Asphalt Extender is a non-flowable, bituminous black semi-solid material. As the name suggested, AE is used to reduce consumption and cost of bitumen used in the production of pavement asphalt or premix. Asphalt Extender has been used in developed countries since 1980s with blending percentage between 5% to 15%.
Studies has shown it has a few added advantages such as better cold properties and compatible with conventional bitumen. It also has superior performance where Recycled Asphalt Pavement (RAP) and Recycled Asphalt Shingles (RAS) are used. Its carbon footprint is lower than conventional bitumen.
Asphalt Extender is a product of vacuum distillation column used in used engine oil re-refining process.
Asphalt Extender is made of non-distillable components of used engine oil, such as lubricant additives, carbonized organic compounds and wear metals from engine parts.
No, Asphalt Extender cannot replace a conventional bitumen.
Yes. Asphalt Extender has flash point above 260 deg C. It is not combustible inside premix drum. Asphalt Institute studies show it is non-carcinogenic. It is proven not hazardous to environment.
Product Use: Asphalt Extender; Asphalt Flux; Vacuum Tower Bottoms; REOB
Synonyms / Trade Name: Asphalt additive to be used in combination with other products
Hazard Identification: Flammable liquid – category 4, carcinogenicity – category 2, toxic to reproduction – category 2, specific target organ toxicity – category 2, acute toxicity – inhalation – category 4, acute aquatic toxicity – category 3
Composition: Lubricating oils, used, residues
Fire Fighting Measures: Carbon dioxide, dry chemical, or water fog. Water spray or foam may cause frothing
Storage: Store in a cool dry location. Keep away from incompatible materials (Section 10). Do not store in open or unlabelled containers.
General Information: For hot product : viscous, semi-solid, black, rotten-egg odor; for cold product : Solid, black, rotten-egg odor
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