determination of shape tests on aggregate

Flakiness Index Test

determination this paper describes the importance of the particle shape of aggregates in road structures and their determination especially using the flakiness index test, flakiness amp elongation test 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

Read more...

Aggregate & Concrete Testing — Timely Engineering Soil ...

This test method covers the determination of bulk density ("unit weight") of aggregate in a compacted or loose condition, and calculated voids between particles in fine, coarse, or mixed aggregates based on the same determination. This test method is applicable to aggregates not exceeding 5 in. (125 mm) in nominal maximum size.

Read more...

Characteristics of Aggregates: Shape, Size & Specific ...

The Coarse Aggregate Test (ASTM C127 and AASHTO T 85) is simply a volume determination by displacement of water. A basic test can be performed with a woven-wire basket and water container, or the complete test can be performed more efficiently using a specific gravity bench for suspended weighing of the specimen from an electronic balance.

Read more...

» Aggregate

Tests for geometrical properties of aggregates: 1.1. Determination of particle size distribution (Gradation and fines content) EVS-EN 933-1, EVS-EN ISO 17892-4. EAK. 1.2. Determination of particle shape. Flakiness index: EVS-EN 933-3. EAK. 1.3. Determination of particle shape. Shape index: EVS-EN 933-4 1.4. Determination of percentage of ...

Read more...

Shape Tests on Coarse Aggregates:

Procedure of Shape Tests on Coarse Aggregates. Sieve the sample through the IS sieves (as specified in the table). Take a minimum of 200 pieces of each fraction to be tested and weigh them. To separate the flaky materials, gauge each fraction for thickness on a thickness gauge. The width of the slot used should be of the dimensions specified in ...

Read more...

Determination of Flakiness and Elongation Index of Coarse ...

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 does not apply 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 (50+40)/2 i.e. 45 mm.

Read more...

Determination of flakiness index (FI) and shape index (SI ...

Coarse aggregates of basalt and granite were used in the study. Flakiness index (FI) and shape index (SI) were determined using two methods: in accordance with the European Standard and with the use of digital image analysis (reference method).

Read more...

Characterization of coarse aggregate angularity using ...

Physical tests include aggregate gradations (determination of size distributions), aggregate shape, and angularity, sphericity, roundness and surface texture. Rounded (as opposed to angular) aggregate particles are also a concern in the use

Read more...

Image analysis method for determining 3-D shape of coarse ...

A 3-D method for particle shape determination of coarse aggregates using image analysis, IA, is presented. It is based on the measures the axial length of all three axis of every particle in a coarse aggregate sample. Two images of the entire aggregate sample are taken, in lying and standing positions. Since the particle's intermediate axes are ...

Read more...

Flakiness Index and Elongation Index Test on Coarse Aggregates

Shape tests of aggregate 1. SHAPE TESTS OF AGGREGATE 2. Prepared by Name Roll no 1. Jessica lamichane 72046 2. Jitendra Yadav 72047 3. Kisahan ojha 72048 4. Krishna kamal sah 72049 5. Lila regmi 72050 3. IMPORTANCE OF SHAPE OF COARSE AGGREGATE The shape of aggregate particle is determined by the percentage of flaky and elongated particles ...

Read more...

Determination of composite modulus of concrete containing ...

Aggregates in this study include both aggregates and RAP aggregates, which are shown in Fig. 1.From Fig. 1, these aggregates have various shapes and sizes and are randomly distributed in concrete.The random distribution of nonuniform-graded aggregates makes the accurate modeling of aggregates in concrete very difficult.

Read more...

Standard Test Method for Index of Aggregate Particle Shape ...

aggregate in Test Method C 128, hard-finished paper towels should be used to dry the particles until no more moisture is evident on the fresh towels. NOTE 1—The standard mold procedure for the determination of the saturated surface-dry condition of fine aggregate in Test Method C 128 does not work well with these uniform size fractions. For ...

Read more...

