• Strength of Coarse Aggregates

    For each coarse aggregate, flakiness index and elongation index, angularity number as suggested by Shergold surface texture as suggested by Wright water absorption and moisture content as per the drying method was determined. River sand from single source and …

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  • Determining Flakiness Index - ftp.dot.state.tx.us

    determination of flakiness and elongation index of coarse aggregate as per is 2386- part 1 posted by : add comment friday, march 16, 2018. in this article we will learn about test method of flakiness and elongation index and specification for aggregate determination of flakiness index as per is 2386: part 1

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  • Aggregate Classification Devices - Humboldt Mfg

    DETERMINING FLAKINESS INDEX TXDOT DESIGNATION: TEX-224-F 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-in. …

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  • Definition of Flakiness index and Elongation index | Civil ...

    Flakiness Index is the percentage by weight of particles in it, whose least dimension (i.e. thickness) is less than three-fifths of its mean dimension. Elongation Index is the percentage by weight of particles in it, whose largest dimension (i.e. length) is greater than one and four-fifths times its mean dimension.

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  • DETERMINATION OF FLAKINESS AND ELONGATION INDEX OF …

    Aggregate Mix Designation Used in this Study (Coarse Aggregate) *geometrically cubical aggregate ** normal aggregate 3.4 Gradation Aggregate gradation is an important property that affects the performance of asphalt pavement. ... The flakiness index must be less than 25% (JKR, 2008). Specimens with a high flaky index have lower strength and

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  • LASER-BASED APPROACH FOR DETERMINING FLAKINESS INDEX …

    Flakiness Gauge for Classification of Aggregate Particles— H-1684 For determining flakiness index. Particle is flaky when its thickness (smallest dimension) …

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  • Flakiness and Elongation Index of Aggregate - YouTube

    Flakiness index and Elongation Index of Coarse Aggregates AIM: i. to determine the elongation index of the given aggregates ii. to determine the flakiness index of the given aggregates APPARATUS: The apparatus for the shape tests consists of the following: (i) A standard thickness gauge (ii) A ...

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  • ASTM D4791 - 10 Standard Test Method for Flat Particles ...

    Flakiness index and Elongation Index of Coarse Aggregates AIM: i. to determine the elongation index of the given aggregates ii. to determine the flakiness index of the given aggregates APPARATUS: The apparatus for the shape tests consists of the following: (i) A standard thickness gauge (ii) A ...

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  • Flakiness sieves, Aggregates testing equipment, Controls

    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. Rough-textured, angular, and elongated particles require more water to produce workable concrete than smooth, rounded compact aggregate.

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  • Recommended limits for aggegates - SlideShare

    Used to determine if aggregate particles are to be considered flaky, i.e. their thickness is less than 0.6 of their nominal size. Each sieve is made from heavy gauge steel.

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  • Effect of Flakiness Index on Bituminous Mixes - ijsetr.com

    D4791 - 10 Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate, aggregates, coarse aggregates, particle shape, Size/size distribution analysis, Coarse aggregate, Elongated aggregate particles, Flat aggregate particles, Particle analysis--aggregate, Sieve analysis--aggregate,

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  • Flakiness index and Elongation Index of Coarse Aggregates ...

    Determination of clay, silt, and dust in fine and coarse aggregate can be tested by sedimentation method. The aggregate is carefully mixed with water in volumometric cylinder and then let to settle . ... described by flakiness index or shape index (according EN 933-3, EN 933-4).

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  • Flakiness and Elongation Index of Coarse Aggregate

    determining flakiness index of all aggregate particles scanned. Aggregate particles originating from the same parent rock ar e usually assumed to have the same specific gravity hence the ratio by ...

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  • Flakiness and Elongation Index of Coarse Aggregate

    Flakiness index 25% max.(Relative density) Weighing in air and in water (BS Not less than 2.5 812)-1995Water absorption Weighing dry and saturated (BS Coarse Agg.sand 2.5 % max.

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  • Analysis of Aggregates By Image Processing Using Matlab

    Elongation index and flakiness index of coarse aggregate (BS 812 Part:1) ... weight of coarse aggregate is undesirable. The test is carried on aggregate sizes between 63 mm and 6.3 mm. ... of 0.1% of the sample weight. 2- A set of sieves. 3- A special scale for elongation index. 4- A special scale for flakiness index.

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  • AGGREGATE FLAKINESS INDEX VALUE (IS:2386-Part 1-1963 ...

    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].

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  • TMH1 - Method B3T - CSIR

    DETERMINING FLAKINESS INDEX TXDOT DESIGNATION: TEX-224-F 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-in. …

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  • Determining Flakiness Index - ftp.dot.state.tx.us

    For crushed aggregate, the particle shape and surface texture depend on the nature of the parent material and on the type of crusher and its reduction ratio. The flakiness index is the weight of flaky particles as a % of the sample weight.

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  • Properties of Concrete as Influenced by Shape and Texture ...

    Objective. For determination of flakiness index of coarse aggregate, where the size of the coarse aggregate are larger than 6.3mm . Reference Standards. IS : 2386 (Part I) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape.

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  • Flakiness index and Elongation Index of Coarse Aggregates ...

