According to the fineness modulus (MX), the specifications of machine-made sand can be divided into 4 types: coarse, medium, fine and extra fine: 1. Coarse Sand: the fineness modulus is 3.7-3.1, and the content of particles larger than 0.5mm exceeds 50% of the total weight, and the average particle size is …
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.
FINENESS MODULUS OF FINE AGGREGATE TxDOT Designation: Tex-402-A Effective Date: August 1999 1. SCOPE 1.1 This method determines the fineness modulus of concrete fine aggregate used in evaluation of natural and manufactured sands for portland cement concrete. 1.2 The values given in parentheses (if provided) are not standard and may not be exact
Fineness Modulus is an indication grading of particle size. More the value of FM more coarser the aggregate is. Now because density vary with particle size, and also the void spaces inside the concrete is a function of aggregate size, it is very i...
Fineness modulus gives the idea about how course or fine the sand is. Lower FM indicates fine sand and higher FM indicates courser sand.Fine sand requires more cement paste due to high surface area and tendency to develop crack.
Nov 21, 2017· The sand used for Brickwork should have a fineness modulus of 1.2 to 1.5. Sand used in plastering:-The sand used for plastering should have a fineness modulus of less than 1.5. Sand used in making Concrete:-The Sand used in making concrete should have a fineness modulus of 2.5 to 3.5. Also Read: Important Properties of Concrete
The fineness modulus should not be more than 1.5 and silt content should not be more than 4% in this type of sand. Concrete Sand. For the concreting purpose, we generally use coarse sand. The fineness modulus of this sand should be 2.5 to 3.5 and it should not contain more than 4% silt.
Base Fineness Modulus. The average fineness modulus typical of the source for a specific fine aggregate. Cobblestones (Cobbles). Rock fragments, usually rounded or semi-rounded, with an average dimension between 3 inches and 10 inches. 902.03. Coarse Aggregates for Portland Cement Concrete. For
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 ...
what is the fineness modulus of natural sand. What is Fineness Modulus of Sand (Fine Aggregate) and, So, a river sand (natural sand) will be in the range of25 or so to 27 and P-gravel (P-stone, Birds What is the fineness modulus of sand answers Finess Modulus is just a value (number) indicating the fineness or coarseness of the aggregate So, a river sand (natural sand) will be in.
Jun 27, 2020· Excel Sheet For Sieve Analysis Of Aggregate And To Calculate Fineness Modulus. A sieve analysis (or gradation test) is a practice or procedure used (commonly used in civil engineering) to assess the particle size distribution (also called gradation) of a granular material.
For any type of mix proportioning sieve analysis results and fineness modulus is required. here is the excel sheet which includes calculations of fineness modulus. Hope it will consume less time in case of repetitive calculations. Excel Sheet For Sieve Analysis Of Aggregate And To Calculate Fineness Modulus- engineeringcivil
Sep 01, 2014· What is Fineness Modulus of Aggregate? 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 of Sand Why to Determine Fineness Modulus? Fineness modulus is generally used to get an ...
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 …
The fineness modulus of a sample of aggregate is an index number which is roughly proportional to the average size of particle in the aggregate, that is, coarser the aggregate the higher the fineness modulus.
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. It reduces the ambiguity in the classification of fineness of sand.
Fineness modulus of 7.17 means, the average size of particle of given coarse aggregate sample is in between 7 th and 8 th sieves, that is between 10mm to 20mm. Limits of Fineness Modulus. Fineness modulus of coarse aggregate varies from 5.5 to 8.0. And for all in aggregates or combined aggregates fineness modulus varies from 3.5 to 6.5.
As fineness modulus of sand changes from 2.0 to 2.5 there is an increase in compressive strength from 43.07 to 49.00 MPa. i.e. strength increases by 14%. On the other hand by increasing Fineness Modulus from 2.5 to 3, Compressive strength increases from 49.00 to …
Question is ⇒ If fineness modulus of sand is 2.5, it is graded as., Options are ⇒ (A) very fine sand, (B) fine sand, (C) medium sand, (D) coarse sand, (E), Leave your comments or Download question paper.
Fineness Modulus of Sand. To calculate the fineness modulus of sand, the sum of the cumulative percentages retained on the following sieves are divided by 100: 150μm (No. 100), 300μm (No. 50), 600-μm (No. 30), 1.18mm (No. 16), 2.36mm (No. 8), and 4.75mm (No. 4) for fine aggregates.
Jan 22, 2018· Determination of Fineness Modulus of Fine and Coarse Aggregates by Sieve Analysis - Duration: 7:52. JSP CIVIL Engineering 3,572 views. 7:52.
Fineness modulus = (Summation of cumulative % of weight retained up to 150 microns) / 100. Fineness modulus = 240/100. Fineness modulus = 2.4. So, in our case, it is Fine Sand. Value of fineness Modulus of Sand
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.
Fineness modulus of sand is an index arrived based on the particle size analysis and then dividing the sum of the cumulative percentage of particles retained on the sieves by 100. it is important to note that higher the fineness modulus, higher is the coarser portion of the sand. The fineness modulus plays very important role in mix proportion ...
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.Sieves sizes are: 150-μm (No. 100), 300-μm (No. 50), 600-μm (No. 30), 1.18-mm (No. 16), 2.36-mm (No. 8), 4.75-mm (No. 4), 9.5-mm (3/8-in.), 19.0-mm (3/4-in.), 37.5-mm (11/2-in.), and larger ...
Fineness modulus is a single factor computed from the sieve analysis and is defined as the sum of the cumulative percentages retained on the sieve of the standard series divided by 100. The fineness modulus can be looked upon as a weighted average size or a sieve on which the material is retained, and the sieves being counted from the finest.
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.
The fineness of the sand plays an important role in the finishability of the concrete mix, and even small changes in fineness can affect finishing. The fineness modulus is a single parameter that describes the grading curve and can be useful in checking the uniformity of grading. It is defined as the summation of the cumulative percent retained ...
