Unlocking self-healing bio-concrete through multiscale modelling

通过多尺度建模解锁自愈生物混凝土

• 批准号: DP240100851
• 负责人: Prof Luming Shen
• 金额: $ 36.22万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2024
• 资助国家: 澳大利亚
• 起止时间: 2024-01-01 至 2026-12-31
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP240100851
• 关键词: Unlocking; self; healing; bio; concrete

Self-healing bio-concrete, which uses bacteria as means to repair cracks, has the potential to revolutionise the construction industry and reduce the infrastructure repair and maintenance cost by billions of dollars annually. To unlock this, we need to understand the bacterial self-healing mechanisms for effective control of the performance. This project will develop a multiscale framework to describe the competing mechanisms between crack widening and healing at the macro-scale, incorporated with key information of substances diffusion and bio-cementation at the meso- and micro-scales. This will enable to optimise the self-healing of bio-concrete via design–test–learn approach and enhance the durability of structures under sustained loads.

自我修复的生物混凝土将细菌用作修复裂缝的平均值，有可能彻底改变建筑业，并每年将基础设施维修和维护成本降低数十亿美元。为了解锁这一点，我们需要了解细菌自我修复机制，以有效控制表现。该项目将开发一个多尺度框架，以描述宏观尺度上裂纹扩大与愈合之间的竞争机制，并结合了物质扩散和在中间和微观尺度上的关键信息。这将使通过设计 - 检验方法优化生物混凝土的自我修复，并提高持续负载下结构的耐用性。