1、Designation: D 5106 08Standard Specification forSteel Slag Aggregates for Bituminous Paving Mixtures1This standard is issued under the fixed designation D 5106; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers crushed steel slag coarse andfine aggregates suitable for use in bituminous paving mixtures.1.2 Steel
3、 slag coarse and fine aggregates are currently beingused entirely (Note 1) or combined with other mineral aggre-gates, such as those covered in Specification D 692 or D 1073,to produce paving mixtures similar to those described inSpecification D 3515 or D 4215.NOTE 1When 100 % of the coarse aggregat
4、e in a bituminous mixtureis steel slag, the amount of steel slag fines in that mixture may be limitedto prevent bulking.1.3 The values stated in SI units are to be regarded asstandard. The values shown in parentheses are for informationonly.1.4 The text of this specification references notes andfoot
5、notes which provide explanatory material. These notes andfootnotes (excluding those in tables and figures) shall not beconsidered as requirements of the standard.2. Referenced Documents2.1 ASTM Standards:2C88 Test Method for Soundness of Aggregates by Use ofSodium Sulfate or Magnesium SulfateC117 Te
6、st Method for Materials Finer than 75-m (No.200) Sieve in Mineral Aggregates by WashingC 125 Terminology Relating to Concrete and ConcreteAggregatesC 131 Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the LosAngeles MachineC 136 Test Method for Sie
7、ve Analysis of Fine and CoarseAggregatesC 142 Test Method for Clay Lumps and Friable Particles inAggregatesD8 Terminology Relating to Materials for Roads and Pave-mentsD75 Practice for Sampling AggregatesD 448 Classification for Sizes of Aggregate for Road andBridge ConstructionD 692 Specification f
8、or Coarse Aggregate for BituminousPaving MixturesD 1073 Specification for Fine Aggregate for BituminousPaving MixturesD 3319 Practice for the Accelerated Polishing of Aggre-gates Using the British WheelD 3515 Specification for Hot-Mixed, Hot-Laid BituminousPaving MixturesD 3665 Practice for Random S
9、ampling of ConstructionMaterialsD 4215 Specification for Cold-Mixed, Cold-Laid Bitumi-nous Paving MixturesD 4318 Test Methods for Liquid Limit, Plastic Limit, andPlasticity Index of SoilsD 4792 Test Method for Potential Expansion of Aggregatesfrom Hydration ReactionsD 4867/D 4867M Test Method for Ef
10、fect of Moisture onAsphalt Concrete Paving MixturesD 5711 Test Method for Determining the Adherent Coatingon Coarse AggregatesD 5821 Test Method for Determining the Percentage ofFractured Particles in Coarse Aggregate2.2 Federal Registrar:3SW846 1311 EPA Test Method, Toxicity CharacteristicLeaching
11、Procedure3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 steel slag, nthe nonmetallic product, consistingessentially of calcium silicates and ferrites combined withfused and mineralogically combined oxides of iron, aluminum,manganese, calcium, and magnesium, that is developed
12、simul-taneously with steel in basic oxygen, electric, or open hearthfurnaces.1The specification is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.50 onAggregate Specifications.Current edition approved Jan. 1, 2008. Publis
13、hed February 2008. Originallyapproved in 1991. Last previous edition approved in 2003 as D 5106 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Doc
14、ument Summary page onthe ASTM website.3Available from the Department of Commerce, National Technical InformationCenter, 5285 Port Royal Road, Springfield, VA 22151. Order Number: EPAW-846.3.3.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United
