Sustainable Use of Traditional Geomaterials in Construction Practice
Geomaterials derived from the Earth’s crust and used in construction after appropriate processing are among the earliest raw materials exploited, processed and used by humans. Their numerous functional properties include accessibility, workability and serviceability, and these are explored within this volume. In modern society, sustainable use of raw materials, specifically those exploited in large volumes such as geomaterials for construction, raises questions of reducing extraction of primary resources and thus minimizing impacts on natural systems, and also employment of materials and technologies to lower emissions of deleterious substances into the atmosphere. This will be possible only if we fully understand the properties, processing and mode of use of traditional geomaterials. Although most of the papers within this volume were written by geologists, the contributions will also be of interest to those working in cultural heritage, monument conservation, civil engineering and architecture.
New experimental method to study the combined effect of temperature and salt weathering
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Published:January 01, 2016
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CiteCitation
Ayman Hamed, Nevin Aly, Miguel Gomez-Heras, Monica Alvarez De Buergo, 2016. "New experimental method to study the combined effect of temperature and salt weathering", Sustainable Use of Traditional Geomaterials in Construction Practice, R. Přikryl, Á. Török, M. Gomez-Heras, K. Miskovsky, M. Theodoridou
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Abstract
This study presents a new experimental chamber, which builds upon previous methods of testing salt weathering. This method is based on capillary rising in samples, as this corresponds to the actual imbibition process in building stone. This set-up allows control in setting both a specific thermal regime and cycling temperatures. Some of the significant additions of this experimental set-up are: continuous flow of the saline solution, as the samples will be fed with a constant concentration throughout the experiments; and continuous monitoring of environmental temperature, relative humidity and sample weights. Recorded results in this research belong to limestone samples from Mokattam, Cairo. Results are also considered as a proof to the practical advantages of the experimental chamber in salt-weathering studies and its environmental controls.
- accuracy
- Africa
- aqueous solutions
- building stone
- Cairo Egypt
- capillarity
- carbonate rocks
- chemically precipitated rocks
- civil engineering
- construction materials
- cores
- design
- Egypt
- encrustations
- evaporites
- experimental studies
- humidity
- imbibition
- infrastructure
- instruments
- laboratory studies
- limestone
- monitoring
- new methods
- North Africa
- salt
- sample preparation
- sampling
- sedimentary rocks
- simulation
- techniques
- temperature
- testing
- weathering
- Mokattam
- efflorescence
- salt decay