### LASERBASED APPROACH FOR DETERMINING FLAKINESS

LASERBASED APPROACH FOR DETERMINING FLAKINESS INDEX OF AGGREGATES USED IN PAVEMENTS J ANOCHIEBOATENG, J KOMBA and J O''CONNELL to compute flakiness index of the aggregate samples. The computed flakiness indices the standard test method used for the determination of flakiness index of coarse aggregates is contained in TMH1 Method B3

Get price### Flakiness Index Test on Aggregates for Shape

The flakiness index of course aggregate is defined in percentage by weight of aggregate particles and least dimension (thickness) of those particles should not be less than 0.6 times their mean area. Flakiness index test is not applicable for aggregates sizes smaller than 6.3mm.

Get price### Elongation Index Test on Coarse Aggreagtes

Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than one and fourfifth times (1.8 times or 9/5 times) their mean dimension. It is measured on particles passing through mesh size of 63mm and retained on mesh size of 6.3mm

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INDIANA DEPARTMENT OF TRANSPORTATION OFFICE OF MATERIALS MANAGEMENT. FLAKINESS INDEX OF AGGREGATES ITM No. 22418. 1.0 SCOPE. 1.1 This test method describes a procedure to determine the Flakiness Index (FI) of aggregates. The FI is used as a design input to determine the rate of appliion of aggregate and asphalt material for seal coats.

Get price### Elongation Index Test on Coarse Aggreagtes

Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than one and fourfifth times (1.8 times or 9/5 times) their mean dimension. It is measured on particles passing through mesh size of 63mm and retained on mesh size of 6.3mm

Get price### Flakiness Index and Elongation Index Test on Coarse Aggregates

b) Flakiness index c) Sieve analysis obtained from this test. A data sheet is given as Form 7.3.1. 7.3.2 Elongation index 7.3.2.1 Scope. The scope of this test is to provide test methods for determining the elongation index of coarse aggregate. An aggregate is classified as being elongated if it has a

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Asphaltic concrete materials and crumb rubber (CR) were characterized by carrying out particle size distribution, specific gravity, flakiness index, aggregate crushing value, and adsorption tests on the aggregates. Penetration, softening point, and flash point tests were also carried out on bitumen.

Get price### What is the use of the elongation and flakiness index? Quora

Dec 24, 2018 · The particle shape of aggregate is determined by the percentages of flaky and elongated particles contained in it. In case of gravel it is determined by its Angularity Number. Aggregates which are Flaky and elongated are detrimental to the higher

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Flakiness Index Sieve Set UTA0410 When an aggregate particle has a thickness less than 0.6m of its mean sieve size, it is considered flaky. The aggregate to be classified is separated into seven sieve fractions from 6.3 to 63 mm and each fraction is examined

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Apr 08, 2013 · How to Pour a Concrete SandWash Finished Driveway and Wooden Stamped Concrete Patio Part 2 Duration: 20:52. Odell Complete Concrete Recommended for you

Get price### LASERBASED APPROACH FOR DETERMINING FLAKINESS

LASERBASED APPROACH FOR DETERMINING FLAKINESS INDEX OF AGGREGATES USED IN PAVEMENTS J ANOCHIEBOATENG, J KOMBA and J O''CONNELL to compute flakiness index of the aggregate samples. The computed flakiness indices the standard test method used for the determination of flakiness index of coarse aggregates is contained in TMH1 Method B3

Get price### Flakiness and Elongation Index of Aggregate Gilson Co.

