Accession Number : AD0881757

Title :   Extraction Procedure for Rubberized-Tar Paving Mixtures.

Descriptive Note : Technical rept. Oct 69-Dec 70,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Personal Author(s) : White, T. D.

Report Date : FEB 1971

Pagination or Media Count : 37

Abstract : An extraction method for rubberized tar was developed and validated. The basic procedure is a modification of Method A of the Standard Method of Test for Quantitative Extraction of Bitumen from Bituminous Paving Mixtures, ASTM Designation D 2172. The modification involves use of a primary and a secondary solvent: a material derived from tar distillation called quinoline and 1,1,1-trichloroethane, respectively. Results of tests using the suggested method indicate that the method is valid for nonporous and porous aggregates over a wide range of rubberized-tar contents. (Author)

Descriptors :   *SOLVENT EXTRACTION), (*PAVEMENTS, TEST METHODS, QUALITY CONTROL, ASPHALT, ELASTOMERS, QUINOLINES, ORGANIC SOLVENTS.

Subject Categories : Construction Equipment, Materials & Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE