Quartz dune sand with rolled grains, a rounded shape and smooth surfaces , it has a fineness modulus of 0.8, an apparent density of 1.46 gcm maximum grain size of 0.63 mm. Table 2 summarises the chemical composition of TABLE2. Chemical composition of quartz dune sand For all mortar mixtures, the Sand to cement ratio weight.
Jan 01, 2021 To achieve the goals, the following materials were used Portland cement CEM I 42,5H Asia Cement Nikolsk city sand of the Aleksandrovsky open pit with the fineness modulus M kr 1,4 ground quartz sand of the Alexander quarry with a specific surface S sp 1800 2000 cm 2 g dolomite flour DF - quarry Ardon North Ossetia Alania ...
the fineness modulus of 2.5. Four types of natural quartz sand are used for producing GQS with the Blaine specific area of 283551 m2kg, having SiO 2 content of 99, 94.5, 92.1, and 84.7 ...
Jun 11, 2021 Fine aggregate is sand used in mortars. Coarse aggregate is broken stone used in concrete. The size of the fine aggregate is limited to maximum 4.75 mm 4800 microns beyond which it is known as coarse aggregate. Fineness modulus is only a numerical index of fineness, giving some idea about, the mean size of the particles in the entire body of ...
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.
range from0.1 to 0.6.The fineness modulus obtained suggest that, the aggregates used had an approximately average sizes of 600 m and 12.5mm for fine and coarse aggregates respectively. Thus, the sand used was normal sand since it lies within Zone II of geological grading. Figure 5 Test of Cylindrical Specimen for Splitting Tensile Strength.
Nov 03, 2020 Significance of fineness modulus. More fineness modulus value indicates that the aggregate is coarse and small value if fineness modulus indicates that the aggregate is finer. Procedure. Sieve the aggregate for about 10 minutes using the appropriate sieves 80mm, 40mm, 20mm, 10mm, 4.75mm, 2.36mm, 1,18mm, 600 microns, 300 microns, and 150 microns
They are not as complex as natural sand. 6. Fineness Modulus. For natural sand, one kind of fineness modulus can be graded in many ways. The fineness modulus of machine-made sand can be controlled artificially by production process, and the production can be organized according to users requirements, which is impossible for natural sand.
If fineness modulus of sand is 2.5, it is graded as very fine sand fine sand medium sand coarse sand
Now, let us see some numerical Examples to calculate the fineness modulus of aggregate. Q.1 Find the fineness modulus of coarse aggregates for which the sieve analysis is given it the table below Weight of sample 10 kg. Solution-Coarse aggregate. IS sievi mm Weight retained 9kg Cumulative weight retainedkg
On the other hand by increasing Fineness Modulus from 2.5 to 3, the strength increases from 4.25 to 4.81 MPa resulting in 13.1 increase in strength. For Every 0.1 increase in FM of sand from 2.0 to 3.0, Flexural Strength increases by 2.1 to .5. The increase in strength is more towards coarser side of sand.
May 20, 2020 The fineness modulus of ordinary concrete sand ranges from 3.7 to 1.6, that is, between the modulus coefficients of fine sand and coarse sand, especially medium sand, or coarse sand plus a small amount of fine sand, the ratio is 4 1. The particle gradation of sand refers to the mixing ratio of sand-sized particles.
Jan 01, 1994 The Importance of Fineness Modulus. In 1925, Duff Abrams introduced the concept of fineness modulus FM for estimating the proportions of fine and course aggregates in concrete mixtures. 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 ...
Natural sand is divided into river sand, sea sand and mountain sand. The thickness of sand is divided into 4 levels according to the fineness modulus. 1.Coarse sand size the fineness modulus is 3.7-3.1, and the average particle size is 0.5mm or more. 2. Medium sand the fineness modulus is 3.0-2.3, and the average particle size is 0.5-0.35mm.
highest values of fineness modulus are used instead of those with lowest values of fineness modulus. 2.2.2 In Table 2, the fineness modulii of fine aggregate has been taken as 1.26 fine sand for leaner mixes and 2.87 coarse sand for richer mixes, for computing the constants.
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. It is defined by size, being finer than gravel and coarser than silt. The composition of Sand varies, depending on the local rock sources and conditions, but the most common constituent of Sand is silica silicon dioxide, or SiO 2, usually in the form of quartz.
Jul 12, 2021 Mixed sand fineness modulus C60 The fineness modulus of the mixed sand shall not be less than 2.3, and the fineness modulus of the ultra-fine sand shall not be less than 1.1. C45-C55 The mixed sand fineness modulus is not less than 1.8, and the ultra-fine sand fineness modulus is not less than 0.9. C60 or more
LDHB quartz sand washing and purification line has been running well and the output is stable, and it breaks the series of problems such as large dust, large land occupation and large fineness modulus of finished products.
The Fineness modulus of river sand is 5.24. Manufactured Sand M-Sand was used as partial replacement of fine aggregate. The bulk density of Manufactured sand was 1.75 kgm3, specific gravity and fineness modulus was found to be 2.73 and 4.66, respectively.
