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Erschienen in:
2016 | OriginalPaper | Buchkapitel
Eco-Efficient Earthen Plasters: The Influence of the Addition of Natural Fibers
verfasst von : José Lima, Paulina Faria
Erschienen in: Natural Fibres: Advances in Science and Technology Towards Industrial Applications
Verlag: Springer Netherlands
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Abstract
Clayish earth-based mortars are being recognized, all over the world, as eco-efficient products for plastering. Apart from being a product with low embodied energy when compared to other types of plasters, their application on the interior surface of walls may give a strong contribution for the health and comfort of inhabitants. As part of an ongoing research regarding earth-based plasters this work assesses the influence of the addition of two types of natural fibers—oat straw and typha fiber-wool—on the characteristics of plastering mortars made with a clayish earth. Mechanical and physical characteristics were tested, showing that addition of these fibers contribute to decrease linear drying shrinkage and thermal conductivity, as well as promoting the adhesion strength of plaster to the substrate. The improvement of mechanical resistance reveal to be dependent on the type of fiber added while the hygroscopic capacity of the plaster is maintained regardless of the fiber additions.