Highway Engineering CE 431

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Presentation transcript:

Highway Engineering CE 431 THE ASPHALT INSTITUTE METHOD Eng. Ali Mohammed Babalghaith

THE ASPHALT INSTITUTE METHOD Full depth asphalt concrete. Asphalt concrete surface and emulsified asphalt base. Type I: Emulsified asphalt mixes made with processed dense-graded aggregates. Type II: Emulsified asphalt mixes made with semi-processed, crusher-run, pit-run, or bank-run aggregates. Type III: Emulsified asphalt mixes made with sands or silty sands. Asphalt concrete and untreated aggregate base. Base thickness of 6”. Base thickness of 12”.

THE ASPHALT INSTITUTE METHOD Full depth asphalt concrete. H

THE ASPHALT INSTITUTE METHOD 2- Asphalt concrete surface and emulsified asphalt base (Type I) H

THE ASPHALT INSTITUTE METHOD 2- Asphalt concrete surface and emulsified asphalt base (Type II) From table min. H

THE ASPHALT INSTITUTE METHOD 2- Asphalt concrete surface and emulsified asphalt base (Type III) From table min. H

THE ASPHALT INSTITUTE METHOD 3- Asphalt concrete and untreated aggregate base (Base thickness of 6”) (150 mm) H 150mm 6 in

THE ASPHALT INSTITUTE METHOD 3- Asphalt concrete and untreated aggregate base (Base thickness of 12”) (300 mm) H 300 mm 12 in