What is fineness modulus of sand fine aggregate and. Before calculating fm, lab technicians perform a sieve analysis to determine the particle size distribution, or grading, of the aggregate sample. Fineness modulus the fineness modulus is an indicator of the fineness of an aggregate and is most used for evaluating fine aggregates. What is fineness modulus of coarse aggregates and its calculation. Dnanc onur 1 mustafa tuncan 2 and ahmet tuncan 3 abstract this study presents an experimental laboratory investigation about the shear modulus of reconstituted toyoura sand samples by using resonant column test device. Pdf for sieve analysis to determine the fineness modulus. Pdf experimental study on impact on fineness of sand and. Afs sand casting conference october 2022, 2014 indianapolis, in usa significance of total combustibles loi loss on ignition loi determines the total amount of combustible material in the green sand.
On the other hand by increasing fineness modulus from 2. The effects of confining stress, of grouting, and of the type of grout on the shear modulus and the damping ratio were studied. 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 appropriate range of fineness modulus of the sand aggregate used in normal concrete is 3. Pdf effect of fineness modulus of manufactured sand on. 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. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any sizereduction requirements including, effect of fineness modulus of sand on concrete, quarry, aggregate, and different kinds of minerals. 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. Due to over consumption of natural river sand deposits creating several environmental issues, as an alternate. Optimization of gradation and fineness modulus of naturally fine sands for improved performance as fine aggregate in concrete conference paper pdf available in procedia engineering 145 may.
The result is divided by 100 to arrive at the fineness modulus. The higher the fm is, the coarser the aggregate is. However, it is preferable to have minimum fineness modulus of l4 in case of crushed stone sands and crushed gravel sands and a f. 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. 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. Fineness modulus of sand sand construction aggregate.
The above table is showing us that the laurence pure sand is coarser then chenab sand and similarly sargodha crush is. In this video, we will see how to do the sieve analysis and find out the fineness modulus of sand. May 10, 20 thus the object in this paper is to find the best fineness modulus of sand to get. The mongolian concrete conference is the major concrete conference in mongolia. Comparison of percentage improvement of optimized sands.
The geotechnical designer is responsible for selecting the geotechnical engineering properties that are appropriate for the analyses required for design of the project. Specifications for coarse and fine aggregates from natural sources for concrete. Follow the steps shown below to blend aggregate using fineness modulus value. A laboratory investigation for shear modulus of silty sand. Luke snell was instrumental in starting this conference in 2002 and has contributed. The quantity of gas forming materials in the green. Maximum nominal size, ssd specific gravity and 24 h water absorption of used. Fineness modulus of sand why to determine fineness modulus. Jul 05, 20 the fineness of sand affects the cost and properties of concrete. For any type of mix proportioning sieve analysis results and fineness modulus is required. Excelsheetforsieveanalysisofaggregateandtocalculate.
Effect of fineness of sand on the cost and properties of concrete. The fineness modulus is a single parameter that describes the grading curve and can be useful in checking the uniformity of grading. At about 35% relative density dr, the sand was used to represent a loose soil formation with prototype depth of 30 m. The particle shape is cubical, which is almost closer to rounded river sand. Another issue associated with river sand is that of obtaining required grading with a fineness modulus fm of 2. A blend of fine aggregate 70% qibla bandi and 30% of chenab river sand having fineness modulus of 2. The cumulative percentage retained on each sieve is added and subtracted by 100 gives the value of fineness modulus. May, 20 binq mining mining equipment pdf for sieve. The research on the fineness modulus and fractal dimension of. Fineness modulus of finer aggregate is lower than fineness modulus of coarse aggregate. An empirical factor obtained by adding the total percentages of a sample of the aggregate retained on each of a specified series of sieves, and dividing the sum by 100. It is an empirical number relating to the fineness of the aggregate. Fineness modulus is a single factor computed from the sieve analysis and is defined as the sum of the cumulative percentages retained. Analysis of feed particle fineness 936 determination of modulus of uniformity a screen mesh b % of material on each screen c totals of column b d e figs.
