I-Corps: High-Performance Concrete and Superhydrophobic Admixtures

I-Corps：高性能混凝土和超疏水外加剂

• 批准号: 1659229
• 负责人: Konstantin Sobolev
• 金额: $ 5万
• 依托单位: University of Wisconsin-Milwaukee
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-11-01 至 2018-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1659229&HistoricalAwards=false
• 关键词: Corps; Performance; Concrete; Superhydrophobic; Admixtures

The broader impact/commercial potential of this project is related to a wider use of superhydrophobic admixtures and concrete with enhanced durability. This approach is expected to lead to a highly effective method for improving the durability of concrete, especially concrete with large volumes of industrial by-products such as fly ash and slag used as cement replacements. New superhydrophobic admixtures enable extending the service life of concrete structures, save raw materials and energy, and reduce the environmental impacts associated with construction; these features are essential for future durable and resilient civil and transportation infrastructure. In order to boost concrete durability, thisp roject aims to incorporate the proposed admixture into concrete as a component of the mixture (the approach used for new concrete) or as a surface treatment (the option for concrete repair). This project will explore the feasibility of a family of superhydrophobic products tailored for these two large-volume markets. Ultimately, the proposed approach will improve the performance of concrete structures while substantially decreasing the maintenance costs compared to standard practices.This I-Corps project aims to test the business model hypotheses and verify the commercial potential of admixtures for high-performance concrete. The superhydrophobic admixture combines the emulsified hydrogen containing siloxane precursor and small quantities of submicron-sized particles. When added to fresh concrete, the developed admixture releases hydrogen and forms very small air voids evenly distributed within the cement paste. The resulting concrete is water resistant, improving concrete resilience and durability. The developed superhydrophobic coatings applied on existing concrete render it water repellant and also ice-phobic, reducing ice adhesion.

该项目的更广泛的影响/商业潜力与更广泛的超疏水混合物和具有增强耐用性的混凝土的使用有关。预计这种方法将导致一种高效的方法来提高混凝土的耐用性，尤其是用大量工业副产品（例如用作水泥替代品）的工业副产品的混凝土。 新的超疏水混合物可以延长混凝土结构的使用寿命，节省原材料和能源，并减少与建筑相关的环境影响；这些功能对于将来耐用和弹性的民用和运输基础设施至关重要。为了提高混凝土耐用性，此Project旨在将提出的混合物纳入混凝土中，作为混合物的组成部分（用于新混凝土的方法）或表面处理（混凝土修复的选项）。该项目将探讨为这两个大容量市场量身定制的超疏水产品家族的可行性。最终，所提出的方法将改善混凝土结构的性能，同时与标准实践相比大大降低了维护成本。该I-Corps项目旨在测试业务模型假设并验证辅助因素对高性能混凝土的商业潜力。超疏水混合物结合了含有硅氧烷前体和少量亚微米尺寸颗粒的乳化氢。当添加到新鲜混凝土中时，开发的混合物会释放氢，并形成非常小的空气空隙，均匀分布在水泥糊中。最终的混凝土是防水，可提高混凝土弹性和耐用性。已发达的超疏水涂层应用于现有的混凝土涂料上，也使IT驱虫剂和冰层涂层，从而减少了冰的粘附。