Improving the durability of straw-reinforced clay plaster cladding for earthen buildings

Maheri, Mahmoud, Maheri, Alireza, Pourfallah, Saeed, Azarm, Ramin and Hadjipour, Akbar (2011) Improving the durability of straw-reinforced clay plaster cladding for earthen buildings. International Journal of Architectural Heritage, 5 (3). pp. 349-366. ISSN 1558-3058

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Official URL: http://dx.doi.org/10.1080/15583051003663859

Abstract

Many historic earthen structures in the Middle East, Central Asia, and parts of Africa and Latin America are traditionally protected against the rain by straw-reinforced clay-plaster applied as a protective layer to the exterior of the building. The plaster is effective in keeping the building dry and can sustain the severe temperature changes of the regions; however, the plaster is susceptible to relatively fast water erosion. This article presents the results of a program of experiments, aimed at enhancing the durability of this traditional plaster against rain erosion. Hydrated lime and a very fine-grained aggregate (crusher dust) are used to improve the resistance of the straw-reinforced plaster. Samples made of the improved plaster mixes are tested for compressive and flexural strengths, water tightness, and resistance to water erosion; the results are used to obtain an optimum mix proportion for the improved clay soil plaster. The results indicate a substantial increase in the strength and durability of the plaster by using small quantities of these low-cost additives.

Item Type: Article
Subjects: H200 Civil Engineering
K200 Building
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: EPrint Services
Date Deposited: 13 Oct 2011 09:52
Last Modified: 10 Aug 2015 11:18
URI: http://nrl.northumbria.ac.uk/id/eprint/1979

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