[1]牛冬瑜,刘凯,马芳臣,等.浇筑式沥青结合料热稳定性、流变特性及疲劳性能评价[J].长安大学学报(自然科学版),2026,46(2):43-56.[doi:10.19721/j.cnki.1671-8879.2026.02.004]
　NIU Dong-yu,LIU Kai,MA Fang-chen,et al.Evaluation on thermal stability, rheological properties and fatigue performance of gussasphalt binder[J].Journal of Chang’an University (Natural Science Edition),2026,46(2):43-56.[doi:10.19721/j.cnki.1671-8879.2026.02.004]
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浇筑式沥青结合料热稳定性、流变特性及疲劳性能评价()
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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第46卷
期数:
2026年2期
页码:
43-56
栏目:
道路工程
出版日期:
2026-04-18

文章信息/Info

Title:
Evaluation on thermal stability, rheological properties and fatigue performance of gussasphalt binder
文章编号:
1671-8879(2026)02-0043-14
作者:
牛冬瑜1; 刘凯1; 马芳臣2; 3; 喇世仁4; 张园5; 赵金龙6; 王迪7
(1. 长安大学 材料科学与工程学院,陕西 西安 710064; 2. 陕西华山路桥集团有限公司,陕西 西安 710016; 3. 陕西正诚路桥工程研究院有限公司,陕西 西安 712000; 4. 青海民族大学 土木与交通工程学院,青海西宁 810007; 5. 华南理工大学 土木与交通学院,广东 广州 510641; 6. 中铁四局集团钢结构建筑有限公司,江苏 南通 226001; 7. 渥太华大学 土木工程系,渥太华 ON K1N 6N5)
Author(s):
NIU Dong-yu1;  LIU Kai1;  MA Fang-chen2; 3;  LA Shi-ren4;  ZHANG Yuan5; ZHAO Jin-long6;  WANG Di7
关键词:
路面工程;  浇筑式沥青结合料;  热解参数;  疲劳寿命;  流变性能;  青川岩沥青;  热重分析
Keywords:
pavement engineering;  gussasphalt binder;  pyrolysis parameter;  fatigue life;  rheological property;  Qingchuan rock asphalt;  thermogravimetric analysis
分类号:
U414
DOI:
10.19721/j.cnki.1671-8879.2026.02.004
文献标志码:
A
摘要:
为探讨浇筑式沥青(GA)结合料在桥面铺装中的应用性能及其改性提升途径,对青川岩沥青(QRA)与苯乙烯-丁二烯嵌段共聚物(SBS)复合改性GA的各项性能展开评价; 选用不同掺量(2%、3%)的SBS与不同掺量(5%、10%、15%)的QRA为改性剂制备GA,通过傅里叶变换红外光谱(FTIR)及热重分析(TGA)测试了2组单独改性与6种复合改性GA的微观特性及热稳定性; 采用多重应力蠕变和恢复(MSCR)试验、低温弯曲流变(BBR)试验、线性振幅扫描(LAS)试验及时间扫描(TS)试验评价了不同QRA和SBS掺量GA的流变性能及疲劳性能。研究结果表明:SBS与QRA对GA的改性为物理共混改性,二者的协同改性作用可显著提升GA的热稳定性和蠕变恢复率,降低其不可恢复蠕变柔量,进而提升其抗变形能力,降低其不可恢复形变; SBS和QRA掺量分别为3%和15%(S-3Q-15)时GA的高温抗车辙性能较优,随着SBS掺量的增加,GA的蠕变劲度降低,蠕变速率提升,低温抗裂性能提升,SBS掺量为3%时GA的低温流变性能提升效果显著; GA的材料完整度随SBS和QRA掺量的增加而提高,且疲劳寿命延长,其中S-3Q-15的疲劳寿命最高,可达到42 300次,且其DSR-C模型的疲劳裂纹计算值最小,为1.191 mm。综上所述,推荐SBS掺量为3%和QRA掺量为15%为GA的最佳掺量组合。
Abstract:
To investigate the application performance of gussasphalt(GA)binder in bridge deck pavement and its modification enhancement approaches, various properties of GA compositely modified with Qingchuan rock asphalt(QRA)and styrene-butadiene block copolymer(SBS)were evaluated. SBSs with different amounts(2% and 3%)and QRAs with different amounts(5%, 10% and 15%)were selected as modifiers to prepare GAs. The microscopic characteristics and thermal stabilities of two groups of individually modified and six groups of compositely modified GAs were tested through the Fourier transform infrared spectroscopy(FTIR)and thermogravimetric analysis(TGA). The rheological and fatigue properties of GAs with different QRA and SBS amounts were evaluated using the multiple stress creep and recovery(MSCR)test, bending beam rheometer(BBR)test, linear amplitude sweep(LAS)test and time sweep(TS)test. The research results indicate that the modification of SBS and QRA to GA is physical blending modification, and their synergistic modification effect can significantly enhance the thermal stability and creep recovery rate of GA, and reduce its non-recoverable creep compliance, thereby enhancing its deformation resistance and reducing its non-recoverable deformation. When the amounts of SBS and QRA are 3% and 15%(S-3Q-15), respectively, the high-temperature rutting resistance of GA is superior. As the amount of SBS increases, the creep stiffness of GA decreases, the creep rate increases, and the low-temperature crack resistance improves. When the amount of SBS is 3%, the low-temperature rheological property of GA enhances significantly. The material integrity of GA increases with the increases in amounts of SBS and QRA, and the fatigue life prolongs, among which the S-3Q-15 has the highest fatigue life, reaching 42 300 cycles, and the fatigue crack calculation value of DSR-C model for S-3Q-15 is the smallest, at 1.191 mm. In summary, it is recommended that the SBS amount of 3% and the QRA amount of 15% is the optimal amount combination for GA.7 tabs, 14 figs, 30 refs.

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备注/Memo

备注/Memo:
收稿日期:2025-09-12
基金项目:国家自然科学基金项目(52578498); 青海省科技计划项目(2025-QY-229)
作者简介:牛冬瑜(1984-),男,陕西西安人,副教授,工学博士,从事道路材料研究,E-mail:niudongyu_1984@163.com。
更新日期/Last Update: 2026-04-20