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Abstract

A new type of high-strength asphalt was prepared by adding high-strength modifiers and self-developed anti-rutting agents to 70# Esso heavy-duty matrix asphalt. The SHRP test and the road performance of the mixture were studied. The results show that after adding high-strength modifiers and self-developed anti-rutting agents, the anti-rutting factor and Brookfield viscosity of the new high-strength asphalt binder have been significantly improved compared with SBS modified asphalt and 70# Esso heavy-duty matrix asphalt. The PG grade of the high-strength asphalt has been raised from PG 64-22 of 70# Esso heavy-duty matrix asphalt to PG82-22, an increase of four grades. In terms of road performance, compared with SBS modified asphalt mixture, the stability of the new high-strength asphalt mixture has increased by nearly 13%; the freeze-thaw splitting ratio has increased by 2.5%, and the dynamic stability has been significantly improved. Combined with the actual engineering application, random inspections are conducted on the mixture of the demonstration section. The gradation of the mixture, the water seepage coefficient, and other indicators of the demonstration section all meet the design requirements. For high-frequency and heavy-load sections in the hot and humid regions of the south, the new type of high-strength asphalt with excellent high-temperature resistance and water damage resistance has a broader application prospect.

Publication Date

6-18-2022

DOI

10.14048/j.issn.1671-2579.2022.03.036

First Page

202

Last Page

209

Submission Date

May 2025

Reference

[1] 柳叶芳, 郝永峰, 王法雨, 等. 天然岩沥青改性沥青性能的SHRP试验研究[J]. 现代交通技术, 2011, 8(1): 4-6, 19. LIU Yefang, HAO Yongfeng, WANG Fayu, et al. SHRP experiment research on natural rock asphalt modified bitumen[J]. Modern Transportation Technology, 2011, 8(1): 4-6, 19. [2] 赵晓康, 刘晨, 郑晨, 等. 基于DSR的沥青SHRP试验指标研究[J]. 河南科技, 2015(22): 76-77. Zhao Xiaokang, Liu Chen, Zheng Chen, et al. Study on SHRP test indicators of asphalt based on DSR[J]. Henan Science and Technology, 2015(22): 76-77. [3] 宋志宇, 陈兆坤. BRA(布敦岩沥青)改性沥青常规试验指标与SHRP试验结果的比较[J]. 科学之友, 2010(11): 13-14. SONG Zhiyu, CHEN Zhaokun. BRA modified pitch routine tests the comparison of the index and SHRP result of the test[J]. Friend of Science Amateurs, 2010(11): 13-14. [4] 沈金安. SHRP沥青新标准补充说明[J]. 石油沥青, 1993, 7(3): 55-59. SHEN Jin’an. Supplementary explanation of new SHRP asphalt standard[J]. Petroleum Asphalt, 1993, 7(3): 55-59. [5] Edward Harrigan, 沈金安. SHRP沥青标准征求意见稿[J]. 石油沥青, 1991, 5(4): 43-47+5. HARRIGAN Edward, SHEN Jin’an. Draft for comment on SHRP asphalt standards[J].Petroleum Asphalt, 1991, 5(4): 43-47+5. [6] 丁红霞, 程国香, 张建峰. SHRP评价改性沥青的性能研究[J]. 石油沥青, 2012, 26(4): 31-34. DING Hongxia, CHENG Guoxiang, ZHANG Jianfeng. Performance evaluation of modified asphalt by SHRP[J]. Petroleum Asphalt, 2012, 26(4): 31-34. [7] 陈静云, 赵慧敏. 用SHRP方法评价再生沥青性能[J]. 大连理工大学学报, 2011, 51(1): 68-72. CHEN Jingyun, ZHAO Huimin. Performance evaluation of recycle asphalt by SHRP[J]. Journal of Dalian University of Technology, 2011, 51(1): 68-72. [8] 李海军, 黄晓明. SHRP沥青性能分级量度的探讨[J]. 公路交通科技, 2006, 23(2): 36-38. Li Haijun, Huang Xiaoming. Discussion on performance grading metrics of SHRP asphalt[J]. Journal of Highway and Transportation Research and Development, 2006, 23(2): 36-38. [9] 冯中良, 贾渝, 王瑞强. SHRP沥青数据库蜡含量数据分析[J]. 公路, 2008, 53(10): 211-213. FENG Zhongliang, JIA Yu, WANG Ruiqiang. Analysis of wax content data in SHRP asphalt database[J]. Highway, 2008, 53(10): 211-213. [10] 郑南翔, 张霞, 李安. 对SHRP沥青分级存在问题的探讨[J]. 公路交通科技, 2004, 21(9): 44-46. ZHENG Nanxiang, ZHANG Xia, LI An. Discuss of problems in SHRP performance grading system[J]. Journal of Highway and Transportation Research and Development, 2004, 21(9): 44-46. [11] 樊永革, 樊鸿. 美国SHRP沥青混合料设计及主要试验方法简介[J]. 黑龙江交通科技, 2003, 26(10): 25-26. Fan Yongge, Fan Hong. Introduction to SHRP Asphalt Mixture Design and Key Test Methods[J]. Heilongjiang Transportation Technology, 2003, 26(10): 25-26. [12] 张国辉, 陈波, 郭宏斌. SHRP规范检测标准在长余高速公路改性沥青路面施工中的应用[J]. 东北公路, 2003, 26(3): 49-51. ZHANG Guohui, CHEN Bo, GUO Hongbin. The application of SHRP measuring standard in Chang-yu highway[J]. Northeastern Highway, 2003, 26(3): 49-51. [13] 吕伟民. 热拌高强沥青混凝土的配制原理及其力学特性[J]. 同济大学学报(自然科学版), 1995, 23(5): 519-523. LYU Weimin. Principles of compounding hot mixing high strength asphalt concrete and its mechanics characteristics[J]. Journal of Tongji University (Natural Science), 1995, 23(5): 519-523. [14] 吕伟民, 郭志印. 高强沥青混凝土的配制及其特性[J]. 中国公路学报, 1996, 9(1): 8-13. LYU Weimin, GUO Zhiyin. Compounding of the high strength asphalt concrete and its properties[J]. China Journal of Highway and Transport, 1996, 9(1): 8-13. [15] 交通运输部公路科学研究院. 公路工程沥青及沥青混合料试验规程: JTG E20—2011[S]. 北京: 人民交通出版社, 2011. Research Institute of Highway, Ministry of Transport. Test methods of bitumen and bituminous mixtures for highway engineering: JTG E20—2011 [S]. Beijing: China Communications Press, 2011. [16] 覃峰. 蔗渣纤维沥青混合料超薄路面层抗腐性能试验研究[J]. 新型建筑材料, 2017, 44(2): 10-14. QIN Feng. Experimental study on corrosion-resistance of ultra-thin pavement of sugarcane fiber asphalt mixture[J]. New Building Materials, 2017, 44(2): 10-14.

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