fineness modulus of sand effects on air in ncrete
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fineness modulus of sand effects on air in ncrete

Sand Grading Influence on Air Entrainment in Concrete

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.

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Effect of Sand Fines and Water/Cement Ratio on Concrete ...

the sand content in concrete. The sand particles retained on the 75µm 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 ...

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The Importance of Fineness Modulus Concrete Construction ...

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 ...

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Effect of Fineness Modulus of Manufactured Sand on ...

Effect of Fineness Modulus of Manufactured Sand on Mechanical Properties of Self Compacting Concrete D. Pavan Kumar*1,C. Sashidhar2 1Reserach Scholar, Ph.D, Department of Civil Engineering, Jawaharlal Nehru Technological University, Anantapur, India

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(PDF) Effect of Fineness Modulus of Manufactured Sand on ...

International Journal of Research and Scientific Innovation (IJRSI) Volume IV, Issue VII, July 2017 ISSN 2321–2705 Effect of Fineness Modulus of Manufactured Sand on Mechanical Properties of Self Compacting Concrete D. Pavan Kumar*1,C. Sashidhar2 1 Reserach Scholar, Ph.D, Department of Civil Engineering, Jawaharlal Nehru Technological University, Anantapur, India 2 Professor, Department ...

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(PDF) Effect of fineness modulus of manufactured sand on ...

SB3 sand (FM=3.1) and SG5 sand (FM=2.2) were mixed to vary the fineness modulus from 2.2 to 3 and the compressive strengths of each corresponding mortar specimen determined after 28 days.

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Air Entrainment in Concrete: 10 Factors Concrete Technology

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.

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HOW FINE AGGREGATES AFEECTS CONCRETE MIX DESIGN

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.

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What is Fineness Modulus of Sand (Fine Aggregate) and ...

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.

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FINENESS MODULUS OF FINE AGGREGATE

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

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(PDF) Effect of fineness modulus of manufactured sand on ...

Several authors have studied the effect of fineness modulus of sand on the properties of concrete. They showed that the Fineness Modulus of sand was among the principal factors affecting the ...

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Air Entrainment in Concrete: 10 Factors Concrete Technology

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.

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fineness modulus of sand effects on air in concrete

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) ,...

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Concrete - Precast

Fineness Modulus of Sand • The fineness modulus is calculated from the particle size distribution of the fine aggregate • Values for sand suitable for concrete should range between 2.3 and 3.1 • Values can’t differ by more than 0.2 • Coarse sand has a higher FM than fine sand • The FM influences the bulk volume of coarse aggregate

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What is Fineness Modulus of Sand (Fine Aggregate) and ...

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.

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THE ROLE OF FINENESS MODULUS - Southport Concrete Co

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. If you would like to learn more about how to determine the best type of concrete for a ...

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FINENESS MODULUS OF FINE AGGREGATE

FINENESS MODULUS OF FINE AGGREGATE TXDOT DESIGNATION: TEX-402-A CONSTRUCTION DIVISION 1 – 2 LAST REVIEWED: SEPTEMBER 2014 Test Procedure for 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

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Experimental Investigation on The Effect Of M-Sand In High ...

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

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FINENESS MODULUS OF AGGREGATE – WHAT, WHY HOW ...

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.

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What Is Air-Entraining Admixture And Its Effect On Concrete

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.

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Top 9 Experiments on Concrete Technology

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 ...

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Effect of Fineness of Cement on Concrete Properties ...

Jan 06, 2018  In air-entrained concrete the effect of fineness of cement on workability is very much less pronounced. Increased Modulus of Elasticity. The 28-day compressive strength modulus of elasticity of concrete, with or without entrained air, increases with an increase in cement fineness. The difference in compressive strength due to difference in ...

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Fineness Modulus Method of Concrete Mix Design

Fineness 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, 40 mm, 20 mm, []

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Rational Mix Design Approach for High Strength Concrete ...

Due to economic effect, higher dosage of silica fume is also not advisable. Fineness modulus of fine aggregates:The 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.

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fineness modulus of sand effects on air in concrete

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) ,...

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Fineness Modulus Method of Concrete Mix Design

Fineness 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, 40 mm, 20 mm, []

More

Concrete - Precast

Fineness Modulus of Sand • The fineness modulus is calculated from the particle size distribution of the fine aggregate • Values for sand suitable for concrete should range between 2.3 and 3.1 • Values can’t differ by more than 0.2 • Coarse sand has a higher FM than fine sand • The FM influences the bulk volume of coarse aggregate

More

THE ROLE OF FINENESS MODULUS - Southport Concrete Co

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. If you would like to learn more about how to determine the best type of concrete for a ...

More

FINENESS MODULUS OF FINE AGGREGATE

FINENESS MODULUS OF FINE AGGREGATE TXDOT DESIGNATION: TEX-402-A CONSTRUCTION DIVISION 1 – 2 LAST REVIEWED: SEPTEMBER 2014 Test Procedure for 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

More

Experimental Investigation on The Effect Of M-Sand In High ...

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

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Effect of Aggregate Size Distribution on Concrete ...

The change of concrete compressive strength with variation of fineness modulus of fine aggregate is shown in Figure 7. This figure also represents that compressive strength increases with the increases of fineness modulus of fine aggregate and coarse aggregate. Coarse aggregate having fineness modulus 6.0 is not well graded according to

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Fineness modulus - Wikipedia

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.Sieves sizes are: 150-μm (No. 100), 300-μm (No. 50), 600-μm (No. 30), 1.18-mm (No. 16), 2.36-mm (No. 8), 4.75-mm (No. 4), 9.5-mm (3/8-in.), 19.0-mm (3/4-in.), 37.5-mm (11/2-in.), and larger ...

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CONCRETE MIX DESIGN Kumar Properties

Jan 03, 2019  Sand with silt content greater then 7% shall not be used for concreting. CORRECTIONS FOR CHANGES IN GRADATION OF SAND; Sand shows lot of variation in gradation, because of change in source of supply. The fineness modulus of sand in Pune varies from 3.2 to 3.8 The IS specifies a limit of 2.2 (fine sand) to 3.2 (coarse sand) for fine aggregate.

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Top 9 Experiments on Concrete Technology

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 ...

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How does the fineness modulus of aggregate affect the ...

Fineness Modulus is an indication grading of particle size. More the value of FM more coarser the aggregate is. Now because density vary with particle size, and also the void spaces inside the concrete is a function of aggregate size, it is very i...

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civil engineering mcqs with answers - concrete technology

The fineness modulus of an aggregate is roughly proportional to: A. ... The value of finencess modulus for fine sand may range between: A. 1.1 to 1.3: B. 1.3 to 1.6: C. 1.6 to 2.2: D. 2.2 to 2.6 ... causes little effect on quality of concrete: D. all of these View Answer Workspace Report Discuss in Forum. 149. ...

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Effect of coal bottom ash as partial replacement of sand ...

Two types of control concrete mixtures to develop 28 d compressive strength of 38 MPa designated as concrete ‘A’ and 34 MPa designated as concrete ‘B’ were made with river sands having different fineness of modulus. In both grades of concrete mixtures, sand was replaced with coal bottom ash at 20, 30, 40, 50, 75 and 100% levels.

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EFFECT OF ELEVATED TEMPERATURE ON HIGH

Vol-3 Issue-4 2017 IJARIIE -ISSN(O) 2395 4396 6471 ijariie 3359 EFFECT OF ELEVATED TEMPERATURE ON HIGH PERFORMANCE CONCRETE Omkar.A.Salunkhe1, Abhijeet A. Galatage2, Dr.Sumant K.Kulkarni3, 1P. G. Student ,Civil Engineering Flora Institute of Technology, Pune, Maharashtra, India 2Assistant Professor ,Civil Engineering, Flora Institute of Technology Pune,

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