木质素纤维在高黏沥青混合料中的分散工艺

Disperse Method of Vegetable Fibers in High Viscosity Asphalt Mixture

在多孔沥青混合料中添加木质素纤维,对于增加沥青膜厚度,提高路面耐久性有着重要意义。由于多孔沥青路面的结合料多采用高粘沥青,而木质素纤维自身呈棉絮状,受高粘沥青影响较易汇聚成团,无法达到期望效果。根据多孔沥青混合料骨架结构的特点,提出一种适用于多孔沥青混合料室内拌和的木质素纤维分散方法,同时通过室内试验验证,认为该方法确能起到提高混合料性能的良好效果。

When vegetable fibers was added in Porous Asphalt（PA）Pavement,it would help to encrease the thickness of asphalt film,and increase the durability of pavement there by.The binder of PA mixture probably use high viscosity modified asphalt,the cotton-shaped fibers will hug in huddles under the affection of binder,so it won＇t disperse evenly as wished.The paper uses the skeleton structure of porous mixture grading,putting forward a method to disperse vegetable fibers for indoor mixing,from test results of mixture this method shows good performance.