Note 1-This form is available from the Materials & Tests Division/Soils & Aggregates Section. 49 0 obj Flakiness in integration tests If an integration test is flaky, probably is because is trying to cover too many aspects that you are not controlling in the test. The Flakiness Index is the percentage, by mass, of the particles whose least dimension is less than three-fifths of the mean dimension. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 149 0 R /Group<>/Tabs/S>> . 28 0 obj endobj For sample preparation 4.5, 6.3, 8, 10, 12.5, 16, 20, 25, 31.5, 40, 50, 63, 80 and 100 mm aperture sizes test sieves should be ordered separately. The test apparatus consists of a standard thickness gauge (6.30-63. mm) is used for this test. 23 0 obj <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 142 0 R /Group<>/Tabs/S>> Aggregate form, size and surface structure Majorly influence the properties of fresh mixed concrete more . Collect pieces by only random sampling. <>stream <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 135 0 R /Group<>/Tabs/S>> Each fraction is gauged in turn for thickness on the metal gauge. endobj . nQt}MA0alSx k&^>0|>_',G! <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 85 0 R /Group<>/Tabs/S>> v[^l `D#;jp!Z>s+-g$4U%9Hr5) Model: SL-AG-012. Both Flakiness index Elongation Index tests are not applicable to the materials of sizes smaller than 6.3 mm i.e. As of May 20, 2008 the MnDOT Laboratory Manual is only available as an electronic version, see Transmittal Letter 08-01. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 159 0 R /Group<>/Tabs/S>> Tel: 0113 5116 540 Email: info@ecotechlaboratories.com 1000 & 1001 Standard Practices & Receiving and Identifying Samples (pdf), 1002 Reducing Aggregate Field Samples to Testing Size (pdf), 1003 Lab - Field Tolerance Procedure - For Bituminous, Concrete, and Grading & Base (pdf), 1204 Specific Gravity and Absorption (+4) (pdf), 1205 Specific Gravity and Absorption (-4) (pdf), 1206 Uncompacted Void Content of Fine Aggregate (FAA) (pdf), 1207 Lightweight Pieces in Aggregates (pdf), 1208 Flat and/or Elongated Particles in Coarse Aggregate (pdf), Bituminous - Grading and Base Quality Worksheet (xls), 1212 Organic Impurities in Sand for Concrete (pdf), 1215 Plastic Fines in Graded Aggregate (Sand Equiv Test) (pdf), 1216 Resistance of Abrasion of Coarse Aggregate (Micro-Deval) (pdf), 1217 Resistance of Abrasion of Fine Aggregate (Micro-Deval) (pdf), 1218 Scratch hardness of Coarse Aggregate Particles (Soft Rock) (pdf), 1224 Objectionable Material in Recycled Aggregate (pdf), 1301 Preparation of Samples for Testing (pdf), 1305 Moisture-Density Relationship (Soil & Granular) (pdf), 1307 R-Value and Expansion Pressure of Compacted Soils (pdf), 1405 Concrete Masonry Units for Manholes and Catch Basins (pdf), 1408 Culverts and Miscellaneous Cores (pdf), 1601 Preformed Joint Filler (Bituminous Type) (pdf), 1602 Preformed Joint Filler (Bituminous, Fiber & Cork) (pdf), 1607 Elastomeric Compression Joint Seal - Compression/Deflection Test (pdf), 1608 Cement Mortar Blocks for Bond Test (pdf), 1609 Bituminous Mix Blocks for Bond Test (pdf), 1701 Electrical Cable - Lay of Conductors (pdf), 1706 Glass Beads - Laboratory Retroreflectivity (pdf), 1805 Resistance to Plastic Flow (Marshall Method) (pdf), 1806 Bulk Specific Gravity (Marshall or Gyratory Method) (pdf), 1807 Maximum Specific Gravity (Rice Voids) (pdf), 1809 Bituminous Mixtures - Voids Determination (pdf), 1811 Bulk Specific Gravity (Paraffin or Parafilm) (pdf), 1812 Bituminous Mix Samples (Trial Mix Verification) (pdf), 1813 Effect of Moisture on Asphalt Paving Mixtures (Lottman) (pdf), 1815 Determination of RAP Aggregate Specific Gravity (pdf), 1816 Bulk Specific Gravity and Density of Compacted Bit Mixtures Using Automatic Vacuum Sealing System (pdf), 1820 Density of HMA Specimens by Means of the Gyratory Compactor (pdf), 1830 Interlab Comparison Procedures (pdf), 1851 Asphalt Content Determination of Bituminous Mixtures (Colorado) (pdf), 1852 Asphalt Content Determination of Bituminous Mixtures (Centrifuge) (pdf), 1853 Asphalt Content Determination of Bituminous Mixtures (Ignition) (pdf), 1854 Adjusted Asphalt Film Thickness (AFT) (pdf), 1855 Moisture Content of Hot Mix Asphalt by Oven Method (pdf), 2000 Calibration of Field Equipment (pdf), 2006 MnDOT Concrete Air Testing Unit (pdf), 2101 Rock Salt Moisture - Microwave (pdf), 2102 Rock Salt Moisture - Moisture Balance (pdf), 2106 Treated Salt - Liquid Treating Agent Content (pdf), 2107 Alternative Chemicals Sampling (pdf), 2108 Alternative Chemicals Specific Gravity (pdf), 2109 Alternative Chemicals Magnesium Chloride Content (pdf), 2110 Alternative Chemicals Calcium Chloride Content (pdf), 2111 Alternative Chemicals Solids Content (pdf). <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 165 0 R /Group<>/Tabs/S>> 4- A special scale for flakiness index. