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Types & Uses of Asphalt Materials

Types & Uses of Asphalt Materials. HMA Surface. HMA (Hot Mix Asphalt). +. Bituminous Materials. Tar. Asphalt. (from coal). (from petroleum crude). Asphalt Cement. Cutback. Emulsion. Trinidad Lake Asphalt. Asphalt Binder is Generally Produced in a Refinery. Source of Asphalt Cement.

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Types & Uses of Asphalt Materials

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  1. Types & Uses of Asphalt Materials HMA Surface Types and Uses

  2. HMA (Hot Mix Asphalt) + Types and Uses

  3. Bituminous Materials Tar Asphalt (from coal) (from petroleum crude) Asphalt Cement Cutback Emulsion Types and Uses

  4. Trinidad Lake Asphalt Types and Uses

  5. Asphalt Binder is Generally Produced in a Refinery Types and Uses

  6. Source of Asphalt Cement Oil Well (Gasoline) LIGHT DISTILLATE (Kerosene) PUMPINGSTATION MEDIUM DISTILLATE FIELD STORAGE (Diesel Oil) HEAVY DISTILLATE TOWER DISTILLATION REFINERY RESIDUUM PROCESS UNIT OR STORAGE CONDENSERS AND COOLERS TUBE HEATER ASPHALT CEMENTS GAS AIR BLOWN ASPHALT PETROLEUM FOR PROCESSING INTO EMULSIFIED AND CUTBACK ASPHALTS SAND AND WATER AIR STILL

  7. General Asphalt Binder Properties • Adheres well to most rock • Waterproof • Fairly durable • Resistant to reaction with most acids, alkalis, and salts • Temperature sensitive Types and Uses

  8. Asphalt Components Asphalt 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 Types and Uses

  9. Asphalt 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 Types and Uses

  10. Hot Mix Asphalt (HMA) • HMA = Asphalt concrete = binder + aggregate • Used mainly for hot mix pavement surfacing • Asphalt concrete • Asphalt paving mix • Asphalt mix • Asphalt • Bituminous concrete • Bituminous paving mix • Bituminous mix Types and Uses

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  15. Cutback Asphalts Rapid Curing (RC) Asphalt + Naphtha Surface Treatment RC - 30 RC - 70 RC - 250 RC - 800 Medium Curing (MC) Asphalt + Kerosene Stockpile Patch Prime Coat MC - 30 MC - 70 MC - 250 MC - 800 Slow Curing (SC) Asphalt + Oil SC - 70 SC - 250 SC - 800 SC - 3000 Types and Uses

  16. CUTBACKS - USES • Rapid Curing • Tack coats • Surface treatments • Medium curing • Prime coats • Stockpile patching materials • Road Mixing Operations • Slow curing • Prime Coats • Stockpiling • Road mixing Types and Uses

  17. EMULSIONS - 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 Types and Uses

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