Comparison of Sliding Plate Microviscometer and Conventional Asphalt Tests.
Abstract
Asphalt deterioration in past years has been studied using the empirical penetration and ductility tests. However, in recent years a sliding plate microviscometer has been developed which is capable of determining the viscosity of asphalts, thus reflecting a fundamental property. In the report an attempt is made to correlate the viscosity of aged asphalts with the empirical conventional asphalt tests. Viscosity test data were compared with penetration and ductility test data for selected aged asphalts from four Navy airfields. Also, one new asphalt was tested. The correlation obtained between penetration and viscosity for aged asphalts did not allow prediction of penetration from viscosity, and vice versa, to a sufficiently accurate degree for adoption of the viscosity test at this time. However, the data for the new, unaged asphalt showed excellent correlation and compared favorably with research done by others. In addition, it was found that the inflexible limit of the ductility test precluded any reasonable correlation between viscosity and ductility. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1969
- Accession Number
- AD0845746
Entities
People
- David J. Lambiotte
- George S. Priniski
Organizations
- Naval Facilities Engineering Service Center