• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Gong, Xing (Gong, Xing.) | Liu, Quantao (Liu, Quantao.) | Zou, Yingxue (Zou, Yingxue.) | Liu, Xuefei (Liu, Xuefei.) | Wang, Huan (Wang, Huan.) | Wan, Pei (Wan, Pei.) | Cao, Zhilong (Cao, Zhilong.) | Wu, Shaopeng (Wu, Shaopeng.)

收录:

Scopus SCIE

摘要:

The poor adhesion of asphalt-granite limits the application of granite. This research aims to enhance the adhesion of asphalt and granite by establishing chemical connections between the hydroxyl groups on granite surface and the incompletely reacted isocyanate groups in polyurethane (PU) modified asphalt. For this purpose, end-capped PU modified asphalt (PUMA) was prepared, the adhesion mechanism between PUMA and granite was analyzed by Raman spectroscopy, the adhesion properties between PUMA and granite at different curing periods were evaluated by boiling and pull-out tests, and the wettability of PUMA on granite and its moisture sensitivity were evaluated using surface free energy (SFE) method. The findings suggested that the incompletely reacted isocyanate groups in PUMA can establish a chemical connection with the hydroxyl groups on the surface of granite. The adhesion between asphalt and granite can be greatly improved by the addition of PU, and this improvement is amplified as the curing time is extended. When the curing time is extended to 3 days, the fracture mode between asphalt and granite changed from adhesive failure to cohesive failure, and after 15 days of curing, the coating ratio of PUMA on granite following the water boiling test can be raised by 28.11% in comparison to the base asphalt. The water damage resistance of PUMA-granite system can be increased by adding PU and the adhesion work and combination ratio of the freshly prepared PUMA were increased by 55.91% and 79.45%, respectively, as compared to base asphalt. This study has great significance for enhancing the adhesion between asphalt and granite and encouraging granite application.

关键词:

Granite Polyurethane modified asphalt (PUMA) Interfacial adhesion End-capped polyurethane

作者机构:

  • [ 1 ] [Gong, Xing]Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
  • [ 2 ] [Liu, Quantao]Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
  • [ 3 ] [Zou, Yingxue]Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
  • [ 4 ] [Wang, Huan]Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
  • [ 5 ] [Wan, Pei]Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
  • [ 6 ] [Wu, Shaopeng]Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
  • [ 7 ] [Liu, Quantao]Wuhan Univ Technol, Adv Engn Technol Res Inst Zhongshan City, Zhongshan 528400, Peoples R China
  • [ 8 ] [Liu, Xuefei]Univ Sheffield, Fac Engn, Dept Civil & Struct Engn, Western Bank, Sheffield S102TN, England
  • [ 9 ] [Cao, Zhilong]Beijing Univ Technol, Dept Rd & Railway Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • [Liu, Quantao]Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China;;[Liu, Quantao]Wuhan Univ Technol, Adv Engn Technol Res Inst Zhongshan City, Zhongshan 528400, Peoples R China

查看成果更多字段

相关关键词:

来源 :

JOURNAL OF MATERIALS IN CIVIL ENGINEERING

ISSN: 0899-1561

年份: 2025

期: 1

卷: 37

3 . 2 0 0

JCR@2022

被引次数:

WoS核心集被引频次:

SCOPUS被引频次:

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

归属院系:

在线人数/总访问数:636/4949225
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司