Shape Index Caliper - Testmak Material Test Equipments

Product Code AG1030 Shape Index Caliper, Standards EN 933-4; DIN 4226; CNR No.95; NLT 354, Shape Index Caliper is used for the determination of the shape factor of aggregates. Measurement range is 200 mm and graduated with 0.05 mm increments., Testmak Material Test Equipments

Read more...

Determination of Aggregate Shape Properties Using X-ray ...

The shape of aggregate particles can significantly influence certain properties of concrete, both in its fresh and hardened states. Therefore, there is a need to be able to completely characterize the shape of aggregate particles, in three dimensions, in order to develop computational models that accurately predict properties.

Read more...

Aggregates determinations. 1B – ILT – Interlaboratory Test

Description: Determination of density (Particle density and water absorption of aggregate between 40mm and 5mm); particle shape `section 105.1: Flakiness index;; particle shape Section 105.2: Elongation index of coarse aggregate; testing aggregates Part 103: particle size distribution Section 103.1: Sieve tests; determination of particle shape.

Read more...

Size and Shape Determination of Riprap and Large-Sized ...

Aggregate imaging systems developed to date for size and shape characterization, however, have primarily focused on measurement of separated or non-overlapping aggregate particles. This research study presents an innovative approach for automated segmentation and morphological analyses of stockpile aggregate images based on deep-learning ...

Read more...

FLAKINESS AND ELONGATION INDEX OF AGGREGATE

IS 2386(Part 1):1963 Methods of Test for Aggregates of Concrete- Particle Size and Shape. Reaffirmed-Dec 2016 4. Procedure 1. A quantity of aggregate shall be taken sufficient to provide the minimum number of 200 pieces of any fraction to be tested. 2. The sample shall be sieved with the sieves specified in Table 1: Size of Aggregate

Read more...

(PDF) MATERIALS of CONSTRUCTION Lab Application -Testing ...

If the color of the test solution is darker than the standard solution, than aggregate have to be reject. 3. Determination of Particle Shape of Coarse Aggregates. Particle shape and surface texture are important for proper compaction, deformation resistance and workability.

Read more...

Flakiness Index Test of Aggregate, Shape Test on Aggregate ...

Flakiness index of aggregate test is conducted on coarse aggregates sample to estimate the shape of aggregates. For cement concrete types and base coarse and bituminous-construction, the presentence of flaky and elongated aggregate particles are considered undesirable as they may cause inherent weakness with possibility of breaking down under heavy loads.

Read more...

BS 812-1(1975) : 1975 METHODS FOR SAMPLING AND TESTING …

testing aggregates - part 105: methods for determination of particle shape - section 105.2: elongation index of coarse aggregate: bs 812-103(1985) : amd 6003 : testing aggregates - methods for determination of particle size distribution: bs 812-4(1976) : amd 4617 : testing aggregates - methods for determination of chemical properties

Read more...

Aggregates - SlideShare

Tests on aggregates a.Texture and shapes test i.e. test for shapes of aggregates: 1. round shape –usually natural aggregates 2. irregular shape- a combination of different shapes 3. angular shape- usually of crushed stone 4. flaky shape- where the thickness is less than its length and width 5. elongated- usually angular where its length is ...

Read more...

Fine Aggregate Angularity – Pavement Interactive

Because of the above issues, alternate methods to characterize fine aggregate shape, texture and angularity have been developed. NCHRP Report 555, Test Methods for Characterizing Aggregate Shape, Texture, and Angularity, compared different test methods for evaluating aggregate characteristics (Masad et al., 2007 [3]).

Read more...

Standard Test Method for Index of Aggregate Particle Shape ...

1.1 This test method covers the determination of the particle index of aggregate as an overall measure of particle shape and texture characteristics. 1.2 The values stated in …

Read more...

