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Title: COMPARATIVE STUDY OF RTFOT AND PAV AGING SIMULATION LABORATORY TESTS
Accession Number: 00756180
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Tests were performed on unmodified asphalts of 35/50 grade penetration produced by French refineries to determine whether a prolonged pressure aging vessel (PAV) test would provide similar results to those obtained using the Strategic Highway Research Program coupled aging procedure, rolling thin film oven test (RTFOT) and PAV. Asphalts subjected only to PAV tests and identical samples after RTFOT and increasing PAV time were compared on the basis of (a) conventional consistency tests, penetration at 25 deg C, ring and ball softening temperature; (b) asphaltene content; (c) creep rheological tests at low temperature with bending beam rheometer; and (d) complex modulus tests with the Metravib dynamic rheometer. The results show that a hypothesis of equivalence between the effects of (a) RTFOT and 5 hr of PAV aging at 100 deg C and under 2.1 MPa and (b) RTFOT + 20 hr of PAV and 25 hr of PAV under the same conditions seems acceptable for the category of asphalts investigated.
Supplemental Notes: This paper appears in Transportation Research Record No. 1638, Asphalt Mixture Components.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Migliori, FCorte, J-FPagination: p. 56-63
Publication Date: 1998
Serial: ISBN: 0309065100
Features: Figures
(4)
; References
(2)
; Tables
(8)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials
Files: TRIS, TRB, ATRI
Created Date: Nov 12 1998 12:00AM
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