[1]杨程程,柳力,刘朝晖,等.纳米ATP接枝玄武岩纤维及其与沥青黏结性能研究[J].长安大学学报(自然科学版),2025,45(5):68-80.[doi:10.19721/j.cnki.1671-8879.2025.05.006]
　YANG Cheng-cheng,LIU Li,LIU Zhao-hui,et al.Study on nano-ATP grafted basalt fiber and its bonding characteristics with asphalt[J].Journal of Chang’an University (Natural Science Edition),2025,45(5):68-80.[doi:10.19721/j.cnki.1671-8879.2025.05.006]
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纳米ATP接枝玄武岩纤维及其与沥青黏结性能研究()
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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第45卷
期数:
2025年5期
页码:
68-80
栏目:
道路工程
出版日期:
2025-09-30

文章信息/Info

Title:
Study on nano-ATP grafted basalt fiber and its bonding characteristics with asphalt
文章编号:
1671-8879(2025)05-0068-13
作者:
杨程程1; 2; 柳力1; 刘朝晖1; 张龙柯1
(1. 长沙理工大学 交通运输工程学院,湖南 长沙 410114; 2. 湖南警察学院 交通管理系,湖南 长沙 410138)
Author(s):
YANG Cheng-cheng1; 2;  LIU Li1;  LIU Zhao-hui1;  ZHANG Long-ke1
(1. School of Traffic and Transportation Engineering, Changsha University of Science and Technology,Changsha 410114, Hunan, China; 2. Department of Traffic Administration and Engineering, Hunan Police Academy, Changsha 410138, Hunan, China)
关键词:
道路工程;  纤维沥青;  试验研究;  黏结性能;  玄武岩纤维;  纳米ATP;  化学接枝
Keywords:
road engineering;  fiber asphalt;  experimental research;  bonding characteristics;  basalt fiber;  nano-attapulgite;  chemical grafting
分类号:
U414
DOI:
10.19721/j.cnki.1671-8879.2025.05.006
文献标志码:
A
摘要:
玄武岩纤维(BF)是一种优良的路面增强材料,但因其表面光滑、表面能低,导致与沥青界面黏结强度不足,限制了其路用性能的发挥。为提升BF与沥青的界面黏结强度,以纳米凹凸棒土(ATP)为接枝材料,运用化学接枝法,提出纳米ATP接枝BF(ATP-BF)的制备方法,通过电镜扫描、红外光谱、热稳定性能和吸持沥青性能等试验,分析ATP-BF的微观和路用性能,采用纤维拉拔试验、纤维改性沥青拉伸性能试验和分子动力学模拟等,研究ATP-BF与沥青的黏结性能及黏结机理。研究结果表明:纤维状纳米ATP密布包裹于BF表面,ATP-BF中出现“闪石双链”间桥氧Si—O—Si键,同时ATP-BF热稳定性能未发生明显变化,其吸持沥青率较原样BF提升了69.74%; ATP-BF从沥青中拔出的峰值荷载、界面剪切强度和拔出功分别为原样BF的1.16倍、1.16倍和1.90倍,ATP-BF改性沥青在拉伸过程中拉力峰值和延伸度值较原样BF改性沥青分别增大了5.34%和152.42%,同时拉力-延伸度曲线包覆的面积增大了53.96%; 分子动力学模拟显示,在相同温度下,纳米ATP与沥青的界面能均大于原样BF,其中298 K时纳米ATP与沥青的界面能较原样BF增加了21.37%,且原样BF和纳米ATP与沥青4组分中芳香分的界面能最高。
Abstract:
Basalt fiber(BF)is an excellent pavement reinforcement material, but due to its smooth surface and low surface energy, it leads to insufficient bond strength at the interface with asphalt, which limits its road performance. In order to enhance the interfacial bond strength between BF and asphalt, the preparation method of ATP grafted BF(ATP-BF)was proposed by using chemical grafting method with nano-attapulgite(ATP)as grafting material. The microscopic and road properties of ATP-BF were analyzed by scanning electron microscopy test, fourier transform infrared spectroscopy test, thermal stability test, and asphalt absorption test and holding properties test. The bonding properties and mechanisms of ATP-BF with asphalt were investigated using fiber pull-out test, fiber modified asphalt tensile properties test and molecular dynamics simulation. The results show that ATP densely wraps on the surface of BF, and there is a “amphibole double chain” bridging oxygen Si—O—Si bond in the ATP-BF. Meanwhile, the thermal stability of ATP-BF does not change significantly, and the rate of absorbing and holding asphalt increases by 69.74% compared with that of the original BF.The peak load, interfacial shear strength and pull out work of ATP-BF from asphalt are 1.16 times, 1.16 times and 1.90 times of the original BF, respectively. The values of peak tension and ductility of ATP-BF modified asphalt increase by 5.34% and 152.42%, respectively. At the same time, the area encompasse by the tension-ductility curve increased by 53.96%. Molecular dynamics simulation shows that the interfacial energy between ATP and asphalt at different temperatures is greater than that of the original BF. At 298 K, the interfacial energy between ATP and asphalt is 21.37% higher than that of the original BF, and the original BF and ATP have the highest interfacial energy with the aromatics in the four components of asphalt.9 tabs, 14 figs, 32 refs.

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备注/Memo

备注/Memo:
收稿日期:2025-02-22
基金项目:国家自然科学基金项目(52208423); 长沙市杰出创新青年培养计划项目(kq2306009)
作者简介:杨程程(1994-),女,江苏宿迁人,工学博士,E-mail:782592632@qq.com。
更新日期/Last Update: 2025-09-30