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  • Aggregate Angularity Flakiness / Elongation Index ...

    For more information read our blog Characteristics of Aggregates: Shape, Size, and Specific Gravity.. 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.; Flakiness Elongation of Aggregates is measured ...

  • FLAKINESS AND ELONGATION INDEX OF AGGREGATE

    FLAKINESS AND ELONGATION INDEX OF AGGREGATE 1. Objective 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. Consequently, the ...

  • Flakiness and Elongation of aggregates and Concrete properties

    Dec 06, 2016  Flakiness and Elongation of aggregates and Concrete properties Published on December 6, 2016 December 6, 2016 • 27 Likes • 9 Comments

  • Flakiness Index Test - Labguider

    • BS-1241 specifies a Flakiness index not exceeding 30% irrespective of the aggregate size. • Maximum permitted Elongated index is 35, 40 or 45% for aggregate sizes 2 ½’’ – 2’’, 1 ½’’ – ¾’’ ½’’ – 3/8’’. • Both Flakiness and Elongation tests are not applicable to sizes smaller then 6.3mm i.e. ¼’’ sieve.

  • Flakiness and Elongation test of Aggregate as ... - YouTube

    Sep 09, 2017  Flakiness and Elongation test of Aggregate, Flakiness and Elongation test of Aggregate, flakiness and elongation test, flakiness and elongation test is code, flakiness and elongation test video ...

  • Flakiness and Elongation Index TEST of Coarse Aggregate ...

    Flakiness index and Elongation index are very important tests to be performed on aggregate in the laboratory. This test gives the percentage of flaky and elongate aggregate present in the total aggregate sample. Aggregate shape, size, and surface texture majorly affect the properties of freshly mixed concrete more than the properties of hardened concrete.

  • Elongation Index Test on Coarse Aggreagtes - The Constructor

    Necessity of Elongation Index TestApparatus RequiredTest ProcedureCalculationsElongation Index LimitsPresence of elongated aggregates in a mix disturbs the packing of particles and creates more space. Elongated particles have high ratio of surface area to volume which reduces the workability of concrete. If elongated particles are used for pavement base course construction, they may break down easily under heavy loads which will cause damage to the pavement. So, it is necessary to know the elongation index of given aggregate mix.在theconstructor.org上查看更多信息作者: Sadanandam Anupoju
  • Flakiness and Elongation Index of Aggregate - Gilson Co.

    Thickness Gauge (Flakiness Index) is a slotted stainless steel gauge for rapid hand trying of particles from the seven sieve fractions to determine the flakiness index. Length Gauge (Elongation Index) has six labeled openings between metal pins for measuring length of particles from each of the six sieve cuts below 50mm, for elongation index determinations.

  • Flakiness and Elongation Index of Aggregate

    Sieves required are 63, 50, 40, 31.5, 25, 20, 16, 12.5, 10 and 6.3 mm (Based on requirement and Gradation of Aggregate). Fig. 3: Thickness Gauge- For Flakiness Index: Fig. 4: Length Gauge- For Elongation Index. Length Gauge have length equal to 1.8 times the mean on of the aggregate.

  • Flakiness Elongation Index - Civil Engineering Laboratory

    Flakiness Elongation Index This method is based on the classification of aggregate particles as elongated when they have a length (greatest on) of more than 1.8 of their nominal size, this size being taken as the mean of the limiting sieve apertures used for

  • Flakiness Index Test on Aggregates for Shape

    The flakiness index of course aggregate is defined in percentage by weight of aggregate particles and least on (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.

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

    May 08, 2013  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. Equipment Apparatus Thickness gauge Sieves [63, 50, 40, 31.5, 25, []

  • determination of flakiness index test. - LinkedIn SlideShare

    Dec 18, 2017  THEORY Flakiness index Aggregate particles are classified as flaky when they have a thickness (smallest on) of less than 0.6 of their mean sieve size. The flakiness index of an aggregate sample is found by separating the flaky particles and expressing their mass as a percentage of the mass of the sample tested.