Flakiness & Elongation of Aggregate Determinations for the flakiness index and flakiness and elongation of aggregate use a British Standard classifiion system consisting of a Thickness Gauge for determining flakiness index and a metal Length Gauge for determining elongation index. Aggregate is separated into seven sieve fractions from 63

Get price### Flakiness sieves, Aggregates testing equipment, Controls

Flakiness sieves: Controls aggregates testing equipment. Enter now! Used to determine if aggregate particles are to be considered flaky, i.e. their thickness is less than 0.6 of their nominal size. 15 kg complete set To evaluete the thickness and the elongation index of the aggregates particles, thickness gauge code 47D0540 and length

Get price### Effect of Flakiness Index on Bituminous Mixes

Effect of Flakiness Index on Bituminous Mixes SUREN MUHAMMAD SALIH 1 M.Tech, Dept of Transportation Engineering, JNTU College of Physical shape of coarse aggregate is a very important property in performance of the bituminous mixes in the highway pavements [1].

Get price### Determination of Flakiness and Elongation Index of Coarse

Flakiness Index. The flakiness index of aggregates is the percentages by weight of particles whose least dimension (thickness) is less than 3/5 th (0.6) of their mean dimension. The test is not applicable to sizes smaller than 6.3 mm. [For example, the mean sieve size for an aggregate piece passing through 50 mm and retained on 40 mm sieve is

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More flaky the aggregate, the density decreases. Means compaction of aggregates is less and voids are more. So more fines are required to take up this voids. Flaky aggregates have more area. In both cases more cementation material is required to b

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Evaluation – Coarse Aggregate • Test methods in AS 1141 – Particle density – Particle size distribution – Particle shape – Flakiness Index – Aggregate Crushing Value – Wetdry Strength Variation – Los Angeles Abrasion Loss – Sodium Sulphate Soundness – Polished Aggregate Friction Value

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Flakiness index how to improve flakiness index on a aggregate crushing plant processor flakiness index coarse aggregate flackiness index of vsi crusher flackiness of vsi crusher crusher role in flackiness of aggregate this makes the impact crus. morethere will France Crusher Aggregate

Get price### Aggregate Classifiion & Test on Aggregate Civil

Testing of Coarse Aggregate. A. Shape and Size Test : The shape and size of aggregates can be determined by flakiness index and elongation index tests. Flakiness Index Test. Flakiness index is defined as the ratio of weight of aggregates whose least dimension is less than 0.6 times of their mean dimension to the weight of the sample taken.

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Dec 12, 2017· Flakiness and Elongation Index of Coarse Aggregate Particle shape and surface texture influence the properties of freshly mixed concrete more than the properties of hardened concrete. Roughtextured, angular, and elongated particles require more water to produce workable concrete than smooth, rounded compact aggregate.

Get price### Specifiions for Flakiness & Elongation Indices

mentions that coarse aggregate shall not contain pieces of disintegrated stones, soft, flaky, elongated particles etc. But, the limits for the same are not mentioned therein. d) MORT&H and NPC specifiions limit Flakiness index and Elongation index to 15% each. «

Get price### Aggregates

Evaluation – Coarse Aggregate • Test methods in AS 1141 – Particle density – Particle size distribution – Particle shape – Flakiness Index – Aggregate Crushing Value – Wetdry Strength Variation – Los Angeles Abrasion Loss – Sodium Sulphate Soundness – Polished Aggregate Friction Value

Get price### Specifiions for Flakiness & Elongation Indices

mentions that coarse aggregate shall not contain pieces of disintegrated stones, soft, flaky, elongated particles etc. But, the limits for the same are not mentioned therein. d) MORT&H and NPC specifiions limit Flakiness index and Elongation index to 15% each. «

Get price### Aggregate Classifiion & Test on Aggregate Civil

Testing of Coarse Aggregate. A. Shape and Size Test : The shape and size of aggregates can be determined by flakiness index and elongation index tests. Flakiness Index Test. Flakiness index is defined as the ratio of weight of aggregates whose least dimension is less than 0.6 times of their mean dimension to the weight of the sample taken.

