The performance and usage of coal-tar asphalt were introduced. Meanwhile, it was assumed the excellent characteristics, mechanism and technology of the modified coal tar pitch.
介绍了煤沥青的性能、用途以及有广泛用途的煤焦油改质沥青的优异特性，改质机理和生产工艺；
The performance and usage of coal-tar asphalt were introduced. Meanwhile, it was assumed the excellent characteristics, mechanism and technology of the modified coal tar pitch.
介绍了煤沥青的性能、用途以及有广泛用途的煤焦油改质沥青的优异特性，改质机理和生产工艺；
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