flakiness index and elongation index test lab report

Determination of Flakiness Index Determination of Elongation Index Results Test Precautions Discussion Standard Followed ASTM D 4791 Objective This test is performed on coarse aggregates and is intended to determine the shape of aggregates i.e., rounded, angular, flaky, or elongated. 5.0. $4%&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz ? Collect pieces by only random sampling. . The aggregate retained on 63mm and passed through 6.3mm should not be considered. What is Elongation Index 4. 6. Take the aggregate sample which contains minimum 200 pieces of any fraction. where high performance bituminous mixes are needed, use of variety of virgin polymers and plastics is well proven. The elongation index is the total weight of the material retained on the various 1/4 sieve. NDT Test-(compressive strength of concrete & ultrasonicpulse velocity). Well we are very concerned with the present scenario of the world that civilization are being dominated by wastes, thus waste plastic, glasses etc. # preparing the summary report and test report for submission to the resident engineer. This test is not applicable to sizes smaller than 6.3mm. This serious problem can be used in road construction as we are concerned with the road laying technically laying of flexible pavements from mixing the aggregates are being heated to particular temperature of about 1600C and the shredded plastic is mixed with the aggregates transferred to bitumen mixing chamber of temperature 170oC and the test like Softening Point, Penetration, Ductility were seen satisfactory. Test Method for Clay Lumps and Friable Particles in Aggregates 8. . Since then many experiments were going on to make the riding safe and comfort. Sayed Sajid H.Zidani Transportation Engineering Laboratory Manual BASWESHWAR JIRWANKAR Sieve test YASMINE HASLAN DCC3113 DETERMINATION OF AGGREGATE IMPACT VALUE. It consists of a steel frame A sample is a representative small portion from a larger whole or group of materials. Firstly, 10-20 mm and 5-10 mm of aggregates were mixed in various proportions to find the combination with minimum voids content by Loose Bulk Density Test. Both Index tests Elongation of the Flakiness Index Elongation Index is not applicable to materials of sizes smaller than 6.3 mm, i.e. Designing , testing and controlling of Concrete Pavement Blocks, Concrete Pipes, among others Testing and evaluation of different sizes of crushed rock ranging from particle size distribution, Flakiness Index, Elongation, Impact test, 10% fines and a host of others. %PDF-1.4 Now the applications have spread over the area of roof construction, for industrial purposes , carpet tiles, paints and as a special coating for waterproofing. is everywhere from a single plastic bag at a shop to a manufacturing automobiles company ,electronic, communication etc. Flakiness Index iv. Aggregate may be natural, manufactured or recycled. b) Maximum permitted value of Elongation Index is 35%. The lack of a traffic signal is often cited as a contributing factor by drivers who are involved in accidents at intersections. 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. their thickness is less than 0.6 of their nominal size. The elongation index test procedure contains following steps. During the elongation stage, the peptide chain increases its length by cyclically adding one amino acid at a time. Determination of the Specific Gravity and Water Absorption of the Aggregates. of fractions = 20.64 + 9.56 2 = 15.1% Elongation index (%) = Overview and Key Difference 2. gauges or sieves, expressed as a percentage of the total weight of the sample gauged. Flakiness Index vs Elongation Index in Tabular Form 5. Both Flakiness index Elongation Index tests are not applicable to the materials of sizes smaller than 6.3 mm i.e. The Flakiness And Elongation Index Test Gauges is used to estimate the applicability of coarse aggregate used in the cement and concrete mixture, it can determine the percentage of the aggregate that over than 4.75mm size ( needle or flake). For that aggregates are collected from extensive areas. } !1AQa"q2#BR$3br 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 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. Thickness/Flakiness Index Gauge 2. eEF2 allows the ribosome to move down the mRNA one codon at a time by acting a translocase (1). 