Paper Title:
Experimental Study on Polymer Mass Used to Repair Damaged Structures
  Abstract

A new method of repairing damaged structures by injecting the cracks with specially designed polymer mass (flexible two-component grout based on polyurethane resin) has been recently proposed. The technique is mainly dedicated to damaged masonries, especially historical structures where minimum intervention is permitted. The cracks are filled with the special injection, forming the flexible joints bonding the disrupted structural elements. The aim of the present paper is to show the results of the experimental study focused on properties of the polymer mass used for the injections. First, the material has been subjected to static compression tests. Then, the polymer mass has been examined dynamically under harmonic excitations with different frequencies and strain levels. The results of the study indicate that the tested polymer mass shows highly non-linear behaviour with relatively low resistance under small displacements and stiffening effect for higher strain levels. Moreover, it is substantially dependent on the strain rate having higher initial deformation modulus for higher strain rate values. Finally, the observed hysteretic behaviour of the material confirms its potential to dissipate the energy during vibrations preventing from further structural damage in the case of dynamic loading.

  Info
Periodical
Key Engineering Materials (Volumes 488-489)
Edited by
Z. Tonković and M.H. Aliabadi
Pages
347-350
DOI
10.4028/www.scientific.net/KEM.488-489.347
Citation
T. Falborski, R. Jankowski, A. Kwiecień, "Experimental Study on Polymer Mass Used to Repair Damaged Structures", Key Engineering Materials, Vols. 488-489, pp. 347-350, 2012
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zbigniew Zembaty, Marcin Kowalski
Abstract:The purpose of this paper is to report selected results of an experiment in which two, natural size r/c frames were put on shaking table and...
735
Authors: Meng Hong Wang, Fei Da Song, Peng Zhuang, Song Song Shi
Chapter 1: Civil Engineering
Abstract:Analysis earthquake response of the long-span tube shell structure under multi-support excitations. The response of the long-span structure...
751
Authors: Adnan Rebei, Khalid Al-Saif
Chapter 7: Vibration Analysis and Measurement
Abstract:A Fourier Transform method is applied to determine the displacements of a cantilever beam subjected to a multi-frequency excitations at the...
465
Authors: Ya Jie Wu, Xiao Bin Song, Lie Luo
Chapter 2: Seismic Engineering
Abstract:To investigate the seismic performance of the traditional Chinese timber structure, a one-fifth scale model of a seven-story pavilion-style...
119