玻璃纤维与木质素对沥青混合料路用性能的影响研究  

Study on the effect of glass fiber and lignin on the road performance of asphalt mixture

作　　者：李捷飞 LI Jiefei(Yunnan Yunlu Engineering Testing Co.,Ltd.,Kunming 650000,China)

机构地区：[1]云南云路工程检测有限公司,云南昆明650000

出　　处：《粘接》2025年第3期78-81,共4页Adhesion

摘　　要：为减少沥青路面病害发生率,延长其使用寿命,将玻璃纤维与木质素2种添加剂混合到沥青混合料中以改善其性能,并对其改性机理及影响机制进行探究。结果表明,玻璃纤维长度对沥青混合料的马歇尔强度具有显著影响:掺入玻璃纤维与木质素后,矿料间隙率和有效沥青饱和度与对照组相差无几,但混合料孔隙率整体有所提升;12 mm长度玻璃纤维、与9%掺量木质素条件下回弹模量取得最高值,与对照组相比,15℃回弹模量提高了31.76%,25℃回弹模量提高了33.74%;12 mm玻璃纤维对混合料的低温性能有明显改盖作用,掺入木质素后增益效果更加显著,在9%掺量条件下达到峰值,后续随木质素掺入比例增加而下降。In order to reduce the incidence of asphalt pavement disease and prolong its service life,two additives,glass fiber and lignin,were mixed into asphalt mixture to improve its performance,and its modification mechanism and influencing mechanism were explored.The results showed that the length of glass fiber had a significant effect on the Mlarshall strength of asphalt mixture.After the addition of glass fiber and lignin,the void ratio and eflective asphalt saturation of the ore were almost the same as those of the control group,but the porosity of the mixture was improved overall.The highest value of resilience modulus was obtained under the condition of 12 mm length glass fiber and 9%lignin content.Compared with the control group,the resilience modulus at 15℃was increased by 31.76%and 33.74%at 25℃.12 mm glass fiber had a significant effect on the low-temperature performance of the mixture,and the gain effect was more significant after the addition of lignin,which reached the peak under the condition of 9%content,and then decreased with the increase of lignin incorporation ratio.

关 键 词：玻璃纤维 木质素 沥青混合料 路用性能 

分 类 号：TQ341[化学工程—化纤工业]