observations on determination of flakiness and elongation indices

observations on determination of flakiness and elongation indices

Flakiness And Elongation Index Index Test Construction How

Determination of the flakiness and elongation index of an aggregate sample is important for the following reasons The degree of packing or inter locking of an aggregate sample depends on the shape of the particles in the mix therefore too many flaky or elongated particles can prove an obstacle in achieving the desired packing of aggregates

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

Initial Operations DETERMINATION OF FLAKINESS AND ELONGATION INDEX FOR

DETERMINATION OF FLAKINESS AND ELONGATION INDEX FOR THE GIVEN AGGREGATE SAMPLE Apparatus 1 Set of sieves 2 Weighing balance 3 Thickness gauge 4 Length gauge Purpose The test is used to determine particle shape of an aggregate Usual shapes are 1 Rounded river gravel 2 Flaky laminated rock 3 Elongated 4 Angular crushed rock

What is the significance of Flakiness Index and Elongation Index

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

Why flakiness index test is done Explained by FAQ Blog

The Elongation Index on an aggregate is = Total weight retained on Elongation Gauge x 100 / Total weight of test sample = % What is the flakiness index The flakiness index is defined as the percentage by mass of stones in an aggregate having an ALD of less than times their average dimension

Flakiness and Elongation Index of Aggregate Gilson Co

Thickness Gauge Flakiness Index Starting at $ Length Gauge Elongation Index $ 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

Flakiness Elongation Gauges Techno Test Ug

The flakiness of aggregates is determined by measuring the thickness of individual particles Techno Test offers thickness gauge and length gauge with ISI certification mark as per IS 2386 to check flakiness index and elongation index of the aggregate respectively Thickness Gauge Length Gauge

Aggregate Shape Test to find Flakiness Index Elongation Index and

The purpose of this document is to describe the method for determining Flakiness Index Elongation Index and Angularity Number of the given sample of aggregate The particle shape of aggregate is determined by percentages of flaky and elongated particles contained in it In case of gravel it is determined by its angularity number

Flakiness and Elongation Index of Coarse Aggregate Blogger

4 Weighing of Flaky Material The total amount passing the gauge shall be weighed to an accuracy of at least percent of the weight of the test sample 5 The flakiness index is the total weight of the material passing the various thickness gauges or sieves expressed as a percentage of the total weight of the sample gauged 6

observations on determination of flakiness and elongation indices

Determination of elongation index LinkedIn SlideShare · The elongation index is found by separating the elongation particles and expressing their mess as a percentage of the mass of sample tested From the experiment the mean 14 2 sieve 10mm and elongation index is 9 18 As a conclusion the sample that we tested are flaky and elongation which is there are not suitable to use in parameter design

PDF Flakiness and Elongation Index of Aggregate

Observation And Recording Passing through IS Sieves mm Retained on IS Sieves mm Flakiness Gauge mm Weight Passing on Flakiness Gauge g Percentage Weight Passing % 63 50 50 40 40 25 25 Flakiness and Elongation Index 8 Download D o w n l o a d P D F Created Date

Flakiness and Elongation Index Test for Aggregate Expert Civil

Procedure of performing Elongation Index Test Firstly take 1000 grams of aggregate sample and weigh it w1 Arrange the sieves in a systematic manner in order to smaller size opening sieve is on the bottom side and bigger size opening sieve is on the top side Example size sieve in bottom and 63mm size sieve in top

Flakiness Elongation Test [PDF Document]

title aggregate shape test flakiness index elongation index INTRODUCTION The particle shape of aggregates is determined by the percentages of flaky and elongation

Definition of Flakiness index and Elongation index

Definition of Flakiness index and Elongation index April 7 2024 by admin 2 Comments Flaky particles The particles whose least dimension is less than times the mean size dimensions Elongated particles The particles whose greatest dimension is greater than times the mean size dimension Mean size of aggregates

Significance of Flakiness Index and Elongation Index Test of Aggregate

According 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 21/2 2 11/2 ¾ and 1/2 ⅜ Both Flakiness index Elongation Index tests are not applicable to the materials of sizes smaller than mm ¼ sieve Read also

