Standard Method for Sieve Analysis of Fine and Coarse Aggregates (ASTM C136)

Standard Method for Sieve Analysis of Fine and Coarse Aggregates (ASTM C136)

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Language: English

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00:00
today we're going to demonstrate the dry civic test method used to determine the particle size distribution of fine and coarse aggregates in accordance with ASTM C 136 we're a sample of dry aggregate of a known mass is separated through a series of SIVs with progressively smaller openings to determine the particle size distribution of the test sample the standard test method for sieve analysis of fine and
00:32
coarse aggregates is used primarily to determine the grading of materials proposed for use as aggregates and to determine the compliance of particle size distribution where applicable specifications are required and to provide necessary data for quality control of production of various aggregate products and mixtures containing aggregates device is required for this test method are a balance or scale used in testing
01:03
of fine and coarse aggregates with a readability of 0.1 grams for fine aggregate and 0.5 grams for coarse aggregate or mixture of fine and coarse aggregates tests ifs that conform to ASTM e 11 specifications a mechanical Civic device decree motion of the particles to bounce tumble or otherwise turn as to present different orientations to the Civic surface an
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oven of appropriate size capable of maintaining a uniform temperature of 110 degrees Celsius a sieve brush a sample container or pan a sieve pan a sieve stack cover and a way to record and analyze your test findings it is important to limit the quantity of test materials on any given sieve so that all particles have the opportunity to reach the sieve openings a number of
02:07
times during civic operations for this demonstration the bulk sample has already been reduced to an amount suitable for testing using the applicable procedure described in ASTM C 702 the procedure for standard test method for sieve analysis of fine and coarse aggregates we first dry the test sample in an oven at a constant temperature of 110 degrees Celsius measure on a balance or scale the tare
02:39
weight or unladen weight of your sample container or pan now place the test sample into the sample container and measure its gross weight next select tests ifs with suitable openings to furnish enough information required by the specifications covering the material being tested neste sieves in order of decreasing size openings from top to bottom today we're using Gilson 8-inch
03:10
ASTM e 11 stainless steel compliance grade tests ifs place the sieve stack onto a sieve pen now place the test sample onto the top sieve and then cap the sieve stack with a sieve cover agitate the SIVs by means of a mechanical civic apparatus for a sufficient period of time so that not more than one percent by mass of the material retained on any individual
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sieve will pass that sieve during one minute of continuous and civic for this demonstration we are using the Gilson ss15 mechanical sieve shaker the ss15 delivers superior accuracy and repeatability for particle separations by combining a back and forth lateral motion with an up-and-down and tilting motion which causes test material to travel in an orbital direction on the sieve surface once sitting has completed its course measure and record the mass weight of
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each sample size increment on a scale or balance to the nearest 0.1 gram repeat this process for each sieve and the sieve pan the total mass of the sieve sample should match closely with the original mass of the test sample before civic if the amount differs by more than 0.3 percent based on the original dry sample mass then the results should not be used and the test should be repeated
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in recording the mass of each sample size and determining the gross test sample mass you should include the total percentage of material passing each sieve and/or the mass of the material retained on each test sieve and pan and/or the percentage of material retained passing consecutive sits now you have all the information needed to determine the particle size distribution of the test sample and in doing so
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determine the particle size distribution of the bulk sample for aggregate uses and mixtures for any questions concerning dry sieving samples or for any Gilson product please contact the Gilson technical support team [Music]

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