The influence of ion-binder interactions on the durability of cement-based material

离子-粘结剂相互作用对水​​泥基材料耐久性的影响

• 批准号: 355427-2008
• 负责人: Panesar, Daman
• 金额: $ 1.48万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=459376
• 关键词: influence; ion; binder; interactions; durability

Sustainable concrete structures, and elements which are durable, economical, and use industrial by-products are being designed with service lives longer than ever before. As this trend continues, understanding the performance of cementitious materials and their degradation mechanisms is increasingly becoming an important part of the design process and is the focus of this research proposal that accounts for the influence of environmental conditions, structural requirements, and material durability performance. Transport properties of concrete exposed to ions reflect the physical pore structure and the interaction between the ions and the binder. The interaction between chlorides and the binder affect the transport of ions and moisture and also affect the physical pore structure. Specific descriptions of transport properties which reflect changes to the microstructure upon exposure to ions is warranted to more completely understand the mechanism(s) of degradation and also to predict degradation of concrete over time.

可持续的混凝土结构以及耐用，经济和使用工业副产品的元素的设计比以往任何时候都更长。 随着这一趋势的继续，了解胶合材料的性能及其降解机制越来越成为设计过程的重要组成部分，并且是该研究建议的重点，该研究提出了环境条件，结构要求和物质耐用性能的影响。 暴露于离子的混凝土的转运特性反映了物理孔结构以及离子与粘合剂之间的相互作用。氯化物与粘合剂之间的相互作用会影响离子和水分的运输，也影响物理孔结构。 有必要对反映离子接触时微观结构变化的转运特性的特定描述，以便更完全了解降解的机制，并预测混凝土随时间的降解。