fineness modulus of sand solved any examples Know More. Jun 13, 2013 fineness modulus of sand solved any exampl , Effect of Fineness of Sand on the Cost and Properties of Concrete , Concrete Sand River Sand ,...
2. A change of 1 in the amount of entrained air may alter the slump by approximately 12 inch 12 millimeters. An increase in air causes an increase in slump. 3. A fineness modulus of the sand is important because of its effect on the water demand of the mix. The finer the sand, the lower the F.M., the more water required for a given slump.
Manf sand Fineness Modulus FM 2.8 to 3.7 VDOT Spec 2.3 FM 3.1 Blend with natural sand Composite FM 2.3 FM 3.1 Mideast Concrete Division Stone Volume Per ACI 211 FM Mideast Concrete ... Mideast Concrete Division conc air 4 7 28 56 57 NS PC MS cwt cy
Nov 30, 2020 The specifications divide the sand in Zone I to Zone IV. Zone ICoarse to fine sand Zone I to III are suggested for the Concrete works. Fineness Modulus of sand is a number which represents the mean size of the particles in sand. It is calculated by performing sieve analysis with standard sieves 4.75 mm to 150 micron.
A higher fineness modulus represents a coarser material and a lower fineness modulus represents a finer material. Knowing the fineness modulus of aggregate gives you some indication of the amount of paste needed to make concrete using the aggregate. For instance, sand with a low fineness modulus has more voids in it and more particle surface ...
If gravel contains 15 sand, add with sand after group name. If fines are organic, add with organic fines after the group name. Relevant Indian Standard for Fineness Modulus Test IS 2386-1 1963 Methods of Test for Aggregates for Concrete, Part I Particle Size and Shape.
5 Fineness Modulus 6 2.2 FINE AGGREGATE M-SAND Fine aggregate used in this research is M- sand. Fine aggregates are the aggregates whose size is less than 4.75mm. Table 2 Properties of M-Sand Sl.No. Property Value 1 Specific Gravity 2.68 2 Fineness modulus 5.2 3 Water Absorption 7.0 4 Surface texture smooth
6. For the construction of the retaining structures, the type of concrete mix to be used, is Solve it.... 7. Pozzolanic properties exist in Solve it.... 8. If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm, the particular aggregate will be flaky if its minimum dimension is less than Solve it ...
Very fine or very coarse sand is objectionable for concrete mix because the very fine sand makes the mix uneconomic as finer the sand, greater the amount of water needed for a definite workability producing low strength concrete. On the other hand coarse sand produces harsh and unworkable mix. Thus the fineness modulus of sand should not be ...
of coarse aggregate to concrete for a given maximum size and fineness modulus is given by Table 4. The value from the table multiplied by the dry-roddedunit weight the oven-dry OD weight of coarse aggregate required per cubic foot of concrete. To convert from OD to saturated surface dry SSD weights, multiply by 1 absorption capacity AC.
Self-compacting concrete is a highly flowing concrete that compact under self-weight without any vibration effort. The high workability of concrete mixtures is achieved by the reduction in coarse aggregate content while increasing fines aggregate volume. Usually, coarse quartz sands with fineness modulus more than 2.5 are used as fine aggregate.
Dec 17, 2020 Fine aggregates were manufactured sand prewashing and desert sand, and the fineness modulus of manufactured sand was 3.0. The macroscopic appearance of all desert sands is shown in Figure 1.Four desert grains of sand from the Chinese areas of Kubuzi, Maowusu, Tengger, and Ulanbuh were used, with fineness modulus values of 0.27, 0.30, 1.03, and 0.57, respectively.
Effect of Fineness Modulus of Manufactured Sand on Mechanical Properties of Self Compacting Concrete D. Pavan Kumar1,C. Sashidhar2 1Reserach Scholar, Ph.D, Department of Civil Engineering, Jawaharlal Nehru Technological University, Anantapur, India
Main objective is to study effect on mechanical properties of M20 grade concrete by varying fineness proportions of fine aggregate in both river sand and M-sand, which is one of the major ...
Jul 20, 2018 Fineness modulus also provides important information about the density of the resulting concrete, as well as its compressive strength. Both of these factors must be taken into consideration when designing the concrete. For more information about the role played by fineness modulus, contact the concrete experts at Southport Concrete Corp.
Following is the test procedure for fineness modulus of sand test 1 Take the sieves and arrange them in descending order with the largest sieve on top. 2 If mechanical shaker is using for shaking, then put the sieve set in position on the mechanical shaker and pour the sample in the top sieve amp then close it with the sieve plate.
