Development of Corrosion Inhibiting Geopolymers based Cement for Transportation Infrastructure
| 项目名称： | Development of Corrosion Inhibiting Geopolymers based Cement for Transportation Infrastructure |
| 摘要： | Geopolymers are gaining attention as affordable, sustainable, and eco-friendly replacement for Ordinary Portland Cement (OPC) in concrete civil structures. More importantly, Geopolymer-based Cement (GPC) provide sustainable and environmentally friendly alternative to OPCs as GPC can be processed at room temperatures from aqueous solutions of waste materials (e.g. fly ash) or abounded natural sources (e.g. clay) and thus reduce significant CO2 production. Although, research has been done on improving mechanical properties of GPC, there are only a few studies on the effects of GPC concrete on steel rebar reinforcement. This study will investigate the long-term durability of reinforced GPC concrete against chloride-induced corrosion. Durability tests under simulated marine environment will be conducted on reinforced GPC concrete over long periods of time. Both material characterization studies related to micro to macro behavioral changes during long-term exposure of reinforced GPC concrete and steel rebar will also be carried out. In addition, in order to improve the durability of the transportation infrastructure affected by corrosion in the most efficient manner, a procedure to manage corrosion in reinforced GPC bridges will be developed. The desirable features of this management system will include the methods for preliminary corrosion condition evaluation and in-depth corrosion condition evaluation, the methods for assessing the structure condition rating and monitoring, methodology for selecting best corrosion prevention and controls, reliability model, and procedure for tracking repair or design performance. |
| 状态： | Completed |
| 资金： | 120000 |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 项目负责人： | Melson, Christopher |
| 执行机构： | Texas A&M University, College Station |
| 开始时间： | 20190815 |
| 预计完成日期： | 20210430 |
| 主题领域： | Bridges and other structures；Construction；Highways；Maintenance and Preservation；Materials |
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