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    Fineness Modulus of Sand - Fineness Modulus of Fine Aggregate - Fineness Modulus of Sand Calculation

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    Waqas Sadiq
    The document discusses the fineness modulus of sand, which is a test used to determine the mean size of sand particles by performing a sieve analysis. The test involves shaking a sand sample in a series of sieves and calculating the fineness modulus based on the weights retained in each sieve. A fineness modulus between 2.2 to 3.2 indicates fine to coarse sand, and the value is used to determine the appropriate sand for construction applications.

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    Fineness Modulus of Sand - Fineness Modulus of Fine Aggregate - Fineness Modulus of Sand Calculation

    Uploaded by

    Waqas Sadiq
    1K views7 pages
    The document discusses the fineness modulus of sand, which is a test used to determine the mean size of sand particles by performing a sieve analysis. The test involves shaking a sand sample in a series of sieves and calculating the fineness modulus based on the weights retained in each sieve. A fineness modulus between 2.2 to 3.2 indicates fine to coarse sand, and the value is used to determine the appropriate sand for construction applications.

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    The document discusses the fineness modulus of sand, which is a test used to determine the mean size of sand particles by performing a sieve analysis. The test involves shaking a sand sample in a series of sieves and calculating the fineness modulus based on the weights retained in each sieve. A fineness modulus between 2.2 to 3.2 indicates fine to coarse sand, and the value is used to determine the appropriate sand for construction applications.

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    © All Rights Reserved
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    1K views7 pages

    Fineness Modulus of Sand - Fineness Modulus of Fine Aggregate - Fineness Modulus of Sand Calculation

    Uploaded by

    Waqas Sadiq
    The document discusses the fineness modulus of sand, which is a test used to determine the mean size of sand particles by performing a sieve analysis. The test involves shaking a sand sample in a series of sieves and calculating the fineness modulus based on the weights retained in each sieve. A fineness modulus between 2.2 to 3.2 indicates fine to coarse sand, and the value is used to determine the appropriate sand for construction applications.

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    © All Rights Reserved
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     Home

     Fineness Modulus of Sand | Fineness Modulus of Fine Aggregate |


    Fineness Modulus of Sand Calculation

    Fineness Modulus of Sand | Fineness


    Modulus of Fine Aggregate | Fineness
    Modulus of Sand Calculation
    By Bhushan Mahajan
    Post Contents

     What Is Fineness Modulus of Sand?


     Fineness Modulus of Sand Test
     Apparatus:
     Sample Preparation
     Sieve Analysis of Fine Aggregate
     Calculation of F.M. of Sand
     Range of Fineness of Modulus
     Free Download Sieve Analysis Excel Sheet:
     Watch Video: Fineness Modulus of Sand
     FAQs
    o How do you calculate fineness modulus of sand?
    o What is the range of fineness modulus?
    o What is fineness modulus used for?
    o Which zone sand is the finest sand?
    o What is the FM of sand?

    What Is Fineness Modulus of Sand?


    The Fineness Modulus of Sand is an index number that indicates the
    mean size of the sand particles. It is calculated by performing
    the sieve analysis test with standard IS sieves. The fineness
    modulus of sand ranges from 2.2 to 3.2.

    To find the fineness modulus of fine aggregate required IS


    sieve are sizes of 4.75mm. 2.36mm, 1.18mm.0.6mm, 0.3mm,
    and 0.15mm.

    Read More: Sand Moisture Content Test – Procedure and Result

    Fineness Modulus of Sand Test


    IS Code for Fineness Modulus of fine aggregate : IS : 383 -1970

    Apparatus:
     Sieves as per IS standards
     Mechanical sieve shaker(optional)
     Dry oven
     Digital weight scale
    Sample Preparation
    Sample preparation for fineness modulus of sand is given as under

    Take a sample of sand in a pan and placed it in the oven at a


    temperature of approximate 100-110°C.

    After drying, take the sample out from oven and note down its
    weight using digital weighing scale.

    Sieve Analysis of Fine Aggregate


    Following is the test procedure for fineness modulus of sand test,

    1) Take the sieves and arrange them in descending order with the
    largest sieve on top.

    2) If a mechanical shaker is using for shaking, then put the sieve set
    in position on the mechanical shaker and pour the sample in the top
    sieve & then close it with the sieve plate.

    3) Then switch on the machine and shaking of sieves should be done


    at least for 5 minutes.
    Sieve Analysis for Fineness Modulus of Sand
                                                                

    4) If the shaking is done manually (by the hands) then pour the
    sample in a top sieve and close it then hold the top two sieves and
    shake it inwards and outwards, vertically and horizontally.
    5) After some time shake 3 and 4 and finally last sieves
    simultaneously.

    6) After sieving, record the sample weights retained on each


    sieve. Then find the cumulative weight retained.

    7) Finally, determine the cumulative percentage retained on each


    sieve.

    8) Add the all cumulative percentage values and divide with


    100 then we will get the value of fineness modulus.

    Calculation of F.M. of Sand


    Let us assume the dry weight of sample = 1000gm

    After sieve analysis, the values that appeared are tabulated below.

    Cumulative percentage
      Sieve size Weight retained(g) Cumulative weight retained (g)
    weight retained(%)

    4.75mm 0 0 0

    2.36mm 100 100 10

    1.18mm 250 350 35

    0.6mm 350 700 70

    0.3mm 200 900 90

    0.15mm 100 1000 100

    Total     275
    Fineness o
    Hence, Fineness modulus of Sand = (Cumulative % retained) /
    100
    = (275 / 100)

    = 2.75

    Range of Fineness of Modulus


    Following table indicate sand fineness modulus value ranges from 2.6
    to 3.2.

    Types of Sand Fineness Modulus (F. M) Value

    Fine Sand 2.6 – 2.6

    Medium Sand 2.6 -2.9

    Coarse Sand 2.9 -3.2


    Sand F. M. Ranges

    Fineness modulus with respect to various zones of sand


    according to IS 383-1970 are given in table below.

    Sieve size Zone1 Zone2 Zone3 Zone4

    10mm 100 100 100 100

    4.75mm 90-100 90-100 90-100 95-100

    2.36mm 60-95 75-100 85-100 95-100

    1.18mm 30-70 55-90   75-100   90-100

    0.6mm 15-34 35-59 60-79 80-100

    0.3mm 5-20   8-30   12-40   15-50

    0.15mm 0-10 0-10 0-10 0-15

    Fineness Modulus 4.0-2.71 3.37-2.1 2.78-1.71 2.25-1.35


    Free Download Sieve Analysis Excel Sheet:

    Watch Video: Fineness Modulus of Sand

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