PHYSICAL PROPERTIES OF AGGREGATES - Rowan

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Superpave Aggregate Tests and Blend Selection • Aggregate tests – Consensus properties - required – Source properties - optional • Aggregate criteria – Based on aggregate blend – Based on traffic and depth into pavement • Design aggregate structure – 0.45 power chart – Controls points and restricted zone Physical Properties of Aggregates 54
Effect of Physical Properties • Size • Higher size on Performance – greater bearing capacity – toughness critical to performance – poor packing characteristics Physical Properties of Aggregates 55
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PHYSICAL PROPERTIES OF AGGREGATES P
Page 3 and 4: Aggregate Properties • Consensus
Page 5 and 6: Physical Properties of Aggregates 5
Page 7 and 8: Coarse Aggregate Angularity Traffic
Page 19 and 20: Fine Aggregate Angularity Traffic D
Page 21 and 22: Flat, Elongated Particles • Measu
Page 29 and 30: Flat & Elongated Particles Traffic
Page 31 and 32: Clay Content • Measured on - 4.75
Page 35: Physical Properties of Aggregates 3
Page 41 and 42: Clay Content Traffic ESALs Percent
Page 43 and 44: Superpave Aggregate Specifications
Page 45 and 46: Superpave Aggregate Gradation • U
Page 47 and 48: Standard Aggregate Sieves 50 mm 2.3
Page 49 and 50: 100 100 90 72 65 48 36 22 15 9 4 Ag
Page 51 and 52: Types Of Gradations • Open graded
Page 53: Superpave Mix Size Designations Sup
Page 57: Questions - does it all make sense?
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PHYSICAL PROPERTIES OF AGGREGATES - Rowan

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