DOI: 10.5937/jaes0-28742
This is an open access article distributed under the CC BY 4.0
Volume 19 article 800 pages: 356-362
Autoclaved aerated concrete (called Thermostone in Iraq) is one of the popular building materials that are used in
various purposes in construction industries. It is factory-made material that can be moulded into blocks which can
be used in framework buildings. However, these buildings are under the risk of fire since it has different cusses such
as arson and electrical short circuit. It is important to find ways to improve counter such phenomenon. Therefore the
objective of this paper is investigating the fire resistance performance of Thermostone with and without plastering.
Five different samples were used for the test, four of them were covered with different types of plastering. Three tests
were employed for this study: Compressive, absorption, and density test. For all tests, the samples were exposed to
elevated temperatures from 250°C to 900°C. It was shown that the compressive strength are reduced when exposed
to high temperature by up to 75%, however the air-cooled samples are less affected by approximately 15%. Furthermore,
plastered samples has lower absorption rate than non-plastered ones. Finally, density decrease with heat by
up 10% approximately.
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