15、States.3.1.2 Other terms used in this specification are defined inTerminologies C 125 and D8.4. Ordering Information4.1 Orders for the material under this specification shallinclude the following information:4.1.1 The name of material (steel slag coarse aggregateand/or steel slag fine aggregate).4.1
16、.2 The specification designation and year of issue.4.1.3 The grading of the aggregate to be furnished, byreference to a size number in Classification D 448 for coarseaggregate, grading number in Specification D 1073 for fineaggregate, or other grading as specified by the purchaser.4.1.4 The quantity
17、 required.4.1.5 For coarse aggregate, whether the intended use is forconventional mixtures or open-graded friction course mixtures(see 6.1.2), and whether for surface courses or base courses(see 6.1.3).4.1.6 For sulfate soundness tests, which salt is to be used inTest Method C88 and whether soundnes
18、s requirements areapplicable for the fine aggregate.4.1.7 Any special requirements.5. General Characteristics5.1 The coarse and fine aggregates shall consist of hard,tough, durable pieces of steel slag as defined in 3.1.1. Theaggregates shall be processed, as necessary to meet therequirements of thi
19、s specification, by crushing or screening, orboth, and magnetic separation for the removal of metallics. Atthe time of delivery, the aggregates shall not contain injuriousamounts of foreign materials such as clay, loam, wood, trampmetal, unhydrated lime, or other deleterious materials.6. Physical Re
20、quirements6.1 Coarse Aggregate:6.1.1 GradingThe coarse aggregate grading shall con-form to the requirements of Classification D 448 for the sizenumber designated, or to another grading as stated in the order(Note 2).NOTE 2The coarse aggregate grading to be furnished is dependentupon the desired comp
21、osition of the paving mixture, and whether thegrading to be used in the mixture is achieved with or without blending.Other coarse aggregate gradings may be used provided that the combinedaggregates and filler, when used, will produce a paving mixture thatprovides the desired characteristics.6.1.1.1
22、The size to be used is dependent upon the desiredcomposition of the paving mixture, and the required size orsizes either before or after blending as specified.6.1.2 Crushed Pieces in AggregateOrders for materialunder this specification shall state the appropriate requirementsfor percentage of crushe
23、d pieces (Test Method D 5821).6.1.2.1 Conventional mixtures, not less than 40 % by mass,of the pieces retained on the 4.75-mm (No. 4) sieve shall haveat least one fractured face (Notes 3 and 4).6.1.2.2 Open graded friction course mixtures, of the aggre-gate pieces retained on the 4.75-mm (No. 4) sie
24、ve, not less than90 % by mass, shall have one or more fractured faces and 75 %by mass, two or more fractured faces.NOTE 3Attention is called to the distinction between conventional(dense mixtures or open mixtures) and open-graded friction coursemixtures in Specification D 3515.NOTE 4Some sources of
25、aggregate contain angular particles that willperform similarly to a mechanically crushed particle. Where laboratorytests or service records indicate this to be true, such angular particles maybe considered as crushed.6.1.3 Polishing CharacteristicsThe coarse aggregates, orthe coarsest fraction of th
26、e aggregate for use in surface coursemixtures, shall be of a type known to possess adequateresistance to polishing action of the anticipated traffic (Note 5).NOTE 5No ASTM standard has been recognized to be capable ofdefining adequate resistance to the polishing action of specific trafficconditions.
