Development of Microcapsule-based Self-healing, High-strength Engineered
Cementitious Composites (SHHS-ECC)
| 项目名称： | Development of Microcapsule-based Self-healing, High-strength Engineered Cementitious Composites (SHHS-ECC) |
| 摘要： | The durability of High-strength engineered cementitious composites (HS-ECC) is severely challenged once cracks are formed in a HS-ECC structural member, especially for those exposed to harsh environments (e.g., laden with chloride or sulfates). In this context, the goal of this project is to design a self-healing HS-ECC by virtue of microcapsules encapsulating healing agent. The multi-scale self-healing ability of the HS-ECC will be achieved through the combined use of microcapsules and continuous hydration of cementitious materials, so as to maintain the superior durability of HS-ECC. To this end, this exploratory laboratory investigation aims to: (1) identify the mix designs of HS-ECC incorporating microcapsules, based on the micromechanics theory (2) evaluate the self-healing effectiveness of HS-ECC, in terms of restoration level of tensile and transport properties (3) study the effect of crack width and pre-cracking age on the self-healing efficiency of HS-ECC. |
| 状态： | Active |
| 资金： | 180856 |
| 资助组织： | Transportation Infrastructure Durability & Life Extension |
| 项目负责人： | Kline, Robin |
| 执行机构： | Washington State University, Pullman |
| 开始时间： | 20210501 |
| 预计完成日期： | 20220930 |
| 实际结束时间： | 20220930 |
| 主题领域： | Highways；Materials；Pavements |
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