SULFUR-MODIFIED ASPHALT EMULSION AND BINDER COMPOSITIONS

摘要

A Performance Grade sulfur-extended asphalt binder emulsion is made by combining a viscosifier, an emulsifier, a Performance Grade sulfur-extended asphalt binder, optionally a saponification agent, and a base aqueous solution. During creation of the asphalt emulsion, none of the components or combinations of them exceeds 275° F. The Performance Grade sulfur-extended asphalt binder composition is made by combining free or element sulfur, a linear alkane material, optionally a saturated-backbone polymer modifier, optionally a non-aqueous acid, and a base asphalt. The disclosed Performance Graded sulfur-extended asphalt binder and Performance Graded asphalt sulfur-extended asphalt binder emulsion allow operators using these products directly or in combination with aggregates and other materials to mix and blend the compositions, and apply the compositions in the field, at temperatures less than 300° F.