Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Impact of Fines on Asphalt Mix Design
Pavement engineers have known for some time that the particle shape and surface texture of aggregates play a significant role in the constructability, drivability, strength, and durability of asphalt concrete pavements. Superpave (trademark) recommends use of a variety of aggregate tests to ensure minimum desirable aggregate characteristic or 'consensus properties' in order to assure an acceptable level of performance. For fine aggregates, the recommended method is AASHTO TP33 (ASTM C1252)--Test Method for Uncompacted Void Content of Fine Aggregate (as Influenced by Particle Shape, Surface Texture, and Grading). In this investigation, three methods for classifying aggregate particle shape and texture--AASHTO TP33 (ASTM C1252), ASTM D3389 (Index of Particle Shape and Texture), and the flow rate method--were evaluated. These methods were used to rank four natural river sands and a crushed granite from good to poor performance based on the criteria established in each method.
Impact of Fines on Asphalt Mix Design
Pavement engineers have known for some time that the particle shape and surface texture of aggregates play a significant role in the constructability, drivability, strength, and durability of asphalt concrete pavements. Superpave (trademark) recommends use of a variety of aggregate tests to ensure minimum desirable aggregate characteristic or 'consensus properties' in order to assure an acceptable level of performance. For fine aggregates, the recommended method is AASHTO TP33 (ASTM C1252)--Test Method for Uncompacted Void Content of Fine Aggregate (as Influenced by Particle Shape, Surface Texture, and Grading). In this investigation, three methods for classifying aggregate particle shape and texture--AASHTO TP33 (ASTM C1252), ASTM D3389 (Index of Particle Shape and Texture), and the flow rate method--were evaluated. These methods were used to rank four natural river sands and a crushed granite from good to poor performance based on the criteria established in each method.
Impact of Fines on Asphalt Mix Design
A. A. Tayebali (Autor:in) / N. P. Khosla (Autor:in) / G. A. Malpass (Autor:in)
1996
70 pages
Report
Keine Angabe
Englisch
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