ABSTRACT

With the ingrowing awareness of environmental and energetic issues, earthen materials offer significant ecological and economic advantages. In Algeria, the Ksour (earthen buildings) remains the only witness to this type of construction. This research aims to contribute to extending the knowledge of these types of constructions to provide a proper intervention for their restoration and also help to produce adobes with good resistance and durability to reduce the renewal of plasters, which is pricey and time-consuming in the aim of declining the cost of housing, especially in rural areas. To achieve this, different mixtures of adobes were studied in order to test the effects of quicklime, cement and date palm fibers on their physical, mechanical and water resistance properties. The main results obtained showed that the addition of quicklime and cement in different combinations in adobes improves the mechanical properties. The inclusion of the DPF up to 0.5% in untreated adobes and 5% cement-stabilized adobes enhance the mechanical strengths, whereas in adobes stabilized with quicklime it leads to a decrease in their strength. The addition of cement and quicklime increases significantly the water resistance of the adobes, while the inclusion of fibers has an adverse effect.

摘要

随着人们对环境和能源问题的意识日益增强，土质材料具有显着的生态和经济优势。在阿尔及利亚，Ksour（土制建筑）仍然是此类建筑的唯一见证。这项研究旨在帮助扩展对这些类型建筑的了解，为它们的修复提供适当的干预，并帮助生产具有良好抵抗力和耐久性的土坯，以减少石膏的更新，而石膏的更新既昂贵又耗时降低住房成本，特别是在农村地区。为实现这一目标，研究了不同的土坯混合物，以测试生石灰、水泥和海枣纤维对其物理、机械和防水性能的影响。获得的主要结果表明，在土坯中添加不同组合的生石灰和水泥提高了力学性能。在未处理的土坯和 5% 的水泥稳定土坯中包含高达 0.5% 的 DPF 会提高机械强度，而在用生石灰稳定的土坯中会导致其强度降低。水泥和生石灰的加入显着提高了土坯的耐水性，而纤维的加入则产生了不利影响。