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原文传递 BINDER CHARACTERIZATION AND EVALUATION. VOLUME 2: CHEMISTRY.

题名：	BINDER CHARACTERIZATION AND EVALUATION. VOLUME 2: CHEMISTRY.
作者：	Branthaver-JF; Petersen-JC; Robertson-RE; Duvall-JJ; Kim-SS; Harnsberger-PM; Mill-T; Ensley-EK; Barbour-FA; Scharbron-JF
关键词：	BINDERS-; CHEMISTRY-; CHROMATOGRAPHY-; RHEOLOGY-; MOLECULAR-WEIGHT; MOLECULAR-SIZE; OXIDATION-; AGING-; TEMPERATURE-; STRATEGIC-HIGHWAY-RESEARCH-PROGRAM
摘要：	Asphalts were separated into components by means of preparative ion exchange chromatography, preparative size exclusion chromatography, and other methods. Asphalt rheological properties were rationalized by chemical parameters such as molecular weight, molecular size distributions, and polarity factors. Analytical methods such as streamlined preparative size exclusion chromatography, supercritical fluid chromatography, and potentiometric titration were adapted for asphalt analysis. Results of a study of the mechanism of asphalt oxidation indicate that oxidative aging at service temperatures proceeds by some pathway other than a classical radical-chain. Extensive kinetic experiments at moderate temperatures and high partial pressures of oxygen show that the physical state of an asphalt affects the aging process, and that aging tests conducted at temperatures much greater than service temperature are likely yield results that do not correspond to actual field aging.
总页数：	1993/11. pp479 (Figs., Tabs., Refs.)
报告类型：	科技报告