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Abstract
Cold recycling is a sustainable technology for the rehabilitation of bitumi-nous pavements. This study investigates the stiffness response of cement-bitumen treated materials (CBTM)manufactured with 80% reclaimed asphalt and treated with 2.0% Portland cement and 4.0% bitumen emulsion. Indirect tensile stiffness modulus tests were carried out to assess the strain dependence of stiffness at target horizontal deformation levels between 2 and 15 micrometers. Ultrasonic pulse velocity was also measured to evaluate stiffness at very low strain level. The tests were carried out at three temperatures (5, 20, 35C) on CBTMspecimens with 14 % of voids. The results showed that the CBTM stiffness decreased with increasing deformation level. Small-strain results can be used to estimate the linear viscoelastic response whereas damage can be observed when the deformation level is increased
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Authors (4)
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Vittoria Grilli M.Sc
- Università Politecnica delle Marche, Ancona, Italy
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Andrea Grilli
- Università Politecnica delle Marche, Ancona, Italy
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Andrea Graziani Prof
- Università Politecnica delle Marche, Ancona, Italy
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Keywords
Details
- Category:
- Monographic publication
- Type:
- rozdział, artykuł w książce - dziele zbiorowym /podręczniku w języku o zasięgu międzynarodowym
- Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Grilli V., Grilli A., Graziani A., Jaczewski M.: Effect of strain level on the stiffness of cold recycled bituminous mixtures// Bituminous Mixtures and Pavements VIII/ : , , s.578-585
- DOI:
- Digital Object Identifier (open in new tab) 10.1201/9781003402541-68
- Sources of funding:
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- IDUB
- Verified by:
- Gdańsk University of Technology
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