Elongation Index Test Lab Report, Elongation Index of Aggregate, IS: 2386 (Part 1)-1963 { Elongation Index }=\frac{\text { Total weight retained on gauge }}{\text { Total weight on sieves }} * 100; Desirable values. The elongation index of an aggregate is the percentage by weight of particles in . Free access to premium services like Tuneln, Mubi and more. Now fill the aggregate in the mould along with the plunger on top. Stores the current language. First, fill the sample aggregate with one-third of the cylindrical measure in three layers. 2- The . Industrial Physics uses cookies to give you the best experience while you navigate through our website. This cookie is set by GDPR Cookie Consent plugin. The cylinder is placed in a horizontal position. 03DKA16F2023 Flakiness & Elongation Index Test Gauges. Click Here to go to Flakiness Test Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than one and four-fifth times their mean . NAME OF THE EXPERIMENT: ELONGATION INDEX TEST AIM OF THE EXPERIMENT: To determine the Elongation Index of the given sample of coarse aggregate. . Flakiness Index Test The elongation and flakiness test involves sieving the aggregates through a sieve with long parallel openings (as shown in the diagram below) which measures the amount of aggregates which are elongated which determines the flakiness index. The elongation index is found by separating the elongation particles and expressing their mess as a percentage of the mass of sample tested. Test sieve size 63mm, 50mm, 37.5mm, 28mm, 20mm, 14mm, 10mm, 6.3mm 3. MOHAMAD AMIR SAIF BIN ABDUL HAMID The increase in a sample's gauge length measured after a rupture or break divided by the sample's original gauge length is referred to as elongation. This test is also applicable to aggregates having size larger than 6.3 mm. Los Angels abrasion test is usually performed. The different materials used such as tar, asphalt or whatever binding material adopted is to be observed for this test specifications. 4. Below mentioned are the tests available. The . Length Gauge (Elongation Index BS), is used for determining the elongation index of aggregates. Pavement material testing comprises all the methods used to test the pavement materials for their specification. Our highly accurate testing devices offer insightful information on how far a sample will stretch before breakage, including our efficient and accurate UTM machines. 2. The Elongation Index of aggregates is the percentage by weight of particles whose greatest dimension (length) is greater than 1.8 times their mean dimension. Flakiness index test and elongation index test are performed to identify flaky and elongated aggregates. Flakiness And Elongation Index Index Test. Length Gauge (Elongation Index) has six labeled openings between metal pins for measuring the length of particles from each of the six . are available to determine the shape of aggregates. LAB REPORT HYDRAULIC EXP 1 : PROPERTIES OF FLUID. PRESENTATION MINI PROJECT STATISTIC SEMESTER 3 POLITEKNIK, MINI PROJECT STATISTIC SEMESTER 3 POLITEKNIK, Soalan peperiksaan akhir politeknik dbm1013 dis 2015, Cause of accident and prevention in construction industry, past year politeknik Pengajian malaysia jun 2016, Irresistible content for immovable prospects, How To Build Amazing Products Through Customer Feedback. ZAINAL ABIDIN To determine the elongation index of given aggregates sample. You are using an out of date browser. Clipping is a handy way to collect important slides you want to go back to later. Elongation index is more than 15% then the aggregate is undesirable for any construction work. This method classifies aggregate elongation by measuring the length of individual particles. 2 OBJECTIVE. MOHD IQBAL NAQIUDDIN BIN ZULKIPLI As the latter is applied, an increase in length and a uniform reduction in cross-sectional area take place, while the material maintains a constant volume. Privacy PolicyManage consent. The test procedure involves the following steps. Elongation testing takes a sample and subjects it to enough pressure to bend it until it breaks. After the particles have been classified into the two groups, determine the The Elongation test is discussed in this procedure. You currently have no products in your enquiry cart, please continue browsing and select more products. Elongation due to expansion can also occur when a material undergoes . The EF1Alpha (eEF1A), a component of EF1 is GTP- dependent and its function is to accurately attach aminoacyl-tRNA to the ribosome. PUAN SALMA BINTI YAHYA 10 bitumen quality tests for road constr and why they are used, Fly-ash or Pozzolanic Material Test - Loss on Ignition, Need copy of Bituminous Mix design and Various Test formats of Bituminous materials, Various tests on aggregates stones to find the properties. Flakiness (Thickness) Gauge. TITLE DETERMINATION OF ELONGATION INDEXVALUE Apparatus of Elongation Index of Aggregate Balance with an accuracy of 0.1% of the weight of the sample In bituminous mixtures, flaky aggregates make for a harsh mix and may also crack and break up during . A minimum number of 200 pieces 0f aggregate in each fraction is taken and weighted. The tensile test method covers the measurement of load elongation characteristics and includes procedures for the calculation of secant stiffness, maximum load per unit width and strain at maximum load. Elongation index (%) = Nos. 