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2002•Ninth International Conference on Asphalt PavementsInternational Society for Asphalt PavementsRequires access

EFFECTS OF FINE AGGREGATE PROPERTIES ON RUTTING RESISTANCE

J W Button, D W Park, Arif Chowdhury, D C Little, Eyad Masad

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Abstract

Discussed is a laboratory study that compared rutting resistance of hot mix asphalt (HMA) containing fine aggregates with different angularities. Permanent deformation was measured using the Asphalt Pavements Analyzer (APA). The HMA mixtures were designed following the Superpave specifications, to the extent possible, and prepared using the Superpave gyratory compactor. Six different mixtures were prepared using the same gradation. Crushed limestone was used as the coarse aggregate in all mixtures. The findings from the APA testing are provided.

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What this paper is about

Discussed is a laboratory study that compared rutting resistance of hot mix asphalt (HMA) containing fine aggregates with different angularities. Permanent deformation was measured using the Asphalt Pavements Analyzer (APA). The HMA mixtures were designed following the Superpave specifications, to the extent possible, and prepared using the Superpave gyratory compactor. Six different mixtures were prepared using the same gradation. Crushed limestone was used as the coarse aggregate in all mixtures. The findings from the APA testing are provided.

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Available abstract

Discussed is a laboratory study that compared rutting resistance of hot mix asphalt (HMA) containing fine aggregates with different angularities. Permanent deformation was measured using the Asphalt Pavements Analyzer (APA). The HMA mixtures were designed following the Superpave specifications, to the extent possible, and prepared using the Superpave gyratory compactor. Six different mixtures were prepared using the same gradation. Crushed limestone was used as the coarse aggregate in all mixtures. The findings from the APA testing are provided.

Key concepts: Gradation, Rut, Asphalt, Aggregate (composite), Asphalt pavement, Geotechnical engineering, Materials science, Composite material

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