Construction Materials And Testing2D
Bituminous Materials - Theory & Concepts - Materials Marshall Stability
Properties of asphalt, emulsions, and cutbacks, and asphalt concrete mix design.
Open the complete lessonMarshall Asphalt Design
Simulate compacted asphalt specimen testing to evaluate optimum binder content for structural road paving.
Asphalt Binder Content (AC)5.0%
Dry Mix (4.0%)Rich Mix (7.0%)
Optimum Asphalt Content (OAC) typically targets exactly $4.0\%$ Air Voids while confirming other design criteria are met.
Stability (kN) vs AC (%)
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Air Voids (VTM %) vs AC (%)
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Stability
12.5 kN
Req. ≥ 8.0
Air Voids (VTM)
4.4%
Req. 3.0 - 5.0
Voids VMA
14.2%
Req. ≥ 14.0
Filled (VFA)
69%
Range 65 - 78
❌ Mix Design Rejected: Adjust binder content or compaction blows to meet specs.