본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Construction & building materials v.134, 2017년, pp.311 - 323   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

On the evaluation of interface quality in concrete repair system by means of impact-echo signal analysis

Garbacz, Andrzej (Warsaw University of Technology, Faculty of Civil Engineering, Department of Building Materials Engineering, Al. Armii Ludowej 16, PL 00637 Warsaw, Poland ) ; Piotrowski, Tomasz (Warsaw University of Technology, Faculty of Civil Engineering, Department of Building Materials Engineering, Al. Armii Ludowej 16, PL 00637 Warsaw, Poland ) ; Courard, Luc (University of Liège, Faculty of Applied Sciences, ArGEnCO Department, Allée de la découverte, 9, 4000 Liège, Belgium ) ; Kwaśniewski, Lesław (Warsaw University of Technology, Faculty of Civil Engineering, Department of Theoretical Mechanics and Pavement Modelling, Al. Armii Ludowej 16, PL 00637 Warsaw, Poland ) ;
  • 초록  

    Abstract According to Concrete Repair Manual as well as ACI 562-16 and European EN 1504-10 standards, a bond strength as a measure of adhesion is one the main feature of repair system necessary to be assessed. The most common laboratory and engineering method for bond strength evaluation is pull-off test. This is however a semi-destructive method that needs a repair in a place of measurement. Recently, the great interest in nondestructive techniques (NDT) development is noted. Impact-echo (IE) is considered as one of the most promising methods for this purpose. In this paper, the study on the usability the IE test based on frequency spectrum analysis for bond strength evaluation is analyzed. Both Finite Element Method (FEM) simulation and experimental tests were performed in order to obtain potential relations between IE frequency spectrum and parameters characterizing concrete substrate quality that may affect the final bond strength and the real value of pull-off bond strength measured on samples as well. It was concluded that the IE method can be a useful tool for interface quality and bond strength evaluations in concrete repair system. However, more complex signal analysis, e.g. wavelet analysis, should be considered in the future. Highlights Concrete substrate roughness and microcracking influence stress wave propagation. No relation between bond strength and amplitudes of frequency peaks in IE spectrum. Proposed FE model is useful for simulation of stress wave propagation in repair systems with different interface quality. Bond strength estimation with IE needs advanced signal analysis e.g. wavelet analysis.


  • 주제어

    Concrete repair .   Adhesion .   Concrete substrate quality .   Nondestructive testing .   Frequency spectrum .   Wavelet analysis.  

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기