Enhanced durability performance of fly ash concrete for concrete-faced rockfill dam application

• Published in: Cement and concrete research Vol. 32; no. 1; pp. 23 - 30
• Main Authors: Yoon, Young-Soo, Won, Jong-Pil, Woo, Sang-Kyun, Song, Young-Chul
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Ltd 2002; Elsevier Science
• Subjects: Applied sciences; Building structure; Buildings. Public works; Concrete structure; Construction (buildings and works); Dams and subsidiary installations; Durability; Durability of constructions; Durability. Pathology. Repairing. Maintenance; Exact sciences and technology; Fatigue; Fly ash; Hydraulic constructions; Permeability; Shrinkage; Fly ash; Durability; Fatigue; Shrinkage; Permeability; Chemical resistance; Concrete mix design; Compressive strength; Experimental study; Freeze thaw cycle; Abrasion resistance; Fatigue strength; Concrete construction; Rockfill dams; Dynamic elastic modulus
• ISSN: 0008-8846; 1873-3948
• DOI: 10.1016/S0008-8846(01)00623-8

The main purpose of this research was to enhance the durability in both the design and construction of dams. Especially, in case of rockfill dams, the durability of face slab concrete in a concrete-faced rockfill dam (CFRD) is achieved by optimizing the fly ash replacement for cement. The effect on durability corresponding to the increasing replacement of fly ash was evaluated, and the optimum value of fly ash replacement was recommended. The results show that 15% of fly ash replacement was found to be an optimum level and demonstrated excellent performance in durability.