TY - JOUR
T1 - Mineralogy, chemistry and rock mechanic parameters of katoite-bearing rock from the Hatrurim Basin, Israel
AU - Vapnik, Yevgeny
AU - Palchik, Vyacheslav
AU - Galuskina, Irina
AU - Banasik, Kamila
AU - Krzykawski, Tomasz
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/11/1
Y1 - 2018/11/1
N2 - 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.
AB - 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.
KW - Belite sulfoaluminate concrete
KW - Composition
KW - Katoite-bearing rock
KW - Mineralogy
KW - Pyrometamorphism
KW - Strength parameters
UR - http://www.scopus.com/inward/record.url?scp=85049327560&partnerID=8YFLogxK
U2 - 10.1016/j.jafrearsci.2018.06.020
DO - 10.1016/j.jafrearsci.2018.06.020
M3 - Article
AN - SCOPUS:85049327560
SN - 1464-343X
VL - 147
SP - 322
EP - 330
JO - Journal of African Earth Sciences
JF - Journal of African Earth Sciences
ER -