Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru

Version 1 : Received: 26 October 2021 / Approved: 28 October 2021 / Online: 28 October 2021 (07:39:30 CEST)

A peer-reviewed article of this Preprint also exists.

Bustamante, R.; Vazquez, P.; Prendes, N. Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru. Appl. Sci. 2021, 11, 10571. Bustamante, R.; Vazquez, P.; Prendes, N. Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru. Appl. Sci. 2021, 11, 10571.

Journal reference: Appl. Sci. 2021, 11, 10571
DOI: 10.3390/app112210571

Abstract

The petrographic and petrophysical characteristics of three varieties of ignimbrites used in the architectural heritage of Arequipa (southwest Peru) are analyzed. The modal classification QAFP and TAS diagram discriminate their dacitic nature. Mercury injection porometry revealed very high porosity: 46.5% for white and beige ignimbrites and 35.5% for the pink variety. Ignimbrites contain intrusions of vulcanodetrital fragments and vacuoles that influence their predominantly non-linear mechanical behavior. Results of water absorption by capillarity (C) and ultrasound pulse velocity (UPV) demonstrated a slight anisotropy for the beige variety and near isotropy for white and pink ignimbrites, which justify the randomness of the application of the ashlars in the masonry and in the selection of the faces to carve. Surfaces with hollows in the white and beige ignimbrites are the result of the erosion of the acicular pumice that fills the vacuoles.

Keywords

ignimbrite pe; petrography; physico-mechanical properties; color; cultural heritage

Subject

MATERIALS SCIENCE, General Materials Science

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.