Sep 01, 2014 Fineness modulus is generally used to get an idea of how coarse or fine the aggregate is. More fineness modulus value indicates that the aggregate is coarser and small value of fineness modulus indicates that the aggregate is finer. Fineness modulus of different type of sand is as per given below. Type of Sand. Fineness Modulus Range. Fine Sand.
May 03, 2020 The quartz sand used in the test is medium sand with a fineness modulus of 2.8, a density of 2.65 gcm 3 , a moisture content of 5, a mud content of 0.7, and the chemical composition is shown in Table 1.
Fineness Modulus refers to the fineness or coarseness of aggregate. This is the summation of cumulative percentage of materials retained on the standard sieves divided by 100. The classification of sand by its modulus of finesse is given on table 2. The Fineness Modulus FM has been determined according to the following equation 1 proposed ...
4 Fineness Quartz Sand Specific gravity 2.45 modulus 4.2 Water absorption 1.98 1.2 Mix proportion The very first step to assure the flow requirement of SCC is to determine the optimum dosage of quartz sand and recron fiber. Various mixes were prepared and tested to satisfy the EFNARC guidelines. Finally, a mix is chosen which gave
Quartz Sand Grading of Sand. ... The fineness modulus sand should be between 2 and 3. A smaller value of fineness modulus indicates the presence of finer particles and vice versa. If good sand is not available in the nearby of the site, the substitutes may be used as fine aggregate.
Jun 27, 2020 On the Basis of Mineral Composition Depending upon the mineral composition, Sand can be classified into quartz, felspar and carbonaceous types. On the Basis of Particle Size Depending upon the Particle Size of Sand, it can be divided into three. If the Fineness Modulus F.M lies between 2.90 to 3.20, it is named as Coarse Sand.
Fineness Modulus of Fine Aggregate. Fine aggregates is the sand used in mortars. The size of the fine aggregate is limited to maximum 4.75mm beyond which it is known as coarse aggregates. Fineness modulus is only a numerical index of fineness that gives some idea about the mean size of the articles in the entire body of concrete.
quartz sand JSC Yangelevsky GOK , Irkutsk Region 3 natural sand of 2.14 fineness modulus Promyshlennovsky mine, Kemerovo Region. The graphs show that the relatively high permeability of the crack propped with the Promyshlennovsky sand on the closure stress of 13.8 MPa indicates the prospects of its use at ...
crushed sand and fine sand. The Fineness moduli were 1.47 and 4.66 for fine and crushed sand, respectively. Fine and crushed siliceous sand were combined as 65 and 35, respectively, to achieve a fineness modulus of 2.54. Coarse aggregate with maximum size of
Mar 07, 2016 How to calculate Fineness Modulus Procure to determine Fineness Modulus. 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 amp 150 micron Note down the weight of aggregate retained on each sieve. Calculate the cumulative weight of aggregate retained on each sieve.
Oct 17, 2015 Sand Equivalent Value Test Purpose To determine the percent of undesirable particles in the fine aggregate fraction used in the design of Portland cement concrete mixtures. The method is also applicable for determining the relative proportions of detrimental fine dust or claylike material in soils. Equipment and Materials The Sand Equivalent test kit consists of
4. Example For this procedure 4.1 A typical example of the calculation of the fineness modulus is shown below Fineness N 100 - Sum Total of Percent Passing Total Percent Retained Modulus 100 Fine Coarse Combined Sieve Sizes, Aggre- Aggre- Course and where U. S. Series gate gate Fine 6535 N number of sieves involved in the sum total of ...
Fineness Modulus of Fine Aggregate Fine aggregate sand grading affects consistence and finishability. Fineness Modulus FM is an empirical calculation used to support the optimisation of a concrete mix design. It is used to determine degree of uniformity of the grading. This can create a relationship between grading and consistence and ...
Apr 18, 2020 2 The fineness modulus of medium sand is 3.0-2.3, and the average particle size is 0.35mm to 0.5mm. 3 The fineness modulus of the fine sand is 2.2-1.6, and the average particle size is 0.25mm to 0.35mm. 4 The fineness modulus of the ultra-fine sand is 1.5-0.7, and the average particle diameter is 0.25 mm or less.
Jul 31, 2016 Calculation of Fineness Modulus of Sand Let us say the dry weight of sample 1000gm After sieve analysis the values appeared are tabulated below. Therefore, fineness modulus of aggregate cumulative retained 100 275100 2.75 Fineness modulus of fine aggregate is 2.75.
Dec 15, 2020 The Fineness Modulus of Sand is an index number that indicates the mean size of the sand particles. It is calculated by performing the sieve analysis test with standard IS sieves. The fineness modulus of sand ranges from 2.2 to 3.2. To find the fineness modulus of fine aggregate required IS sieve are sizes of 4.75mm. 2.36mm, 1.18mm.0.6mm, 0.3mm ...