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.
contact usrange of 10% - . ... Properties Result value Fineness Modulus 10 mm Aggregate (10mm CA) 5.956 ... Fineness modulus and Specific gravity of stone dust were 2.60 and 2.40 respectively. Particle ...
contact us· But in case of fully saturated sand the water films are broken and the volume becomes equal to that of dry sand. Fineness Modulus. 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.
contact usAbstract: Based on a series tests, the properties of proto-machine-made sand of gravel such as grain feature, fineness modulus, grading, density, void ratio and value as well as the fineness distribution of stone powder were studied, the influences of content of stone powder on these properties of sand and strength of cement mortar were investigated.
contact usired grading (Zone II) and fineness modulus (2.4 to 3.1) can also be achieved consistently in the case of stone dust. Processed stone dust can improve both strengthand flexural through better bond compared to river sand. of Stone dust 1. Have no impurities like silt, clay and pebbles. 2. Possess less curing time. 3.
contact usFineness 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 ...
contact usThe fineness modulus of rock dust is in the range of 2 to 2.2 as compared to 2.4 to 2.6 for fine sand. This study aims at using stone dust as partial replacement of sand in concrete to study its effects on workability and other mechanical properties of concrete.
contact usof the concrete made by normal sand and stone dust where the coarse aggregate is crushed stone (stone chips). ... aggregate and hence the fineness modulus of stone powder and sand was calculated and rest of ingredients ... concrete with marble powder in the range of optimal values is higher than the compressive strength of reference concrete. ...
contact usAn 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."
contact usWhat is the significance of fineness modulus - Answers . Finess Modulus is just a value (number) indicating the fineness or coarseness of the aggregate. So, a river sand (natural sand) will be in the range of2.5 or so to... More details » Get Price
contact us· It became evident that the fineness modulus value of all the sands increased after optimization and all of the values falls within ASTM limiting range of 2.3 to 3.1. 72 Gauhar Sabih et al. / Procedia Engineering 145 ( 2016 ) 66 â€" 73 5.5.2.
contact usAs fineness modulus of sand changes from 2.0 to 2.5 there is an increase in compressive strength from 43.07 to 49.00 MPa. i.e. strength increases by 14%. On the other hand by increasing Fineness Modulus from 2.5 to 3, Compressive strength increases from 49.00 to …
contact usMenossi11 found that the fineness modulus used in experimental work was equal to 2.48, very close to the value obtained with natural sand. Schumacher12 obtained a fineness modulus value equal to 2.77 for the stone dust, while with river sand it was equal to 2.11. In this way, it is clear the relationship between the employment conditions of the
contact usThe bigger the fineness modulus is, the more coarse the sand is. The fineness modulus of the sand used in ordinary concrete is within 3.7 ~ 1.6.And if M x is within 3.7 ~ 3.1, it is coarse sand; if M x is within 3.0 ~ 2.3, it is medium sand; if M x is within 2.2 ~ 1.6, it is fine sand; and if M x is within 1.5-0.7, it is superfine sand which should be considered specifically when concrete is ...
contact usRange of Values Sieve Sizes, Aggre- Aggre- Coarse and U. S. Series gate gate Fine 65:35 3.1 The same value of fineness modulus may 1-1/2-in. (38.1-mm) -- 96 97 be obtained from several different particle-size 3/4-in. (19.0-mm) - - 51 68 distributions.
contact ushave shown that the values of Bulk density of the samples range between 1.39 g/cm3 – 1.55 g/cm3, Fineness Modulus value range between 1.5 – 2.1; with Wurno samples having the highest value of 2.1. The particle density values range between 2.61 – 2.68 kg/m3. Moisture content values range between 1.2 – 3.1% with Wurno
contact usLimits of Fineness Modulus Fineness modulus of coarse aggregate varies from 5.5 to 8.0. And for all in aggregates or combined aggregates fineness modulus varies from 3.5 to 6.5. Range of fineness modulus for aggregate of different maximum sized aggregates is given below.
contact us16.63% from sand to stone powder (14.04 to 16.84 Mpa). The highest value of compressive strength of concrete is tasted for stone powder is 21.16 Mpa for 28 days whereas concrete made by sand shows a value of 18.95 which is 10.44% smaller than the value of stone powder. Figure 8 shows that the compressive strength of normal
contact us2020713 fineness modulus of fine aggregate is 275 it means the average value of aggregate is in between the 2 nd sieve and 3 rd sieve it means the average aggregate size is in between 03mm to 06mm as shown in below figure values of fineness modulus of sand fineness modulus of fine aggregate varies from 20 to 35mm more. View Details.
contact us· 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.
contact usWith careful selection of the gradation, it is Fig. 1 Crushed stone dust mortar at 85% flow (no segregation) possible to achieve high bulk density, and low permeability. Sieve analysis of fine aggregates Mortar composition as well as water-cement ratio determined as per IS: 383 (1970) given in Table 3. affects the workability.
contact usFineness modulus of fine aggregate varies from 2.0 to 3.5mm. Fine aggregate having fineness modulus more than 3.2 should not considered as fine aggregate. Various values of fineness modulus for different sands are detailed below. Type of sand Fineness modulus range Fine sand 2.2 – 2.6 Medium sand 2.6 – 2.9 Coarse sand 2.9 – 3.2
contact usFineness modulus was 6.9 for 10 ... sand with stone dust higher than 20% produced the value of slump for both normal and high strength concretes lower than those concretes with natural sand only ...
contact usStone dust improves pozzolanic activity in concrete along with filling voids by better pack-ing and improves concrete durability.The fineness modulus of rock dust is in the range of 2 to 2.2 as compared to 2.4 to 2.6 for fine sand. This study aims at using stone dust as partial replacement of sand in concrete to study its effects on
contact usTABLE 5.7 Sample Calculation of Fineness Modulus Percentage of Individual Fraction Retained Cumulative Percentage Percentage Pass Sieve Size Retained by Weight ing by Weight by Weight 9.5 mm (3/8 in.) 100 4.75 mm (No. 4) 98 2.36 mm (No. 8) 15 85 13 1.18 mm (No. 16) 25 40 60 0.60 mm (No. 30) 55 15 45 0.30 mm (No. 50) 22 23 77 0.15 mm (No. 100) 20 97 Pan 100 Total 286 100 Fineness Modulus …
contact usoptimum fineness modulus (F.M)*. The curve in Fig. 1 was drawn from Wilk and Grants 2 table of values published in rock products in February, 1948. The compressive strengths shown were obtained from 3 X 6 inch cylinders made from a dry (concrete block) mix, cured in water 21 days and dried to constant weight before testing. Each
contact usThe fineness modulus for river sand was 2.502 whereas for stone dust it was 2.468 (sieves ranging from 4.75mm – 150 microns). From the above it was found that both the given river sand and stone dust having similar properties.
contact usAggregates in Concrete gradings may have the same fineness modulus. Aggregate Characteristics Affecting Concrete Behavior. Chat Online. 14. AGGREGATES - cvut. 14. AGGREGATES Aggregate is a coarse aggregate aggregate is. Fineness Modulus is defined as the sum of the cumulative percentages retained on specified sieves.
contact us· 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 ...
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