Design and Use of Superior Asphalt BindersThis study uses supercritical fractionation of asphalt to study the effect of asphalt composition changes on properties and to use this knowledge to reblend fractions to make superior asphalts. Both supercritical cyclohexane and supercritical pentane have been used to fractionate three reduced crudes and the corresponding AC-20 asphalts into a range of fractions. Graphs. |
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AAPT activation energies aging test Asphalt Aged Asphalt and Blends Asphalt and SC Asphalt and Selected asphalt binder Asphalt Blend asphalt films Asphalt Samples Asphalt SC Fractions asphaltene content Boltzmann Distribution calculated CARBONYL AREA CARBONYL AREA Figure carbonyl formation Carbonyl Growth chemical Chromatograms of Texaco Coastal Asphalt COASTAL FINA TEXACO Corbett Analysis CORBETT FRACTION CORBETT FRACTION DISTRIBUTION correlation cyclohexane Davison deasphalting Dynamic Viscosity Ely and Baker Extraction Fina Asphalt FRACTION 2 FRACTION gas oils Gearhart and Garwin hardening susceptibility heaters hot-mix Hydrocarbon Infrared Jemison Metal Distribution molecular weight n-pentane NAPHTHENE original asphalt oxidation oxygen pavement pentane PERCENT CORBETT FRACTION Petersen POISE POV Aging pressure RC SC Fractions reduced crude relationship rheometer RI-GPC Chromatograms road aging Rostler SATURATES SC processes SC separation SCFs solvent spectra Stegeman supercritical fractionation Texaco AC-20 Asphalt Texaco Asphalt Texaco RC SC Texas Transportation Institute vacuum distillation VANADIUM vessel Viscosity Versus whole asphalt
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Page 81 - Fraction 1 Fraction 2 Fraction 3 Fraction 4 Fraction 5 Fraction 6 Fraction 7 Fraction
Page 35 - unsupported films of asphalt to the radiant energy of a carbon arc,
Page vi - by the Texas Department of Transportation in cooperation with the Federal Highway Administration,
Page 34 - An asphalt was fractionated into asphaltenes, resins, dark oils and white oils
Page 45 - The solvent power of a SCF is related to its density, which
Page 66 - FRACTION 7 FRACTION 6 FRACTION 5 FRACTION 4 FRACTION 3 FRACTION 2