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Study on shear bond behavior of PUFA-to-concrete interface

  • School of Transportation Science and Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Polyurethane fly-ash (PUFA) composite material is a new type of reinforcement material. It has the advantages of high strength, light weight, and good adhesion to concrete. It has been applied in bridge reinforcement in recent years. The interfacial adhesion between PUFA and concrete is a key factor in the success or failure of reinforcement. In this paper, the shear-peeling behavior of the interface between PUFA material and concrete is studied experimentally. The test was designed by orthogonal test design method, and the test piece was made into 25 in-plane shear-peeled test pieces. Through the interface shear peel test, the bond strength, and failure mode of PUFA-concrete interface layer structure and in-plane shear were obtained, and the bond slip curve was obtained based on the load slip curve by fitting method. The research results provide a reference for PUFA engineering applications.

Original languageEnglish
Title of host publicationCICTP 2019
Subtitle of host publicationTransportation in China - Connecting the World - Proceedings of the 19th COTA International Conference of Transportation Professionals
EditorsLei Zhang, Jianming Ma, Pan Liu, Guangjun Zhang
PublisherAmerican Society of Civil Engineers (ASCE)
Pages271-277
Number of pages7
ISBN (Electronic)9780784482292
DOIs
StatePublished - 2019
Externally publishedYes
Event19th COTA International Conference of Transportation Professionals: Transportation in China - Connecting the World, CICTP 2019 - Nanjing, China
Duration: 6 Jul 20198 Jul 2019

Publication series

NameCICTP 2019: Transportation in China - Connecting the World - Proceedings of the 19th COTA International Conference of Transportation Professionals

Conference

Conference19th COTA International Conference of Transportation Professionals: Transportation in China - Connecting the World, CICTP 2019
Country/TerritoryChina
CityNanjing
Period6/07/198/07/19

Keywords

  • Bond-slip
  • Concrete
  • Interface
  • PUFA
  • Shear peeling

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