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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 concrete of the same strength." Before calculating FM, lab technicians perform a sieve analysis to determine the particle size distribution, or grading, of the aggregate sample.
Aug 14, 2019· 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.
METHOD OF CALCULATION OF THE FINENESS MODULUS OF AGGREGATE
Sieve shown in pic below is not the actual 90µm seive.Its just for reference. Procedure to determine fineness of cement i) Weigh approximately 10g of cement to the nearest 0.01g and place it on the sieve. ii) Agitate the sieve by swirling, planetary and linear movements, until …
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.
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 […]
3.4.3 Fineness Modulus. ... the numbers regulated in Table 5.5 can be drown into sieve-analysis curves of the upper and the lower limits of three grading regions, shown in Figure 5.2. The sand of zone II is proper for the preparation of concrete; if the sand of zone I is selected, the sand ratio should be improved and the amount of cement ...
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 ...
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). ...
Sieve Analysis.As we know that the Fineness modulus is a measurement of the coarseness or fineness of a given aggregate, higher the FM the coarser the aggregate. The above table is showing us that the Laurence pure sand is coarser then Chenab sand …
Sieve analysis is one of the important practices in civil engineering as it is used for finding particle size distribution of particular aggregate. It is also used for finding the fineness modulus of aggregate. Now what is the use of particle size...
Nov 03, 2017· Fineness test of cement using sieve analysis this. Excessive fineness makes cement to shrink and increases the setting time.
CHAPTER 2 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.
Fineness modulus is not a precise value, as it provides a way to estimate the amount of aggregate needed to proportion mix designs. Fineness modulus is determined using percentages of the size fractions from the sieve analysis and calculated for any designated series of sieve sizes.
Sieve Analysis Decantation Deleterious and Chert Test Equipment Verification Laboratory Set-Up CHAPTER TWO - SAMPLING Sampling Techniques Safety ... Fineness Modulus Sieve Analysis for Dense Gradation materials Deleterious Materials Deleterious Materials in Coarse Materials Deleterious Materials in Natural Sand
Mar 13, 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.
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 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: = (× + × (−)) here
Aug 26, 2018· Determination of Fineness Modulus of Fine Aggregate - Civil Feeds. The fineness modulus of Fine Aggregate is 2.44. For a good fine aggregate, the FM should be between 2.3 and 3.1 (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.
Standard Test Method for Sieve Analysis of fine and coarse aggregates from different sources. (ASTM C13605
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.com.
Determination of Fineness Modulus of Coarse Aggregates. To find fineness modulus we need to perform sieve analysis and for that above mentioned sieve sizes, mechanical shaker and digital weigh scale are required. Sample preparation. Take a sample of coarse aggregate in pan and placed it in dry oven at a temperature of 100 – 110 o C. After ...
The aggregate sample is sieved through a set of sieves and weights retained on each sieve in percentage terms are summed up. On dividing this sum by 100, The Fineness Modulus of that aggregate is determined. This helps in deciding about the quantity of aggregates of known fineness moduli to be mixed for obtaining a concrete of desired density.
Excel Sheet For Sieve Analysis Of Aggregate And To Calculate Fineness Modulus . 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 …
Calculate the fineness modulus for the following fine aggregate. Is this aggregate finer or coarser than the one shown in Table 5.7 in your text? Sieve Size Amount Retained (g) 3/8 in. 0.0
