SURVEY FOR REACTIVE BLENDS OF ASPHALT AND ANTISTRIPPING ADDITIVES
When subjected to elevated temperatures, some blends of asphalts and antistripping additives undergo a reaction that causes the additive to be ineffective. The frequency of occurrence of reactive asphalt-additive blends used by the Virginia Department of Highways and Transportation was determined to ascertain the level of testing that is necessary to prevent acceptance of their use in asphaltic paving mixtures. Samples of asphalt cement were collected, combined with the two additives used most frequently by the Department, heat treated, and tested. Bottle and stripping tests were used to evaluate the reactivity of the blends. Although approximately 50% of the asphalts reacted with an additive, the reactions were not detrimental when normal additive doses were used. It was concluded that no modifications to the present test procedures and frequency of tests are needed. (FHWA)
-
- Record URL:
-
Corporate Authors:
Virginia Highway and Transportation Research Council
Charlottesville, VA United StatesVirginia Department of Highways
Traffic and Planning Division, 1221 East Broad Street
Richmond, VA United States 23219Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Maupin Jr, G W
- Publication Date: 1983-4
Media Info
- Pagination: 10 p.
Subject/Index Terms
- TRT Terms: Antistrip additives; Asphalt cement; Asphalt mixtures; Temperature
- Old TRIS Terms: Reactive blends
- Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 00387118
- Record Type: Publication
- Report/Paper Numbers: FHWA-RD-VA-83-33 Final Rpt., VHTRC 83-R33
- Contract Numbers: 1861
- Files: NTL, TRIS, USDOT, STATEDOT
- Created Date: Aug 30 1984 12:00AM