#bitumen
- Natural bitumen — A niche technical term used to designate natural bitumens or asphaltic substances with a complex structure, rich in heavy hydrocarbons, formed through the slow transformation of organic matter in the absence of oxygen. It is used in geological studies regarding fossil fuel deposits and in the special construction materials industry.
- To coat with bitumen — To coat, cover, or mix mineral aggregates (crushed stone, gravel, sand) with a hydrocarbon binder (fluid bitumen or bituminous emulsion) to obtain asphalt mixtures for road surfaces. In civil engineering, this structural process ensures the cohesion, impermeability, and mechanical resistance of bituminous layers applied to highways or public roads.
- Bitumen-coated — Having undergone the process of anrobare; a mineral aggregate, stone chipping, or rocky material that has been uniformly wrapped and covered with a thin film of bitumen, emulsion, or hydrocarbon binder. In a technical sense, it describes the state of the components of an asphalt mixture ready to be laid and compacted on the roadway to form impermeable and resistant road layers.
- Asphalt — A natural or artificial mixture of bitumen and granular mineral matters, black or dark brown in color, structurally used as an impermeable binder for road paving, waterproofing buildings, or manufacturing protective varnishes. In colloquial sense, it designates the roadway surface of a modernized street or highway.
- Asphalt pavement — The totality of technical paving or covering works of a road, pedestrian, or industrial surface with a compact layer of asphalt; the result of the asphalting operation, viewed as a finished structure. It is a technical term more rarely used in current speech, usually replaced by the noun of action 'asfaltare'.
- Asphalt carrier — A specially constructed tanker ship intended for transporting liquid bitumen or asphalt in a hot state; relating to the transport or industrial handling of asphalt. Its structure includes thermally insulated tanks and complex heating systems that maintain cargo fluidity during the maritime voyage.
- Asphaltite — A natural variety of solid bitumen, black or dark brown in color, with a silky or vitreous luster and conchoidal fracture, formed through the natural oxidation and polymerization of petroleum within the layers of the earth's crust. This hydrocarbon mineral has a high melting point (between 110 and 200 degrees Celsius) and is industrially utilized in manufacturing insulating varnishes, special paints, plastics, and high-performance electrical insulations.
- Asphaltogenic — Generating or favoring the formation of asphalt or bituminous substances; having the property to transform into heavy asphaltenic compounds under specific temperature and pressure conditions. In petroleum geochemistry, the term describes source rocks or crude oil types rich in heavy aromatic hydrocarbons, structurally prone to leaving massive bituminous residues following natural or industrial distillation processes.