A Cementitious Material Which Forms a Densified, Strong, Protective Surface by Interaction of Chemicals with Atmospheric Gases, Such as CO2

一种水泥材料，通过化学物质与大气气体（例如二氧化碳）的相互作用形成致密、坚固的保护性表面

• 批准号: 9807210
• 负责人: Carolyn Dry
• 金额: $ 4.9万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-15 至 2000-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9807210&HistoricalAwards=false
• 关键词: Cementitious; Material; Forms; Densified; Strong

9807210DryAn SGER award will support a study of the feasibility of generating dense, strong and hard surface layers on cement surfaces from carbonation reactions of calcium-silica hydrate in the cement with ambient carbon dioxide. The calcium-silicate hydroxide is to be obtained from an initial reation of lithium silicate with calcium hydroxide, producing also lithium hydroxide which is expected to minimize the detrimental alkali-silica reaction. Mechanical, microstructural and reaction rate properties will be determined for a number of compositions in order to optimize the surface properties for strength and impermeability to water.***

9807210 DryAn SGER奖将支持一项可行性研究，即通过水泥中的硅酸钙水合物与环境二氧化碳的碳酸化反应，在水泥表面生成致密、坚固和坚硬的表面层。 硅酸钙氢氧化物将从硅酸锂与氢氧化钙的初始反应中获得，还产生氢氧化锂，这有望使有害的碱-二氧化硅反应最小化。 将确定许多组合物的机械、微观结构和反应速率性质，以优化强度和水不渗透性的表面性质。