To create the working solution, mix 85ml of solution for every gallon of distilled water. Nd t 176 plastic fines in graded aggregates and soils by use of the sand equivalent test. Method of test for determination of degradation value. Ensure that the holes in the tip of the irrigator tube are free of sand. The sand equivalent test provides a measure of the. The manual sand equivalent shaker is ideal for use on the job site to give more uniform shaking action. Method b19 the determination of the sand equivalent of aggregates 1 scope this method is intended to serve as a rapid test to show the presence or absence of detrimental fines or claylike materials in soils or mineral aggregates. Sand equivalent the sand equivalent test, described in the test description section, separates out a fine aggregate samples sand and plastic fines and dust portion to determine the content of the latter. Perform the test at a location free from vibration. Manual sand equivalent shaker myers sand equivalent testing.
Download limit exceeded you have exceeded your daily download allowance. It is measured by standardized test methods such as astm d2419, aashto t176, and en 9338. Full text of correlation study between sand equivalent and. Prepare sand equivalent test samples from the passing 4. Procedure for determining combined specific gravities for different sources of material. Stock solution for sand equivalent test is a concentrated calcium chloride solution which is diluted with distilled water to create the working solution for conducting sand equivalent tests. The knowledge of pavement macrotexture depth serves as a tool in characterizing the. The sand equivalent test indicates the relative proportions of claylike fines in granular soils and aggregates. F sufficiently to permit a complete separation on the 4. Tests on damp samples will generally give lower sand equivalent values than tests on ovendried. See aashto t 176 for a detailed listing of sand equivalent apparatus. The sand equivalent test quantifies the relative abundance of sand versus clay in soil.
Sand equivalent test sets are sold as complete kits or separate components to measure proportions of clay line fines present in aggregates. In addition the shaker also includes a stroke indicator and counter mounted on one end. It is measured by standardized test methods such as astm d2419, aashto. If the material shows any free water it is too wet to test and must be drained and airdried, mixing if frequently to ensure uniformity. Dec 09, 2012 sand equivalent test nanyang technological university. Canadian council of independent laboratories may 2015. It is the responsibility of the user of this method to consult and use departmental safety and. Canadian council of independent laboratories may 2015 plastic fines in graded aggregates and soils by use of the sand equivalent test aashto t176 08 astm d241914 may 2015 page 4 of 6 method 2 prewet aashto and astm procedure b astm only. Establish correction factors by the following procedures. The portable unit features a removable wooden case.
This test is intended to serve as a rapid field test to show the relative amounts of plastic fines in a graded aggregate or soil. The sand equivalent test figure 1 is a rapid field test to show the relative proportions of fine dust or claylike materials in fine aggregate or granular soils. This method covers the procedure for determining the susceptibility of an aggregate to degrade into plastic fines when abraded in the presence of water. It serves as a rapid test to show the relative proportion of fine dust or claylike materials in fine aggregates fa and soils. Determine the exact amount required to provide four test specimens by dipping four measuring tins full of the material and determining either the combined volume or mass. Training video produced by the oklahoma highway construction m. Sample preparation for sand equivalent detersslnation the sand. The materials division testing manual has been prepared for the purpose of standardizing test procedures used in the laboratories under the jurisdiction of the nevada department of transportation. Sand equivalent test is important because it is a simple test to determine whether a particular aggregate has enough dust or plastic fines to make a hma mixture unstable or susceptible to stripping is valuable in preventing the manufacture of poor performing. The aashto standard test procedure reports the percentage of material finer than the no. This procedure covers the determination of plastic fines in accordance with aashto t 17608.
The complete flat and elongated particle test procedure can be found in. January 2016 test procedure for sand equivalent test txdot designation. Astmd2419 standard test method for sand equivalent value. Tolerances and repeatability as outlined in astm designation d2419, sand equivalent value of soils and fine aggregate.
