A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Performance Control of Bituminous Mixtures with a High RAP Content
This chapter presents an innovative approach to predict the mechanical performance of recycled asphalt, defines rules for selecting the new binder for high reclaimed asphalt pavement (RAP) content, and thus to prescribe production settings adjustment and mix design, or even to set limits. It presents a new procedure to describe the blending degree between the aged binder and the new binder. The procedure allows a progressive extraction of the binder from the bituminous mixture with a specific solvent followed by physicochemical analysis of these samples (leachate). The chapter illustrates, using different bituminous mixtures with different RAP contents, the impact of physicochemical properties of residual bitumen from RAP on the modulus of the mixture at 15 degrees C/0.02 s for a defined blending degree. Finally, a rheological model of modulus prediction of the asphalt concrete specifically developed from the rheological properties of the binder and volume distribution of the constituents of the asphalt concrete is presented.
Performance Control of Bituminous Mixtures with a High RAP Content
This chapter presents an innovative approach to predict the mechanical performance of recycled asphalt, defines rules for selecting the new binder for high reclaimed asphalt pavement (RAP) content, and thus to prescribe production settings adjustment and mix design, or even to set limits. It presents a new procedure to describe the blending degree between the aged binder and the new binder. The procedure allows a progressive extraction of the binder from the bituminous mixture with a specific solvent followed by physicochemical analysis of these samples (leachate). The chapter illustrates, using different bituminous mixtures with different RAP contents, the impact of physicochemical properties of residual bitumen from RAP on the modulus of the mixture at 15 degrees C/0.02 s for a defined blending degree. Finally, a rheological model of modulus prediction of the asphalt concrete specifically developed from the rheological properties of the binder and volume distribution of the constituents of the asphalt concrete is presented.
Performance Control of Bituminous Mixtures with a High RAP Content
Torrenti, Jean‐Michel (editor) / La Torre, Francesca (editor)
Materials and Infrastructures 1 ; 43-57
2016-06-30
15 pages
Article/Chapter (Book)
Electronic Resource
English
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