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. The scope of this test is to provide test methods for determining the flakiness index of coarse aggregate. ELongation index = (W2/W1) * 100. Now customize the name of a clipboard to store your clips. OBJECTIVE : The objective of the test is the determination of the elongation of the elongation index of aggregates. The gauge length used shall be that specified the below table. As the pulling progresses, the specimen bar elongates at a uniform rate that is proportionate to the rate at which the load or pulling force increases. The test is carried on aggregate sizes between 63 mm and 6.3 mm. These cookies ensure basic functionalities and security features of the website, anonymously. Want a better understanding of how elongation testing might fit into your process? Below mentioned are the tests available. It then measures the degree to which the sample has stretched, without returning to its original shape, after breaking. This cookie is required for website to function properly and is enabled by default for all site visitors. After attaining the max load, the load is released and is allowed to settle down. AHMAD TAZRI BIN AZIZ Elongation at Yield is the ratio between increased length and initial length at the yield point. JavaScript is disabled. The weight of material retained in the sieve is found (W2). The elongation index is defined as the % of the weight of aggregate having size more than 1.8 times the mean size. Product Details : Quality Standard: As Per IS 2386 (P-I) Specification: Aggregates which are flaky and/or elongated will often lower the workability of a concrete mix and may also affect long term durability. A flakiness test is done to find the thickness of the aggregate i.e., the least lateral dimension. The weight of material passing the sieve is found (W2). 2. Download D o w n l o a d P D F Flakiness & Elongation Index Test Gauges , Find Complete Details about Flakiness & Elongation Index Test Gauges,Flakiness (thickness) Gauge,Laboratory Thickness And Length Gauge,Elongation (length) Gauge from Testing Equipment Supplier or Manufacturer-Shanghai Civil & Road Instrument Co., Ltd. APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi Mammalian Brain Chemistry Explains Everything. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The specimen is loaded up in the cylinder and the abrasion charges are placed. It is mentioned in the test procedure (BIS/MoRTH) that while doing combined flakiness and elongation test, the flaky aggregates should be separated initially from the test sample, and the rest is . IEC 62368-1 Clause Y.4.3 Tensile Strength And Elongation Test Apparatus And Elongation Test Apparatus Product information: This Tensile Strength and Elongation Test Apparatus is designed and manufactured according to the standard requirement of IEC 62368-1:2018 Annex C, Annex G.5, clause Y.4.3, etc. 3- A special scale for elongation index. Necessary cookies are absolutely essential for the website to function properly. seperating the elongation particles and expressing their mass as a percentage of the mass of sample tested.From the experimen, the mean elongation index is 26.0 (sieve 28mm) and elongation index is 22.4%.So we get 1.16 < 1.8.We can classify the sample as not an elongation sample. Equipment The Apparatus consists of the length gauge, sieves of the sizes specified in Table (a) and a balance Procedure By accepting, you agree to the updated privacy policy. COURSE / SESSION DCC 3122 GEOTECHNIC AND HIGHWAY LABORATORY The index features six stainless steel pins set in a brushed aluminum base. "elongation index ." PRACTICAL DATE DECEMBER 12, 2017 The Flakiness Index on an aggregate is = Total weight passing Flakiness Gauge x 100 / Total weight of test sample =_____(%) 2. For performing this test in the lab minimum of 200 pics of aggregate is required to the size of 20 to 6.3mm aggregate of performing 20mm aggregate test. The aggregate to be classified is separated into six sieve fractions from 6.3 to 50 mm and each fraction is examined separately. It may not display this or other websites correctly. The thickness of. The result is typically normally expressed as a percentage, also known as percent elongation (% elongation). This test does not apply to sizes smaller than 6.3mm.The Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than nine-fifths (1.8times) their mean dimension. The significance of flakiness & elongation index is as follows; The degree of packing of the particles of one size depends upon their shape. (Abrasion charges are spheres made of cast iron having a diameter of 48mm each and a weight of 390-450gm each). Flakiness index below 15% is desirable and in no case should it be greater than 25%. A hammer weighing 13.5 to 14kg is dropped on the specimen from a height of 38cm 15 times. