Fineness modulus of aggregate is an index number which gives an idea about the finance of aggregate and is an approximate proportion of the average size of particle in the aggregate It is found out by sieve analysis test of standard size in the laboratory...

Jul 20 2018 0183 32 Calculation Process Concrete workers calculate fineness modulus using sieves with progressively smaller hol Separate sets of sieves are used for coarse and fine aggregat The measuring process itself will be the same for both categories of aggregate First the sieves must be arranged in a stack in descending order...

Jan 01 1994 0183 32 The premise aggregate of the same fineness modulus will require the same quantity of water to produce a mix of the same consistnecy and give a concrete of the same strength Before calculating FM lab technicians perform a sieve analysis to determine the particle size distribution or grading of the aggregate sample...

What Is Fineness Modulus of Sand Fineness modulus of sand fine aggregate is an index number which represents the mean size of the particles in sand It is calculated by performing sieve analysis with standard siev The cumulative percentage retained on each sieve is added and subtracted by 100 gives the value of fineness modulus...

The researchers found that all residual foundry sands when used in concrete and concrete blocks in amounts not exceeding the fineness modulus limits of the fine aggregate addition give acceptable compressive strengths...

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 100-110 176 C After drying take the sample out from oven and note down its weight using digital weighing scale Test Procedure Following is the test procedure for fineness modulus of sand test...

Fineness Modulus is used to know the size of aggregate grains Particles for various measurements used in Civil Engineering To characterize the overall coarseness or fineness of an aggregate a...

The fineness modulus is computed from screen analysis data by adding the cumulative percentages of aggregate retained on each of a specified series of sieves and dividing the sum by 100 The sieves used for determining the fineness modulus are No 100 150 181 m No 50 300 181 m No 30 600 181 m No 16 118 mm No 8 236 mm No 4 4...

The sand is good if its fineness modulus is in the range of to The sand with fineness modulus less than this will be called fine sand which is not good for use The sand with fineness modulus greater than this will be called...

Excel Sheet For Sieve Analysis Of Aggregate And To Calculate Fineness Modulus 8 53 PM civil Excel Sheets Excel Sheet For Sieve Analysis Of Aggregate And To Calculate Fineness Modulus The sieve analysis commonly known as the gradation test is a basic essential test for all...

The same fineness modulus can represent a number of different size distributions and grading curv Therefore fineness modulus cannot be used as a description of the grading of aggregate When the use of the fineness modulus in the assessment of variations from the same source or parabolic behavior of a concrete mix is of great help...

The Fineness Modulus FM 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 100Sieves sizes are 150-μm No 100 300-μm No 50 600-μm No 30 118-mm No 16 236-mm No 8 475-mm No 4 95-mm 3/8-in 190-mm 3/4-in 375-mm 11/2-in and larger...

For aggregates used in PCC another common gradation description for fine aggregate is the fineness modulus It is described in ASTM C 125 and is a single number used to describe a gradation curve It is defined as The larger the fineness modulus the more coarse the aggregate...

Oct 01 2016 0183 32 Fineness Modulus Fineness modulus is an empirical factor obtained by adding the cumulative percentages of aggregate retained on each of the standard sieves ranging from 80 mm to 150 micron and dividing this sum by 100 Fineness modulus is generally used to get an idea of how coarse or fine the aggregate is...

FINENESS MODULUS OF FINE AGGREGATE TxDOT Designation Tex-402-A Effective Date August 1999 1 SCOPE 11 This method determines the fineness modulus of concrete fine aggregate used in evaluation of natural and manufactured sands for portland cement concrete 12 The values given in parentheses if provided are not standard and may not be exact...

Jun 30 2015 0183 32 Many agencies use fineness modulus variation as a convenient means of keeping quality history data on uniformity of particle-size distribution of aggregate production delivery and use Some agencies require that aggregates be processed to remain within upper and lower limits of fineness modulus...

Fineness Modulus of Aggregate It is an indication of average size of particle in the aggregate FM = Sum of all cumulative percentage retained/100 If FM=2-35 it is fine If FM=5-55 it is coarse Significance of grading of aggregat If the aggregates are of uniform size there will form voids Therefore the grading of aggregate is done...

The fineness modulus is the sum of the cumulative percentages retained on each sieve from the 150 μm sieve up to the largest sieve used divided by 100 Coarser materials have higher fineness moduli...

Mar 08 2019 0183 32 fineness modulus in size in a ranted in 475 Coarse aggregate means the aggregate which is retained on 475mm sieve when it is sieved through 475mm To find fineness modulus of coarse aggregate we need sieve sizes of 80mm 40mm 20mm 10mm 475mm 236mm 118mm 06mm 03mm and...

Fineness modulus of sand fine aggregate is an index number which repr sand It is calculated by performing sieve analysis with standard siev Th each sieve is added and subtracted by 100 gives the value of fineness modu Fineness Modulus of Sand...

Jun 30 2015 0183 32 What is the significance and use of calculating Fineness Modulus of Aggregate Why to find Fineness Modulus asked Jun 30 2015 in Concrete Technology by mfby2k engineering...

SIEVE ANALYSIS AND FINENESS MODULUS Sampling Since the reason for sampling aggregates is to determine the gradation particle size of the aggregate it is necessary that they be sampled correctly The results of testing will re ect the condition and characteristics of the...

Limits of Fineness Modulus Fineness modulus of coarse aggregate varies from 55 to 80 And for all in aggregates or combined aggregates fineness modulus varies from 35 to 65 Range of fineness modulus for aggregate of different maximum sized aggregates is given below...

Jan 01 2019 0183 32 The Fineness Modulus FM is a single number that is used to determine the aggregate distribution The lower the Fineness Modulus the smaller the average par...

To this end silt contents and some grading parameters of the most commonly used fine aggregate deposits in parts of midwestern Nigeria Benin City the coefficient of uniformity Cu curvature coefficient Cc and the fineness modulus Fm were derived by laboratory experiments to ascertain these basic properti...

Aug 02 2017 0183 32 Fineness modulus can also be used to combine two aggregate to get the desirable grading HOW TO DETERMINE FINENESS MODULUS Following procedure is adopted to calculate fineness modulus of aggregate PROCEDURE Sieve the aggregate using the appropriate sieves 80 mm 40 mm 20 mm 10 mm 475 mm 236 mm 118 mm 600 micron 300 micron 150...

Fineness modulus is typically used for sand or cement mixes which will typically fall within an FM of 2 - 4 with most coming in between 22 - 28 As a general rule the lower the fineness modulus the finer the particles will be and the higher the fineness modulus the coarser they will be...

May 24 2020 0183 32 Fineness modulus are ready index of coarseness or fineness of the material It is also defined as an empirical factor obtained by adding the cumulative percentage of aggregate retained on each of the standard sieves ranging from 80mm to 150micron...

Aug 01 2006 0183 32 The Fineness Modulus FM 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 100Sieves sizes are 150-μm No 100 300-μm No 50 600-μm No 30 118-mm No 16 236-mm No 8 475-mm No 4 95-mm 3/8-in 190-mm 3/4-in 375-mm 11/2-in and...

Conclusion In conclusion fineness modulus and percentage of absorption of coarse aggregate play an important roles in concrete mix design From the result we obtained the fineness modulus of coarse aggregates in this experiment is 4425 The specific gravity of sample coarse aggregate in saturated surface dry condition in this experiment is 650 while the bulk specific gravity of sand...

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