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Flakiness Index of aggregates used in road construction should be less than 15% and normally does not exceed 25%. RELEVANCE AND IMPORTANCE It is not desirable to use flaky particles in construction of roads especially in surface course.

MoreBS-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.

More2021-7-14 “The flakiness index of aggregate is the % by weight of the particles (aggregates) whose thickness is less than 3/5 th (0.6 times) of their mean dimension.” What is Elongation Index? “The Elongation index of aggregate is the % by weight of the particles (aggregates)

More2014-11-24 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

More2010-2-23 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. This test is not applicable to sizes smaller than 6.3mm.

More2013-5-8 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) –

More2010-9-24 The flakiness index is defined as the percentage by weight of aggregate particles whose least dimension is less than 0.6 times their mean size. Test procedure had been standardized in India (IS:2386 part-I) Figure 4: Flakiness gauge; The elongation index of an aggregate is defined as the percentage by weight of particles whose greatest ...

More2014-3-25 Elongation Index Table 1: Minimum Mass of the Test Portion Nominal Maximum Size of Aggregate Minimum Mass of Test Portion after Rejection of Undersized/Oversized particles mm kg 40 15 28 5 20 2 14 1 10 0.5 The aggregate used in this experiment was the same sample used in the flakiness index portion of this experiment, and thus it has the same ...

More2013-3-6 Elongation Index Limits For pavements either bituminous or Non-bituminous, Elongation index of coarse aggregate should not be more than 15%. Report the Elongation index in percentage rounded off to the nearest whole number. Read More: 1. Tests on Aggregates 2. Material Testing Guide

More2018-2-1 NOTE 3 - If sieving is carried out with a nest of sieves on a machine, not less than 10 rnimltes sieving will he required for each test. 2.5 Test Procedure for All-in-Aggregates, or Mixed Coarse and Fine Aggregates-The weight of sample available shall not be less than the 6.

More2014-11-24 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

More2013-5-8 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.

More2018-2-1 Determination of flakiness index, Determination of elongation index, and Determination of angularity number. 2. SIEVE ANALYSIS 2.1 Object - This method covers the procedure for determination of particle size distribution of fine, coarse and all-in-aggregates by sieving or screening. 2.2 Apparatus

MoreThe flakiness index is defined as the percentage by weight of aggregate particles whose least dimension is less than 0.6 times their mean size. Test procedure had been standardized in India (IS:2386 part-I) Figure 4: Flakiness gauge; The elongation index of an aggregate is defined as the percentage by weight of particles whose greatest ...

MoreFlakiness index. 4. Determination of particle shape. Shape index. 5. Determination of percentage of crushed and broken surfaces in coarse aggregate particles. 6. Assessment of surface characteristics. Flow coefficient of aggregates. 7. Determination of shell

More2021-6-5 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— H-1680A. Use to determine the uncompacted void content of a fine aggregate sample. Indicates the angularity, sphericality, and workability of fine aggregate in a mixture.

More2000-3-7 Often, the Flakiness Index test is applied to single-sized aggregates (i.e. an aggregate contained within a size range d/D for which D/d = 2). In this case, it is possible to calculate a formula, equivalent to Equation (7), that gives instead the approximate number of particles that should be tested.

MoreElongation Index Table 1: Minimum Mass of the Test Portion Nominal Maximum Size of Aggregate Minimum Mass of Test Portion after Rejection of Undersized/Oversized particles mm kg 40 15 28 5 20 2 14 1 10 0.5 The aggregate used in this experiment was the same sample used in the flakiness index portion of this experiment, and thus it has the same ...

More2019-2-13 of particle shape. Flakiness index BS EN 933-11 Tests for geometrical properties of aggregates. Classification test for the constituents of coarse recycled aggregate BS EN 1097-1 Tests for mechanical and physical properties of aggregates. Determination of the resistance to wear (micro-Deval)

More2019-9-19 As per the definition given in the ‘IS: 2386 (Part III) – 1963’, (Indian Standard- Methods of Test for Aggregates for Concrete – Specific Gravity, Density, Voids, Absorption and Bulking), the specific gravity of coarse aggregates is the weight of the aggregates dried to constant weight in an oven at 100°C divided by its absolute volume including the natural voids within the aggregate ...

MoreThe flakiness index is defined as the percentage by weight of aggregate particles whose least dimension is less than 0.6 times their mean size. Test procedure had been standardized in India (IS:2386 part-I) Figure 4: Flakiness gauge; The elongation index of an aggregate is defined as the percentage by weight of particles whose greatest ...

More2021-6-5 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— H-1680A. Use to determine the uncompacted void content of a fine aggregate sample. Indicates the angularity, sphericality, and workability of fine aggregate in a mixture.

MoreElongation Index Table 1: Minimum Mass of the Test Portion Nominal Maximum Size of Aggregate Minimum Mass of Test Portion after Rejection of Undersized/Oversized particles mm kg 40 15 28 5 20 2 14 1 10 0.5 The aggregate used in this experiment was the same sample used in the flakiness index portion of this experiment, and thus it has the same ...

