• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Magazine of Concrete Research >Ultra-lightweight foamed concrete for an automated facade application
【24h】

Ultra-lightweight foamed concrete for an automated facade application

机译：超轻泡沫混凝土，用于自动化外墙应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present study deals with the development and characterisation of ultra-lightweight foamed concrete (ULFC) that can be automatically sprayed onto bare walls to allow for sustainable facade refurbishments with a smaller workload and extended design possibilities. Since heat insulation and wall adhesion increase with reduced density, the objective of the development was to strive for ultra-low densities below 150 kg/m(3) that can be produced consistently and applied onto vertical walls by robots. For this purpose, rapid-setting binders based on Portland cement, calcium aluminate cement and calcium sulfate as well as protein-and surfactant-based foaming agents, were investigated to stabilise the foam structure initially. The results of this study demonstrate a foamed concrete mixture and a generator that allow for plastic densities below 150 kg/m(3). The developed ULFC was examined in terms of thermal conductivity, microstructure, vertical applicability, compressive strength and durability. The results indicate excellent heat-insulation potential with the disadvantage that the material loses strength over time due to carbonation and the precipitation of ettringite.
机译：本研究涉及超轻型泡沫混凝土（ULFC）的开发和表征，该超轻型泡沫混凝土可自动喷涂到裸墙上，从而以较少的工作量和扩展的设计可能性进行可持续的外墙翻新。由于隔热性和墙面附着力随着密度的降低而增加，因此开发的目标是力争达到150 kg / m（3）以下的超低密度，这种密度可以始终如一地生产并通过机器人应用于垂直墙。为此，研究了基于波特兰水泥，铝酸钙水泥和硫酸钙以及蛋白质和表面活性剂基发泡剂的快速固化粘合剂，以稳定泡沫结构。这项研究的结果表明，泡沫混凝土混合物和发生器的塑料密度低于150 kg / m（3）。研究了开发的ULFC的导热系数，微观结构，垂直适用性，抗压强度和耐久性。结果表明极好的绝热潜力，缺点是由于碳化和钙矾石的沉淀，材料会随时间失去强度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号