A method is proposed for producing viscous bitumen for road use with improved physicomechanical properties by modifying BNA 130/200 bitumen obtained by oxidizing tar from the coking of Shubarkol coal at 160°C using elemental sulfur, with an air supply of 1.5 L/min for 1.5 h. The resulting BNA 60/90 bitumen has a total tar content of 52.09 wt %, with 21.99 wt % hydrocarbons, 24.99 wt % asphaltenes, and 0.93 wt % carbene and carboid. In terms of its penetration index, the viscous BNA 60/90 bitumen belongs to group II on the basis of its rheological properties and deformational properties. That corresponds to sol–gel structure.

提出了一种通过改性 BNA 130/200 沥青来生产路用粘性沥青的方法，该沥青是通过使用元素硫在 160°C 下氧化 Shubarkol 煤焦化得到的焦油而获得的，空气供应量为 1.5 L/min 1.5小时 所得BNA 60/90沥青的总焦油含量为52.09重量％，其中含有21.99重量％的烃、24.99重量％的沥青质和0.93重量％的卡宾和碳化物。就针入度指数而言，粘性 BNA 60/90 沥青的流变特性和变形特性属于 II 类。这对应于溶胶-凝胶结构。