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Process of coarse aggregate

Coarse aggregates are any particles greater than 019 inch but generally range between 38 and 15 inches in diameter Gravels constitute the majority of coarse aggregate used in concrete with crushed stone making up most of the remainder

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    o find fineness modulus of coarse aggregate we need sieve sizes of 75mm 375mm 19mm 95mm 475mm 236mm 118mm 06mm 03mm and 015mm Fineness modulus is the number at which the average size of particle is known when we counted from lower order sieve size to higher order sieve So in the calculation of

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