Open AccessInfrared spectra of asphalts
Author(s) -
Burton D. Beitchman
Publication year - 1959
Publication title -
journal of research of the national bureau of standards. section a. physics and chemistry
Language(s) - English
Resource type - Journals
eISSN - 2376-5704
pISSN - 0022-4332
DOI - 10.6028/jres.063a.014
Subject(s) - durability , transmittance , infrared , materials science , asphalt , infrared spectroscopy , ultraviolet , wavelength , absorption (acoustics) , analytical chemistry (journal) , composite material , optics , chemistry , optoelectronics , physics , environmental chemistry , organic chemistry
A procedure for preparing thin films of airblown asphalts and a spectroscopic study of such films throughout the infrared region of 2.5 to 15 microns are described. The relationship of transmittance of several absorption bands with the durability of the asphalt is discussed. Exposure to ultraviolet radiation produced changes in transmittance at four wavelengths which, in a series of asphalts studied, showed statistically significant correlations with durability.