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Differences Between Petroleum Asphalt, Coal-Tar Pitch and Road Tar
Petroleum asphalt (bitumen) comes from crude oil, is aliphatic, and used widely in roads; coal-tar pitch comes from coal, is aromatic, more stable, but carcinogenic; while "road tar" usually refers to old coal tar or wood tar, now replaced by bitumen for roads due to environmental concerns, with pitch being a further refined, solid form of tar used for specialized sealing. The main difference is source and chemistry: petroleum products (aliphatic, oxidation-prone) vs. coal/wood products (aromatic, chemically resistant).
LOKASI: Lemari Referensi
RF. 15
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My Library (Lemari Referensi)
R 625.7(035) PUZ d
0000002754
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- Judul Seri
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The Asphlat Institute RR 78 - 1
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R 625.7(035) PUZ d
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- Maryland : The Asphalt Institute., 1978
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iii+30p.: Illus.; 21,5 x 28 cm
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English
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R 625.7(035)
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