Evaluation of Alternative Sources of Supplementary Cementitious Materials (SCMs) for Engineered Cementitious Composites in Transportation Infrastructure
| 项目名称： | Evaluation of Alternative Sources of Supplementary Cementitious Materials (SCMs) for Engineered Cementitious Composites in Transportation Infrastructure |
| 摘要： | Due to their superior ductility and mechanical strength, Engineered Cementitious Composites (ECCs) have been proposed as a promising material alternative to extend the durability and infrastructure service life. Compared with normal concrete, ECC uses more cement due to the absence of coarse aggregate in the mixture design. High cement content usually introduces higher hydration heat, autogenous shrinkage, and increased cost. Moreover, the associated increase in primary energy and emission of carbon dioxide may cause negative environmental impacts. A plausible solution would be to replace a large portion of cement in ECC with SCMs (e.g., fly ash), without sacrificing its mechanical properties, in general, and tensile ductility, in particular. As such, fly ash has become a key ingredient in the production of ECC materials. In the U.S., fly ash is the most utilized SCM in the cement and concrete industry and has become an integral part of concrete mixtures. However, the decline in coal-fired power generation is affecting its wide availability. Consequently, there is an urgent need to find alternative sources of SCMs that are high-quality, cost-effective, and readily available, which can provide a portfolio of alternatives to conventional fly ash. As a response to the expected shortage of fly ash, the objective of this project is to evaluate the much-needed alternative sources of SCMs, including unconventional sources of fly ash, to provide high-quality and cost-effective SCM alternatives for the future of ECC production in Region 6. The unconventional fly ash sources to be investigated in this study are ground bottom ash, reclaimed fly ash, ground glass, and cement kiln dust (CKD). |
| 状态： | Active |
| 资金： | 58868 |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 管理组织： | Transportation Consortium of South-Central States (Tran-SET) |
| 项目负责人： | Mousa, Momen R |
| 执行机构： | Louisiana State University, Baton Rouge |
| 主要研究人员： | Noorvand S.M.ASCE, Hassan |
| 开始时间： | 20220401 |
| 主题领域： | Bridges and other structures；Environment；Highways；Materials；Pavements |
相关文献
- Evaluation of Alternative Sources of Supplementary Cementitious Materials (SCMs) for Concrete Materials in Transportation Infrastructure
- Admixture Compatibility of Alternative Supplementary Cementitious Materials for Pavement and Structural Concrete
- Development of Novel Ultra-High Performance Engineered Cementitious Composites (UHP-ECC) for Durable and Resilient Transportation Infrastructure
- Assessment of Test Methods for Supplementary Cementitious Materials
- Alkali-Silica Reaction Mitigation using Alternative Supplementary Cementitious Materials
- Durability of Concrete Produced with an Alternative Supplementary Cementitious Material
检索历史
应用推荐
