Ancient Materials and Techniques to Improve the Earthen Building Durability

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A substantial part of the world building heritage has been performed by earthen building. The durability of this existing heritage and mainly of the new buildings built with earth is particularly conditioned by the erosion caused by water action, especially in countries with high levels of rainfall. This research aims to contribute to the increase of knowledge about the ancient building techniques that provide enhanced durability. It is possible to analyse the ancestral practices used to protect the earth material from the water action in order to understand how the old earthen buildings were preserved over the centuries, resisting to harsh weather conditions. Among these techniques are: the incorporation of biopolymers (such as oils or fats from animal or vegetable origin); the addition of some minerals; and the earth stabilization with lime. However, this knowledge seems to be forgotten, probably due to the prejudice related to earthen constructions, which several times are associated with a poor building. This research also focuses on the study of new methods of earth stabilization with lime and biopolymers, adapting the ancient knowledge to improve the durability related to the water action. Therefore, alternative solutions can be obtained to improve the performance of earthen buildings, mainly the resistance of the material in the presence of water, reducing its permeability to water. In addition, with the proposed solutions it is possible to obtain good levels of water vapour permeability, one of the major advantages of the construction with earth.

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Periodical:

Edited by:

José Aguiar, Aires Camões, Raul Fangueiro, Rute Eires, Sandra Cunha and Mohammad Kheradmand

Pages:

357-366

Citation:

R. Eires et al., "Ancient Materials and Techniques to Improve the Earthen Building Durability", Key Engineering Materials, Vol. 634, pp. 357-366, 2015

Online since:

December 2014

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$41.00

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[1] Eires, R. Construção em Terra: Desempenho melhorado com incorporação de biopolímeros. (Building with earth: improved performance with biopolymers incorporation) PhD thesis, University of Minho, Portugal (2012).

[2] Houben, H. & Guillaud, H. Earth Construction – A comprehensive guide, originally published with the title Traite de construcion en terre de CRATerre,. Ed. Parenthèse, 1989, Edition CRATerre-EAG, Practical Action Publiching, The Schumacher Centre for Technology & Development (2008).

[3] Crews, C. Earth Plasters and Aliz, in The Art of Natural Building, NetWorks' Productions, Available at: www. networkearth. org, accessed (2010).

[4] Correia, M. & Merten, J. A taipa alentejana: sistemas tradicionais de proteção. In: PROTERRA/CYTED, Centro de investigación de Arquitectura Tradicional (CIAT), II SIACOT, Iberian American Seminar of Earthen Architecture and Construction. Madrid, Spain (2003).

[5] Santos, C. Utilização de resíduos oleosos provenientes das atividades de petróleo para uso em pavimentos rodoviários. Dissertation in Civil Engineering and Environment, Federal University of Campina Grande, May (2010).

[6] Hutton, S. Answers to questions about Oman - Making sarooj. Available at: www. newsbriefsoman. info, accessed (2010).

[7] Malekzadeh M.J. Dams of the Ancient City of Istakhr. In: IRNCID and ICID, International History Seminar on Irrigation and Drainage, pg. 121, Tehran, Iran, May (2007).

[8] Eires, R., Camões, A. & Jalali S. Otimização do desempenho de construção em terra com recurso a bio-polímeros. Seminário de Arquitetura de Terra em Portugal, 6ºATP/ Iberian American Seminar of Earthen Architecture and Construction - 9ºSiacot, Coimbra, February. Ed. Argumentum (2010).

[9] Margalha, M. G., Veiga, M. R., & Brito, J. Algumas vantagens do uso da cal em pasta em revestimentos. 2º Encontro sobre Patologia e Reabilitação de Edifícios, Patorreb, Porto (2006).

[10] Vitruvius P. De architectura – Book VIII, em Vitruvius: On Architecture, original text written by the author in the 1st century BC. Available at: http: /penelope. uchicago. edu/Thayer/E/Roman /Texts/Vitruvius, accessed (2011).

DOI: https://doi.org/10.1017/cbo9781107280670.009

[11] Veiga, E. Arquitetura luso brasileira e suas relações com a toponímia. Colóquio 260 anos de herança açoriana. In: NEA, Federal University of Santa Catarina, Florianopolis – Santa Catarina, Brazil, 15 -17 September (2008).

[12] Teixeira, G. & Belém, M. Diálogos de edificação: técnicas tradicionais de restauro. Publication, Porto: Centro Regional de Artes Tradicionais, CRAT (1998).

[13] CML, Câmara Municipal de Lisboa, Baixa Pombalina: bases para uma intervenção de salvaguarda. Edition Câmara Municipal de Lisboa – Pelouros do Licenciamento Urbanístico, Reabilitação Urbana, Planeamento Urbano, Planeamento Estratégico e Espaços Verdes (2005).

[14] BASIN & Pratical Action. Mud plasters and renders. BASIN - Building Advisory Service and Information Network. Original text - Appropriate Technology Magazine, Volume 26/Number 1th June of 1999, AT Brief N. 28, Edited by Practical Action Publishing, The Schumacher Centre for Technology & Development 2002).

[15] Beas, M. Traditional architectural renders on earthen surfaces. Master thesis, University of Pensilvânia (1991).

[16] Fathy, H. Arquitetura para os pobres – Uma experiência no Egito rural. Original texto of Cairo 1969 with the title Gourna, a Tale of two Villages, Edited in Portugal by Argumentum and Dinalivro (2009).

[17] CPNT - Consejo de Promocion de Nopal y Tuna. Usos y Aplicaciones del Nopal, Available at: http: /www. cpnt. org. mx, accessed (2009).

[18] Maniatidis, V. & Walker, P. A Review of Rammed Earth Construction, DTi Partners in Innovation Project Developing Rammed Earth for UK Housing, May (2003).

[19] Fontaine, L.; Anger, R.; Houben, H. Quelques mecanismes de stabilisation du materiau terre de l aterre stabilisee aux composites argiles – biopolymeres. Internacional Conference Mediterra 2009, 1ª Conferenza Mediterranea sull´ Architettura in Terra Cruda, Ed. Edicom, Itália (2009).

[20] Čechová, E. The effect of linseed oil on the properties of lime-based restoration mortars. PhD thesis, University of Bologna (2009).

[21] Anger, R., Fontaine, L. & Houben, H. Influence de la teneur en sel et du ph sur la plasticite du materiau terre. Internacional Conference MEDITERRA 2009, 1ª Conferenza Mediterranea sull´ Architettura in Terra Cruda, Ed. Edicom, Itália (2009).

[22] ASTM, D 1633 – 00. Standard Test Methods for Compressive Strength of Molded Soil-Cement Cylinders, ASTM, West Conshohocken, PA 19428-2959, United States (2000).

[23] Gomes, R. & Folque, J. O uso da terra com material de construção. Technical document - C.I. T Nº9, series D-4, LNEC (1953).

[24] IPQ, NP EN 1015-19: 2000, Métodos de ensaio de argamassas para alvenaria, Parte 19: Determinação da permeabilidade ao vapor de água de argamassas de reboco endurecidas. Instituto português da qualidade, IPQ (2000).

DOI: https://doi.org/10.11606/d.18.2014.tde-30072014-085410

[25] Pinto, P. Caraterização de Barreiras Pára-Vapor e sua Aplicação. Master thesis, University of Porto (2002).