CHANGES IN STRUCTURE AND COMPOSITION OF ASPHALTS AND BITUMENS
THE STUDY REPORTED INVOLVES THE APPLICATION OF AN ELECTROSTATIC RESONANCE METHOD FOR DETERMINING THE MODULUS OF ELASTICITY /YOUNGS/ AND THE COEFFICIENT OF INTERNAL BREAKDOWN /FREQUENCY OF THE ORDER OF 10 000 HZ/ AT WIDE TEMPERATURE RANGES. NATURAL ASPHALT, AND DISTILLED AND OXIDIZED PETROLEUM BITUMENS WERE STUDIED. RESULTS SHOW A PARALLEL VARIATION BETWEEN THE FRAASS BREAKING POINT AND THE TRANSITION POINT, WHICH LAST WAS CONSTANTLY 15-20 C BELOW THE FIRST. /RRL/
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Supplemental Notes:
- Vol34, No287, PP549-565, 22FIG, 5TAB, 17REF
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Authors:
- Butta, E
- CAROTI, L
- Depetris, S
- Publication Date: 1965-6
Media Info
- Serial:
Subject/Index Terms
- TRT Terms: Asphalt; Bitumen; Coefficients; Crude oil; Distillation; Elasticity (Mechanics); Electrostatics; Materials selection; Modulus of elasticity; Oxidation; Resonance; Structures; Temperature; Viscosity
- Uncontrolled Terms: Change
- Geographic Terms: Italy
- Old TRIS Terms: Determination; Internal breakdown; Natural asphalts
- Subject Areas: Bridges and other structures; Highways; Materials;
Filing Info
- Accession Number: 00210521
- Record Type: Publication
- Source Agency: Road Research Laboratory /UK
- Files: TRIS
- Created Date: Nov 1 1994 12:00AM