Abstract
A procedure for preparing thin films of airblown asphalts and :L sp ect ro copi c s(udy of such film s t hrougho ut t he infrared region of 2.5 to 15 mi cron s are described. The relationship of tran smittance of several absorption bands wi th t h e dura bility of tbe asphal t is d is-cLi ssed. Exposure to ultrav iolet radiation produced changes in trans mittance a t four wavele ng ths wh ich , i n a series of aspbalts studied , showed statisticall y significant correlati ons wi th d urabili ty.
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CITATION STYLE
Beitchman, B. D. (1959). Infrared spectra of asphalts. Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 63A(2), 189. https://doi.org/10.6028/jres.063a.014
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