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 sieves The cumulative percentage retained on each sieve is added and subtracted by 100 gives the value of fineness modulus

Sep 01, 2014 · Fineness Modulus of Sand Why to Determine Fineness Modulus? Fineness modulus is generally used to get an idea of how coarse or fine the aggregate is More fineness modulus value indicates that the aggregate is coarser and small value of fineness modulus indicates that the aggregate is finer Fineness modulus of different type of sand is as per given below

The larger the fineness modulus is, the coarser the sand will be The appropriate range of fineness modulus of the sand aggregate used in normal concrete is 37–16 Both medium sand and coarse sand spiked with some fine sand (coarse:fine = 4:1) are applicable

Fineness Modulus = (63 + 198 + 391 + 613 + 734 + 965) / 100 = 2964 Fineness Modulus = 296 5 REPORT 51 Report Fineness Modulus to the nearest 001

Fineness Modulus of Sand for Concrete Fineness of fine aggregate is related to term fineness modulus ; most commonly sand Fineness modulus is a measure to define fineness of aggregate precisely it defines coarseness or fineness of aggregate to be used in concrete

The Fineness Modulus (FM) is an index number which is roughly proportional to the average size of the particles in an aggregate sample

Fineness Modulus (FM) of concrete aggregates is an empirical figure representing the mean particle size of an aggregate sample The number is required in the selection of proportions for the concrete mix design process, but its real influence is not always understood by users

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 sieves The cumulative percentage retained on each sieve is added and subdivided by 100 gives the value of fine aggregate

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 sieves The cumulative percentage retained on each sieve is added and subtracted by 100 gives the value of fineness modulus

The Fineness Modulus (FM) is an index number which is roughly proportional to the average size of the particles in an aggregate sample

Fineness Modulus of Sand affects Compressive and flexural strength of Concrete Sand, with higher FM, results in higher strength of concrete It is evident by cost benefit ratio that overall concrete mix is becoming economical if we use sand with higher FM

Apr 10, 2018 · fineness modulus of sand and sieve analysis of sand/how to decide zone of sand (fine aggregate) fineness modulus of sand and sieve analysis of sand/how to decide zone of sand (fine aggregate)

Jan 13, 2018 · Determination of fineness modulus of fine aggregate Particle Size Distribution of Fine Aggregates is the operation of dividing a sample of aggregate into various fractions each consisting of particles of the same size

Fineness Modulus (FM) of concrete aggregates is an empirical figure representing the mean particle size of an aggregate sample The number is required in the selection of proportions for the concrete mix design process, but its real influence is not always understood by users

Jul 20, 2018 · Fineness modulus offers a way to quantify the average size of the aggregate particles in the concrete mix The size of the particles, in turn, will greatly affect how easily the concrete pours and spreads, as well as its strength and durability once cured

In 1925, Duff Abrams introduced the concept of fineness modulus (FM) for estimating the proportions of fine and course aggregates in concrete mixtures 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

F 1 = Fineness modulus value of fine aggregate F 2 = Fineness modulus value of coarse aggregate F = Fineness modulus value of combined aggregate After finding the percentage of fine aggregate to be combined with the coarse aggregate by the above formula, their proportion can …

Fineness Modulus 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 The larger the fineness modulus, the more coarse the aggregate A typical fineness modulus for fine aggregate used in PCC is between 270 and 300

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 100The sieve sizes are 015 mm, 03 mm, 06 mm, 118 mm, 236 mm, 475 mm, 95 mm, 190 mm, 381 mm and larger increasing in the ratio of 2:1

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 coarse aggregate we need

Mar 07, 2016 · Fineness modulus gives the idea about how course or fine the sand is Lower FM indicates fine sand and higher FM indicates courser sandFine sand requires more cement paste due to high surface area and tendency to develop crack

Finess Modulus is just a value (number) indicating the fineness or coarseness of the aggregate So, a river sand (natural sand) will be in the range of25 or so to 27 and P-gravel (P-stone, Birds

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 The thumb rule is lower the fineness modulus, particles are smaller and higher the fineness modulus, particles are larger

Jan 13, 2018 · Many a time, fine aggregates are designated as coarse sand, medium sand and fine sand These classifications do not give any precise meaning What the supplier terms as fine sand may be really medium or even coarse sand To avoid this ambiguity fineness modulus could be used as a yard stick to indicate the fineness of sand

Sand from the local river (Cauvery) was used as fine aggregate with the fineness modulus of 2 Studies on the chloride permeability of fly ash and silica fume based ternary blended concrete The size fractions and the fineness modulus of the sand and the coarse aggregate used were also measured

What is Fineness Modulus of Sand? 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

Full Answer Fineness modulus is the sum of the total percentages of the aggregate retained on each sieve divided by 100 Natural sand or crushed stone is used to achieve a fine rating, with most particles passing through a 3/8-inch sieve The sand and stone comes from a pit, river, lake or seabed

Fineness modulus In general, however, a smaller value indicates a finer aggregate Fine aggregates range from a FM of 200 to 400, and coarse aggregates smaller than 381 mm range from 650 to 800 Combinations of fine and coarse aggregates have intermediate values

The Fineness Modulus (FM) is an index number which is roughly proportional to the average size of the particles in an aggregate sample It is obtained by adding the cumulative percentages coarser

Fineness Modulus Fineness Modulus is de! ned as an index to the particle size not to the gradation Fineness Modulus is calculated from the sieve analysis It is de! ned mathematically as the sum of the cumulative percentages retained on the standard sieves divided by 100

Fineness Modulus It is the cumulative percentage retained on standard sieve 150μm or sieves No 100 and above divided by 100 It is a single factor or an empirical number which we get from the results of sieve analysis The value of FM will not change if we add non standard sieves in standard set of sieves

The fineness modulus of Fine Aggregate is 244 For a good fine aggregate, the FM should be between 23 and 31 (ASTM Range for fine aggregates)Our result lie in this range as the graph shows that our sample is lies b/w maximum and minimum cumulative percentage passing

The influence of mixed sands on workability and strength of C30 and C50 concrete are studied The result shows that C30 and C50 concrete slump can reach 170mm Concrete workability is good and strength is qualified too Fineness modulus is the most important performance index when iron mine tailing sand is used in concrete

The application of fineness modulus and particle size distribution of aggregate is to fine the aggregate is coarse or fine wheather it can be used in making mortar or concrete If not what corrective action as to be taken is decided upon Then the particles distribution study …

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 coarse aggregate we need