Speaker
Description
This study presents long-term durability findings for various rapid repair concrete systems subjected to over a decade of outdoor exposure in diverse environmental conditions. The systems evaluated include Calcium Aluminate Cement (CAC), blended CAC–Portland cement systems, and Calcium Sulfoaluminate (CSA) cement, benchmarked against conventional Portland cement concrete. Key durability mechanisms monitored were Alkali-Silica Reaction (ASR), External and Physical Sulfate Attack, Delayed Ettringite Formation (DEF), steel reinforcement Corrosion, and Carbonation. Results demonstrate that each alternative binder system exhibited distinct performance advantages under specific conditions. Overall, the findings highlight the potential of alternative cementitious systems to outperform traditional Portland cement in targeted repair applications, emphasizing the importance of selecting repair materials based on anticipated environmental exposures.
Affiliations
1The University of Texas at Austin, 10100 Burnet Road, Austin, Texas, 78758
Imerys, 1316 Priority Ln, Chesapeake, VA 23324
| Keywords | CAC, Concrete Durability, Alkali-Silica Reaction, Sulfate Attack |
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