Get price### Determining Flakiness Index ftp.dot.state.tx.us

DETERMINING FLAKINESS INDEX TXDOT DESIGNATION: TEX224F CONSTRUCTION DIVISION 2 – 2 EFFECTIVE DATE: AUGUST 2016 3.3 Allow the sample to cool to room temperature. Quarter the aggregate sample to obtain a minimum of 200 particles passing the 7/8

Get price### Definition of Flakiness index and Elongation index Civil

Apr 07, 2013 · Definition of Flakiness index and Elongation index. April 7, 2013 by admin 2 Comments. Flakiness index. According to BS specifiions flakiness index of the aggregate used for the road construction should not be greater than 35 % and Elongation index should not be greater than 45 %.

Get price### Does the flakiness of aggregate affect the strength of

More flaky the aggregate, the density decreases. Means compaction of aggregates is less and voids are more. So more fines are required to take up this voids. Flaky aggregates have more area. In both cases more cementation material is required to b

Get price### Elongation Index for Classifiion of Aggregate Particles

The mass of all flaky particles (passing appropriate slots) as percent of the sample is the flakiness index. Meets BS 812. Void Content Apparatus, Fine Aggregates— H1680A. Use to determine the uncompacted void content of a fine aggregate sample. Indies the angularity, sphericality, and workability of fine aggregate in a mixture.

Get price### Flakiness and Elongation Test (BS 812: Part 3) seperti

Mar 03, 2012 · Elongation value is 0% because the aggregate is rounded so no any retain value. Aggregate quality for road construction will also influence the road performance. The flakiness and elongation rocks are not suitable for road construction because this type of rocks will make the road surface not balance and easy to damage.

Get price### Tex224F, Determining Flakiness Index

Chapter 2 – Bituminous Tex224F, Determining Flakiness Index Manual of Testing Procedures 1 8/99 – 10/04 Tex224F, Determining Flakiness Index Overview Effective date: August 1999 to October 2004. This procedure discusses how to determine the number of flat or elongated particles in a coarse aggregate material. Apparatus

Get price### Elongation Index Test on Coarse Aggreagtes

Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than one and fourfifth times (1.8 times or 9/5 times) their mean dimension. It is measured on particles passing through mesh size of 63mm and retained on mesh size of 6.3mm

Get price### What is the use of the elongation and flakiness index? Quora

Dec 24, 2018 · The particle shape of aggregate is determined by the percentages of flaky and elongated particles contained in it. In case of gravel it is determined by its Angularity Number. Aggregates which are Flaky and elongated are detrimental to the higher

Get price### Flakiness and Elongation Index of Aggregate YouTube

Apr 08, 2013 · How to Pour a Concrete SandWash Finished Driveway and Wooden Stamped Concrete Patio Part 2 Duration: 20:52. Odell Complete Concrete Recommended for you

Get price### Elongation index and flakiness index of coarse aggregate

Elongation index and flakiness index of coarse aggregate (BS 812 Part:1) Scope: The particle is considered as elongated if its length is more than 1.8 times the mean sieve size of the size fraction to which the particle belongs. Similarly, the particle is considered as flaky if its thickness is less than 0.6

Get price### INVESTIGATION OF THE EFFECT OF ELONGATION AND FLAKINESS

Elongation and flakiness index of coarse aggregate (with 0%, 5%, 10%, 15%, 20 % and 25%) and impurity of fine aggregate (with 0%, 2%, 4%, 6%, 8 % and 10%) were adjusted while the amount of stone, sand, cement and water weer kept unchange. Subsequently slump index and compressive strength of concrete were determined.

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Sep 05, 2018 · In this video, i had given full detail practical procedure of determining flakiness and elongation index of coarse aggregate.

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processor flakiness index coarse aggregate ISO/DIS 19595(en), Natural aggregates for concrete. This standard specifies a method for determining the flakiness index of coarse aggregate that passes a sieve of aperture size 75 mm and that is retained on a sieve Get Price .

Get price### 7 Lab Tests on Aggregates to Make Better Concrete for

Take an aggregate sample of around 200 pieces of any fraction and weight it. Gauge each aggregate on length as well as thickness gauge. Take the weight of the aggregates which are retained from length gauge to find the elongation index and take the weight of the aggregates which passes through the thickness gauge to find the flakiness index.

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