【摘要】 利用表面吸附技术，分析研究用粉煤灰代替石灰石矿粉作为沥青填料，在填料表面发生的吸附吸收过程。研究结果说明粉煤灰和石灰石矿粉在相同颗粒度情况下，比石灰石矿粉具有更大的比表面及吸附孔体积，而且粉煤灰表面吸附孔大部分孔半径为２０×１０－４μｍ，而石灰石矿粉表面孔则集中在孔半径为８×１０－４μｍ，所以，粉煤灰能够选择性的吸收石油沥青中的蜡，从而改善了石油沥青的使用性能。更多还原

【Abstract】 Using the technique of surface adsorption,has been analyzedand developed of coal ash as filler in asphalt mixture instead powder of limestone. The subject of this work in process of adsorption-absorption which takeplace on surface of fillers.As a result showed that in same gramulanity of coalash or powder of limestone,The filler has more large specific surface & adsorption volume,The radius of adsorption pore of coal ash is 20×10-4μm,adius ofpowder of limestone is 8 ×10-4μm,so the powder of coal ash has a good abilityof adsorption wax in asphalt selectively,then improved the performance of asphalt.更多还原