1、Designation: D452/D452M 91 (Reapproved 2013)1Standard Test Method forSieve Analysis of Surfacing for Asphalt Roofing Products1This standard is issued under the fixed designation D452/D452M; the number immediately following the designation indicates the yearof original adoption or, in the case of rev
2、ision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEUnits information was editorially corrected in July 2013.1. Scope1.1 This test method covers the determina
3、tion of the particlesize distribution of surfacing material, other than mineralgranules, such as sand, mica, talc, or other powdered or flakymineral particles, used on both sides of “smooth” roll roofingand on the reverse side of asphalt shingles and mineral-surfaced roll roofing.1.2 The values stat
4、ed in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 Th
5、is standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documen
6、ts2.1 ASTM Standards:2E11 Specification for Woven Wire Test Sieve Cloth and TestSieves3. Summary of Test Method3.1 A weighed sample of surfacing material is separatedthrough a series of sieves of progressively smaller openings forthe determination with particle size distribution.4. Significance and
7、Use4.1 This test method is used to determine the grading ofmaterials used as surfacing. The results are used to determinecompliance of the particle size distribution with applicablespecification requirements.5. Apparatus5.1 SievesA set of the sieves listed in Table 1, conformingto Specification E11.
8、 For routine testing, the group of sievesactually used shall include only those appropriate for thematerial being graded. Coarser or finer sieves, on which lessthan 0.05 mass % of the specimen would be found aftersieving, need not be included in the group.NOTE 1For relatively coarse or flaky materia
9、ls, such as coarse mica,sieves from 1.18-mm to 212-m (Nos. 16 to 70) inclusive, will usually befound suitable. For finer surfacing materials, such as fine mica or talcflour, sieves from 600 to 75-m (Nos. 30 to 200) inclusive, will usuallygive a satisfactory sieve analysis.5.2 Sieve ShakerA mechanica
10、lly operated sieve shaker,which produces a uniform rotary motion and tapping actionwith 140 to 160 taps per minute. The sieve shaker shall be fittedwith a hard maple plug to receive the impact of the tappingdevice. The entire apparatus shall be rigidly mounted bybolting to a solid foundation, prefer
11、ably concrete.5.3 Sampling SplitterA riffle sampler with 9.5 or 12.7-mm38 or12-in. divisions, for reducing the sample to the specimenrequired for sieve analysis.5.4 Oven, capable of maintaining 105C 221F.5.5 BalanceA laboratory balance sensitive to 0.1 g.6. Sampling6.1 Each shipment of surfacing of
12、a single type shall beconsidered a unit for sampling. If a shipment contains morethan one type, the entire quantity of each type in the vehicleshall be considered a unit for sampling.6.2 Take the sample of surfacing shipped in bulk from thechute or conveyor while the vehicle is being loaded orunload
13、ed. The ideal place is just where the material drops fromthe chute or belt. Collect equal portions from the full width andthickness of the stream at regular intervals, with such fre-quency that a minimum of five samples will be taken and thetotal mass of the sample will be not less than 7.3 kg 16 lb
14、. Donot allow the sampling receptacle to overflow under any1This test method is under the jurisdiction of ASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.02 on SteepRoofing Products and Assemblies.Current edition approved July 1, 2013. Published Ju
15、ly 2013. Originally approvedin 1937. Last previous edition approved in 2008 as D452 91 (2008). DOI:10.1520/D0452_D0452M-91R13E01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume informati
16、on, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1circumstances. Overflow would tend to reject a higher propor-tion of the large particles than the small ones, and a re
17、presen-tative sample would not be obtained. The sample should notinclude the initial material discharged from the chute orconveyor.6.3 Take the sample from a shipment of surfacing shipped inbags, selected at random and equal in number to the cube rootof the total number of bags in the vehicle. Colle
18、ct equalportions of not less than 0.23 kg 0.5 lb from each of the bagstaken from sampling and combine.7. Test Specimen7.1 Reduce the sample by riffling to a specimen of 100 to112 g. Use the entire specimen obtained from reduction of thesample for the sieve analysis.8. Procedure8.1 Assemble the group
19、 of sieves selected from Table 1 inorder, with the sieve having the largest opening at the top andthe one having the smallest opening at the bottom. Add a solidcollecting pan below the bottom sieve. Dry the test specimen inan oven at about 105C 221F for 2 h. Remove from theoven, cool in a desiccator
20、, and then weigh to within 60.1 g.Place the specimen in the topmost sieve and complete theassembly by placing a solid cover over the top sieve. Securelyfasten the sieve assembly in the mechanical sieve-shakingdevice (see 5.2).8.2 Pass the specimen through the assembled group ofsieves by subjecting i
21、t to the action of the sieve shaker for aperiod of 20 6 1 min. At the end of this period, remove thesolid collecting pan containing the portion of the materialpassing the finest sieve and weigh the contents to within 60.1g. Then reassemble the collecting pan with the sieves andcontinue shaking for a
22、n additional 10 min. At the end of thisperiod remove the collecting pan and weigh the contents again.If the additional material passing the finest sieve during thissecond shaking period does not exceed 0.5 mass % of thespecimen, consider the sieving complete. If it does exceed0.5 %, reassemble the c
23、ollecting pan and sieves and shake forsuccessive additional 10-min periods, weighing the materialcollected in the pan after each period of shaking, until theamount passing the finest sieve in a 10-min shaking period isless than 0.5 mass % of the specimen.8.3 Carefully remove the portion of the speci
24、men retainedon each of the sieves and on the pan, and weigh each portionto within 60.1 g.9. Report9.1 Report the results of the sieve analysis to the nearest0.1 % (omitting the results for those sieves on which less than0.05 mass % of the test specimen was collected), as illustratedin Table 1.9.2 Th
25、e sum of the percentages reported shall be 100 61.5 %.10. Precision and Bias10.1 A retest made after recombining a freshly screenedsample by the same operator using the same sieves should giveresults within 61 percentage point of the results previouslyobtained on each sieve. For example, if 25.0 % w
26、as retainedoriginally on the 212-m (No. 70) sieve, a retest should givebetween 24.0 and 26.0 %.11. Keywords11.1 asphalt roofing; minerals; sieves; surfacingASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard
27、. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed
28、every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible te
29、chnical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshoh
30、ocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to pho
31、tocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Report FormRetained on Sieve Passing Sieve Percent1.70-mm (No. 12) . . .1.18-mm (No. 16) 1.70-mm (No. 12)A.850-m (No. 20) 1.18-mm (No. 16) .600-m (No. 30) 850-m (No. 20) .425-m (No. 40) 600-m (No. 30) .300-m (No. 50) 425-m (No. 40) .212-m (No. 70) 300-m (No. 50) .150-m (No. 100) 212-m (No. 70) .75-m (No. 200) 150-m (No. 100) .75-m (No. 200) .Total .ADesignates U.S. Standard Sieve.D452/D452M 91 (2013)12
