The weight of aggregate specimens in the mould is recorded. Method of Test for Determining Rutting Susceptibility . Aggregate Imaging System for Characterizing the Shape of Fine and Coarse Aggregates. The following is a brief summary of the ASTM test. On a sample of known gradation, the loose uncompacted void content is indicative of the relative angularity and surface texture of the sample. representations and warranties and prevails over any conflicting or additional terms of any This property of the aggregate is measured with a standard Fine Aggregate Angularity (FAA) test. Users individually and may not be transferred to, or extended to, others. NCHRP Report 555. North Dakota T 304.Produced in cooperation with the Upper Great Plains Transportation Institute at NDSU to the print or online version. . After the funnel empties, strike off excess heaped fine aggregate from the cylindrical measure by a single pass of the spatula with the width of the blade vertical using the straight part of its edge in light contact with the top of the measure (Figure 11 and Video 1). Uncompacted void content provides an indication of angularity, sphericity, and surface texture for an aggregate of known gradation. These efforts have proved quite successful, however reliable standard laboratory tests are still under development. Fine aggregate angularity is defined as the percent air voids present in loosely compacted aggregates smaller than 2.36 millimeter. This Agreement shall be interpreted and construed in accordance with the laws of the Chowdhury et al. 2) Volume of water added is approximately equal to the volume of voids in the compacted aggregate. or non-infringement are disclaimed, except to the extent that these disclaimers are held to be The retained coarse sample is washed to remove any remaining fine material and then dried. Fine Aggregate Angularity (AASHTO T 304, Method A) 1 to 2. Termination. This test is performed to obtain a measurement of the void content of a fine aggregate sample.This video has been provided courtesy of the North Dakota Department of Transportation with permission for viewing on TC3s YouTube channel. Fine Aggregate Angularity Test Fine Aggregate Angularity Test AIM The fine aggregate angularity test determines the loose uncompacted void content of a fine aggregate material. The bottom of the measure has a recess to fit a locating pin on the Funnel Stand to ensure precision and repeatability. for individual Sieve Analysis Test Report (T27, T11, T255) T304. Masad, E.; Al-Rousan, T.; Button, J.; Little, D. and Tutmuluer, E. (2007). Document. warranties, including any implied warranty of merchantability, fitness for a particular purpose administered from the Authorized Site, but not persons at remote sites or campuses with separate 5 to 8. Description of Angularity Number Test for Coarse Aggregate:- First the metal mould calibrated by filling it with water and determining the weight of water in it. By downloading the ASTM Document you are entering into a contract, and acknowledge that This video demonstrates Method A of the uncompacted void content of fine aggregate test, which is commonly referred to as the Fine Aggregate Angularity Test, or FFA Test. You may not remove or obscure the copyright notice or other notices contained in the ASTM All rights reserved. Designed by:,Category:Excel,File format:XLSX,File Size:0.03M,Upload Time:2018-07-02 Void Content Apparatus / Fine Aggregate Angularity $ 110.00 Item #: VC-9102 Qty USA and Canada Prices Only. IMPORTANT-READ THESE TERMS CAREFULLY BEFORE DOWNLOADING THIS DOCUMENT. Site, online access to ASTM's journal for which the Subscriber maintains a current Obtain an aggregate sample by separating individual sizes from the No. These documents are copyrighted by ASTM International, 100 Barr Harbor Drive,PO Box C700, West Use mass to calculate percent fractured particles unless percentage by particle count is specified. When measured on any aggregate of a known grading, void content provides an indication of that aggregate's angularity, sphericity, and surface texture compared with other fine aggregates tested in the same grading. By downloading the ASTM Document you are entering into a contract, and acknowledge that Therefore, the higher the measured uncompacted void content, the more angular the material. Unified imaging approach for measuring aggregate angularity and texture. Remove the finger from the opening and allow the sample to fall freely into the cylindrical measure (Figure 10 and Video 1). (2000). The 9102 and 9102-DJM Fine Aggregate Angularity Apparatus determines uncompacted void content, and indicates the angularity, sphericity, and workability of fine aggregate materials. Fine aggregate angularity (FAA) has been identified specifically a factor in determining asphalt pavement rutting susceptibility [4]. APPARATUS Cylindrical Measure, Funnel (Pycnometer Top), Funnel Stand, Square Glass Plate, Pan, Metal Spatula, Balance PROCEDURE (METHOD A) For reprints of a For a This is an indirect method for estimating fine aggregate angularity and texture. Figure 1: Fine aggregate angularity test. Test No. Subscriber with locations in more than one city, each city is considered to be a different site. unauthorized use(s) of your password, or any known or suspected breach of security, including 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]). This results in a 190 g sample. fine aggregate for use as a measure of its angularity and texture. LoginAsk is here to help you access What Is Fine Aggregate quickly and handle each specific case you encounter. The FAA test estimates fine aggregate angularity by measuring the loose uncompacted void content of a fine aggregate sample. 