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Asphalt Binder Types and Uses 1
Types & Uses of Asphalt Materials
HMA Surface
Asphalt Binder Types and Uses 2
+
HMA (Hot Mix Asphalt)
Asphalt Binder Types and Uses 3
Bituminous MaterialsBituminous Materials
Asphalt Tar
AsphaltCement
EmulsionCutback
(from petroleum crude)(from coal)
Asphalt Binder Types and Uses 4
Trinidad Lake AsphaltTrinidad Lake Asphalt
Asphalt Binder Types and Uses 5
Asphalt Binder is Generally
Produced in a Refinery
MEDIUM DISTILLATEFIELD STORAGE
PUMPINGSTATION
LIGHT DISTILLATE
HEAVY DISTILLATE
PROCESSUNIT
ASPHALTCEMENTS
FOR PROCESSING INTOEMULSIFIED ANDCUTBACK ASPHALTS
STILL
AIR
AIRBLOWNASPHALT
STORAGE
TOWERDISTILLATIONREFINERY
RESIDUUM
OR
GAS
PETROLEUM
SAND AND WATER
CONDENSERS AND
COOLERS
TUBEHEATER
Source of Asphalt CementOil Well (Gasolin
e)
(Kerosene)
(Diesel Oil)
Asphalt Binder Types and Uses 7
General Asphalt Binder PropertiesGeneral Asphalt Binder Properties
• Adheres well to most rock
• Waterproof
• Fairly durable
• Resistant to reaction with most
acids, alkalis, and salts
• Temperature sensitive
Asphalt Binder Types and Uses 8
Asphalt ComponentsAsphalt binder is broken down into 3 components:
• Asphaltenes– Dark brown friable solids– Control viscosity and adhesive properties
• Resins– Dark solid or semi-solid– Greatly affected by temp.– Disperse the asphaltenes
• Oils– Colorless or white liquids– Oxidize and harden into asphaltenes and resin molecules
* These three components are Blended to produce asphalt binder of desired properties
Asphalt Binder Types and Uses 9
Asphalt Types Used in PavementAsphalt Types Used in Pavement
• Asphalt cement (asphalt binder)Used for HMA, patching
• Asphalt emulsion (residue + water + emulsifying agent)
Used for cold mix & maintenance applications
• Asphalt cutback (residue + solvent)
Used for cold mix & maintenance applications
Asphalt Binder Types and Uses 10
• Asphalt concrete• Asphalt paving
mix• Asphalt mix• Asphalt
Hot Mix Asphalt Hot Mix Asphalt (HMA)(HMA)
• Bituminous concrete• Bituminous paving
mix• Bituminous mix
HMA = Asphalt concrete = binder + aggregate
Used mainly for hot mix pavement surfacing
Asphalt Binder Types and Uses 11
Asphalt Binder Types and Uses 12
Asphalt Binder Types and Uses 13
Asphalt Binder Types and Uses 14
Asphalt Binder Types and Uses 15
Cutback AsphaltsCutback Asphalts
Rapid Curing (RC)Asphalt + NaphthaSurface Treatment
RC - 30RC - 70RC - 250RC - 800
Medium Curing (MC)Asphalt + Kerosene
Stockpile PatchPrime Coat
MC - 30MC - 70MC - 250MC - 800
Slow Curing (SC)Asphalt + Oil
SC - 70SC - 250SC - 800
SC - 3000
Asphalt Binder Types and Uses 16
CUTBACKS - USESCUTBACKS - USES• Rapid Curing
– Tack coats– Surface treatments
• Medium curing– Prime coats– Stockpile patching materials– Road Mixing Operations
• Slow curing– Prime Coats– Stockpiling– Road mixing
Asphalt Binder Types and Uses 17
EMULSIONS - USESEMULSIONS - USES• Slow Setting (SS)
– Tack coats, fog seals, dense-graded cold mixes
• Medium Setting (MS)– Open graded cold asphalt-aggregate mixtures
• Rapid Setting– Surface treatments
Asphalt Binder Types and Uses 18
Asphalt Binder Types and Uses 19
Asphalt Binder Types and Uses 20