Open AccessThermal, structural and mechanical characterization of the whitish Arequipa Airport Ignimbrite
Author(s) -
F S Espinoza,
Manfred Horn,
Mónica Gómez,
J. L. Solis
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1841/1/012010
Subject(s) - plagioclase , pyroclastic rock , geology , thermal diffusivity , thermal conductivity , sanidine , quartz , mineralogy , geochemistry , materials science , volcano , composite material , physics , quantum mechanics
The white unit of Arequipa Airport Ignimbrite is a pyroclastic rock that emerges in the deposits of Arequipa and is used as a construction material since colonial times and locally called “sillar” or “ashlar”. The thermal conductivity and thermal diffusivity measured according to ASTM C 177 and Ångström’s method were 0.27 W/mK and 5.67×10 −7 m 2 /s, respectively. The compressive strength and water absorption were 8.92 MPa and 17.2 %. The main crystalline phases of the ignimbrite are plagioclase, cristobalite, sanidine and biotite. The white ignimbrite has good thermal insulation and good mechanical properties.