Fine aggregate angularity is important because an excess of rounded fine aggregate often in the form of natural sand can lead to hma rutting. Oct 17, 2015 sand equivalent value test purpose to determine the percent of undesirable particles in the fine aggregate fraction used in the design of portland cement concrete mixtures. Uniform shaking action pushes the top frame by a simple stroke of the hand. Ideal for use on job site to give more uniform shaking action. This method determines the relative proportion of detrimental fine dust or clay like particles in soils or. Materials test manual nevada department of transportation. Scope this test method provides the procedure for measuring the relative proportions of detrimental fine dust or claylike material in soil or fine aggregates. Sand equivalent test is important because it is a simple test to determine whether a.
Sand equivalent serve as rapid fieldcorrelation tests for soil testing. Testing for sand equivalent will be performed on aggregate stockpile samples proportioned and composited to meet the. Equipment and materials the sand equivalent test kit consists of. Method of test for sand equivalent of soils and fine aggregate dotd designation. When filling the measuring tin, tap the bottom edge of the tin with a hard object or on a hard. D241914 standard test method for sand equivalent value of soils and fine aggregate sand equivalent value fines content granular soils. This method determines the relative proportion of detrimental fine dust or claylike particles in soils or. In the sand equivalent test, a sample of aggregate passing the no. Sand equivalent shakers are available in motorized and handoperated models for determining the portion of undesirable claylike fines in granular soils and fine aggregates. This method of test is designed to determine the relative proportion of dust or clay material in fine aggregates using a mechanical shaker. The shaker consists of a mounting bracket with a cylinder holder and two spring steel straps. The purpose of this test method is to indicate, under standard conditions, the relative. Sand equivalent test dkteskination it ait be well at this point to consider the work involved in the determination of the sand equivalent values.
Offers increased accuracy and ease of operation compared to a springtype timer. So if your sample has a 90 sand equivalent that means that 90% of the sample was good material and 10% was detrimental. Feb 04, 2014 aashto t 176 sand equivalent test duration. See aashto t 176 for a detailed listing of sand equivalent. Texture sand patch general description this test method is suitable for field tests to determine the average macrotexture depth of a pavement surface. A minimum sand equivalent value may be specified to limit. Standard test method for sand equivalent value of soils.
Test procedure for sand equivalent test txdot designation. However, if a test was identical to an aashto, ast, or mftp procedure it was not m duplicated in this manual. The term sand equivalent expresses the concept that most fine aggregates are mixtures of desirable coarse particles e. Allow the cylinder with contents to stand undisturbed, free of any vibration, for 10. Sand equivalent value of soils and fine aggregate categories of soils based on particle size. The fine aggregate angularity faa test figure 1 is an indirect method of assessing the angularity of fine aggregate. If the material shows any free water, it is too wet to test and must be drained and air dried.
Sandequivalent sand equivalent the sand equivalent test. Plastic fines in graded aggregates and soils by use of the sand equivalent test. The term sand equivalent expresses the concept that most granular soils and fine. The test is used to qualify aggregates for applications where sand is desirable but fines and dust are not. If the resulting test value is lower than that specified, however, it will be necessary to rerun the test on a dried test specimen. Test for workability of concrete slump cone duration.
Apr 30, 2011 basically the test separates these detrimental fines from the nondetrimental sand particles. This manual has the current versions of our laboratory test procedures. Sand equivalent results on test specimens that have not been dried will. The method is also applicable for determining the relative proportions of detrimental fine dust or claylike material in soils.
The test results are a number but it is a percentage of good material in your sample. Sand equivalent test 16 its primary application was for concrete aggregate and sand. References california test 201 soil and aggregate sample preparation california test 226 moisture content of soils and aggregates by oven. If the sand equivalent, determined from a test on one dried test specimen, is below. All of these materials must be demonstrated to be free from interferences under the conditions of the analysis by analyzing. This procedure covers the determination of plastic fines in. Place the cylinder in a manual shaker and shake for 100 cycles.
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