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bitumen |
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bitumen (bĭty `mən) a generic term referring to flammable, brown or black mixtures of tarlike hydrocarbons, derived naturally or by distillation from petroleum. It can be in the form of a viscous oil to a brittle solid, including asphalt, tars, and natural mineral waxes. Substances containing bitumens are called bituminous, e.g., bituminous coal, tar, or pitch.bitumenMixture of tarlike hydrocarbons derived from petroleum. Black or brown, it varies from viscous to solid; the solid form is usually called asphalt. Bitumen occurs in nearly every part of the world and in nearly the whole range of geologic strata. The term may also refer to synthetic hydrocarbon compounds. |
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| Among bituminous roofing products, the Freedonia Group predicts modified bitumen membranes and asphalt shingles will enjoy particularly good prospects. That's because the practitioners mistakenly believed that bitumen had been used to create the dark-skinned mummies, whose name derives from mumia, she notes. StressPly[R] EUV Mineral with Starburst[TM] Mineral Surfacing, an energy-saving modified bitumen roofing system, combines the superior tensile (700 lbs. |
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