Softening agents for recycling asphalt pavement

Patent · Tue Aug 10 04:00:00 EDT 1993

OSTI ID:6311123

Sawatzky, H; Clelland, F I; Farnand, B A; Houde, J Jr

An asphaltic composition is described consisting essentially of: comminuted aged asphaltic pavement material; an effective amount, from about 2% to about 15 % by weight of a blend of an agent selected from the group consisting of a soft asphalt cement, a conventional asphalt cement, and a cutback asphalt, with a nitrogen-containing, adhesion-improving, anti-stripping agent comprising a sewage sludge-derived oil, or a fraction thereof, said sewage sludge-derived oil comprising a mixture of saturated aliphatic hydrocarbons, monoaromatic hydrocarbons, diaromatic hydrocarbons, polyaromatic hydrocarbons, polar compounds and basic, pyridene-soluble compounds, having the following elemental chemical composition: nitrogen, about 3.4% to about 5% by weight; oxygen, about 5.8% to about 6.9% by weight; sulfur, about 0.3% to about 0.8% by weight; hydrogen, about 9.7% to about 10.4%, and carbon, about 76.9% to about 79.8%.

• Assignee: IMS; EDB-93-119530
• Patent Number(s): US 5234494; A
• Application Number: PPN: US 7-815856
• OSTI ID: 6311123
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
099000* -- Biomass Fuels-- Products & By-Products-- (1990-)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ADDITIVES
ADHESION
ASPHALTS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
BITUMENS
BUILDING MATERIALS
CARBON
CEMENTS
CHEMICAL COMPOSITION
ELEMENTS
FUELS
HYDROCARBONS
HYDROGEN
MATERIALS
NITROGEN
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN
PAVEMENTS
PYROLYSIS PRODUCTS
PYROLYTIC OILS
RECYCLING
SEWAGE
SEWAGE SLUDGE
SLUDGES
SULFUR
SYNTHETIC FUELS
TAR
USES
WASTES