The dividing line between fine and coarse aggregate is the 3/8-inch sieve. The fineness modulus (FM) is an index of the fineness of an aggregate. The FM is calculated by adding the cumulative percentages by mass retained on each of a specified series of sieves and dividing the sum by 100 (see Table 1).
Fineness Modulus The fineness modulus is related to gradation. This term is commonly associated with aggregates for portland cement concrete. The purpose is to determine the relative coarseness or fineness of the aggregate grading. The fineness modulus is computed in …
Feb 10, 2015· This gives the fineness modulus value of fine aggregate. Let it be F. Step-4 (Calculating Ratio of Fine Aggregate to Coarse Aggregate) Let " x " is the percentage of fine aggregate to be combined with coarse aggregate. x can be calculated using the formula given below. x = [(F 2-F)/(F-F 1)]*100. Where, F 1 = Fineness modulus value of fine ...
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 ...
The same fineness modulus can represent a number of different size distributions and grading curves. 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.
Jul 20, 2018· Specifications: Fineness modulus must be within (2.2 – 3.2) ♦ Fine Sand 2.2 – 2.6 ♦ Medium Sand 2.6 – 2.9 ♦ Coarse Sand 2.9 – 3.2 The grading of aggregate is shown by means of grading curves One of the most commonly referred practical grading curves are those produced by Road Research Laboratory as shown below;
Define fine modulus of aggregate. Describe ASTM limit of fineness modulus for both coarse and fine aggregate. Step-by-step answers are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.* Q: Supports A and B of the pin-ended column shown are at a fixed ...
FINENESS MODULUS OF FINE AGGREGATE TXDOT DESIGNATION: TEX-402-A CONSTRUCTION DIVISION 2 – 2 LAST REVIEWED: SEPTEMBER 2014 4.2 Calculate the Fineness Modulus (FM): FM Cumulative percent retained= ( ) / 100 4.3 Table 1 lists example amounts for discussion purposes. Table 1—Amounts for Example Calculations
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. Why to Determine Fineness Modulus? Fineness modulus is generally used to get an idea of […]
1. Calculate the fineness modulus for the aggregate below. Is this fine aggregate suitable for use in concrete? Sieve Size 4.75 mm (#4) 2.36 mm (#8) 2.00 mm (#10) 1.18mm (#16) 600 μm (#30) 400pm (#40) 300 μm (#50) 150 ㎛ (#100) 75 μm(#200) Pan Amount Retained (g) 0.0 33.2 56.9 83.1 151.4 23.2 17.2 72.0 58.3 15.6
2 · The grading and grading limits are usually expressed as the percentage material (by weight) passing each sieve. The seven standard ASTM C 33 sieves for fine aggregate grading and as follows:; Sieve size from top to bottom. 3 / 8 in. (9.5 mm). No.4 (4.75 mm) No.8 (2.36 mm) No. 16 (1.18 mm) No. 30 (600 μm) No. 50 (300 μm) No. 100 (150 μm) The thirteen standard ASTM C 33 sieves for coarse ...
Jul 30, 2016· Fine aggregate means the aggregate which passes through 4.75mm sieve. 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.
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.
of Fine Aggregate Order by Phone: 800.444.1508 / 740.548.7298 • Order Online: ... Pan Pan 17.5 500.3 Total Sample Weight Sum = 296.4 Fineness Modules = Sum of Cumulative Percent Retained/100 Fineness Modulus = 296.4/100 = 2.96. Title:
Fineness Total Modulus 100 0 0 0 4 21 46 74 89 95 329 = 3.29 3.29 4 49 91 100 100 100 100 100 100 744 7.44 3 32 59 66 72 81 91 96 98 598 5.98 C 104 4.2 As noted in the standard definition of fineness modulus (para 1.1) and the example shown in para 4.1, the fineness modulus is based on the percentages of aggregates retained on a specificed ...
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 ...
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 …
To find fineness modulus of coarse aggregate we need sieve sizes of 75mm, 37.5mm, 19mm, 9.5mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm and 0.15mm. Fineness modulus is the number at which the average size of particle is known when
Fineness modulus method; Minimum voids Method; Arbitrary Method. By this method such mixes as 1:1.5:3 ( 1 part cement, 1.5 part sand and 3 part coarse aggregate). 1:2:4, 1:3:6 are arbitrarily chosen by volume. The quantity of water required for mixing is determined …
To find fineness modulus of coarse aggregate we need sieve sizes of 80mm, 40mm, 20mm, 10mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm and 0.15mm. Fineness modulus …
CIV-E1010 Building Materials Technology (5 cr) (4/27) 4.1.1.4 Recycled aggregates (4) • Recycled aggregate is derived from crushing inert construction and demolition waste. It may be classified as . recycled concrete aggregate (RCA) when consisting primarily of crushed concrete or more general . recycled aggregate (RA)
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."
Fineness modulus is calculated by dividing by 100 the sum of the cumulative percents retained on specified sieves. For fine aggregates, the fineness modulus ranges from 2.00 to 4.00, while coarse aggregates range from 6.50 to 8.00, when all material is finer than 1-1/2 in. (38.1 mm).
As per ACI 211.4R-93 [30], a mixture of concrete has been recommended to use the fine aggregate with fineness modulus values from 2.4 to 3.2. A Mix Design Procedure for Alkali-Activated High-Calcium Fly Ash Concrete Cured at Ambient Temperature.
Aggregates which mainly pass a 4-mm sieve are termed 'fine' aggregates. The coarseness or fineness of sands is described by d/D sizes in mm of 0/1, 0/2 and 0/4. A further classification is provided based on either the percentage passing a 500-μm sieve (Table 15.7) or the fineness modulus, for coarse, medium and fine grading sands (C, M and F).
Oct 27, 2013· Fineness modulus is determined separately by sieving coarse and fine aggregates through the following set of sieve. IS sieves for coarse aggregates are 80 mm, 40 mm, 20 mm, 10 mm and 4.75 mm. IS sieves for fine aggregates are 1 mm, 600, 300, 212, 150, and 75 .
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 aggregate …
May 24, 2020· 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 …
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 object of this experiment is to determine the fineness modulus and hence to plot the particle size distribution curve for the sample of fine aggregate supplied. Theory. 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 ...