1CUTBACK ASPHALT -A liquid asphalt made by dissolving an asphalt in a petroleum solvent.TYPES OF CUTBACK ASPHALTS1. RAPID CURING (RC)Relatively hard asphalt(600 - 2400 P at 60 C or 80-120 Pen)dissolved in gasoline.2. MEDIUM CURING (MC)Asphalt of intermediate hardness(300 - 1200 P at 60 C or 120-250 Pen)dissolved in kerosene (or kerosine).3. SLOW CURING (SC)Soft asphalt dissolved in diesel oil(Kinematic viscosity of asphalt residuefrom SC - 70 = 4 - 70 St at 60 °C)TESTS ON CUTBACK ASPHALTS(1) Kinematic Viscosity TestUsed for grading of cutbacksExamples:RC-70 -Rapid Curing Cutback with a kinematic viscosity of 70 - 140 cSt at 60 °CMC-250 - Medium Curing Cutback with a kinematic viscosity of 250-500 cSt at 60 °C
has intentionally blurred sections.
Sign up to view the full version.