  • Flakiness Index and Elongation Index ... - The Constructor

    Thus, evaluation of shape of the particles, particularly with reference to flakiness and elongation is necessary. The Flakiness index of aggregates is the percentage by weight of particles whose least on (thickness) is less than three- fifths (0.6times) of their mean on. This test is not applicable to sizes smaller than 6.3mm.

  • How To Improve Flakiness Index On A Aggregate Crushing Plant

    how to improve flakiness index on a aggregate crushing, Aggregates from tunnel muck treatments Properties and us 22 Mar 2011, muck treated in two different plants (a mobile plant and a fixed plant), The current survey and the potential increase in underground constructions (and, jaw crusher and a magnetic separator above a conveyor belt ...

  • 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.

  • Flakiness Inde Elongation Aggregate Crushing Value - Crushing

    Flakiness Inde Elongation Aggregate Crushing Value. How to improve flakiness index on a aggregate crushing plant. Flakiness index, grain size distribution, and mechanical properties (resistance to abrasion) of the . material, shape properties will improve and micro-cracks are effectively . from aggregates that were crushed with industrial crushing plants.

  • Exp 1 Flakiness and Elongation Index - Civil Engineers PK

    Flakiness and Elongation Index EXPERIMENT NO.1: Determination of the flakiness and the elongation index for the given aggregate. sample. SCOPE SIGNIFICANCE:. This test is used to determine the particle shape of the aggregate and each

  • Flakiness Index Sieve Sets BS - Flakiness Index - Utest ...

    UTA-0410 Flakiness Index Sieve Set consists of 7 sieves. For sample preperation 6.3, 10, 14, 20, 28, 37.5, 50 and 63 mm aperture sizes test sieves should be ordered seperately. Slot Size (wxl)

  • What various tests are done for the water, fine aggregates ...

    Jul 11, 2018  TESTS ON COARCE AGGREGATES: 1. Sieve Analysis 2. Specific Gravity 3. Water Absorption Moisture Content 4. Bulk Density Voids 5. Specific Surface Surface Index 6. Flakiness Index 7. Elongation Index 8. Clay, Silt Content 9. Aggregate Crushing...

  • Lab Equipments - Flakiness Manufacturer from Ahmedabad

    Aggregate crushing value test apparatus is used for measuring resistance of an aggregate to crushing. Made of Mild Steel comprising of: Cylindrical Cell, 150mm internal dia x 130 to 140mm height, Plunger, 148mm dia x 100 to 115mm height, Base Plate, 200 to 230mm square x 6mm thickness, Tamping Rod, 16mm dia x 450 to 600mm length.

  • what do u mean by elongation flakiness of aggregate?

    ELONGATION INDEX = (wt of aggregate retained on specified gauge) / (total wt of aggregate taken) Flakiness index is the % by weight of particles whose least on is

  • Aggregate Testing Equipment - Air Entrainment Meter and ...

    In bituminous mixtures, flaky aggregates make for a harsh mix and may also crack and break up during compacting by rolling. The flakiness of aggregate is determined by measuring the thickness of individual particles. Hence we offer thickness gauge and length gauge to check flakiness and elongation index of the aggregate respectively.

  • What various tests are done for the water, fine aggregates ...

    Jul 11, 2018  TESTS ON COARCE AGGREGATES: 1. Sieve Analysis 2. Specific Gravity 3. Water Absorption Moisture Content 4. Bulk Density Voids 5. Specific Surface Surface Index 6. Flakiness Index 7. Elongation Index 8. Clay, Silt Content 9. Aggregate Crushing...

  • Lab Equipments - Flakiness Manufacturer from Ahmedabad

    Aggregate crushing value test apparatus is used for measuring resistance of an aggregate to crushing. Made of Mild Steel comprising of: Cylindrical Cell, 150mm internal dia x 130 to 140mm height, Plunger, 148mm dia x 100 to 115mm height, Base Plate, 200 to 230mm square x 6mm thickness, Tamping Rod, 16mm dia x 450 to 600mm length.

  • what do u mean by elongation flakiness of aggregate?

    ELONGATION INDEX = (wt of aggregate retained on specified gauge) / (total wt of aggregate taken) Flakiness index is the % by weight of particles whose least on is

  • Aggregate Testing Equipment - Air Entrainment Meter and ...

