Patent ID: 8236564
Filing Date: 2012-08-07
Classification: G01N

Abstract:
1. An automated flocculation titration method for accurate determination of Heithaus parameters and/or prediction of compatibility of blended asphalt comprising the steps of: a. creating a solution by dissolving a first blended asphalt in a solvent; and b. controllably adding a titrant to said solution for a first time to cause a first flocculation onset, while monitoring light transmittance through said solution; c. determining a first added titrant amount corresponding to a first maximum transmittance for said solution, said first maximum transmittance defining said first flocculation onset; d. adding said solvent to said solution so as to eliminate said first flocculation onset; e. controllably adding said titrant to said solution for a second time to cause a second flocculation onset, while monitoring light transmittance through said solution; and f. determining a second added titrant amount corresponding to a second maximum transmittance for said solution, said second maximum transmittance defining said second flocculation onset; and g. determining accurate Heithaus parameters and/or a compatibility estimate for said first blended asphalt.