AASHTO T 37-2007 Standard Method of Test for Sieve Analysis of Mineral Filler for Hot Mix Asphalt (HMA)《道路和铺砌材料用矿物填料筛分的测试方法》.pdf

1、Standard Method of Test for Sieve Analysis of Mineral Filler for Hot Mix Asphalt (HMA) AASHTO Designation: T 37-07 (2011)1ASTM Designation: D546-05 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington, D.C. 20001 TS-2c T 37-1 AASHTO S

2、tandard Method of Test for Sieve Analysis of Mineral Filler for Hot Mix Asphalt (HMA) AASHTO Designation: T 37-07 (2011)1ASTM Designation: D546-05 1. SCOPE 1.1. This method of test covers the sieve analysis of mineral fillers used in hot mix asphalt (HMA). 1.2. The values stated in SI units are to b

3、e regarded as the standard. 1.3. This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health pr

4、actices and determine the applicability of regulatory limitations prior to use. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M 17, Mineral Filler for Bituminous Paving Mixtures M 92, Wire-Cloth Sieves for Testing Purposes M 231, Weighing Devices Used in the Testing of Materials T 88, Particle Size

5、 Analysis of Soils T 248, Reducing Samples of Aggregate to Testing Size 2.2. ASTM Standard: C670, Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials 3. SIGNIFICANCE AND USE 3.1. The method is used to determine compliance of mineral fillers with

6、the grading requirements of M 17. 4. APPARATUS 4.1. Weighing DeviceConforming to the requirements of M 231, Class G 2. 4.2. SievesConforming to M 92, square-hole, woven-wire cloth, with nominal opening sizes of 75-m (No. 200), 300-m (No. 50), and 600-m (No. 30). 4.3. OvenOf sufficient size, capable

7、of maintaining a uniform temperature of 110 5C (230 9F). 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-2c T 37-2 AASHTO 5. TEST SAMPLE 5.1. Obtain the sample for test in accordance with M 17 and red

8、uce it to testing size in accordance with T 248. Use a minimum of 100 g of dry material for each sieve analysis. 6. PROCEDURE 6.1. Dry the test sample to constant mass at a temperature of 110 5C (230 9F) and determine the mass to the nearest 0.1 g. 6.2. After drying and determining the mass, place t

9、he dry test sample on the 600-m (No. 30) sieve, which shall be nested above the 300-m (No. 50) and 75-m (No. 200) sieves. Wash the material by means of a stream of water from a faucet (Note 1). Continue the washing until the water coming through the 75-m (No. 200) sieve is clear (Note 2). Remove the

10、 material retained on each of the three sieves into individual pans, washing the sieves as necessary to remove all material. If desired, excess water may be decanted from the pans prior to drying (Note 3). Dry the residue from each sieve to constant mass at a temperature of 110 5C (230 9F) (Note 4).

11、 Calculate the mass of material retained on each sieve as a percentage of the original sample. Note 1A spray nozzle or a piece of rubber tubing attached to a water faucet may be used for the washing. The velocity of the water, which may be increased by pinching the tubing, must be controlled to prev

12、ent loss of any sample by splashing over the sides of the sieves. Note 2Take care to avoid accumulation of water on the 75-m (No. 200) sieve, because it may become clogged such that the operation cannot be completed within a reasonable period. Note 3If excess water is decanted from the pan containin

13、g the washed aggregate prior to drying, care should be taken to avoid the loss of fines. The excess water should be decanted through a 75-m (No. 200) sieve and any material on the sieve should be returned to the sample with minimal washing. Note 4Some material passes the 75-m (No. 200) sieve on dry

14、sieving that did not pass during the washing operation. When desired, additional information may be obtained by dry sieving the portion of the sample retained on the 75-m (No. 200) sieve in accordance with T 88. 7. REPORT 7.1. Report the results of the sieve analysis as the total percentage passing

15、each sieve, expressed to the nearest 0.5 percent. 8. PRECISION AND BIAS 8.1. PrecisionThe estimates of precision for this test method are shown in Table 1. They are based on results of an interlaboratory testing program where replicable samples of four different mineral fillers were tested in 20 lab

16、oratories using this test method. The materials tested ranged from a coarse mineral filler that had about 93 percent passing the 600-m (No. 30) sieve and 51 percent passing the 75-m (No. 200) sieve, to finer mineral fillers that had about 99 percent passing the 300-m (No. 50) sieve and 95 percent pa

17、ssing the 75-m (No. 200) sieve. 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-2c T 37-3 AASHTO Table 1Average Precision Precision Test Result Value, Percent in Size FractionaStandard Deviation, (1s)

18、, %bAcceptable Range of Test Results, (d2s), %bSingle operator Less than 2 0.14 0.5cMore than 2 0.7 2.0 Multilaboratory Less than 2 0.17 0.5 More than 2 1.0 2.8 aThe percent between consecutive sieves, or percent retained on the largest sieve, 600-m (No. 30), or percent passing the smallest sieve, 7

19、5-m (No. 200). bThese numbers represent, respectively, the (1s) and (d2s) limits as described in ASTM C670. cThe minimum d2s is 0.5 percent in this case because results of the test are expressed to the nearest 0.5 percent. 8.2. BiasResearch to determine the bias of this test method has not been cond

20、ucted. Therefore, no statement on bias is made. 1Except for the title, requirements for the weighing device, precision of weighing, and SI units, this method essentially corresponds to ASTM D546-05. 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.