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SPECIFICATIONS FOR EXTERNAL RENDERS AND INTERNAL PLASTERS: A REVIEW ON DURABILITY ASSESSMENT



Author(s): Sá, A. V., Abrantes, V. and Sousa, H.
Paper category: Conference
Book title: XIII International Conference on Durability of Building Materials and Components - XIII DBMC
Editor(s): Marco Quattrone, Vanderley M. John
Print ISBN: none
e-ISBN: 978-2-35158-149-0
Publication year: 2015
Pages: 818-825
Total Pages: 8
Language: English


Abstract: The specifications of the construction materials and the normalization of test methods are essential in perfecting the manufacturing processes, in supporting selection and acquisition and in those products quality control.

The properties of factory made rendering and plastering mortars used on walls, ceilings, columns and partitions are normalized. The specifications include the essential definitions and the final performance requirements. They also comprise the relevant characteristics to designate the different categories of mortars. Each category of mortars entails a set of essential requirements in which the evaluation and test method is identified.

However, in the last few years, the market has evolved and the properties of mortars have been being altered and adapted to satisfy new consumption demands. Repair mortars, plasters for interior temperature or interior relative humidity control are being created. The development of a cement and lime based plaster containing phase change materials (PCM) is an example of a new coating material for walls and ceilings designed for controlling interior temperatures of buildings.

With this background, the purpose of this paper is to present the current specifications and test methods established by CEN in the ambit of external renders and internal plasters, and suggest methods for the evaluation of particular requirements for the new developed materials.

With this paper, the authors wish to bring attention to the need of broadening the scope of the present normalization, hoping to contribute in this way to the evolution of the manufacturing processes and to the improvement of the finished products quality.


Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00