More2014-4-14 2. Sieve the sample of coarse aggregate to be tested in accordance with test method AASHTO T 27. Reduce each size fraction larger than the 3/8 in. (9.5 mm) sieve that is present in the amount of 10% or more of the original sample in accordance with method AASHTO T 248 until approximately 100 particles are obtained. 3.

More2018-2-1 2.1.2 Crushed Stone Sand - Fine aggregate produced by crushing hard stone. 2.1.3 Crushed Grace1 Sand - line aggregate produced by crushing natural gravel. . 2.2 Coarse Aggregate -- Aggregate most of which is retained on 4*75-mm IS Sieve and containing

More2018-10-5 aggregate. Similarly, a limit of 1% acisoluble SO, should apply to 1 :4 mixtures of RCA(III):natural aggregate. ... by the flakiness index, is well within acceptable limits. The chloride content is usually low but should be checked ifthe new concrete is to contain embedded metal. The BS 882

More2019-2-13 of particle shape. Flakiness index BS EN 933-11 Tests for geometrical properties of aggregates. Classification test for the constituents of coarse recycled aggregate BS EN 1097-1 Tests for mechanical and physical properties of aggregates. Determination of the resistance to wear (micro-Deval)

More2021-6-2 The maximum allowable limit of the flaky particles in amix is 30%. If it exceeds this value then the mix is considered unsuitable for construction purpose. The flakiness index is the percentage by weight of flaky particles in a sample.

More2016-6-30 GB-1 Flakiness Index Once for each source SB-2 Aggregate Impact Value One test per source GB-2 Water absorption One test per source GB3/4 Soundness (if water absorption exceeds 2%) Once CC-12 Alkali Silica reactivity If in doubt - once CC-9 Deleterious constituents of FA/CA If in doubt, one test CC-8 Water for construction

More2019-9-19 As per the definition given in the ‘IS: 2386 (Part III) – 1963’, (Indian Standard- Methods of Test for Aggregates for Concrete – Specific Gravity, Density, Voids, Absorption and Bulking), the specific gravity of coarse aggregates is the weight of the aggregates dried to constant weight in an oven at 100°C divided by its absolute volume including the natural voids within the aggregate ...

MoreThe flakiness index is defined as the percentage by weight of aggregate particles whose least dimension is less than 0.6 times their mean size. Test procedure had been standardized in India (IS:2386 part-I) Figure 4: Flakiness gauge; The elongation index of an aggregate is defined as the percentage by weight of particles whose greatest ...

More2019-2-15 described by flakiness index or shape index (according EN 933-3, EN 933-4). 14.5.1 Flakiness Index The flakiness index (FI) is calculated as the mass of particles that pass the bar sieves with parallel slots , expressed as a percentage of the mass of the test portion. 14.5.2 Shape Index Shape index is determined only on the coarse aggregates.

More2019-2-13 of particle shape. Flakiness index BS EN 933-11 Tests for geometrical properties of aggregates. Classification test for the constituents of coarse recycled aggregate BS EN 1097-1 Tests for mechanical and physical properties of aggregates. Determination of the resistance to wear (micro-Deval)

More2021-7-15 This model predicts the flakiness index of material larger than 4mm (the flakiness index is not defined for particles less than 4mm). The particle shape is optimal for particles with the same size as the CSS. The flakiness index is higher for both larger and smaller particle sizes. An increasing average feed size results in a higher flakiness ...

More2021-6-2 The maximum allowable limit of the flaky particles in amix is 30%. If it exceeds this value then the mix is considered unsuitable for construction purpose. The flakiness index is the percentage by weight of flaky particles in a sample.

MoreConstruction material prospects of granitic and associated. BS 882 Aggregate crushing Maximum permissible limits of Flakiness and Elongation Index for These materials may be used as aggregate

More2018-10-5 aggregate. Similarly, a limit of 1% acisoluble SO, should apply to 1 :4 mixtures of RCA(III):natural aggregate. ... by the flakiness index, is well within acceptable limits. The chloride content is usually low but should be checked ifthe new concrete is to contain embedded metal. The BS 882

More2018-2-1 2.1.2 Crushed Stone Sand - Fine aggregate produced by crushing hard stone. 2.1.3 Crushed Grace1 Sand - line aggregate produced by crushing natural gravel. . 2.2 Coarse Aggregate -- Aggregate most of which is retained on 4*75-mm IS Sieve and containing

More2016-6-30 GB-1 Flakiness Index Once for each source SB-2 Aggregate Impact Value One test per source GB-2 Water absorption One test per source GB3/4 Soundness (if water absorption exceeds 2%) Once CC-12 Alkali Silica reactivity If in doubt - once CC-9 Deleterious constituents of FA/CA If in doubt, one test CC-8 Water for construction

More2021-2-14 • The aggregate shall have a quality index of AA, AB, AC, BA, BB or CA when tested according to NZS 4407: Test 3.11 Weathering Quality Index Test. CBR testing shall be undertaken at optimum moisture content and 98% of maximum dry density as determined by test using Modified compactive effort, but then soaked for four days

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