define asphalt - EAS

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    Asphalt - Wikipedia

    https://en.wikipedia.org/wiki/Asphalt

    Asphalt, also known as bitumen , 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

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    Terminology

    Etymology
    The word "asphalt" is derived from the late Middle English, in turn from French asphalte, based on Late Latin asphalton, asphaltum, which is the latinisation of the Greek ἄσφαλτος

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    Composition

    Normal composition
    The components of asphalt include four main classes of compounds:
    • Naphthene

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    Occurrence

    The majority of asphalt used commercially is obtained from petroleum. Nonetheless, large amounts of asphalt occur in concentrated form in nature. Naturally occurring deposits of bitumen are formed from the remains of ancient, microscopic algae (

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    History

    Ancient times
    The use of natural bitumen for waterproofing, and as an adhesive dates at least to the fifth millennium BC, with a crop storage basket discovered

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    Production

    About 40,000,000 tons were produced in 1984. It is obtained as the "heavy" (i.e., difficult to distill) fraction. Material with a boiling point greater than around 500 °C is considered asphalt. Vacuum distillation separates it from the other components in crude oil (such as

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    Recycling

    Asphalt is a commonly recycled material in the construction industry. The two most common recycled materials that contain asphalt are reclaimed asphalt pavement (RAP) and reclaimed asphalt shingles (RAS). RAP is recycled at a greater rate than any other material in

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    Modern use

    Global use
    The vast majority of refined asphalt is used in construction: primarily as a constituent of products used in paving and roofing applications. According to the requirements of the end use, asphalt is produced to specification.

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  2. Asphalt Definition & Meaning - Merriam-Webster

    https://www.merriam-webster.com/dictionary/asphalt

    asphalt: [noun] 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.

  3. asphalt
    DANH TỪ
    asphalt (danh từ)
    1. a mixture of dark bituminous pitch with sand or gravel, used for surfacing roads, flooring, roofing, etc.
      • the pitch used in asphalt, sometimes found in natural deposits but usually made by the distillation of crude oil.
        từ đồng nghĩa:
    ĐỘNG TỪ
    asphalt (động từ) · asphalts (thời hiện tại ngôi thứ ba) · asphalted (thì quá khứ) · asphalted (quá khứ phân từ) · asphalting (hiện tại phân từ)
    1. surface with asphalt.
      từ đồng nghĩa:
      cover · surface · floor · top · finish · concrete (over) · flag · tile · tar · tarmac · metal
    GỐC
    late Middle English: from French asphalte, based on late Latin asphalton, asphaltum, from Greek asphalton.
    Nhiều hơn vềasphalt
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  4. What is Asphalt - EAPA

    https://www.eapa.org/what-is-asphalt

    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 ...

    • Thời gian đọc ước tính: 6 phút

    • Asphalt - definition of asphalt by The Free Dictionary

      https://www.thefreedictionary.com/Asphalt

      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 ...

    • Asphalt Definition & Meaning | Dictionary.com

      https://www.dictionary.com/browse/asphalt

      asphalt: 1. any of various dark-colored, solid, bituminous substances, native in various areas of the earth and composed mainly of hydrocarbon mixtures.

    • ASPHALT | meaning in the Cambridge English Dictionary

      https://dictionary.cambridge.org/dictionary/english/asphalt

      asphalt definition: 1. a black, sticky substance, often mixed with small stones or sand, that forms a strong surface…. Learn more. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the ...

    • Asphalt - Types, Properties, Uses and Disadvantages

      https://www.vedantu.com/chemistry/asphalt

      5.Define asphalt. Ans. Asphalt is also referred to as bitumen whose main source is petroleum from where it is derived as the semi-solid compound …

    • GENERAL ASPHALT AND CONCRETE TERMS AND DEFINITIONS

      https://www.dominionpaving.com/wp-content/uploads/2016/01/Asphalt-and... · PDF tệp

      PO Box 309 Herndon, VA 20172 I 800.728.3312 I www.dominionpaving.com I [email protected] GENERAL ASPHALT AND CONCRETE TERMS AND DEFINITIONS ASPHALT RELATED AGGREGATE: Any hard, inert mineral material, such as gravel, crushed rock, slag, or crushed stone, used in ...

    • » Asphalt Concrete

      https://vaasphalt.org/asphalt-concrete

      An asphalt concrete mixture must be designed, produced and placed in order to obtain the following desirable mix properties: 1) Stability, 2) Durability, 3)Impermeability, 4)Workability, 5) Flexibility, 6) Fatigue Resistance, and 7) Skid Resistance. Asphalt/Asphalt Concrete mixes are designed for specific functions, characteristics, attributes ...

    • When to Use What Grade of Asphalt and Why

      https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=3067&context=... · PDF tệp

      Asphalt cement, the basic asphalt binder, is defined by ASTM Standard D8 as an asphalt specially prepared as to quality and con sistency for direct use in the manufacture of bituminous pavements. Asphalt, in turn, is defined as a black or dark brown solid or ...

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