封层施工中，沥青粘结料与碎石的撒布量是关键。
Asphalt binder materials and the cloth is the key factor of dressing construction.
结果表明：SBR 乳化沥青具有较好的层间粘结能力和温度稳定性。
The results indicate that SBR emulsified asphalt has better felting capability and temperature stability.
随着改质沥青的加入，焦2煤和1/3焦煤的胶质层厚度显著增加，焦2煤的粘结性指数也显著增加。
The plastometer thickness of No. 2 coking coal and 1/3 coking coal increased dramatically by adding modified coal tar pitch, meanwhile, the coal caking indexes increased dramatically.
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