Skid Resistance Performance of Asphalt Mixtures Containing Recycled Pavement Materials under Simulated Weather Conditions

One of the challenges of using recycled materials in road structures is to maintain safe and durable pavements. A multitude of research has been conducted over the years on various recycled materials, with a focus on the structural performance of pavements. Another crucial, but almost overlooked, as...

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Bibliographic Details
Published in:Recycling (Basel) 2022-07, Vol.7 (4), p.47
Main Authors: Pomoni, Maria, Plati, Christina
Format: Article
Language:English
Subjects:
Aggregates
Asphalt
Asphalt mixes
Asphalt pavements
Bituminous materials
British Pendulum Tester
Climatic conditions
crumb rubber
Laboratories
Pavement materials
Rain
RAP
Recycled materials
Recycling
Rehabilitation
Roads & highways
Rubber
Simulation
Skid resistance
Tires
Traffic accidents & safety
Weather
weather conditions
Wetting
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Summary:One of the challenges of using recycled materials in road structures is to maintain safe and durable pavements. A multitude of research has been conducted over the years on various recycled materials, with a focus on the structural performance of pavements. Another crucial, but almost overlooked, aspect is the pavement’s ability to provide adequate skid resistance for road users under different climatic conditions. With this in mind, the present study aimed to investigate the skid resistance of asphalt mixtures containing two different types of recycled materials under laboratory-simulated weather conditions. Conventional hot-mix asphalt (HMA) and mixtures containing either reclaimed asphalt pavement (RAP) for aggregate replacement or crumb rubber (CR) as a bitumen additive were prepared and tested at different temperatures and different surface conditions (i.e., dry/wet) following a wetting protocol. Skid resistance was measured using a British Pendulum Tester (BPT). The results showed that the recycled mixtures performed similarly to conventional ones in terms of the skid resistance when the temperature was varied and under variable simulated surface conditions too. In some cases, they performed even better than conventional mixtures. Overall, a promising potential is demonstrated towards the use of the investigated recycled materials in asphalt surface courses.
ISSN:2313-4321
2313-4321
DOI:10.3390/recycling7040047