Thermal, structural and mechanical characterization of the whitish Arequipa Airport Ignimbrite

Abstract 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...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1841; no. 1; p. 12010
Main Authors Espinoza, F S, Horn, M, Gomez, M M, Solis, J L
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2021
Subjects
Airports
Biotite
Compressive strength
Construction materials
Cristobalite
Mechanical properties
Physics
Plagioclase
Structural analysis
Thermal conductivity
Thermal diffusivity
Thermal insulation
Water absorption
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Summary:Abstract 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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1841/1/012010