Excel sheet for sieve analysis of aggregate and to calculate fineness modulus. Determination of fineness modulus of sand to determine the fineness modulus, we need standard sieves, mechanical sieve shaker optional. Crdc10480 method of calculation of the fineness modulus. For aggregates used in pcc, another common gradation description for fine aggregate is the fineness modulus. Step by step guide for blending aggregates using fineness modulus value step1 calculate fineness modulus of fine aggregate. Determination of fineness modulus of coarse aggregates. For this purpose, more than 2100 bender elements tests were carried out on 188 saturated samples of sand mixed with di erent nes types and content. The shear modulus and damping ratio of a pure sand and of a sand grouted with three different grouts were determined using resonant column tests and cyclic triaxial tests. Snell and bryan castles 1 this paper was published in the proceedings of the 10th annual mongolian concrete conference. The fineness modulus fm is an empirical figure obtained by adding the total percentage of. Mechanical and physical properties of astm c33 sand dtic.
The cumulative percentage retained on each sieve is added and subdivided by 100 gives the value of fine aggregate. Sieve analysis and fineness modulus of sand youtube. Fineness modulus is generally used to get an idea of how coarse or fine the aggregate is. Fineness modulus of fine aggregate txdot designation. Abstract the effects of various fineness moduli fm of fine aggregate on the engineering properties of high. Fineness modulus list the fineness modulus of the fine aggregate. Self compacting concrete scc is one of the innovative construction material based on the performance in both fresh and hardened state. Method of calculation of the fineness modulus of aggregate pdf. Design manual engineering properties of soil and rock. In general, however, a smaller value indicates a finer aggregate. It should be noted that the fineness modulus of standard sand was around 2. The relationship between dry rock bulk modulus and porosity. In this article through grinding colorless waste glasses respectively 1,2,3,4,5,6,7,8,10,20,30 min, then calculate the fineness modulus and fractal dimension of waste glass powder, it is concluded that with the extension of grinding time the fineness modulus of the waste glass powder show the trend of decreasing first then increasing and decreasing again in last,and it is mainly decided by the. Smallstrain shear modulus and shear strength of an.
Fineness modulus is a tool in concrete mix design process for evaluating aggregates and determining mean particle size of the aggregate sample. Fineness modulus article about fineness modulus by the free. Both medium sand and coarse sand spiked with some fine sand coarse. Standard specification for fine aggregate for asphalt. Effect of fineness of sand on the cost and properties of. To find fineness modulus we need to perform sieve analysis and for that. Fineness modulus of coarse aggregates and its calculation. 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. It is described in astm c 125 and is a single number used to describe a gradation curve. Improvement to chaurakund chopan bhutrum hatru roa tender. It is found out by sieve analysis test of standard size in the laboratory. Fineness modulus is a term used as an index to the fineness or coarseness of sand. In uence of nes content and type on the smallstrain shear. The effect of using low fines content sand on the fresh.
Introduction dynamic shear modulus gives information about dynamic soil response and deformability characteristics. 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. Fineness modulus of sand rangeder weinlieferant fineness modulus of crusher dust goldhead sand fineness modulus crusher and grinding mill info in crusherb2b part contact supplier 14 aggregates aggregate is a collective term for the mineral materials such as sand get price fineness modulus of fine sand pdf india get price. Fineness modulus is defined as the sum of the cumulative percentages retained on specified sieves. As fine aggregate comprises up to 30% of the total volume of concrete, consequently gradation and fineness modulus of sand are among principal factors. It is informational only and not an official part of the standard. Sieve analysis aggregate gradation sieve analysis is the distribution of particle sizes expressed as a percent of the total dry weight. The following proportions are usually maintained in cement. Experimental study on impact on fineness of sand and m sand in m20 grade of concrete article pdf available in materials today.
The sand soil used was well graded al white silica sand, medium angular with particle sizes in the range of 0. Fineness modulus of fine aggregate sand and sieve analysis. Can changes in fine aggregate affect concrete finishability. Effect of fineness modulus of manufactured sand on. Chapter 2 sieve analysis and fineness modulus sampling. The importance of fineness modulus concrete construction. Stiffness of sands through a laboratory test database. Fineness modulus of coarse aggregate of size 20mm is 7.
