3501-18-c07 - CUTBACK ASPHALT A liquid asphalt made by...

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CUTBACK ASPHALT - A liquid asphalt made by dissolving an asphalt in a ____________________. TYPES OF CUTBACK ASPHALTS 1. RAPID CURING (RC) Relatively hard asphalt (600 - 2400 P at 60 C or 80-120 Pen) dissolved in __________. 2. MEDIUM CURING (MC) Asphalt of intermediate hardness (300 - 1200 P at 60 C or 120-250 Pen) dissolved in _________ (or kerosine). 3. SLOW CURING (SC) Soft asphalt dissolved in __________ (Kinematic viscosity of asphalt residue from SC - 70 = 4 - 70 St at 60 °C) TEST FOR GRADING OF CUTBACK ASPHALTS: __________________ Test Examples: RC-70 - Rapid Curing Cutback with a kinematic viscosity of 70 - 140 cSt at 60 °C MC-250 - Medium Curing Cutback with a kinematic viscosity of 250-500 cSt at 60 °C
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EMULSIFIED ASPHALTS (or Asphalt Emulsions) Definition: A colloidal mixture of asphalt cement, water and emulsifying agent. Two kinds of asphalt emulsion: (1) Anionic (2) Cationic Asphalt Particles in an Asphalt Emulsion 0.0037 mm
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ANIONIC EMULSIFIED ASPHALT (1) Asphalt droplets are _________
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3501-18-c07 - CUTBACK ASPHALT A liquid asphalt made by...

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