coal-tar pitch


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coal-tar pitch

n
(Elements & Compounds) a residue left by the distillation of coal tar: a mixture of hydrocarbons and finely divided carbon used as a binder for fuel briquettes, road surfaces, and carbon electrodes
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ASTM D 3423 Standard Practice for Application of Emulsified Coal-Tar Pitch (Mineral Colloid Type) says to allow conventional hot-mix asphalt surfaces to age a minimum of 30 days prior to the application of the sealer.
Our people work in high temperatures with molten metal, heavy overhead cranes and large vacuum crucibles," says Hammond, "They unload 200 tons of alumina every hour off river barges, and coal-tar pitch off 90-ton railcars.