    In bituminous mixtures, flaky aggregates make for a harsh mix and may also crack and break up during compacting by rolling. The flakiness of aggregate is determined by measuring the thickness of individual particles. Hence we offer thickness gauge and length gauge to check flakiness and elongation index of the aggregate respectively.

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

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

  • Thickness Gauge (Flakiness Index) BS - Flakiness Index ...

    The aggregate to be classified is separated into seven sieve fractions from 6.3 to 63 mm, and each fraction is examined separately. Slot sizes are 4.9 x 30 mm, 7.2 x 40 mm, 10.2 x 50 mm, 14.4 x 60 mm, 19.7 x 80 mm, 26.3 x 90 mm and 33.9 x 100 mm.

  • Aggregate Testing Definition, Flakiness Elongation Index

    Flakiness and Elongation Index These tests are used to determine the percentage of unsuitably shaped particles for aggregate to be used in concrete. Aggregate particles are classified as flaky when they have a thickness of less than 0.6 of their mean sieve size, and are classified as elongated when they have a length of more than 1.8 of their ...

  • What is the use of flakiness index in concrete road work ...

    Aug 07, 2018  What is the use of flakiness index in concrete road work? Flakey particles are those which are generally thin compared to their major ons. Ie shaped like a flake. Such particles make poor concrete, since they are hard to compact, and e...

  • FLAKINESS AND THICKNESS GAUGE - GEOTECHNICAL

    Flakiness Gauge is used to determine if the aggregate particles are to be considered as flaky, i.e. their thickness is less than 0.6 of their nominal size. Length Gauge classifies aggregate elongation by measuring the length of individual particles. Aggregate particles are considered elongated when their length is more than 1.8 of their nominal ...

  • Flakiness sieves, Aggregates testing equipment, Controls

    Flakiness sieve 4.9x30 mm slot 47-D0415/2 Flakiness sieve 7.2x40 mm slot 47-D0415/3 Flakiness sieve 10.2x50 mm slot 47-D0415/4 Flakiness sieve 14.4x60 mm slot 47-D0415/5 Flakiness sieve 19.7x80 mm slot 47-D0415/6 Flakiness sieve 26.3x90 mm slot 47-D0415/7 Flakiness sieve 33.9x100 mm slot Complete set 47-D0415

  • 7.3. Shape Tests for Aggregates 7.3.1 Flakiness index

    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

  • How To Improve Flakiness Index On A Aggregate Crushing Plant

    This final stage in the crushing plant produces high quality aggregate for both asphalt and concrete it is essential to minimise the production of particles sized 02 mm and to produce as cubic particles as possible for all fraction sizes larger than 2 mm ,How to improve flakiness index on a aggregate crushing

  • Flakiness And Elongation Gauge - Elongation Gauge ...

    Used to determine the Elongation Gauge of the Aggregate. Aggregate particles are considered elongated when their length is more than 1.8 of the nominal size. It consists of a hard base with vertically mounted metal studs as specified in the IS.

  • Elongation Index Test - Labguider

    • BS-1241 specifies a Flakiness index not exceeding 30% irrespective of the aggregate size. • Maximum permitted Elongated index is 35, 40 or 45% for aggregate sizes 2 ½’’ – 2’’, 1 ½’’ – ¾’’ ½’’ – 3/8’’. • Both Flakiness and Elongation tests are not applicable to sizes smaller then 6.3mm i.e. ¼’’ sieve.

  • What is the use of flakiness index in concrete road work ...

    Aug 07, 2018  What is the use of flakiness index in concrete road work? Flakey particles are those which are generally thin compared to their major ons. Ie shaped like a flake. Such particles make poor concrete, since they are hard to compact, and e...

  • FLAKINESS AND THICKNESS GAUGE - GEOTECHNICAL

    Flakiness Gauge is used to determine if the aggregate particles are to be considered as flaky, i.e. their thickness is less than 0.6 of their nominal size. Length Gauge classifies aggregate elongation by measuring the length of individual particles. Aggregate particles are considered elongated when their length is more than 1.8 of their nominal ...

