Why silt content not allowed more than 6% for Sand ?

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Why silt content not allowed more than 6% for Sand ?..

Answer / naveen dixit

maximum silt content 3% as per is 383;1970 . 3 % up not using civil construction .

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Why silt content not allowed more than 6% for Sand ?..

Answer / reaman man

as per IS 383:1970 the percentage of silt should be kept as low as possible,ideally less than 3%. Higher percentages of silt can cause appreciable reduction in the Compressive Strength of concrete.

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