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author:

Dong, Hongjun (Dong, Hongjun.) [1] | Zhang, Canlin (Zhang, Canlin.) [2] (Scholars:章灿林) | Weng, Yiwei (Weng, Yiwei.) [3] | Wang, Ting (Wang, Ting.) [4] (Scholars:汪婷) | Yang, Shuai (Yang, Shuai.) [5] | Ma, Shijie (Ma, Shijie.) [6] | Chen, Yu (Chen, Yu.) [7] (Scholars:陈誉)

Indexed by:

EI Scopus SCIE

Abstract:

3-mercaptopropyltriethoxysilane (KH580) surface organic layered double hydroxides (LDHs) was synthesized to simultaneously bolster the anti-ageing property of SBS copolymer modified bitumen (SMB). The X-ray diffraction and X-ray photoelectron spectroscopy proved that the KH580 was successfully grafted on the surface of LDHs (KH-LDHs). After KH580 surface organic modification, the aggregation and hydrophilicity of LDHs were significantly restrained, and the UV absorbing capacity was concurrently enhanced. Compared with LDHs, KHLDHs exhibited superior compatibility within SMB and could improve the high-temperature performance and elastic behavior of SMB much better. After ageing, SMB became stiff and crisp, the rheological properties worsened, and the number of oxygen-containing groups (C--O and S--O) in SMB experienced a considerable rise. Simultaneously, SBS copolymer also degraded during the ageing process, further deteriorating the performance of SMB. LDHs was able to inhibit the ageing repercussions on the rheological properties, chemical structure and SBS copolymer, thus bolstering both the anti-ageing property of SMB and the degradation resistance of SBS copolymer. Furthermore, the role of LDHs would be dramatically strengthened by KH580 surface organic modification.

Keyword:

Anti-ageing property Bitumen Degradation resistance Layered double hydroxides SBS copolymer Surface organic modification

Community:

  • [ 1 ] [Dong, Hongjun]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Zhang, Canlin]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Yang, Shuai]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
  • [ 4 ] [Chen, Yu]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
  • [ 5 ] [Dong, Hongjun]Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong 999077, Peoples R China
  • [ 6 ] [Weng, Yiwei]Hong Kong Polytech Univ, Dept Bldg & Real Estate, Hong Kong 999077, Peoples R China
  • [ 7 ] [Wang, Ting]Fuzhou Univ, Fujian Coll Assoc Instrumental Anal Ctr, Fuzhou 350108, Peoples R China
  • [ 8 ] [Zhang, Canlin]Fujian South Highway Machinery Co, Postdoctoral Work Stn, Green Bldg Mat Intelligent Equipment Res Inst, Quanzhou 362021, Peoples R China
  • [ 9 ] [Ma, Shijie]Fuzhou Univ, Sch Adv Mfg, Quanzhou 362200, Peoples R China

Reprint 's Address:

  • 章灿林

    [Zhang, Canlin]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China

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Source :

CONSTRUCTION AND BUILDING MATERIALS

ISSN: 0950-0618

Year: 2025

Volume: 463

7 . 4 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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