation of the porosity of the material was presented and used in the paper. The void bulk modulus was considered to represent the air voids reduction of the porous asphalt mixtures. The data showed a larger reduction in the void bulk modulus for the dry state when compared to the saturation state. The void bulk modulus under the dry state decreased by 8.4% with the 25% reduction in the initial air voids. However, the void bulk modulus decreased by 7.8% under the saturation state.
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Information
Published In
Road Materials and New Innovations in Pavement Engineering
Pages: 1 - 8
Copyright
© 2011 American Society of Civil Engineers.
History
Published online: Apr 21, 2012
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ASCE Technical Topics:
- Binders (material)
- Continuum mechanics
- Elastic analysis
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Linear functions
- Material mechanics
- Material properties
- Materials characterization
- Materials engineering
- Mathematical functions
- Mathematics
- Mixtures
- Porosity
- Porous media
- Rock mechanics
- Structural analysis
- Structural engineering
- Voids
Authors
Affiliations
Student, Key Lab for Special Area Highway Engineer of Ministry of Education, School of Highway, Chang'an University, S. 2nd Ring Road, Xi'an, Shaanxi P.R. China 710064.E-mail: [email protected]
Associate Professor, Key Lab for Special Area Highway Eng. of Ministry of Education, School of Highway, Chang'an University, S. 2nd Ring Road, Xi'an, Shaanxi P.R. China 710064.E-mail: [email protected]
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