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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

Know MoreTheory of Flakiness Index and Elongation Index Tests The particle shape of aggregates is determined by the percentages of flaky and elongated particles contained in it For base course and construction of bituminous and cement concrete types, the ,

Know MoreThe test flakiness index of aggregate is not applicable to the materials passing through the 630 mm IS test sieve or retained on the 6300 mm IS test sieve while the test elongation index of aggregate is measured on particles passing through IS sieve size of 63mm and retained on IS sieve size of 63 mm

Know MoreMay 23, 2020· Aggregate shape, size, and surface texture majorly affect the properties of freshly mixed concrete more than the properties of hardened concrete Angular, flaky, rough-textured, and elongated aggregate particles require more water to produce workable concrete than the smooth, rounded compact aggregateAlso, such irregular-shaped aggregate cement content must also be increased to maintain ,

Know MoreJun 15, 2020· The flakiness index is the total weight of the material passing the various thickness gauge; expressed as a % of the weight of the total sample gauged Elongation Index of Aggregate Aim: To determine the Elongated shape of particles of Coarse Aggregate/test on coarse aggregate greater than 63 mm in size Scope:

Know MoreAggregate Testing Equipment We are manufacturing & supplying of Aggregate Testing Equipment, which includes, Cylindrical measures, Density basket, Flakiness & Elongation gauge, Aggregate impact value apparatus, Aggregate crushing value apparatus, Lab jaw crusher, Tile Abrasion Testing Machine, Loss Angeles Abrasion Testing Machine

Know MoreFlakiness Index, elongation, aggregate crushing value - Free download as Word Doc (doc / docx), PDF File (pdf), Text File (txt) or read online for free Civil Engineering , concrete, water cement ratio, aggregate crushing value , procedure and test.

Know MoreApr 07, 2013· Flakiness index The percentage by weight of flaky particles present in a given test sample Elongation index The percentage by weight of the elongated particles present in a given test sample Significance and use The particle shape of the aggregate is determined by The percentage of flaky and elongated particles that it contains Its .

Know MoreINDEX Sr No Name of Experiment Date Page Marks Sign SECTION-A –TEST ON AGGREGATES 1 Shape Test (Flakiness Index+ Elongation ) (IS:2386 part-1) 2 Aggregate Impact Test (IS:2386 part-4) 3 Aggregate Crushing Test (IS:2386 part-4) 4 Aggregate Los Angeles Abrasion Test (IS:2386 part-5)

Know MoreMar 28, 2021· Aggregate Crushing test (IS 2386(Part 4):1963 & BS 812–110:1990) Aggregate crushing test values indicates the strength of aggregate and hence it is very significant Similarly we can say crushing value is the relative measure of resistance of an aggregate under gradually applied compressive loads

Know MoreThe effect of different percentages 0 to 50% of Combined Flaky and Elongation Aggregates (CFEA) for Pavement Quality Concrete (PQC) on the compressive and flexural strength of cement concrete and .

Know Moreto 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 standard length gauge (iii) IS sieves of sizes 63, 50 40, 315, 25, 20, 16, 125,10 and 63mm (iv) A balance of capacity 5kg, readable and accurate up to 1 gm THEORY: The .

Know MoreMay 30, 2013· Improving cost efficiency and aggregate quality in crushing , – Our crusher 15 Jan 2004 , Improving cost efficiency and aggregate quality in crushing plantsJanuary , Parameters' effect on B7100 End Product 4/8 Flakiness Index »More detailed

Know MoreFlakiness and Elongation Index EXPERIMENT NO1: 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 ,

Know MoreFor 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 aggregat; Proportional Calipers are efficient devices that quickly determine percentages of elongated and flat particles in coarse aggregate fractions; Flakiness & Elongation of Aggregates is measured .

Know MoreThickness 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 the length of particles from each of the six sieve cuts below 50mm, for elongation index determinations

Know MoreMar 24, 2020· Flakiness index of aggregate sample = 1960 % Comments: As the flakiness index is less than 30%, hence aggregate is considered desirable for use Procedure for determining Elongation index of aggregate sample: Elongation index gauge Perform sieve analysis on aggregate sample using coarse sieve shaker Weigh the sample retained on each sieve

Know More111 Flakiness index 112 Elongation index 12 Wet/dry strength variation 13 Loss Angeles Abrasion Value 14 Micro Deval Coefficient 15 Degradation factor 16 10% Fines Value or Aggregate Impact Value 17 Aggregate Crushing Value 18 Secondary mineral content in basic igneous rock 19 Light particles content 20

Know MoreJul 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 dimension of which is less 06 of their mean dimension The test is applicable to sizes larger than 63mm Apparatus I Thickness gauge II IS sieves 4

Know More2 SUMMARY Flakiness index test is used to determine the particle shape of the aggregate and each particle shape being preferred under specific conditions the specification for stone for bituminous surfacing, applied to aggregate coarser than 65 mm It is expressed as the percentage by weight of particles (in a sample of more than 200) whose smallest dimension is less than 06 times the mean .

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

Know MoreIn 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 particl Hence we offer thickness gauge and length gauge to check flakiness and elongation index of the aggregate respectively

Know MoreThe Flakiness Index of aggregates is the percentage by weight of particles whose least dimension (thickness) is less than three- fifths (06times) of their mean dimension This test does not apply to sizes smaller than 63mmThe Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is .

Know MoreConcrete aggregates The requirements of AS requirements, increase strength, or alter other properties of the concrete The correct, concrete batch plant, aggregate (either by Misshapen Particle test or Flakiness Index test), The aim is to obtain, by crushing, 10% of produced fines in

Know MoreAccording to BS-1241, a flakiness index should not exceed 30% irrespective of the aggregate size Maximum permitted elongated index is 35%, 40% or 45% for aggregate size 2 1 / 2 ” – 2”, 1 1 / 2 ” - ¾” and 1 / 2 ” - ⅜” Both Flakiness index Elongation Index tests are not applicable to the materials of sizes smaller than 63 mm i .

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

Know MoreThe Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than nine-fifths (18times or 9/5 times) their mean dimension It is measured on particles passing through mesh size of 63mm.

Know MoreFlakiness & Elongation Index This method is based on the classification of aggregate particles as elongated when they have a length (greatest dimension) of more than 18 of their nominal size, this size being taken as the mean of the limiting sieve apertures used for ,

Know MoreFlakiness index shall be limited to 30% irrespective of aggregate size as per BS 1241; Both the tests Flakiness and elongation are not considered particle size below 63mm; Elongation Index The elongation index is defined as the content of elongated particles in the sample as a ,

Know Morethe aggregate crushing value Aggregate crushing value = W1 W2 100 , Figure 22:4: Flakiness gauge The elongation index of an aggregate is de ned as the percentage by weight of particles whose greatest dimension (length) is 18 times their mean dimension This test is ,

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