27、 Test Method D 3319 has been found useful in evaluating therelative polish resistance between samples of different aggregates ormixtures containing different aggregates.6.1.4 SoundnessThe coarse aggregate, when subjected tofive cycles of the soundness test (see Test Method C88), shallhave a mass los
28、s not greater than 12 % when sodium sulfate isused or 18 % when magnesium sulfate is used. If the salt is notdesignated by the purchaser, the aggregate shall be acceptableif it meets the indicated limit for either salt used.6.1.5 DegradationAggregate subjected to testing in ac-cordance with Test Met
29、hod C 131 shall have a loss not greaterthan 40 % for surface courses or 50 % for base courses.6.2 Fine Aggregate:6.2.1 The fine aggregate grading shall conform to therequirements of Specification D 1073 for the size numberdesignated, or to another grading as designated in the order(Note 6).NOTE 6The
30、 fine aggregate grading to be furnished is dependent uponthe desired composition of the paving mixture, and whether the grading tobe used in the mixture is achieved with or without blending. Other fineaggregate gradings may be used provided that the combined aggregatesand filler, when used, will pro
31、duce a paving mixture that provides thedesired characteristics.6.2.2 The size to be used is dependent upon the desiredcomposition of the paving mixture, and the required size orsizes either before or after blending as specified.6.2.3 Grading VariabilityFor continuing shipments offine aggregate from
32、a given source, the fineness modulus shallnot vary more than 0.25 from the base fineness modulus (Note7). The base fineness modulus shall be that value that is typicalof the source. The base fineness modulus shall not be changedexcept when approved by the purchaser.6.2.3.1 The base fineness modulus
33、shall be determined fromprevious tests, or if no previous tests exist, from the average ofthe fineness modulus values for the first ten samples (or allpreceding samples if less than ten) on the order.NOTE 7Base fineness modulus of the fine aggregate has a greatinfluence on proportioning of bituminou
34、s mixtures; therefore, largechanges in its value may make adjustments in the mixture necessary.6.2.4 Plasticity index of the fine aggregate fraction smallerthan the 425m (No. 40) sieve shall not exceed 4.0 (TestMethod D 4318).6.3 General Requirements:6.3.1 ExpansionAggregates that contain components
35、 sub-ject to hydration, such as free-lime (CaO), shall be obtainedD5106082from sources approved by the purchaser on the basis of eithersatisfactory performance record, aging, or other treatmentknown to reduce potential expansion to a satisfactory level(Note 8).NOTE 8Test Method D 4792 is used to eva
36、luate the potential forexpansion of dense graded materials only.6.3.2 Environmental StabilityAggregates shall be evalu-ated for environmental considerations (air quality, water qual-ity, and storage) using the required local, state, and federal testmethods in effect at the time of use.6.3.2.1 The ag
37、gregate shall meet all applicable local, state,and federal environmental requirements in effect at the time ofuse.6.3.2.2 Aggregates that exhibit a potential for producingleachates shall be tested using the Toxicity CharacteristicLeaching Procedure (EPA Method SW846 1311) or appropri-ate test method
38、 as approved by the purchaser. Results shallindicate that all areas tested (metals, volatiles, semi-volatiles,and organics) are below regulatory limits.6.3.3 Special RequirementsEvaluation will be requiredfor the following items (but not exclusive of) when specified bythe purchaser: the potential fo
39、r stripping (Test Method D 4867/D 4867M) and friable particles (Test Method C 142).7. Sampling7.1 Sample the aggregates and determine the propertiesenumerated in this specification in accordance with the follow-ing standards:7.1.1 Random SamplingPractice D 3665,7.1.2 SamplingPractice D 75,7.1.3 Grad
40、ing and Fineness ModulusTest Methods C 136and C117, Procedure A,7.1.4 SoundnessTest Method C 88,7.1.5 DegradationTest Method C 131,7.1.6 ExpansionTest Method D 4792,7.1.7 Friable ParticlesTest Method C 142,7.1.8 StrippingTest Method D 4867/D 4867M,7.1.9 Adherent CoatingsTest Method D 5711,7.1.10 Cru
41、shed CountTest Method D 5821,7.1.11 Plasticity IndexTest Method D 4318, and7.1.12 LeachingEPA Test Method SW846 1311.8. Keywords8.1 bituminous paving; coarse aggregate; fine aggregate;paving mixtures; steel slag aggregateSUPPLEMENTARY REQUIREMENTSThe following supplementary requirement shall apply o
42、nly when specified by the purchaser in thecontract or order.S1. Sulfate SoundnessThe fine aggregate, when subjectedto five cycles of the soundness test in accordance with TestMethod C88, shall have a weighted loss of not greater than15 % when sodium sulfate is used or 20 % when magnesiumsulfate is u
43、sed. If the salt used is not stated by the purchaser, thefine aggregate shall be acceptable if it meets the requirementwhen tested with either salt.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users
44、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 every fi
45、ve 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 technical
46、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 Conshohocken, 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).D5106083
