FINENESS MODULUS OF FINE AGGREGATE TXDOT DESIGNATION: TEX-402-A CONSTRUCTION DIVISION 1 – 2 LAST REVIEWED: SEPTEMBER 2014 Test Procedure for 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

Jul 30 2016What 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 sieves. The cumulative percentage retained on each sieve is added and subtracted by 100 gives the value of fineness modulus.

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. The thumb rule is lower the fineness modulus, particles are ...

FINENESS MODULUS (FM) - The fineness modulus (FM) is a factor obtained by adding the percentages of material in a sample of aggregate that is retained on each of the following sieves: #100, #50, #30, #16, #8, #4, 3/8", ¾", 1 ½", 3", 6". The result is divided by 100 to arrive at the fineness modulus. For conventional concrete the ...

· More fineness modulus value indicates that the aggregate is coarser and small value of fineness modulus indicates that the aggregate is finer. Sieve the aggregate using the appropriate sieves (80 mm, 40 mm, 20 mm, 10 mm, 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron & 150 micron)

Test Procedure – Fineness Modulus of Sand Take the sieves and arrange them in descending order with the largest siev using then put the ordered sieves in position and pour the sample in the to plate. Then switch on the machine and shaking of sieves should be done at If shaking is done by the hands then pour the sample in the top sieve and c and shake it inwards and outwards, vertically and ...

· Lab 4: To perform sieve analysis and to determine fineness modulus of aggregate samples (ASTM C 136-05), (ASTM C-117-04) Significance: This test method covers the determination of the particle size distribution of fine and coarse aggregates by sieving

the total water requirement of a sand for any given fineness modulus. The greatest effect appeared to be a function of the fineness modulus itself. As the fineness modulus increased the amount of water required to produce the desired flow decreased. Appendix E is a graph relating the fineness modulus to the dried mor tar cube weights.

Types of Sand & Classification of Sand. Followings are the classification of Sand: Based on the grain size of the particle, sand is classified as Fine Sand(0.075 to 0.425mm), Medium Sand(0.425 to 2mm), and Coarse Sand(2.0 mm to 4.75mm) Based on origin, sand is classified as Pit sand, River sand, Sea sand, and manufactured sand.

The S-8, sand was the best match to the ASTM gradation limits while S-6 was a little finer than S-8. 4.2. Fineness modulus The results show that there is a wide variation in the values of fineness modulus of different sands. Only two of the sands, i.e. S-6 and S-8 satisfy the ASTM fineness modulus criteria of …

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. The following limits may be taken as guidance: Fine sand. Fineness Modulus: 2.2 - 2.6, Medium sand. Fineness Modulus. : 2.6 - 2. Coarse sand.

· To determine the fineness modulus, the contractor adds the cumulative percentage-retained values and divides the sum by 100. This process must be repeated for both coarse and fine aggregate sizes. Once the fineness modulus of each size has been determined, they can be combined by means of a special equation to determine the proportions ...

· Fineness Modulus of Fine Aggregate: The sand fineness module (fine aggregate) is an index number describing the mean size of sand particles. By doing sieve analysis with normal sieves, it is measured.. The accumulated percentage kept on each sieve is applied and the sum of the fine aggregate is subdivided by 100. To find the fine aggregate fineness modulus, we require 4.75mm, 2.36mm, …

· The Fineness Modulus is an index number that indicates the mean size of the sand particle. It is calculated by the sieve analysis test with standard IS sieves. The fineness modulus of sand ranges from 2.2 to 3.2. The formula for its calculation is, Fineness modulus of Sand = (Cumulative % retained) / 100.

· Add the cumulative weight of aggregate and calculate the fineness modulus using formula: Fineness modulus for fine aggregates = ∑ 100. Fineness modulus for coarse aggregates = ∑ + 5 100. Where, C denotes the cumulative percentage of mass retained in a sieve. Determine the grade of aggregates from the Table 1 and the Table 2.

FINENESS MODULUS OF SAND. Fineness modulus of sand is defined as the cumulative amounts of aggregate that remained on each of the sieve sizes ranging from 75 mm to 150 microns are added together and divided by 100. The fineness modulus is commonly used to determine the coarseness or fineness of an aggregate.

In Building Materials in Civil Engineering, 2011 (1) Grain Gradation and Coarseness of Sand The grain gradation and coarseness of sand are determined by screen residue analysis. Grading region and fineness modulus can be used to express the gradation and the coarseness of sand particles respectively. A set of square-hole sieves whose diameters are 4.75 mm, 2.36 mm, 1.18 mm, 0.60 m, …

· Generally sand having fineness modulus more than 3.2 is not used for making good concrete. 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

An example provided in the ACI 211 standard states that, "For a fine aggregate having a fineness modulus of 2.8 and a 37.5mm nominal maximum size of coarse aggregate, the table indicates that 0.71m3 of coarse aggregate, on a dry-rodded basis, may be used in each cubic meter of concrete. The required dry mass is, therefore, 0.71 x 1600 = 1,136kg."

The fineness modulus of aggregate is simply a measurement of the average size of the aggregate. It can be calculated with the help of different sizes of the sieve. Now, let us see some numerical Examples to calculate the fineness modulus of aggregate.

· Procedure. 1 kg of dry fine aggregate is taken and sieve through IS sieves and the residues on each of the sieve are weight and the percentage and also the cumulative percentages retained on each of the sieves are calculated. The sum of this cumulative percentage divided by 100 is the fineness modulus of the fine aggregate.

To find the fineness modulus of fine aggregate we need sieve sizes of 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm and 0.15mm. Fineness modulus of finer aggregate is lower than fineness modulus of coarse aggregate. Determination of Fineness Modulus of Sand To determine the fineness modulus, we need standard sieves, mechanical sieve shaker (optional ...

•To find the fineness modulus of fine aggregate we need sieve sizes of 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm and 0.15mm. •Fineness modulus of finer aggregate is lower than fineness modulus of coarse aggregate. SAND Sample preparation • Take a sample of fine aggregate in pan and placed it in dry oven at a temperature of

Grading of aggregates is aimed at determining the mean size of the particle in a given batch of aggregates. This is commonly found by the Method of Fineness Modulus. The method can be used to determine fineness modulus of coarse aggregates, fine aggregates, and all-in …

· To determine the fineness modulus of given fine and coarse aggregates. APPARATUS: IS test sieves, square hole perforated plate 75mm, 40mm, 20mm, 10mm, and fine wire cloth of 4800, 2400, 1200, 600, 300, and 150 Microns. Weighing balance (Sensitivity 0.1 percent) sieve shaker, tray plates. INTRODUCTION: Fine aggregate is sand used in mortars.

· The bulk volume of the dry rodded coarse aggregate per unit volume of concrete for the particular maximum size of the aggregate and fineness modulus of the sand is determine. Determine the trial mix proportions and make adjustment if necessary for the materials and water cement ratio.