Evaluation of a biomass-derived oil for use as additive in paving asphalt

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:214779

Houde, J Jr; Clelland, I; Sawatzky, H ^[1]

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1. Natural Resources, Ottawa, Ontario (Canada)

A biomass derived oil referred to as sludge derived oil (SDO) has been evaluated to determine its potential use as an asphalt cement additive. The oil is derived from a relatively low temperature (450{degrees}C) atmospheric pressure thermoconversion process called Enersludge. The Enersludge process converts dried sewage sludge to a liquid hydrocarbon fraction. Relatively high concentrations of polar groups were identified in extensive characterization tests which indicated SDO could be utilized as an additive for asphalt. The oil`s unique properties make it a antistripping additive. Also, its strong affinity for heavy asphaltic material makes it an ideal rejuvenating agent for recycled asphalt. The SDO performed as well as the commercial antistripping asphalt additives tested in static immersion stripping tests. Laboratory-scale tests have shown that the strength of asphalt concrete produced using SDO is similar to that produced using commercial additives. In September 1994 SDO was used to pave a test strip in Quebec, Canada. This paper describes the work done at ERL/CANMET to develop SDO for antistripping applications.

• OSTI ID: 214779
• Report Number(s): CONF-950801--
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
ADDITIVES
BIOMASS
CONCRETES
CONVERSION
MECHANICAL PROPERTIES
MUNICIPAL WASTES
OILS
SEWAGE SLUDGE