Determination Of Indices Flakiness And Elongation Help The Engineer

DEFINITION The Flakiness Index of aggregates is the percentage by weight of particles whose least dimension thickness is less than times their mean dimension The Elongation Index of aggregates is the percentage by weight of particles whose greatest dimension length is greater than times their mean dimension APPARTUS

Flakiness Index Test for Aggregates Civil Engineering Portal

Then the flakiness index is calculated as the total weight of material passed through various thickness gauges expressed as a percentage of total weight of the sample gauged Flakiness Index = [W 2 / W 1] x 100 Where W 2 = Weight passed from x d mean size W 1 = Total weight of aggregates

Why flakiness and elongation test is done

Flakiness and Elongation Index Test 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 What is flakiness and elongation test Flakiness Index is the percentage by weight of particles in it whose least dimension

PDF Flakiness Test Apparatus And Aim

may 28th 2024 observations on determination of flakiness and aim to determine the flakiness index of a given test and flakiness and elongation indices test Exp 1 Flakiness and Elongation Index Civil Engineers PK June 20th 2024 Determination of the flakiness and elongation index for the given aggregate Transportation

Determination of Flakiness Elongation ELE International

Determination of Flakiness and Elongation Determination of the Shape Index Elongation Index Flakiness Sieves and Gauges Grid Sieves Aggregates which are flaky and/or elongated will often lower the workability of a concrete mix and may also affect long term durability In bituminous mixtures flaky aggregate makes for a harsh mix and may

Experiment no 03 Determination of the flakiness and the elongation

Experiment no 03 Determination of the flakiness and the elongation index for the given aggregate sample Jun 21 2024 • 0 likes • 315 views Download Now Download to read offline Engineering This test is used to determine the particle shape of the aggregate and each particle shape Sayed Sajid Follow Advertisement Recommended

What is the Difference Between Flakiness Index and Elongation Index

The key difference between flakiness index and elongation index is that flakiness index determines the concentration of flaky particles in a sample whereas elongation index determines the concentration of elongated particles in a Flakiness index and elongation index are two important types of indices useful in determining the concentration of a given sample by means of the particles

Flakiness and Elongation Index ASTM

EXPERIMENT # 1 Determination of Flakiness and Elongation Index for the given aggregate sample Designation ASTM D4791 99 Scope significance To determine the particle shape of the aggregate and each particle shape being preferred under specific conditions The degree of packing of the particles of one size depends upon their shape Due to high surface area to volume ratio the flaky and

Determination of Flakiness Elongation ELE International

Determination of the Shape Index Elongation Index Flakiness Sieves and Gauges Grid Sieves Aggregates which are flaky and/or elongated will often lower the workability of a concrete mix and may also affect long term durability In bituminous mixtures flaky aggregate makes for a harsh mix and may also crack and break up during compaction by rolling

Flakiness Index and Elongation Index Test on Coarse Aggregate Shape

Calculations and Observations Formula for flakiness index of aggregate Where X = The weight of material passing through the various thickness gauges and W = The weight of aggregate passing and retained on the specified sieves Formula for elongation index of aggregate Where Y = The weight of materials retained on specified length gauges and

What is the solution if the flakiness and elongation index Quora

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

PDF Flakiness And Elongation Test For Aggregates

May 11th 2024 Flakiness and Elongation Flakiness Index 28 37 5 50 and 63 mm aperture sizes test sieves should be is used to measure the elongation index of aggregates Definition of Flakiness index and Elongation index Civil

Determination of Flakiness and Elongation Index of Coarse Aggregates

The flakiness index of aggregates is the percentages by weight of particles whose least dimension thickness is less than 3/5 th of their mean dimension The test does not apply to sizes smaller than 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 45 mm

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Determination of General and Geometric Properties of Aggregates Large Capacity Sample Splitter Sample Splitters Riffle Box Jaws Crusher Flakiness Sieve Series in Bs Standards Grid Sieve Set Flakiness Index Sieve Set EN Thickness Gauge Flakiness Index BS Length Gauge Elongation Index Shape Index Caliper Sand Equivalent Test Set

Flakiness and Elongation Index of Aggregate

FLAKINESS AND ELONGATION INDEX OF AGGREGATE AIM OF THE EXPERIMENT To determine the Flakiness Index of the given sample of course aggregate 1 Objective Particle form and surface texture greatly influence the properties of freshly mixed concrete Characteristics of hardened concrete

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