Evaluation of oil shale bitumen as a pavement asphalt additive to reduce moisture damage susceptibility | Zendy

Raymond E. Robertson | Zendy; P.M. Harnsberger | Zendy; J. Marshall Wolf | Zendy

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Evaluation of oil shale bitumen as a pavement asphalt additive to reduce moisture damage susceptibility

Author(s) -

Raymond E. Robertson,

P.M. Harnsberger,

J. Marshall Wolf

Publication year - 1991

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/6125739

Subject(s) - asphalt , oil shale , moisture , aggregate (composite) , oil sands , water content , environmental science , geotechnical engineering , nitrogen , waste management , materials science , composite material , geology , chemistry , engineering , organic chemistry

An unrefined shale bitumen was evaluated as an agent to reduce moisture damage susceptibility of asphalt aggregate mixtures. Some activity was observed but less than might have been expected based on the molecular weight and nitrogen content of the bitumen. The counter effects of free carboxylic acids, which are known to be variable in asphalt and which are also present in the unrefined bitumen, appear to diminish the activity of the bitumen to inhibit moisture damage. 5 refs., 1 tab.

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