Lab Test on Aggregates at Site - CivilJungle

The test sample consists of aggregates sized 10.0 mm 12.5 mm. Aggregates may be dried by heating at 100-110° C for a period of 4 hours and cooled. Sieve the material through 12.5 mm and 10.0mm IS sieves. The aggregates passing through 12.5mm sieve and retained on 10.0mm sieve comprises the test …

Read more...

Flakiness Index Test for Aggregates - Civil Engineering ...

AIM OF THE EXPERIMENT: To determine the Flakiness Index of the given sample of course aggregate. CODE OF REFERENCE: • IS 2386(Part 1):1963 Methods of Test for Aggregates of Concrete- Particle Size and Shape. Reaffirmed Dec 2016 • ASTM 4791-10: Standard Test Method for Flat Particles, Elongated Particles or Flat Elongated Particles in Coarse Aggregates, […]

Read more...

IS 2386-3 (1963): Methods of test for aggregates for ...

1.1 This standard ( Part III ) covers the following tests for aggregates for concrete: a) Determination of specific gravity and water absorption, b) Determination of bulk density and voids, c) Determination of necessary adjustment for bulking of fine aggregate ( field method ), and d) Determination of surface moisture in fine aggregate (field ...

Read more...

Determination of Flakiness and Elongation Index of given ...

Angular aggregates are desirable in granular base coarse (flexible pavement) due to better interlocking and increased stability. Flaky and elongated aggregates are considered as a source of weakness. Shape tests: The particle shape of aggregate is determined by the percentage of flaky and elongated particles contained in it.

Read more...

Shape test on Coarse Aggregates - Flakiness Index and ...

Shape test on coarse aggregate – Flakiness index test. The particle shape of aggregates is determined by the percentages of flaky and elongated particles contained in it. for concrete and construction of bituminous works the presence of flaky and elongated particles are not suitable and cause failures and breaking during heavy loads.

Read more...

PROPERTIES AND TESTING OF AGGREGATES FOR PAVEMENT WORKS ...

Shape test on Aggregates Shape of aggregate is also important consideration for the construction of pavement. Aggregate should not contain flaky and elongated particles in it. If they contain this type of particles, they will affect the stability of mix. The percentage by weight of aggregates whose least dimension is less the 3/5th of its mean ...

Read more...

Shape Index Apparatus | Controls Group

Description. Used to determine the shape factor of the aggregates. Supplied complete with carrying case. Dimensions (case): 470x170x50 mm. Net weight: 500 g. Products. Code. Description. Units.

Read more...

Aggregate Impact Value Test | Impact Test Of Aggregate ...

This impact load can break aggregate into smaller pieces and which results in the failure of roads and pavements. Impact Test of Aggregate. It is the ability of aggregates that resist sudden impact or shock load on it. Also, it can be defined as the resistance of aggregate to failure by impact load is known as the Impact Test of Aggregate.

Read more...

Shape Test of Aggregates (Elongation and Flakiness Index ...

Shape Test of Aggregates (Elongation and Flakiness Index) Transportation Engineering 1Flakiness IndexElongation IndexSource:

Read more...

Flakiness and Elongation Index of Aggregate

IS 2386(Part 1):1963 Methods of Test for Aggregates of Concrete- Particle Size and Shape. Reaffirmed- Dec 2016 4. procedure. A quantity of aggregate shall be taken sufficient to provide the minimum number of 200 pieces of any fraction to be tested. The sample shall be sieved with the sieves specified in Table 1:

Read more...

TESTING AGGREGATES. PART 105: METHODS FOR …

TESTING AGGREGATES. PART 105: METHODS FOR DETERMINATION OF PARTICLES SHAPE. SECTION 105.2: ELONGATION INDEX OF COARSE AGGREGATE. This Section of BS 812 prepared under the direction of the Cement, Gypsum, Aggregates and Quarry Products Standards Policy Committee, is a revision of 7.4 of BS 812: Part 1 : 1975 which will be deleted by amendment.

Read more...

If you have any questions, please feel free to contact us.