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While preparing a Design Mix for any Grade, if we have aggregated in two sizes like 10 mm & 20 mm or In fact Sometimes, we do use to have 40 mm aggregate as well. Is there Any IS Code Provision ...

  1. dbnalawade

    dbnalawade

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    Following points part of the answer to the question : IS 456  and IS 1343 are the code of practice you can use. The method of proportions aggregates for concrete is part design mix process. Size and Grading impacts the design mix greatly. larger the size of aggregate smaller is the cement requiremenRead more

    Following points part of the answer to the question :

    • IS 456  and IS 1343 are the code of practice you can use.
    • The method of proportions aggregates for concrete is part design mix process.
    • Size and Grading impacts the design mix greatly.
    • larger the size of aggregate smaller is the cement requirement for a given W/C ratio
    • Compressive strength of the mix tends to increase with decrease in aggregate size.
    • perform gradation tests using sieves. Coarse aggregates should conform to table 2 of IS 383 and Fine aggregate should conform to Zone 1 of IS 383

    There is ACI method available for the same exercise ACI 211.1is the code you can use.

     

    Hope this helps.

     

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