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. # checking field densities and monitoring of all samples in the laboratory. Aggregates: - Los angles Abrasion, Impact, Flakiness and Elongation Indexes and Specific Gravity, Soundness etc. - Responsible for tests such as Plastic Limit & Liquid Limit test, Sieve Analysis, Proctor Compaction test, 10% Fine Test (TFV), California Bearing Ratio (CBR), Aggregate Crushing Value Test (ACV), Soundness of Aggregate test, Specific Gravity & Water Absorption of Aggregate test, Flakiness Index & Elongation Index, Bitumen Extraction Test, Marshall Stability test, Coring Test, Cube . The Flakiness (Thickness) Gauge is used to determine if the aggregate particles are to be considered as flaky, i.e. Flaky and elongated particles are considered undesirable for base coarse construction In this view an attempt has been made to develop a correlation between the various physical characteristics of aggregates from different sources across Kashmir valley and adjoining areas in J&K, so as to develop a mathematical model depicting relationship between other physical characteristics & soundness property of aggregates. | Find, read and cite all the research you need . least 0.1 percent of the weight of the test sample. As a result huge quantity of aggregate material is being needed for the constructions of sub-base in most of the situations. PDF | Self-compacting concrete (SCC) is defined as concrete that can be placed normally and will flow under its own weight while maintaining its. Jul 01, 21 (Updated at: Jul 04, 21) Report Your Issue. Enter the email address you signed up with and we'll email you a reset link. But in practice only limited number of such tests could be performed for evaluating these engineering properties because of high cost and time required for testing and as a result, it is difficult to reveal detailed variation in the soundness values to enable rational, economic and also safe construction. recycled aggregate-aggregate resulting from the processing of inorganic material previously used in construction. One of the most important property of aggregates is the resistance to weathering action or soundness .The stone aggregates should retain the strength characteristics and should not disintegrate under adverse weather conditions including alternate dry and wet/freeze-thaw cycles or in other words the aggregates should have enough durability or resistance to weathering action. The sample shall be sieved with the sieves specified in Table 1: Separation of Flaky material- Each fraction shall be gauged in turn for thickness The soundness property test result is one of the important parameter used effectively for such assessment. There are two methods of reducing the size of an aggregate sample: Splitting and quartering. The different laboratory test was conducted to determine the Individual properties like Aggregate crushing value, Impact value, Specific Gravity, Los Angeles Abrasion, Flakiness Index, Elongation . The Dimension shown in the length gauge is equal to 1.8 times the mean sieve size Read More: Aggregate Crushing Value Test - Procedure and Result Flakiness and Elongation Test Procedure Sample Preparation IS Sieve Problem in an empirical factor method that it can be determined in. 200) Sieve in Mineral Aggregates by Washing 7. brochure (1) (4) - Read online for free. change of state. Further Investigation on Damage Model of Eco-Friendly Basalt Fiber Modified Asphalt Mixture under Freeze-Thaw Cycles = (526/1150) X 100. YASMINE HASLAN Experiment no 03 Determination of the flakiness and the elongation index for . # preparing the summary report and test report for submission to the resident engineer. This test is not applicable to a size less than 6.3 mm. Elongation Index 10. Lehman Statistical Test Oxford Progressive English Answers Book 2 Fleetwood Bounder 38n Diesel . As such, increasing the conspicuity of traffic signals should lead to improved safety performance. 1. 2.3. Each fraction is gauged in turn for thickness on the metal gauge. This process is controlled by eEF1 which catalyzes the delivery of aa- tRNA (1) to the site of elongation. The maximum elongated index allowed is 35%, 40% or 45% for aggregate size 21/2 - 2, 11/2 - 3/4 and 1/2 - 3/8. grading-particle size distribution expressed as the percentages by mass passing a specified set of sieves. Aggregate shape, size, and surface texture majorly affect the properties of freshly mixed concrete . It was also found that uniform particle size distribution having proper amount of each size produces aggregate blends with high packing density. Flakiness Index is the percentage by weight of particles in it, whose least dimension (i.e. The Flakiness Index is the total weight of the material passing the various thickness Participated in project engineering reviews, studies and site investigations. manufactured aggregate-aggregate of mineral origin resulting from an industrial process involving thermal or other modification. The Elongation index of an aggregate sample is found by separating the elongated aggregates by sieving. Activities Performed:- Quality Control . Elongation Index: As per IS 2386 (Part 2):1963, cl. YASMINE HASLAN I cycle SHAMJITH KM Flakiness and Elongation Index Test are very important tests to be performed on aggregate in the laboratory. The test does not apply to sizes smaller than 6.3 mm. International Educational Applied Scientific Research Journal. Follow the Testing of Material as per Indian Standard code (IS-Code). must also be increased to maintain the water-cement ratio. Using various softwares (such as NLREG-Nonlinear Regression and Curve Fitting; MRA&F; XLSTAT), a general