USE OF ELEMENTAL AND FUNCTIONAL-GROUP ANALYSIS FOR MONITORING COMPOSITIONAL CHANGES OCCURRING ON AIR BLOWING AND ACCELERATED WEATHERING OF A NATURAL ASPHALT

Authors
CHATERGOON L WHITING R SMITH C
Citation
L. Chatergoon et al., USE OF ELEMENTAL AND FUNCTIONAL-GROUP ANALYSIS FOR MONITORING COMPOSITIONAL CHANGES OCCURRING ON AIR BLOWING AND ACCELERATED WEATHERING OF A NATURAL ASPHALT, Analyst, 118(7), 1993, pp. 947-950
Citations number
12
Categorie Soggetti
Chemistry Analytical
Journal title
Analyst → ACNP
ISSN journal
00032654
Volume
118
Issue
7
Year of publication
1993
Pages
947 - 950
Database
ISI
SICI code
0003-2654(1993)118:7<947:UOEAFA>2.0.ZU;2-6
Abstract
The composition of a natural asphalt was examined using elemental anal ysis, functional group analysis and infrared spectrophotometry. Change s in composition resulting from air blowing and accelerated weathering were studied. The natural asphalt was found to have a composition tha t more closely resembles blown than straight-run petroleum asphalts. T he heteroatom content, degree of unsaturation and functional group com position were found to be related to asphalt durability.