Optimization of lime and clay-based hemp-concrete wall formulations for a successful lime rendering

Arizzi, Anna; Brummer, Monika; Martín Sánchez, Inés; Molina Piernas, Eduardo; Cultrone , Giuseppe V.

doi:10.1016/j.conbuildmat.2018.06.225

ARTÍCULO PRINCIPAL (3.802Mo)

Identificadores

URI: https://hdl.handle.net/10481/88875

DOI: 10.1016/j.conbuildmat.2018.06.225

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ELSEVIER

Date

2018

Referencia bibliográfica

Arizzi A., Brümmer M., Martín Sánchez I., Molina E., Cultrone G. Optimization of lime and clay-based hemp-concrete wall formulations for a successful lime rendering. Construction and Building Materials, 184, 76-86 (2018). D.O.I.: 10.1016/j.conbuildmat.2018.06.225

Patrocinador

Spanish Ministry of Economy, Industry and Competitiveness under the program ‘‘Juan de la Cierva-Incorporación” (2015 call); Spanish Ministry of Economy, Industry and Competitiveness under research project MAT2016-75889-R

Résumé

Different pathologies may arise on a wall finish if this is applied on a hemp-based rammed wall that is not completely dry. By simulating uneven drying and early-rendering of load-bearing and non-load-bearing hemp concrete blocks (made with natural hydraulic lime only or a mix of lime with clay) and studying them by means of chromatic, microbiological, textural and morphological investigations, we found that: it is advisable to wait at least ten weeks before rendering; adding clay to hemp concrete delays drying, leading to more intense deterioration of the render; natural hydraulic lime is the preferred binder for rendering hemp concrete.

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DMP - Artículos

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