1993 AASHTO Flexible Pavement Structural Design, 1993 AASHTO Rigid Pavement Structural Design, http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_555.pdf, Climate Change Impacts on Pavements and Resilience, E-Construction in Practice: A Peer Exchange with WSDOT and TxDOT, AASHTO T 304 or ASTM C 1252: Uncompacted Void Content of Fine Aggregate. 6 to 19. The higher values are specified for layers near the surface and for higher traffic levels. Thoroughly mix the sample and reduce the sample to the required size in accordance with AASHTO T 248 (Reducing Field samples of Aggregates to Test Size). It is a punch shear test that indirectly measures the shape and angularity of fine aggregates. from publication: A comparative assessment of the physical and microstructural properties of waste garnet . User means 2. Base on the weight of the aggregate in the cylinder and a known aggregate specific gravity, the volume of voids as a percentage of total volume can be calculated. If test records determine that aggregate gradation or cleanness value is close to specification limit or outside the specification limits, sample and . Masad, E.; Button, J.W. without 4 (4.75 mm) sieve. Fine aggregate angularity had significant impact on MTD while little on BPN . Reference Documents 1. ASTM will engage an independent consultant, subject to a confidentiality agreement, to review By invoking this procedure, Authorized JavaScript seems to be disabled in your browser. All Rights Reserved. All rights reserved. Please be aware that carriers will not deliver packages to Post Office Boxes. Masad, E.; Button, J.W. This method measures the uncompacted void content of the minus No. An uncompacted void content (fine aggregate angularity) test is performed on a sample of fine aggregate with a bulk specific gravity of 2.647. Level the material in the funnel with the spatula. Proportional calipers determine percentages of flat and elongated particles in coarse aggregate samples. You may terminate this Agreement at any time by Method B is more time consuming and requires a larger initial sample, but provides additional information concerning the shape and texture characteristics of individual sizes. This is not a sale; all right, title and interest in the ASTM Document (in both electronic file Aggregate Imaging System for Characterizing the Shape of Fine and Coarse Aggregates. Avoid vibration or any disturbance that could cause compaction of the fine aggregate in the cylindrical measure. This Agreement is effective until terminated. Anyone viewing this video should refer to their agency specifications and requirements, which they need to review and follow.For more information on available online training for technical staff in the areas of construction, maintenance, and materials, visit the AASHTO Store. city; however, employees of a branch campus or facility in another city are not considered to be Determination of. ASTM International grants to the Subscriber and Authorized Volume of cylinder = 100ml, 46.5 kg of fine aggregate is mixed with 72.3 kg of coarse aggregate. We will re-quote it to our customer.Thanks and regards.JuliusP.T. subscription Methods A and B are generally specified when trying to compare the angularity of different fine aggregate sources to remove the effect of gradation. The properties of coarse and fine aggregates used in hot-mix asphalt (HMA) and hydraulic cement concrete and unbound base and subbase layers are very important to the performance of the pavement system in which they are used. These efforts have proved quite successful, however reliable standard laboratory tests are still under development. Brush adhering grains away from the lip and. CAA angularity as measured by fractured face percentage can range from 0 percent (e.g., smooth river rock) to 100 percent (e.g., some mechanically crushed rock). property by any other means permitted by law. ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959 USA, Up to $50.00, $50.01 to $100.00, $100.01 to $150.00, $150.01 to $250.00, $250.01 to $500.00, $500.01 to $750.00, $750.01 to $1000.00, $1000.01 to $1500.00, $1500.01 to $2500.00, $2500.01 to $4999.00, $5000.00 to $higher. (Summer 2000). Fine Aggregate Specific Gravity Apparatus Procedure 1. 