Fineness modulus of sand indian standard crusher export. The larger the fineness modulus, the more coarse the aggregate. Crdc10480 method of calculation of the fineness modulus of. Dynamic shear modulus is defined as the ratio of the shear stress to the shear strain in the literature. Effect of fineness of sand on density of concrete after measuring the slump, several 150 mm cubes were filled. The value for tine aggregates commonly ranges from 2.
Pdf for sieve analysis to determine the fineness modulus of sand. Gradation is determined by passing the material through a series of sieves stacked with progressively smaller openings from top to bottom and weighing the material retained on each sieve. Apr 10, 2018 fineness modulus of sand and sieve analysis of sand how to decide zone of sand fine aggregate. 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. Dec 09, 2017 in this video, we will see how to do the sieve analysis and find out the fineness modulus of sand. Shear modulus and damping ratio of grouted sand sciencedirect. Fineness modulus of sand fine aggregate is an index number which represents the mean size of the particles in sand. This method determines the fineness modulus of concrete fine aggregate used in evaluation of natural and manufactured sands for portland cement concrete. Poissons ratio, strength characteristics friction angle, cohesion, com. So, in the calculation of coarse aggregate we need all sizes of sieves.
Excel sheet for sieve analysis of aggregate and to. The fineness modulus values obtained for sand, quarry dust and coarse aggregate are given in tables 3. Optimization of gradation and fineness modulus of naturally. Effect of fineness modulus of sand on concrete products. The fineness test of cement is done by sieving cement sample through standard is sieve. Dynamic properties of soft clay and loose sand from seismic. Susceptibility of jhelum river bed aggregate to alkali silica reaction and its potential as construction aggregate. Fineness modulus value can be used as a technical way to blend coarse aggregate with fine aggregate to produce desired grading.
Two kinds of coarse aggregates stiff and soft and three kinds of fine aggregates fm3. For every 5% increase in fm of sand, admixture dosage reduced by 0. Excavation for foundation in earth, soils of all types, sand, gravel, soft murum including shoring and strutting, dewatering as necessary and disposing off excavated stuff as directed etc. It is calculated by performing sieve analysis with standard sieves. Pdf optimization of gradation and fineness modulus of. The results of testing will re ect the condition and characteristics of the aggregate from which the sample is obtained. Physical properties of coarse aggregate of size 20mm s.
Hope it will consume less time in case of repetitive calculations. Fineness test of cement and its significance tests on cement. Astm d1073 16 standard specification for fine aggregate for. To find the fineness modulus of fine aggregate we need sieve sizes of 4. 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. The number or sizes of sieves used in the nest depends on the type of soil and the distribution of the particle sizes. Local mining sand low fines content sand with fineness modulus and saturatedsurfacedry specific gravity of 2. Empirical relations for g0 the smallstrain shear modulus for granular soils is. The weight cement particle whose size greater than 90 microns is determined and the percentage of retained cement particle are calculated. To find fineness modulus of coarse aggregate we need sieve sizes of 80mm, 40mm, 20mm, 10mm, 4. The larger the fineness modulus is, the coarser the sand will be. The fineness modulus fm is an empirical figure obtained by adding the total percentage of the sample of an aggregate retained on each. What is fineness modulus of sand fine aggregate and calculation. Papers at this conference are published in either mongolian or english.
Silica sand from any one source, having a variation in fineness modulus greater. A typical fineness modulus for fine aggregate used in pcc is between 2. This abstract is a brief summary of the referenced standard. 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 fineness modulus is computed by adding the cumulative percentages retained on the 6. The green sand sample is fired at 1800f 982c until it reaches a constant weight. Strength, modulus and cbr values for artificially cemented sand. Repairs to primary health center at yenegur tq ome tender. These equations assume that the shear modulus is independent of fluid content but not porosity, which will be discussed later, or. Grading, fineness modulus and plasticity index shall be tested to meet the requirements prescribed. Fineness modulus of sand free download as powerpoint presentation.
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