THERMO-MECHANICAL AND HYGRIC PERFORMANCE OF SPRAYED STUCCO

喷涂灰泥的热机械性能和耐湿性能

• 批准号: 478225-2015
• 负责人: Bindiganavile, Vivek
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=579378
• 关键词: THERMO; MECHANICAL; HYGRIC; PERFORMANCE; SPRAYED

Portland cement plaster also known as stucco is extensively used as a coating material on the exterior surface of buildings. As such, it is expected to possess satisfactory resistance to most commonly encountered deleterious environmental conditions such as wind, rain, thermal imbalance, moisture fluctuation, detrimental soil and aggressive chemical attack. This problem is compounded when instead of the conventional casting process, it is applied through the spray process. Special care must be taken to understand the material composition in-situ, rheological and mechanical behaviour, and hygro-thermal performance. It is well known that using lightweight aggregates will reduce rebound and achieve better thermal insulation. This study will examine lightweight stucco for mechanical, thermal and hygric properties. Tests that measure shrinkage in a controlled temperature-humidity chamber will evaluate strains associated with each layer in the application of stucco. At the same time, accruing benefits to its insulating ability will be examined through ASTM and ISO methods for thermal evaluation. The proposed study will thus detail improvements to the dimensional stability, rheology, thermal transport, and mechanical properties of insulating sprayed stucco.

波特兰水泥石膏也称为灰泥，广泛用作外表面上的涂料 建筑物。因此，预计最常见的抵抗力将具有令人满意的抵抗力 有害环境条件，例如风，雨，热失平，水分波动，有害 土壤和积极的化学攻击。当而不是传统的铸造时，这个问题变得更加复杂 过程，它是通过喷雾过程应用的。必须特别注意了解材料 原位，流变学和机械行为以及卫生表现。众所周知 使用轻质骨料将减少反弹并实现更好的热绝缘材料。这项研究会 检查轻巧的灰泥，以了解机械，热和湿润性能。测量测量收缩的测试 受控温度 - 湿度室将评估与每一层相关的菌株的应用 灰泥。同时，将通过ASTM和ISO检查其绝缘能力的收益 热评估的方法。因此，拟议的研究将详细介绍尺寸稳定性的改进， 绝缘喷涂灰泥的流变，热运输和机械性能。