During the first part of this new session by CTLGroup, attendees will receive a thorough understanding of mass concrete in bridges, buildings and other modern infrastructures by Jon Feld, an expert in thermal control plans for mass concrete. The basics of mass concrete thermal technologies will be covered including the purpose of temperature, temperature difference limits, codes and standards, specification requirements, and resources. Appropriate concrete mixture designs will be addressed as well as insulation and cooling pipes. Tips, tricks, and other insights will be covered using examples from various construction projects.
Anthony Bentivegna, an expert in forensic and mitigation of ASR will address alkali-silica reaction challenges and best practices during the second part of this session. ASR is a physico-chemical reaction, which occurs between siliceous components of aggregates and alkalis from cement paste or external sources. This internal reaction leads to expansion and cracking, which can lead to premature deterioration of concrete structures, creating avenues for other durability problems to occur such as corrosion of reinforcing steel and damage from freezing and thawing. This presentation will provide an understanding of the expansion mechanism, example forms of deterioration, and how to prevent ASR in new construction. Codes and standards specification requirements and resources will also be discussed.
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