Asphalt, also known as bitumen (UK: / ˈ b ɪ tj ʊ m ɪ n /, US: / b ɪ ˈ tj uː m ə n, b aɪ-/), is a sticky, black, highly viscous liquid or semi-solid form of petroleum.It may be found in natural deposits or may be a refined product, and is classed as a pitch.Before the 20th century, the term asphaltum was also used. The word is derived from the Ancient Greek ἄσφαλτος ásphaltos.

Most agencies have developed a means of accomodating the stiffness of the reclaimed asphalt from the RAP by the selection of the particular grade of the binder. The FHWA Asphalt Mixture Expert Task Group developed recommendations that are being considered by the Association of State Highway and Transportation Officials (AASHTO) to ...

Asphalt definition, any of various dark-colored, solid, bituminous substances, native in various areas of the earth and composed mainly of hydrocarbon mixtures. See more.

An agregate mixture of rock and petroleum that is used commonly as a road paving material. Also used in parking lots. Cheaper than concrete.

asphalt definition: 1. a black, sticky substance, often mixed with small stones or sand, that forms a strong surface…. Learn more.

as·phalt (ăs′fôlt′) n. 1. See bitumen. 2. A mixture of bitumen with crushed stone gravel or sand, used for paving or roofing. tr.v. as·phalt·ed, as·phalt·ing, as·phalts To pave or coat with asphalt. [Middle English aspalt, from Medieval Latin asphaltus, from Greek asphaltos.] as·phal′tic adj. American Heritage® Dictionary of the English ...

Definition of asphalt in the Definitions.net dictionary. Meaning of asphalt. Information and translations of asphalt in the most comprehensive dictionary definitions resource on the web.

Define asphalt. asphalt synonyms, asphalt pronunciation, asphalt translation, English dictionary definition of asphalt. n. 1. See bitumen. 2. A mixture of bitumen with crushed stone gravel or sand, used for paving or roofing. tr.v. as·phalt·ed, as·phalt·ing, as·phalts To...

Define asphalt. asphalt synonyms, asphalt pronunciation, asphalt translation, English dictionary definition of asphalt. n. 1. See bitumen. 2. A mixture of bitumen with crushed stone gravel or sand, used for paving or roofing. tr.v. as·phalt·ed, as·phalt·ing, as·phalts To...

Asphalt definition is - a dark bituminous substance that is found in natural beds and is also obtained as a residue in petroleum refining and that consists chiefly of hydrocarbons.

Asphalt is a mixture of aggregates, binder and filler, used for constructing and maintaining roads, parking areas, railway tracks, ports, airport runways, bicycle lanes, sidewalks and also play- and sport areas. Aggregates used for asphalt mixtures could be crushed rock, sand, gravel or slags. Nowadays, certain waste and by-products, such as ...

Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and tarmac, bitumen macadam, or rolled asphalt in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. Asphalt mixtures have been used in pavement construction since the beginning of the twentieth century.

2-2 Asphalt Paving Materials Classifications Asphalt Concrete paving aggregates are classified according to source or means of preparation. Abrief description of the classifi-cations follows. Pit or Bank-Run Aggregates Both gravel and sand are typically pit or bank-run natural aggregates. They usually are screened to proper size and washed to ...

must be made immediately and before the asphalt chills. Asphalt cements are specified by penetration grade. This is simply a means of specifying the viscosity, consistency, or fluidity of the asphalt. Penetration is measured by permitting a standard needle, loaded to a weight of 100 grams, to penetrate into an asphalt sample

Means to place a varying depth of asphalt to eliminate depressions or other irregularities in the surface of an existing asphalt structure prior to performing an overlay. 3 | Page PO Box 309 Herndon, VA 20172 I 800.728.3312 I I [email protected] . MILLING ...

Means to place a varying depth of asphalt to eliminate depressions or other irregularities in the surface of an existing asphalt structure prior to performing an overlay. 3 | Page PO Box 309 Herndon, VA 20172 I 800.728.3312 I I [email protected] . MILLING ...