Influence of reclaimed asphalt pavement (RAP) and recycled asphalt shingle (RAS) binder availability on the composition of asphalt mixtures

Article Green & Sustainable Science & Technology

Migration behavior of reclaimed asphalt pavement mastic during hot mixing

Jie Gao et al.

Summary: The production of hot central plant recycling asphalt mixture (RHMA) is more complex and uncertain than conventional hot mix asphalt. An adequate blend of virgin and aged asphalt is essential to recovering the performance of aged asphalt in reclaimed asphalt pavement (RAP).

JOURNAL OF CLEANER PRODUCTION (2022)

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Article Construction & Building Technology

A practical approach to estimate the degree of binder activity of reclaimed asphalt materials

Gustavo Menegusso Pires et al.

Summary: Using reclaimed asphalt (RA) in new asphalt mixtures can save money and resources, but limitations exist due to specifications and technical constraints. Analysis of aged RA binder is necessary to accurately determine requirements for virgin binders and additives, as well as quantify the blending degree between RA binder and virgin binder.

ROAD MATERIALS AND PAVEMENT DESIGN (2021)

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Article Construction & Building Technology

Study of the quantification of recycled binder activity in asphalt mixtures with RAP

Amal Abdelaziz et al.

Summary: The design of recycled asphalt mixtures needs to consider the activity of recycled binders to avoid the risk of cracking and moisture damage. A comparison of two methods for quantifying recycled binder activity showed that using 100 percent RAP materials is a more promising approach.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Construction & Building Technology