Sieve Analysis and Fineness Modulus

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Sieve Analysis and Fineness Modulus-Excel Computation

This spreadsheet will help you save time on repetitive computation of  Fineness Modulus that is useful on the producing a quality concrete mixes.

But first, what is Fineness Modulus?

The Fineness Modulus is an empirical figure obtained by adding the total percentage of the sample of an aggregate retained on each of a specified series of sieves, and dividing the sum by 100. It is important in specifying the proportions of fine and coarse aggregates when designing concrete mixes. The higher the value of FM, the coarser the aggregate. Generally, a lower FM results in more paste, making the concrete easier to finish.