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作者:

Zhou, Changjun (Zhou, Changjun.) | Lan, Guoshu (Lan, Guoshu.) | Cao, Peng (Cao, Peng.) | Tang, Changbing (Tang, Changbing.) | Cao, Qi (Cao, Qi.) | Xu, Yunxi (Xu, Yunxi.) | Feng, Decheng (Feng, Decheng.)

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EI Scopus SCIE

摘要:

The freeze-thaw (FT) damage is a potential severe distress on concrete pavements in seasonal frozen regions. This study focuses on the FT resistance of a two-lift concrete (2LC) pavement, including a polypropylene fiber reinforced concrete (PFRC) top lift and a conventional portland cement concrete (PCC) bottom lift. The rapid FT test was conducted on PCC, PFRC, and 2LC specimens and the relative dynamic modulus and mass loss were measured. The mechanical properties of concrete materials were investigated in laboratory, including compressive, tensile, flexural strengths, and flexural modulus. In the end, the influence of FT damages of concrete materials on pavement responses was evaluated. It is found that with the addition of the PF, the PFRC and the 2LC exhibited better mechanical properties and less mass loss than the PCC after FT cycles. The PFRC and the 2LC behaved better FT resistance than the PCC. The Voigt model can predict mechanical properties of 2LC in freeze-thaw process. Through pavement response analysis, the FT damage was found shortening the service life of 2LCP. In summary, the proposed 2LC pavement was justified a better alternate concrete pavement type on resisting the FT environment in seasonal frozen areas. © 2020 Elsevier Ltd

关键词:

Reinforced plastics Mechanical properties Freezing Fiber reinforced concrete Polypropylenes Concrete pavements Thawing Portland cement

作者机构:

  • [ 1 ] [Zhou, Changjun]School of Transportation and Logistics, Dalian University of Technology, Dalian; 116024, China
  • [ 2 ] [Lan, Guoshu]Guangxi Communications Design Group Corporation Limited, Nanning; 530029, China
  • [ 3 ] [Cao, Peng]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100022, China
  • [ 4 ] [Tang, Changbing]Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu; 610213, China
  • [ 5 ] [Cao, Qi]School of Civil Engineering, Dalian University of Technology, Dalian; 116024, China
  • [ 6 ] [Xu, Yunxi]National Engineering Laboratory for Surface Transportation Weather Impacts Prevention, Broadvision Engineering Consultants, Kunming; 650041, China
  • [ 7 ] [Feng, Decheng]School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin; 150090, China

通讯作者信息:

  • [zhou, changjun]school of transportation and logistics, dalian university of technology, dalian; 116024, china

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来源 :

Construction and Building Materials

ISSN: 0950-0618

年份: 2020

卷: 262

7 . 4 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:169

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 15

ESI高被引论文在榜: 0 展开所有

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