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CE332 Test 3 - 03

Asphalt mixtures

TermDefinition
target air in Asphalt 4%
Bulk Dry Specific Gravity GS of total Agg with empty voids
SSD Specific Gravity GS of total Agg with filled voids
Apparent Specific Gravity GS of Agg minus voids
Affective Aggregate Specific Gravity GS of Agg, effective asphalt, and absorbed asphalt
Bulk Vs Theoretical Max Specific Gravity Gmb vs Gmm Gmb uses Vmb, total volume Gmm uses Vmm, No air! Only mixtures
Air Void Content Target Value Less voids - Mixture prone to rutting More Voids - Mixture prone to cracking
Air% and Asphalt content relationship inversely proportional -Air% decreases as asphalt content increases
Voids in Mineral Aggregate (VMA) Minimum Limit: to ensure there is enough space to accommodate the effective asphalt without causing bleeding *Curved graph
Voids Filled with Asphalt (VFA) Acceptable Range - helps prevent marginally acceptable VMS values - linearly increases as asphalt content increases
Created by: BrendaTovar3223
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