Method and apparatus for analyzing asphalt content

Details Method and apparatus for analyzing asphalt content Method and apparatus for analyzing asphalt content

1998-06-12

2000-04-25

Soderquist, Arlen

Chemistry: analytical and immunological testing

Pyrolysis, combustion, or elevated temperature conversion

110236, 110345, 422 78, 436 60, 436139, 436145, 436157, 436160, 436174, 436181, G01N 3112

Patent

active

06054323&

ABSTRACT:
An apparatus and method for assaying an asphalt-containing composite material by irradiating the sample using a radiation source having a tunable preselected wavelength selected to closely approximate the absorbance wavelength of a particular material or materials found in the composite material to reduce the overall time and temperatures ordinarily needed to combust and assay such samples.

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L. Druschner Bitumen 1993, 55, 158-162.
Todres and Bhattacharja, Solvent-Free, Nuclear-Free Determination of Asphalt Content and Gradation of Hot-Mix Asphalt Concrete; The American Society for Testing and Materials (Nov. 1994), pp. 568-574.
Brown, et al., Historical Development of Asphalt Content Determination by the Ignition Method, Journal of the Association of Asphalt Paving Technologist From the Proceedings of the Technical Sessions, vol. 64, (Mar. 27-29, 1995), pp. 241-277.

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