Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/107166
Title: Multi-Analysis Characterisation of a Vernacular House in Doha (Qatar): Petrography and Petrophysics of its Construction Materials
Authors: Freire-Lista, David Martín 
Kahraman, Gizem
Carter, Robert
Keywords: mortar; heritage; conservation; building; geoheritage
Issue Date: 2019
Publisher: MDPI
Project: QNRF-funded Origins of Doha and Qatar Project (NPRP 5-421-6-010 and NPRP 8-1655-6-064) in collaboration with Qatar Museums and Qatar Foundation 
Serial title, monograph or event: Minerals
Volume: 9
Issue: 4
Abstract: This study characterises the original construction materials (building stones and mortars) of a collapsed two-storey colonnaded structure in the Ismail Mandani house, located in the old city centre of Doha (Qatar). Results were drawn based on interpretation and integration of historical, in situ observations and analytical data. The mortars and stones were characterised following a multidisciplinary approach, combining macroscopic observation with petrographic microscopy, mineralogical analysis (X-ray di raction) and elemental analysis (handheld X-ray fluorescence) of samples. Moreover, hydric properties, ultrasonic pulse velocity and colour of representative samples of the house were studied. The results revealed the use of two types of stones and three di erent types of gypsum mortars. The original construction materials came from nearby coastal stones. Gypsum of the most used mortar had a calcination temperature between 120 and 160 C and its colour was produced by lumps with higher Fe content. The materials’ e ective porosity and water absorption were high, and their ultrasonic pulse velocity was low. These petrophysical results indicated they had low quality for construction purposes. The composition and colour of the original construction materials were quantified, which will allow the reproduction of their aesthetic characteristics and improvement of their quality in future reconstruction works.
URI: https://hdl.handle.net/10316/107166
ISSN: 2075-163X
DOI: 10.3390/min9040241
Rights: openAccess
Appears in Collections:I&D CGUC - Artigos em Revistas Internacionais

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