Electrical impedance spectroscopy measurements to estimate the uniaxial compressive strength of a fault breccia

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KAHRAMAN S., ALBER M.

BULLETIN OF MATERIALS SCIENCE, vol.37, no.6, pp.1543-1550, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 6
  • Publication Date: 2014
  • Doi Number: 10.1007/s12034-014-0109-z
  • Journal Name: BULLETIN OF MATERIALS SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1543-1550
  • Keywords: Fault breccia, uniaxial compressive strength, electrical resistivity, ARTIFICIAL NEURAL-NETWORKS, GEOMECHANICAL PROPERTIES, INDUCED POLARIZATION, CATACLASTIC ROCKS, POROUS ROCKS, RESISTIVITY, CONDUCTIVITY, BIMROCK, ZONE
  • Hacettepe University Affiliated: Yes

Abstract

Fault breccias are usually not suitable for preparing smooth specimens or else the preparation of such specimens is tedious, time consuming and expensive. To develop a predictive model for the uniaxial compressive strength (UCS) of a fault breccia from electrical resistivity values obtained from the electrical impedance spectroscopy measurements, twenty-four samples of a fault breccia were tested in the laboratory. The UCS values were correlated with corresponding resistivity values and a strong correlation between them could not be found. However, a strong correlation was found for the samples having volumetric block proportion (VBP) of 25-75%. In addition, it was seen that VBP strongly correlated with resistivity. It was concluded that the UCS of the tested breccia can be estimated from resistivity for the samples having VBP of 25-75%.