Assessment, optimization, and modeling of concrete repairs for enhanced performance and durability

对混凝土修复进行评估、优化和建模，以提高性能和耐久性

• 批准号: RGPIN-2016-03863
• 负责人: Zanotti, Cristina
• 金额: $ 1.68万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=636496
• 关键词: Assessment; optimization; modeling; concrete; repairs

Visible declining infrastructure has become a reason for major concern in Canada. Not only is the safety of Canadians compromised by sudden non-predicted failures, but also the ability of our society to function effectively is jeopardized by the current challenges to moving goods and people within communities. Repairing aging infrastructure is considered a critical national need, with more than half of the municipal and provincial budgets now directed at repair and rehabilitation. Nonetheless, designing repairs that are structurally effective, robust, durable, and sustainable remains difficult as it was proven by past failures. Repair effectiveness and degradation are affected by strongly interrelated mechanical, physical and chemical phenomena, some of which are currently not properly considered in repair design, mainly because their nature and effects are not fully understood. Furthermore, there is increasing concern by the environmental sustainability of the Ordinary Portland Cement (OPC) concretes commonly employed. OPC manufacturing releases about a ton of CO

可见的基础设施下降已成为加拿大主要关切的一个原因。不仅是加拿大人的安全受到突然的不可预测的故障的损害，而且我们的社会有效运作的能力也受到目前在社区内运输货物和人员的挑战的危害。修复老化的基础设施被认为是一项关键的国家需求，目前一半以上的省市预算都用于修复和恢复。尽管如此，设计结构有效，坚固，耐用和可持续的维修仍然很困难，因为它被过去的失败所证明。修复效果和退化受到密切相关的机械、物理和化学现象的影响，其中一些现象目前在修复设计中没有得到适当考虑，主要是因为它们的性质和影响尚未得到充分了解。此外，人们越来越关注通常使用的普通波特兰水泥（OPC）混凝土的环境可持续性。OPC制造释放约一吨的CO