Innovative nano-based coatings for protection of concrete

用于保护混凝土的创新纳米涂料

• 批准号: 570374-2021
• 负责人: Bassuoni, MohamedTamerMT
• 金额: $ 4.05万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=749178
• 关键词: Innovative; nano; based; coatings; protection

Construction and periodic maintenance of vital concrete infrastructure with high-performance materials are required to minimize the risk of premature failures and associated high maintenance costs and socioeconomic losses. Spray-Lock Concrete Protection (SL, U.S. producer of nano-silica products for concrete applications) and the City of Winnipeg (COW, Canadian municipality/end user) are collaborating with the applicant in a research project to improve the overall performance of concrete bridges and pavements using advanced surface coatings. The specific objective of the project is to explore the performance of nano-silica colloids (produced by SL) and synthesized nano-modified polymer composites as protective coatings for concrete under severe exposures encountered by concrete bridges and pavements in Canada. This information is essential if these novel coatings are to qualify for use as preventive or rehabilitation systems for concrete in future field studies (long-term objective). Success of nano-modified surface coatings as a viable option for protecting newly poured, existing or repair concrete may create additional business opportunities for SL, such as establishing new production facilities in Canada, which currently does not have local manufacturing for nano-based coatings for concrete. The proposed project will contribute to increasing confidence in using novel nano-based coatings as end products in the construction sector. It will be followed by field demonstration trials on successful combinations of nano-based coatings as surface treatments for rehabilitation of different elements of concrete bridges in Winnipeg, and incorporation of such end products in the COW concrete specifications. Producers, consulting firms and contractors participating in the future field trials will be able to apply novel types of nano-based coatings through technology transfer from the research team. With wider dissemination of knowledge through national/international workshops, this initiative will positively influence the sustainable development of Canadian infrastructure and beyond, by encouraging greater implementation of novel, high-performance, and cost-efficient protection strategies for transportation infrastructure.

需要使用高性能材料建造和定期维护重要的混凝土基础设施，以尽量减少过早失效的风险，减少相关的高维护成本和社会经济损失。Spray-Lock Concrete Protection （SL，美国用于混凝土应用的纳米二氧化硅产品生产商）和温尼伯市（COW，加拿大市政当局/最终用户）正在与申请人合作开展一项研究项目，利用先进的表面涂层改善混凝土桥梁和路面的整体性能。该项目的具体目标是探索纳米二氧化硅胶体（SL生产）和合成纳米改性聚合物复合材料作为加拿大混凝土桥梁和路面严重暴露下混凝土保护涂层的性能。如果这些新型涂层在未来的实地研究中有资格用作混凝土的预防或修复系统（长期目标），这些信息是必不可少的。纳米改性表面涂层作为保护新浇筑、现有或修复混凝土的可行选择，如果取得成功，可能会为SL创造额外的商机，例如在加拿大建立新的生产设施，目前加拿大没有纳米基混凝土涂层的本地制造。拟议的项目将有助于提高人们对将新型纳米基涂料作为建筑部门最终产品的信心。随后将进行现场示范试验，成功结合纳米涂层作为温尼伯混凝土桥梁不同元素修复的表面处理，并将这些最终产品纳入COW混凝土规范。参与未来现场试验的生产商、咨询公司和承包商将能够通过研究团队的技术转让来应用新型纳米涂层。通过国家/国际讲习班更广泛地传播知识，这一倡议将鼓励更多地实施新颖、高效和具有成本效益的交通基础设施保护战略，从而对加拿大基础设施的可持续发展产生积极影响。