Question
Download Solution PDFAs per IS 10262 ∶ 2019, what is the approximate amount of entrapped air to be expected in normal (non-air-entrained) concrete, when 10 mm Nominal Maximum Size of Aggregate is used in making concrete?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFEntrapped Air in Normal Concrete (IS 10262: 2019):
- As per IS 10262: 2019, the amount of entrapped air in normal (non-air-entrained) concrete varies based on the nominal maximum size of aggregate used.
- For a 10 mm Nominal Maximum Size of Aggregate, the approximate amount of entrapped air expected in the concrete is about 1.5%.
- Entrapped air is the air that is unintentionally trapped in the concrete mix during mixing, placing, and compaction. It differs from intentionally entrained air, which is added to improve the workability and durability of concrete.
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