Mineralogy, chemistry and rock mechanic parameters of katoite-bearing rock from the Hatrurim Basin, Israel

Yevgeny Vapnik, Vyacheslav Palchik, Irina Galuskina, Kamila Banasik, Tomasz Krzykawski

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Katoite-bearing rock was revealed in the Hatrurim Basin, Israel. The rock formed by hydration of pyrometamorphic calc-silicate assemblages at temperatures higher than 200 °C. The likely age of the hydration process is Miocene, about 6.2 Ma. The main phases of katoite-bearing rock are minerals of the katoite-grossular series, calcium hydrosilicates, fluorapatite and carbonate. Chemistry and mineralogy of katoite-bearing rock resembles belite sulfoaluminate concrete. Studied samples show two sets of porosities, which are low and high, between 22 and 28% and between 29 and 39%, respectively. Increased porosity characterizes non-weathered katoite-bearing samples, whereas decreased porosity is linked to carbonation during weathering. Katoite remained stable in spite of natural alkaline leaching. Although high porosity samples display decreasing strength parameters, most observed rock mechanic characteristics are comparable to modern-day concrete. We suggest that obtained data on natural katoite-bearing rock can simulate the longevity and durability of belite sulfoaluminate concrete.

Original languageEnglish
Pages (from-to)322-330
Number of pages9
JournalJournal of African Earth Sciences
Volume147
DOIs
StatePublished - 1 Nov 2018

Keywords

  • Belite sulfoaluminate concrete
  • Composition
  • Katoite-bearing rock
  • Mineralogy
  • Pyrometamorphism
  • Strength parameters

ASJC Scopus subject areas

  • Geology
  • Earth-Surface Processes

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