How do you calculate fineness modulus of sand?

After sieving, record the sample weights retained on each sieve. Then find the cumulative weight retained. Finally determine the cumulative percentage retained on each sieves. Add the all cumulative percentage values and divide with 100 then we will get the value of fineness modulus.

What is the meaning of fineness modulus?

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 100. The same value of fineness modulus may therefore be obtained from several different particle size distributions.

Why is knowing fineness modulus necessary for sand?

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.

Why do we calculate fineness modulus?

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.

Is 383 a sand?

Grading limits of Manufactured Sand fell within the grading Zone-II of fine aggregates as specified in IS 383. The Shape of the Manufactured Sand particles resembled the shape of river sand particles. Bulk density and specific gravity of Manufactured Sand were comparable to those of river sand.

What is FM sand?

The Fineness Modulus (FM) of fine aggregates (sand) is an empirical figure obtained by adding the total percentage of the sample of a sand retained on each of a specified series of sieves and dividing the sum by 100.

Does 383 stand for?

The dialing code for Kosovo is +383.

What is the FM of cement?

fineness modulus
The significance of fineness modulus (FM) is 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.

What is M sand and P sand?

If I am not mistaken, P sand stands for Plastering sand. Other types are manufactured sand(m sand), sharp sands, buildings sands etc. The difference is in the size of the particles. Plastering sand will have fine grained particles, whereas manufactured sand will have little coarser particles may be.

Is sand a mortar Code?

to those given in IS : 6508-1972* and IS : 4305-1967t shall apply. 2.1 Mortar – Mortar is a homogeneous mixture, produced by intimately mixing cementitious materials, water and inert materials, such as sand, to the required consistency for use in building together with masonry units.

Which country uses +383?

Kosovo
Kosovo* (country code +383) Communication of 15.

How is the Fineness modulus of sand calculated?

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. Fine aggregate means the aggregate which passes through 4.75mm sieve.

What is the Fineness modulus of a sieve?

Therefore, fineness modulus of aggregate = (cumulative % retained) / 100 = (275/100) = 2.75 Fineness modulus of fine aggregate is 2.75. It means the average value of aggregate is in between the 2 nd sieve and 3 rd sieve. It means the average aggregate size is in between 0.3mm to 0.6mm as shown in below figure.

Which is the best definition of fineness modulus?

Definition of Fineness Modulus : Type of Sand Fineness Modulus Range Fine Sand 2.2 – 2.6 Medium Sand 2.6 – 2.9 Coarse Sand 2.9 – 3.2

How to calculate the Fineness modulus of a combined aggregate?

Fineness modulus of combined aggregates. Fineness modulus of combined aggregates is always between the Fineness modulus of aggregates and combined modulus coarse aggregate have intermediate value. it is given by the formula: F = ( F 1 × Y + F 2 × ( 1 − Y ) ) {\\displaystyle F=(F_{1}\imes Y+F_{2}\imes (1-Y))}. here.