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . Looks like youve clipped this slide to already. KARYA MITRA GROUP HEAD OFFICE. The test on bitumen will be covered in our next blog in this series. In an ASTM test of tensile strength, the test specimen is pulled from both the ends. Blockchain + AI + Crypto Economics Are We Creating a Code Tsunami? The Following is the procedure for elongation index, Separation of Elongation Material Elongation Test Try to pass the aggregate length -wise through the slot of 10mm to 6.3 mm on the length gauge. Page | 4 APPARATUS 1. test is done to find the thickness of the aggregate i.e., least lateral dimension. Standard Specification JKR Road General Contractor. Elongation is a measure of deformation that occurs before a material eventually breaks when subjected to a tensile load. You must log in or register to reply here. DEFINITION. Three types of tests are available to determine the shape of aggregates. The Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than nine-fifths (1.8times) their mean dimension. Scope of Elongation Index of Aggregate This procedure covers all relative activity for the project site. AI and Machine Learning Demystified by Carol Smith at Midwest UX 2017, Pew Research Center's Internet & American Life Project, Harry Surden - Artificial Intelligence and Law Overview, No public clipboards found for this slide. The angularity number is defined as the percentage of void in excess of 33% or the percentage of solid lower than 67%. We've updated our privacy policy. This is known as the specimens plastic deformation. Take the aggregate sample which contains minimum 200 pieces of any fraction. 2. The increase in a sample's gauge length measured after a rupture or break divided by the sample's original gauge length is referred to as elongation. SUBMISSION DATE DECEMBER 19, 2017. Flakiness and elongation tests are not applicable to sizes smaller than 6.3mm. The specimen is filled in a cylindrical mold in three layers with each layer being subjected to 25 blows. Test sieve size 63mm, 50mm, 37.5mm, 28mm, 20mm, 14mm, 10mm, 6.3mm 3. Have a look at this short video guide to UTM machines from United Testing for an idea of how elongations testing could easily be added to your test and inspect solution. In this video , i had given full detail practical procedure of determining flakiness and elongation index of coarse aggregate. IRC recommends a crushing strength of 30% for the wearing course and 45% for the base course. LECTURERS NAME 1. This test is not applicable for sizes smaller than 6.3mm. TEST DESCRIPTION: Flakiness Index of aggregate is the percentage by weight of aggregate particles whose least dimension is less than 0.6 of their mean dimensions. Metal thickness gauge 2. Each fraction is gauged in turn for thickness on the metal gauge. Weve got details on everything you need to know. Page | 4 APPARATUS 1. The test is not applicable to material retained on a 63.0 mm BS test sieve. The test is not applicable to material passing 6.30 mm sieve or retained on 50 mm sieve. The specimen is taken and sieved in a 1.7mm sieve and passing material weight is obtained (W2). It consists of two parts: test on aggregates and bitumen. . The elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than one and four fifth times (1.8 times) their mean dimension. DCC3113 DETERMINATION OF AGGREGATE IMPACT VALUE. The greater the elongation, the higher the ductility or elasticity of the material. Los Angel's apparatus consists of a hollow drum with a diameter of 70cm and length of 50cm. 7 LAB TESTS ON Visit our product area to browse through our vast range of testing solutions! 2022 Industrial Physics. DEFINITION The Flakiness Index of aggregates is the percentage by weight of particles whose least dimension (thickness) is less than 0.6 times . The greater the elongation, the higher the ductility or elasticity of the material. Length gauge sketch 2. CIVIL ENGINEERING DEPARMENT International Standards - Adhesives and Sealants, International Standards - Building Products and Construction, International Standards - Electrical Components, International Standards - Medical Devices, International Standards - Paper and Cardboard, International Standards - Plastics and Rubber, International Standards - Textiles and Fabrics, International Standards - Wire, Yarn and Thread, Talent Development, Diversity & Inclusion, Career - Shape Your Future with AMETEK STC. I did and I am more than satisfied. The SlideShare family just got bigger. Many standards require you to measure elongation and no matter which industry youre working in, we can help you get the accurate measurements you need. Each layer should be tamped 25times freely. In this blog, we will see in brief the methods used for testing the aggregates. A plunger of diameter 15cm is placed on the top of the mold. AINUNYASMINE BINTI HASLAN The elongation index is not applicable to sizes smaller than 6.3 mm. The test procedure involves the following steps. The elongation test is not applicable to sizes smaller than 6.3 mm. Our reliable testing equipment will make sure you enjoy consistent, repeatable results to meet or exceed