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Määritelmät
Substantiivit
- Mineral pitch; a black, tarry substance, burning with a bright flame; Jew’s pitch. It occurs as an abundant natural product in many places, as on the shores of the Dead and Caspian Seas. It is used in cements, in the construction of pavements, etc.
- By extension, any one of the natural hydrocarbons, including the hard, solid, brittle varieties called asphalt, the semisolid maltha and mineral tars, the oily petrolea, and even the light, volatile naphthas.
- (Canadian English) Canadian deposits of extremely heavy crude oilhttp://www.energy.gov.ab.ca/OilSands/793.asp
Esimerkit
- You need to excavate and remove the topsoil, line the subsoil with a geotextile, then lay and compact hardcore. Follow this with a layer of compacted "hoggin" – compacted clay, gravel and sand. This is then sprayed with hot bitumen, and has a layer of pea shingle rolled into it.
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