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Portuguese Experiments in Pavement Rehabilitation with Asphalt Rubber Mixtures

Authors: Mª de Lurdes Antunes, Fátima Batista, Mª Isabel Eusébio, Margarida Sá da Costa, Carlos Valverde Miranda

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Abstract

This paper describes the first results achieved in a study concerning the use of Asphalt Rubber Mixtures in Pavement Rehabilitation in Portugal. It concerns the application of a gap graded asphalt mixture in the overlay of cracked asphalt pavements in two road stretches located in the North of Portugal.

In the frame of the co-operation between the National Laboratory of Civil Engineering (LNEC) and the Road Administration (ICERR), a research study was initiated, with the following objectives: a) characterisation of the rubber modified binder and its manufacturing process; b) characterisation of the asphalt rubber mixture; c) study of the long term performance of the pavements overlaid with this type of mixture. The paper deals mainly with the results obtained in items a) and b).

Additional Information

Year

2000

Pages

23