বালির FM বের করার নিয়ম | Fineness modulus test of sand Right & Back calculation.

Описание: Fineness Modulus Test of sand/ FM Test of Sand Bangla/ বালুর FM নির্ণয়/Civil Development
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‎Fineness Modulus (FM Test)
‎Fineness modulus of Sand is an index number which gives an idea
‎about the fineness of aggregate and is an approximate
‎proportion of the average size of particle in the Fine aggregate.
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‎It is calculated by performing sieve analysis with standard sieves.
‎The cumulative percentage retained on each sieve is added
‎and divided by 100 gives the value of fineness modulus.

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