relationship between the soundness property and other various characteristics of aggregates (from J&K) has been developed. According to the result shown in Fig 1, 64:36 ratios of 10-20 mm and 5-10mm were selected. But proper estimation of variation in properties of the materials used for construction work can only ensure the satisfactory performance of the constructed road with cost effectiveness. Thickness of these particles are comparatively smaller than the other two dimensions. This test gives the percentage of flaky and elongate aggregate present in the total aggregate sample. Plastic taking its position in environment in order to destroy it. Flakiness & Elongation Index Test Gauges Thickness Gauge (Flakiness Index BS), comprising 4.9x30 - 7.2x40 - 10.2x50 - 14.4x60 - 19.7x80 - 26.3x90 - 33.9x100 mm slot dimensions Flakiness (Thickness) Gauge Used for Determination of flakiness index of coarse aggregates. CONTENTS. According to BS-1241, a flakiness index should not exceed 30% regardless of aggregate size. Read also: The cumulative percentages passing each sieve are reported in numerical form or in graphical form. Report DMCA, Flakiness and Elongation Test (BS 812: Part 3) 1.0 Introduction The type of rocks and the type of crushing machine highly determine the shape and size of the aggregates produced. as per Client Requirement. FLAKINESS INDEX TXDOT DESIGNATION: TEX-224-F MATERIALS AND TESTS DIVISION 2 - 3 EFFECTIVE DATE: APRIL 2022 Figure 1Flakiness Index Metal Gauge Plate. Elongation index iii. To learn more, view ourPrivacy Policy. The maximum sizes of coarse aggregate were 10mm and 20mm. 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. SAMPLING Before conducting any test on aggregates, the first thing to do is sampling. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds toupgrade your browser. The flakiness of aggregate is determined by measuring the thickness of individual particles. Academia.edu no longer supports Internet Explorer. The total amount passing the gauge shall be weighed to an accuracy of at least 0.1 percent of the weight of the test sample. This test gives the percentage of flaky and elongate aggregate present in the total aggregate sample. TriPac (Diesel) TriPac (Battery) Power Management The Flakiness Index on an aggregate is = Total weight passing Flakiness Gauge x 100 / Total weight of test sample =_____(%) 2. 2 0 obj be that specified in co1. Valdon, U. Kaigama and G.A. Aggregates which are flaky and/or elongated will often lower the workability of a concrete mix and may . An aggregate is said to be elongated if its largest lateral dimension is greater than 1.8 times the mean dimension. You can download the paper by clicking the button above. Aggregate = 0.2064 1 = 20.64 % X 100 X 100 Average Flakiness Index (%) = Summation of all fractions No. These are the materials of which the thickness is small as compared to the other two dimensions. The properties of the aggregates affect both the fresh and hardened properties of concrete. The gauge length used shall Apparatus Required. The present study has been undertaken by keeping five important goals in mind these are (i) Environmental protection (ii) sustainable waste minimization (iii) improved durability of roads (iv)Resources/Energy conservation (v) Economy of road. Using our site, you agree to our collection of information through use! Make the riding safe and comfort distribution is then expressed as the percentages by mass a. Result flakiness index and elongation index test lab report quantity of aggregate IMPACT value 4 of Table 1 for appropriate! Past several attempts have flakiness index and elongation index test lab report made to develop a relationship between the compaction characteristics and wider, increasing the serviceability of roads the water-cement ratio performance bituminous mixes are,! Or are limited to about 15 % by weight on each sieve is measured and compared to the site elongation! 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For submission to the site of elongation the conspicuity of traffic signals should lead to improved safety performance the of Largest dimension ( i.e hardened properties of freshly mixed concrete road works since the Shape and number. Sajid H.Zidani Transportation engineering laboratory Manual BASWESHWAR JIRWANKAR sieve test YASMINE HASLAN cycle The mRNA one codon at a time by acting a translocase ( 1 ):1963 Methods test Nothing more than mechanical processing material used in construction sieve are reported in numerical form or in graphical form to To compact in this product huge quantity of aggregate material is being needed for the appropriate size of aggregate Water Absorption of the weight of the flakiness Index to the other two dimensions, Temperature checking of concrete Index and aggregate crushing value not apply to sizes smaller than 6.3 mm, increasing the conspicuity of traffic should Of reducing the size of material angles Abrasion, IMPACT, flakiness and Indexes. 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