Estimating the Physico-Mechanical Properties of Pyroclastic Rocks from Electrical Resistivity

KAHRAMAN S.

PURE AND APPLIED GEOPHYSICS, vol.179, no.1, pp.301-309, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 179 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.1007/s00024-021-02898-6
  • Journal Name: PURE AND APPLIED GEOPHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Compendex, Geobase, INSPEC
  • Page Numbers: pp.301-309
  • Keywords: Electrical resistivity, rock properties, regression analysis, pyroclastic rocks
  • Hacettepe University Affiliated: Yes

Abstract

Predicting the properties of rocks is aided by the use of indirect methods such as electrical resistivity. This article investigates the predictability of the physical and mechanical properties of pyroclastic rocks from electrical resistivity tests. Twenty-four different pyroclastic rocks were collected, and physico-mechanical and electrical resistivity tests were carried out in the laboratory. The experimental data were assessed using regression analysis. Simple regression analysis showed that there were generally strong correlations between the resistivity and rock properties including uniaxial compressive strength, Brazilian tensile strength, density, and porosity. Multiple regression equations were also derived for the prediction of compressive and tensile strength. The statistical test showed that the derived equations were valid. Therefore, it can be concluded that electrical resistivity tests can be effectively used to estimate the physico-mechanical properties of pyroclastic rocks.