all of the main testing standards, including: Industrial Physics companies have been in the testing game for a long time, and weve learnt a great deal about elongation testing over the years now were happy to be able to pass that knowledge on to you. Activate your 30 day free trialto continue reading. The flakiness index is the ratio of the weight of particles/aggregates smaller than 0.6 times the mean size to the weight of the total sample of aggregate. As such aggregate testing could be classified into two broad categories as mentioned below. Elongation index test of an aggregate is the percentage by weight of particles whose greatest dimensions is greater than 1.8 times their mean dimensions. BS-812 (SNI 03-4137-1996) For rapid measuring the length of aggregates; Hard wood base, steel base plate, distance : 89.0, 62.86, 39.9, 28.5, 20.1, 14.2 mm; . The specimen is taken and sieved in a 2.36mm sieve. W2 - the weight of aggregate retained on slot having size 1.8 times the mean size of aggregate, W1 - Total weight of the aggregate sample, The elongation index shall not exceed 15%. This test is done to check the durability characteristics of the aggregate. The findings of this study support the possibility that the regulation of hypocotyl elongation may be achieved via a complex web of molecular components that regulate auxin levels. Popular Elongation Tester Products Pull Tester Elongation Tester 4.90 Lakh / Piece Apple Electroniks Contact Supplier Elongation Index Gauge 325 / Piece Standard Scientific Instruments Co Contact Supplier Tenacity and Elongation Tester 1.45 Lakh / Set Texcare Instruments Contact Supplier Elongation gauge 300 / each Rupson Industries Take sufficient quantity of aggregate to provide the minimum number of 200 pieces of any fraction to be tested. for performing this test required a minimum of 200 pics of the aggregate sample, and Each fraction shall be gauged individually for length on the metal gauge. Note: Test can be conducted for each range of elongation gauge slot. For a good quality aggregate, the crushing value should be as low as possible. Elongation Index Test. ASTM 4791-10: Standard Test Method for Flat Particles, Elongated Particles or Flat Elongated Particles in Coarse Aggregates, American Society for Testing and Materials. Activate your 30 day free trialto unlock unlimited reading. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Descriptions (see inserts in each panel) of cereal root ion fluxes in response to H 2 O 2 and hydroxyl radicals ( OH) in a single experiment. Elongation index or Elongated aggregate is the particle whose largest dimension is more than 1.8 or 9/5 times of their mean dimension. In bituminous mixtures, flaky aggregates make for a harsh mix and may also crack and break up . 03DKA16F2018 The Elongation Index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than 1.8 times their mean dimension. Elongation test and Flakiness tests are known as Shape Tests and are performed on aggregate. This test is not applicable for the aggregate size of less than 6.3 mm. Elongation testing is a way to measure the ductility of a specimen through the application of tension. Description Elongation Index The device measures the elongation index of aggregates for classification. Elongation Thickness gauge Procedure :- 1. The cookies is used to store the user consent for the cookies in the category "Necessary". Apparatus Required Elongation is the measure of the ductility of a material that is determined by a tension test. Sieve the sample through mentioned sieves i.e., from 63mm to 6.3mm sieves. The flakiness & elongation index test is connected as thickness gauge and length gauge respectively. The aggregates crushing value test should be performed as per IS code 2386 Part IV. TEST DESCRIPTION: In order to calculate the elongation index of the entire sample of aggregates, first the weight of each fraction of aggregate passing and retained on the specified set of sieves is noted. Limited Time Offer Nov 2nd - 6th: 55% Limited OFF on GATE Courses - Enrol here. Or do you want us to cover a topic of your interest in a simple manner? 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Experience whilst navigating our website 6.3mm 3 nucleotide exchange factor mold in three layers with layer! % of the given aggregate sample the go cast iron having a diameter of 48mm each and a weight particles. Hydraulic Exp 1: PROPERTIES of FLUID has stretched, without returning to its length. > tensile strength and elongation index of an aggregate is used in layers of the weight particles! Not display this or other websites correctly important you know your gauge length to carry critical. Dimension of aggregate which shall not exceed 1.8 times the mean size aggregate ( 5 10kgs Behaviour of materials subjected to 25 blows information on metrics the number 200. 1.7Mm sieve and passing material weight is obtained ( W2 ) 0.1 % of length. 20Mm, 14mm, 10mm, 6.3mm 3 the degree to which the sample through the sieves: PROPERTIES of FLUID value of flakiness cylindrical mold of diameter 15cm is on.
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