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 120 0 R /Group<>/Tabs/S>> V)gB0iW8#8w8_QQj@&A)/g>'K t;\ $FZUn(4T%)0C&Zi8bxEB;PAom?W= ce6612-concrete and highway engineering laboratory list of experiments test on fresh concrete 1. slump cone test 2. flow table 3. compaction factor 4. vee bee test test on hardened concrete 1. compressive strength - cube & cylinder . Procedure Follow these steps to determine the Flakiness Index. endobj 3. The flakiness index is used to describe the average particle shape of aggregates including those used for concrete. 10 0 obj Flakiness and Elongation Index Test are very important tests to be performed on aggregate in the laboratory. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 106 0 R /Group<>/Tabs/S>> Page | 4 APPARATUS 1. endobj 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. 31 0 obj <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 167 0 R /Group<>/Tabs/S>> % To read the penetration value, a graduated dial is attached as shown in fig.1. 2. This test gives the percentage of friable and elongated present aggregate in the total aggregate sample. This test is also sometimes referred to as a shape test of the aggregate, an aggregate flakiness test or aggregate elongation test. 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. endobj <<82b84e6872c9984cbbb05bcee7d196f3>]>> The test is not applicable to material passing 6.30 mm sieve or retained on 50 mm sieve. 2 0 obj Figure 5.7: Sample preparation for the plastic limit test Roll the upper half of the device which has a calibrated opening of 3.18 mm with the lower half plate. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 147 0 R /Group<>/Tabs/S>> endobj 2- A set of sieves. The Elongation Index on an aggregate is = Total weight retained on Elongation Gauge x 100 / Total weight of test sample =_____(%) 7. %%EOF . <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 160 0 R /Group<>/Tabs/S>> Many specifications state a maximum flakiness index test value of around 35, though lower values of 30 or even 25 are often specified where the water content of the concrete needs to be controlled for workability or strength reasons. endobj 'x` Penetration value can be read with this dial up to 0.1 mm. Shape Test Flakiness Index: The flakiness index of aggregate is the percentage of the mass of the aggregates whose least dimension is less than 0.6 times the mean dimension. The Flakiness Index test determines the percentage of flat particles in a seal coat aggregate. Flakiness index test lab report pdf . Test sieve size 63mm, 50mm, 37.5mm, 28mm, 20mm, 14mm, 10mm, 6.3mm 3. 35 0 obj No eating or drinking in the lab. 46 0 obj endobj 7 0 obj For sample preparations 6.3, 10, 14, 20, 28, 37.5, 50 and 63 mm aperture sizes test sieves . 12 0 obj Bring observation note books, lab manuals and other necessary things for the . 6 0 obj The Mean Dimension is the arithmetic mean of the smallest sieve aperture size through which the particle passes and the next smallest sieve aperture size on which the particle is retained (Note a). C " Flakiness Sieve Set. from heavy gauge steel sheet and coated with electrostatic paint.The accuracy of the slot size is better than 0.1 mm.Flakiness index sieve set consists of 7 sieves. A metal plate approximately 0.0625 inches thick with slotted openings . Angular aggregates require more paste, and are therefore less workable than rounded aggregates. 1 0 obj To determine the Elongation Index of given aggregates . 13 0 obj Most Automation Engineers would reduce most of their flaky tests by mastering the following four synchronizations (translated into automation code). 44 0 obj <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 139 0 R /Group<>/Tabs/S>> 1223.2 APPARATUS A. Thickness of gauge = 2.66 0.05 mm (0.105 0.002 in.) 933 Method for Determining Aggregate Flakiness Index 945 Dynamic Stripping Test of Asphalt Material Aggregate Mixtures 954 Open Graded Surface Course 960 Volumetric Mix Design and Verification 961 Guidelines for Superpave Gyratory Compactor Protocol 962 Guidelines for Stone Matrix Asphalt (SMA) Mix Design and Verification The elongation index is found by separating the elongation particles and expressing their mess as a percentage of the mass of sample tested. endobj BS-1241 specifies a Flakiness index not exceeding 30% irrespective of the aggregate size. E2E or Journey tests A means for detecting the potential of aggregates intended for use in concrete for undergoing alkali-silica reaction. Flakiness Index Test. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 173 0 R /Group<>/Tabs/S>> Use the material retained on any of the following . <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 612 792]/Contents 111 0 R /Group<>/Tabs/S>> 18 0 obj 25 0 obj 0000001193 00000 n 32 0 obj Laboratory Equipment Product Brochure Flakiness and Elongation Perth: 0408 034 668 Melbourne: 0428 315 502 Auckland: 64 274 738758 Sydney: 0418 381 709 Brisbane: 0419 477 715 www.pcte.co.nz www.pcte.com.au Flakiness Index Sieve Set UTA-0410 When an aggregate particle has a thickness less than 0.6m
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