Fineness modulus 3.44 2.3.Sand Fine Aggregate Locally available river sand passing through 4.75mm sieve as per IS 383 provisions were used as fine aggregates. Specific gravity 2.85 Fineness modulus 2.79 Referring to 600 micron sieve, the percentage passing is 58.00 which confirm that fine aggregate belongs to Zone II as per Is 383-1970.
Feb 15, 2019 The sand is graded into four zones as per table given below A close look at the various ranges for each sieve size shows that zone 1 sand is the coarsest and zone 4 sand is finest whereas sand in zones 2 and 3 are moderate. Fine aggregate conforming to grading zone 4 should not be used in reinforced concrete.
Apr 12, 2020 The Fineness of cement can be Calculated by particle size analysis, by using the air permeability method, by using sedimentation method. How the size of Cement Particles affects the effects the hydration of Cement. To begin with, lets understand how the size of cement particles affects the hydration of the cement.
A type of concrete which has microscopic bubbles in it is called Air Entrained Concrete.The method of forming a small tiny bubble in the concrete is known as Air entrainment.During the concrete making process, some air entrain admixtures are added in the concrete which forms air bubbles in it.Bubbles are created in the concrete when the concrete is in the plastic stage, most of the bubbles are ...
May 30, 2018 The fineness modulus of CS and DS were 3.6 and 0.7, respectively. These values did not meet the standard range of 2.3 3.1 suggested in KS 2526 ASTM C 33. However, binary sands with DSFA ratio of 20 and 40 showed the fineness modulus of 3.02 and 2.44, respectively, which met the fineness modulus limit.
2 High quantities of fiber produce concrete with poor workability and segregation, higher entrapped air and lower unit weight. 3 A significant effect on the mode and mechanism of failure of concrete cylinders in a compression testing with fiber reinforced concrete. 4 The concrete with fiber in it
Jul 20, 2018 Fineness modulus offers a way to quantify the average size of the aggregate particles in the concrete mix. The size of the particles, in turn, will greatly affect how easily the concrete pours and spreads, as well as its strength and durability once cured.
Generally the percentage of air entrained in concrete increased with decrease in fineness modulus of sand. Quantity of air appears to be a function of the quantity of No.30-No.50 sand. Effect of grading and quantity of sand on other properties of fresh and hardened concrete is noted.
It has been established that the quantity of air increases from the lowest fineness modulus of sand and attains the peak value at fineness modulus F.M of about 2.5 and afterwards decreases sharply. The sand fraction of 300 and 150 micron has shown a marked effect on the quantity of air entrainment.
1. Fineness Modulus. It is one of the factors that influence concrete mix design since it controls the proportion of sand in concrete mixture. The overall fineness of sand is given by factor called fineness modulus, and it is found by sieve analysis based on ASTM C 33 M33 specifications or any other applicable standards.
Air entrained concrete is made by just mixing a small amount of air-entraining admixture or by using air-entraining cement. These air-entrained agents in concrete generate millions of non-coalescing air bubbles, These air bubbles act as flexible ball bearings and will modify the properties of plastic concrete regarding workability, segregation, bleeding, and finishing quality of concrete.
Due to economic effect, higher dosage of silica fume is also not advisable. Fineness modulus of fine aggregatesThe fineness modulus is the sum of accumulate percentage retained on specific sieves divide by 100 Legg, 1998. The river sand was modified by the elimination of undersize of 600 micron particles, attained fineness modulus 3.98.
Reading time 1 minuteFineness Modulus Method of Concrete Mix Design The index number, which describes the relative sizes of coarse and fine aggregates, is called as fineness modulus FM. 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,
the sand content in concrete. The sand particles retained on the 75 m sieve were gathered, washed with water to remove left over fines and dried by spreading in air for 7 days. Table 1 Concrete Mix Proportion for Casting Specimens. Fines Cement kg Sand kg Coarse Aggregate kg 12 mm max. size Fines Normal Sand 2 15.789 0.632 30 ...
Jan 01, 1994 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.
International Journal of Research and Scientific Innovation IJRSI Volume IV, Issue VII, July 2017 ISSN 23212705 Effect of Fineness Modulus of Manufactured Sand on Mechanical Properties of Self Compacting Concrete D. Pavan Kumar1,C. Sashidhar2 1 Reserach Scholar, Ph.D, Department of Civil Engineering, Jawaharlal Nehru Technological University, Anantapur, India 2 Professor, Department ...
Jul 31, 2016 Fineness modulus of sand fine aggregate is an index number which represents the mean size of the particles in sand. It is calculated by performing sieve analysis with standard sieves. The cumulative percentage retained on each sieve is added and subtracted by 100 gives the value of fineness modulus.