PHYSICAL PROPERTIES OF AGGREGATES - Rowan

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What Affect Does F&E Have on Performance? • Tend to break under the roller exposing uncoated faces which may lead to stripping of the asphalt film off the aggregate in the presence of moisture • Particles tend to orient flat under traffic, reducing pavement voids. May lead to flushing • Change in shape affects mixture volumetrics Physical Properties of Aggregates 30
Clay Content • Measured on - 4.75 mm material • Based on sand equivalent value • AASHTO T176 • Requirements depend on traffic level > How dirty is the sand ? Physical Properties of Aggregates 31
Page 1 and 2: 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: Flat & Elongated Particles Traffic
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 and 54: Superpave Mix Size Designations Sup
Page 55 and 56: Effect of Physical Properties • S
Page 57: Questions - does it all make sense?

PHYSICAL PROPERTIES OF AGGREGATES - Rowan

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