  • Elongation Index Test - Labguider

    • BS-1241 specifies a Flakiness index not exceeding 30% irrespective of the aggregate size. • Maximum permitted Elongated index is 35, 40 or 45% for aggregate sizes 2 ½’’ – 2’’, 1 ½’’ – ¾’’ ½’’ – 3/8’’. • Both Flakiness and Elongation tests are not applicable to sizes smaller then 6.3mm i.e. ¼’’ sieve.

  • Aggregate Lab Equipment - Aggregate Crushing Value ...

    Aggregate Lab Equipment Offering you a complete choice of products which include Aggregate Lab Equipment such as Impact Tester, Laboratory Pulveriser, Dorry Abrasion Testing Machine, Density Basket, Proctor Compaction Apparatus, Aggregate Crushing Value Apparatus and many more items.

  • Shape tests of aggregate - LinkedIn SlideShare

    Jul 27, 2018  These are the flakiness index elongation index and angularity number, 1. Flakiness index Flakiness index of aggregate is the percentage by weight of aggregate particles the least on of which is less 0.6 of their mean on. The test is applicable to sizes larger than 6.3mm. Apparatus I. Thickness gauge II. IS sieves 4.

  • Stone Crushing Machine - Aggregate crushing flakiness ...

    Exp 1 Flakiness And Elongation Index Civil Engineers PK. Determination of the flakiness and the elongation index for the given aggregate sample BS1241 specifies a Flakiness index not exceeding 30 irrespective of the aggregate size Maximum permitted Elongated index is 35 40 or 45 for aggregate

  • FLAKINESS OF AGGREGATES FOR HIGHWAY CONSTRUCTION: ITS ...

    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. Elongation index is defined similarly.

  • Flakiness And Elongation Gauge - Elongation Gauge ...

    Used to determine the Elongation Gauge of the Aggregate. Aggregate particles are considered elongated when their length is more than 1.8 of the nominal size. It consists of a hard base with vertically mounted metal studs as specified in the IS.

  • Is the 'Combined Flakiness and Elongation Index' of ...

    Flakiness index is weight of flaky stone metal divided by weight of stone sample. Only the elongated particles be separated out from the remaining (non-flakY) stone metal.

  • how to improve flakiness index on a aggregate crushing ...

    Improving cost efficiency and aggregate quality in crushing – Our crusher. 15 Jan 2004 Improving cost efficiency and aggregate quality in crushing plants.January .. Parameters' effect on B7100 End Product 4/8 Flakiness Index. »More detailed

  • CE 354 Transportation Engineering Sessional I (Lab Manual)

    checking the mechanical properties (Aggregate Impact Value, Aggregate Crushing Value, and Ten Percent Fines Value), and shape characteristics (Flakiness Index, Elongation Index and Angularity Number) of aggregates used in roadway construction. The test procedures are described as per BS: 812:1975 (PART 1, 2, 3) standards.

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

    Nov 16, 2019  Thus the evaluation of the shape of the particles, particularly concerning flakiness, elongation is necessary. Flakiness Index. The flakiness index of aggregates is the percentages by weight of particles whose least on (thickness) is less than 3/5 th (0.6) of their mean on. The test does not apply to sizes smaller than 6.3 mm.

  • INFLUENCE OF COMBINED FLAKINESS AND ELONGATION

    3. COMBINED FLAKINESS AND ELONGATION INDICES Aggregate samples were collected from crusher on different days and shape test was carried out. Based on test results they were sorted under four different percentages of Combined Flakiness and Elongation Indices 30-35%, 35-40%, 40-45% and 45-50%. 4. OPTIMUM BITUMEN CONTENT (OBC)

  • How To Improve Flakiness Index On A Aggregate Crushing Plant

    how to improve flakiness index on a aggregate crushing plant. How To Improve Flakiness Index On A Aggregate Crushing Plant. how to improve a crushing plant - sitems. how to improve flakiness index on a aggregate crushing plant, VSI crushers are often used in the last stage of crushing in order to improve the shape/flakiness index .

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