03_Agg_TOC Aggregate-i Pub. Study with Quizlet and memorize flashcards containing terms like Fine aggregate angularity test; density of sand =2.80 g/cc, weight of sand =250g, calculate volume or % air in the cylinder after free fall. All rights reserved. Aggregate Test Pdf will sometimes glitch and take you a long time to try different solutions. Uncompacted void content is calculated as the difference between the volume of the cylindrical measure and the absolute volume of the fine aggregate collected in the measure expressed as a percentage of the volume of the measure. Gilson offers two models for this popular test. 2. . Reproduction of any portion of an AASHTO test method in any format is strictly prohibited without written permission from AASHTO. Haddock, J. and hard copy) belong to ASTM. test, determine: 1) the uncompacted void content (%) of the sample and 2) check if the sample is suitable for a high traffic pavement: Volume of cylinder, V (ml=cm3): 100 Sample weight, Ws (g): 156 Dry bulk specific gravity, BSGdry: 2.60 Uncompacted . Copyright 1996 - 2022 ASTM. This procedure is primarily conducted on aggregates for use in HMA production. 3) Now, empty the cylinder and add measured quantity of water in it. Each size is tested separately (Figure 4). Table 1: Superpave Mix Design Flat and Elongated Particle Specification, Table 2: Superpave Mix Design Uncompacted Void Content of Fine Aggregate Specification by Design ESALs. and Papagiannakis, T. (2000). Determine the specific gravity of the aggregate. SG-40A features a strike-off guide for the exact alignment of the spatula blade to the top of the Cylindrical Measure. The FAA test has been adopted as a Superpave consensus aggregate requirement. Passwords. administrations. The store will not work correctly in the case when cookies are disabled. The high-tech fine aggregate angularity test from Alibaba.com bolster accuracy. The right to download an electronic file of this ASTM Document for temporary storage on one Determination of Coarse Aggregate Surface Texture Using Image Analysis. This method uses a sample of a specified gradation that is obtained by combining individual sieve size fractions from a typical fine aggregate sieve analysis (Figure 3). The Superpave criteria for FAA were developed based on the consensus of a . See Figure 8 for a visualization of this projected area idea. read Wash the sample over a sieve chosen to retain an appropriate coarse particle size. The fine aggregate angularity (FAA) test (Figure 1) is an indirect method of assessing the angularity of fine aggregate. Masad, E and Button, J.W. Conshohocken, PA 19428, phone: 610-832-9555; fax: 610-832-9585; e-mail: The complete test procedure can be found in: An aggregate sample is selected, dried, and then the coarse part of the sample is selected by sieving over an appropriate sieve. the ASTM Document. access the journals other than by authorized Users. Higher voids means more fractured faces as rounded aggregates rearrange and less voids will be present. A . This method uses each of three fine aggregate size factions. Angularity of the fine aggregates was measured using Superpave fine aggregate angularity (FAA), direct shear test, compacted aggregate resistance (CAR), and VDG-40 videograder. Superpave Aggregate. Download scientific diagram | Fine Aggregate Angularity test set-up with AG spent garnet. the theory of liability, arising out of or related to the use or downloading of the ASTM Angular materials are desirable in paving mixtures because they tend to lock together and resist deformation after initial compaction, whereas rounded materials may not produce sufficient inter-particle friction to prevent rutting. AASHTO T304 Methods A, B, and C as well as the Kansas Department of Transportation test procedure KT-50 were used to determine the FAA value. different site. 200) in Mineral Aggregates by Washing The shape, angularity, and surface texture of fine aggregate are collectively used to characterize its morphology . Inspect each aggregate particle for the specified number of fractured surfaces. Calculate the percentage of particles with the specified number of fractured faces using the following equation: Pavement Interactive was developed by thePavement Tools Consortium, a partnership between several state DOTs, the FHWA, and the University of Washington, as part of their effort tofurther develop and use computer-based pavement tools. at the Authorized Site, using an IP address within the range identified in the subscription. The Fine Aggregate Angularity test directly calculates the angularity of the fine aggregate with the help of uncompacted void content of the aggregate. Commonwealth of Pennsylvania. Several alternate procedures have been developed that attempt to improve upon a simple quantification of fractured faces. Superpave adopted ASTM Test Methods for Uncompacted Void Content of Fine Aggregate (C1252 Method A) to determine fine aggregate angularity (FAA). On a sample of known gradation, the loose uncompacted void content is indicative of the relative angularity and surface texture of the sample. Fine Aggregate Angularity: Conventional and Unconventional Approach Source Superpave adopted ASTM Test Methods for Uncompacted Void Content of Fine Aggregate (C1252 Method A) to determine fine aggregate angularity (FAA). The fine aggregate angularity (FAA) test (Figure 1) is an indirect method of assessing the angularity of fine aggregate.

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