    Flakiness & Elongation of Aggregate Void Content measures the angularity, sphericity, and surface texture of fine and coarse aggregates. Proportional Calipers are efficient devices that quickly determine percentages of elongated and flat particles in coarse aggregate fractions.

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  • What is the significance of Flakiness Index and Elongation ...

    This British Standard, a section of the BS 812 series, describes methods for determining the flakiness index of coarse aggregate. Aggregate particles are classified as flaky when they have a thickness of less than 0.6 of their mean sieve size.

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  • Flakiness Index and Elongation Index Test on Coarse Aggregates

    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. Rough-textured, angular, and elongated particles require more water to produce workable concrete than smooth, rounded compact aggregate.

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  • FLAKINESS OF AGGREGATES FOR HIGHWAY ... - trid.trb.org

    Crushed waste rock is utilized as an aggregate in civil engineering in frost- to increase the resistance of aggregate a third impact crusher should be three stage crushing plant with impact crushers was installed in opencast Shape of coarse aggregate is determined in terms of the flakiness index.

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  • Aggregate Angularity | Flakiness / Elongation Index ...

    Aggregate is classed as coarse if D is greater than 2mm, fine if D is less than 2mm, and all-in if D is less than 45mm and d is 0. Next, the required minimum percentage passing D is given, followed (for coarse aggregates only) by the maximum percentage allowed to pass d .

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  • PROPERTIES OF GEOMETRICALLY CUBICAL AGGREGATES AND …

    Definition of Flakiness index and Elongation index. April 7, 2013 by admin 2 Comments. ... Flakiness index. ... According to BS specifications 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 %.

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  • Elongation index and flakiness index of coarse aggregate ...

    Sep 09, 2017· Please watch: "Bulk density of aggregate coarse or fine as per IS 2386, hardness test of aggregate" https:// -~-~~-~~~-~~-~- This ...

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  • Civil & Civil - AGGREGATE FLAKINESS INDEX VALUE... | Facebook

    aggregate flakiness index value (is:2386-part 1-1963) Objective For determination of flakiness index of coarse aggregate, where the size of the coarse aggregate are larger than 6.3mm .

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  • Elongation Index Test on Coarse Aggreagtes

    The Flakiness Index of a coarse aggregate is the mass of particles in that aggregate, expressed as a percentage of the total mass of that aggregate, which will pass the slot or slots of specified width for the appropriate size fraction, as given in Table I below.

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  • How To Improve Flakiness Index On A Aggregate Crushing Plant

    ii) Elongation Index = RECOMMENDED VALUE: The shape tests give only a rough idea of the relative shapes of aggregates. the strength of pavement layer would be adversely affected due to possibility of breaking under loads. flakiness and elongation indexes test. aggregate shape test in soil lab.

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  • Flakiness Index and Elongation Index of Coarse Aggregates ...

    In the flakiness test, the flaky particles are separated from each size fraction by manual gauging and their quantities measured by weighing. After weighing, the flakiness index is calculated as the ratio of the mass of flaky particles to the total mass of the aggregate sample expressed as a percentage.

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  • 14. AGGREGATES - K123-Katedra stavebních materiálů

    Interlocking of the aggregate is inversely proportional to the flakiness index or the elongation index. Surface Texture of Coarse Aggregates Surface texture of the aggregates is the property of its surface that classifies it into polished or dull, smooth or rough.

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  • Research Article EFFECT OF SHAPE AND SIZE OF …

    coarse aggregate - designation given to the larger aggregate sizes with D greater than or equal to 4 . described by flakiness index or shape index . European Aggregate Sizes - For coarse aggregates, maximum percentage of d can be 10%, 15%, 20% or 35%. .

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  • European Aggregate Sizes - northstonematerials.com

    Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than one and four-fifth 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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  • Particle shape analysis of coarse aggregate using digital ...

    Research Article EFFECT OF SHAPE AND SIZE OF AGGREGATE ON PERMEABILITY OF PERVIOUS CONCRETE ... coarse aggregate, little or no fine aggregate, admixtures, and water [1]. Combination of ... characteristics of the aggregate, flakiness index, Los Angel's abrasion value, water absorption, specific ...

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  • processor flakiness index coarse aggregate - filmzstan.in

    research, shape properties of coarse aggregates are compared using image analysis by determining the shape characteristics of aggregate such as elongation, flakiness, sieve analysis with traditional methods. ... 1.3 Flakiness Index The Flakiness Index of aggregate is the percentage by weight of particles whose least dimension is less than three ...

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  • Flakiness and Elongation test of Aggregate as per IS 2386 ...

    The Flakiness index of aggregates is the percentage by weight of particles whose least dimension (thickness) is less than three- fifths (0.6times) of their mean dimension.

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  • Classification - M&L Testing Equipment

    Apr 08, 2013· 🔴 MORNING COFFEE JAZZ & BOSSA NOVA - Music Radio 24/7- Relaxing Chill Out Music Live Stream Relax Music 1,207 watching Live now

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  • BS 812-105.1:1989 - Testing aggregates. Methods for ...

    Aggregate Classification Devices. H-4216 ... Used to determine the void content of uncompacted coarse aggregates. H-1684 Flakiness Gauge for Classification of Aggregate. For determining flakiness index of Aggregate Particles. Complies with BS 812. H-4392.XX Flakiness Sieves Set.

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processor flakiness index coarse aggregate

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