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Learn about air-entraining agents in concrete through a detailed 11-minute lecture that explores the critical relationship between air bubble spacing and concrete durability. Master microscopic air void analysis techniques, including point count analysis and ASTM test methods, while understanding the key differences between air-entrained and foamed concrete applications. Gain valuable insights into concrete durability, freeze-thaw resistance, and air void system characteristics through microscopy and standardized testing procedures. Part of NPTEL's certification-eligible course series recognized by UGC and AICTE for course credits in Indian Universities.
