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Architecture and Planning Miscellaneous-topic

Architecture and Planning Miscellaneous

  1. ‘Cold joint’ refers to the
    1. expansion joint in large span concrete members
    2. interface between an already setting concrete and a fresh batch of concrete
    3. structural crack arrested by embedding metal rods
    4. joining of two similar metals in vacuum
Correct Option: B

A cold joint is a plane of weakness in concrete caused by an interruption or delay in the concreting operations. It occurs when the first batch of concrete has begun to set before the next batch is added, so that the two batches do not intermix.



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