Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt
Title | Enhancing water resistance of earthen buildings with quicklime and oil |
Publication Type | Papers in International Journals |
Year of Publication | 2017 |
Authors | Eires R., Camões A., and Jalali S. |
Abstract | Earth as a building material is a very sustainable construction option. The vulnerability of earthen buildings to water action by rain, floods or capillary absorption is the main concern, especially in countries with a high rainfall. The historical earthen buildings that have survived these actions until today demonstrate that it is possible to build durable earthen constructions. A successfully used technique in ancient buildings is the incorporation of natural products with water resistant properties, such as oils, fats and other materials generally referred to as biopolymers. Another common practice has been the use of lime (slaked or quicklime) for stabilizing soils. The main aim of this research is to improve the resistance of compressed soil against rainwater action. For this purpose, ancient and contemporary knowledge was analysed. Different mixtures of stabilized soil were studied in order to test the effects of quicklime, oils and a mineral additive. The main results obtained in this research showed that quicklime leads to increased performance in compressive strength and significantly reduced erosion in the accelerated erosion test of rain simulation. This study provides a contribution to the scientific knowledge required to achieve increased durability for new earth buildings, as well as for conservation of existing earthen construction heritage, preserving the sustainability of the construction. |
Journal | Journal of Cleaner Production |
Volume | 142 |
Edition | 4 |
Pagination | 3281-3292 |
Date Published | 2017-01-20 |
Publisher | Elsevier |
ISSN | 0959-6526 |
DOI | 10.1016/j.jclepro.2016.10.141 |
URL | http://www.sciencedirect.com/science/article/pii/S0959652616317723 |
Keywords | biopolymers, Durability, Earth building, Oils, Quicklime, Rainwater action |
Rights | restrictedAccess |
Peer reviewed | yes |
Status | published |
The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.
Currently CTAC aggregates 37 researchers holding a PhD of which 27 are faculty professors of the Civil Engineering Department. Read more
Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt