1、Designation: D 6155 06Standard Specification forNontraditional Coarse Aggregates for Bituminous PavingMixtures1This standard is issued under the fixed designation D 6155; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、last revision. 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 the use of coarse aggregatesnot traditionally used in bituminous paving mixtures. Thesenont
3、raditional aggregates can be described as any aggregateother than those described in Specifications D 692, D 693,D 1139, and D 5106, (crushed stone, crushed hydraulic-cementconcrete, crushed blast-furnace slag, steel furnace slag, andcrushed gravel) suitable for use in bituminous paving mixtures,as
4、described in Specifications D 3515 or D 4215.1.2 The values stated in SI units are to be regarded as thestandard. The inch-pound units given in parentheses are forinformation only.1.3 The text of this specification references notes andfootnotes that provides explanatory material. These notes andfoot
5、notes (excluding those in tables and figures) shall not beconsidered as requirements of the specification.1.4 This 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 an
6、d health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 29/C 29M Test Method for Bulk Density (“Unit Weight”)and Voids in AggregateC88 Test Method for Soundness of Aggregates by Use ofSodium Sulfate or Magnesium SulfateC
7、 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 Sieve Analysis of Fine and CoarseAggregatesC 142 Test Method for Clay Lumps and Friable Par
8、ticles inAggregatesC 294 Descriptive Nomenclature for Constituents of Con-crete AggregatesD8 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 for Coarse Aggrega
9、te for BituminousPaving MixturesD 693 Specification for Crushed Aggregate for MacadamPavementsD 1139 Specification for Aggregate for Single or MultipleBituminous Surface TreatmentsD 2489 Practice for Estimating Degree of Particle Coatingof Bituminous-Aggregate MixturesD 3319 Practice for the Acceler
10、ated Polishing of Aggre-gates Using the British WheelD 3515 Specification for Hot-Mixed, Hot-Laid BituminousPaving MixturesD 3665 Practice for Random Sampling of ConstructionMaterialsD 4215 Specification for Cold-Mixed, Cold-Laid Bitumi-nous Paving MixturesD 4792 Test Method for Potential Expansion
11、of Aggregatesfrom Hydration ReactionsD 4867/D 4867M Test Method for Effect of Moisture onAsphalt Concrete Paving MixturesD 5106 Specification for Steel Slag Aggregates for Bitumi-nous Paving MixturesD 5711 Test Method for Determining the Adherent Coatingon Coarse AggregatesD 5821 Test Method for Det
12、ermining the Percentage ofFractured Particles in Coarse Aggregate1This 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 July 1, 2006. Published July 20
13、06. Originally approvedin 1997. Last previous edition approved in 2001 as D 6155 012For 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 Document Summary pa
14、ge onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.2 U. S. Environmental Protection Agency Standards:SW846 1311 EPA Test Method, Toxicity CharacteristicLeaching Procedure33. Terminology3.1 DefinitionsFor defining
15、 aggregate types, see Descrip-tive Nomenclature C 294 and Terminologies C 125 and D8.4. Ordering Information4.1 Orders for the material under this specification shallinclude the following information:4.1.1 The specification designation and year of issue,4.1.2 The size number as given in Classificati
16、on D 448 orgrading to be furnished,4.1.3 The quantity required,4.1.4 Use of the coarse aggregate, whether for conventionalmixtures or open-graded friction course mixtures (see 5.3 and5.4), and whether for surface courses or base courses,4.1.5 In case of sulfate soundness tests, which salt is to beus
17、ed,4.1.6 Any angularity requirements, and4.1.7 Any special requirements.5. Physical Properties5.1 GeneralThe coarse aggregate shall consist of hard,strong, durable pieces, free of adherent coatings and conform-ing to the requirements of this specification.5.2 GradingThe grading shall conform to one
18、of thefollowing subparagraphs:5.2.1 The coarse aggregate grading shall conform to therequirements of Classification D 448 for the size numberdesignated in the order. The size to be used is dependent uponthe desired composition of the paving mixture, and the requiredsize or sizes either before or aft
19、er blending as specified.5.2.2 The coarse aggregate grading shall conform to thegrading as specified in the purchase order. The grading to beused is dependent upon the desired composition of the pavingmixture and shall be determined by the purchaser.5.3 Crushed Pieces in AggregateOrders for material
20、 un-der this specification shall state the appropriate requirementsfor percentage of crushed pieces.5.3.1 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. (see Note 1 and Note 2)5.3.2 OpenGraded Friction Cou
21、rse Mixtures, of the aggre-gate pieces retained on the 4.75-mm (No. 4) sieve, not less than90 %, by mass, shall have one or more fractured faces and notless than 75 %, by mass shall have two or more fractured faces.NOTE 1Attention is called to the distinction between conventional(dense mixtures or o
22、pen mixtures) and open-graded friction coursemixtures in Specification D 3515.NOTE 2Some sources of 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 consi
23、dered as crushed.5.4 Polishing CharacteristicsThe coarse aggregates, orthe coarsest fraction of the aggregate for use in surface coursemixtures, shall be of a type known to possess adequateresistance to polishing action of the anticipated traffic (see Note3).NOTE 3No ASTM test method has been recogn
24、ized to be capable ofdefining adequate resistance to the polishing action of specific trafficconditions. Test Method D 3319 has been found useful in evaluating therelative polish resistance between samples of different aggregates ormixtures containing different aggregates.5.5 SoundnessThe coarse agg
25、regate, when subjected tofive cycles of the soundness test, shall have a weighted loss notgreater than 12 % when sodium sulfate is used or 18 % whenmagnesium sulfate is used (see Note 4). If the salt is notdesignated by the purchaser, the aggregate shall be consideredto be in compliance with this sp
26、ecification if it meets theindicated limit for either salt used.5.6 DegradationAggregate subjected to testing in accor-dance with Test Method C 131 shall have a loss not greaterthan 40 % for surface courses or 50 % for base courses (seeNote 4).NOTE 4Coarse aggregate failing to meet the requirements
27、of 5.5 or5.6 may be considered for use provided that (1) similar aggregates fromthe same source have been shown by experience, to the satisfaction of thepurchaser, to result in satisfactory pavement and (2) the results of othertests indicate that the desired performance can be obtained. Aggregatefro
28、m a new source that fails the requirements of 5.5 or 5.6 and for whichno experience exists, may be considered acceptable provided the results ofthe other relevant laboratory tests indicate that the desired performancecan be obtained.5.7 ExpansionAggregates that contain components sub-ject to hydrati
29、on shall be obtained from sources approved bythe purchaser on the basis of either satisfactory performancerecord, aging, or other treatment known to reduce potentialexpansion to a satisfactory level (see Note 5).NOTE 5Test Method D 4792 has been used to evaluate the potentialfor expansion of dense g
30、raded materials.5.8 Environmental StabilityAggregates shall be evaluatedfor environmental considerations (air quality, water quality,and storage) using the required local, state, and federal testmethods in effect at the time of use.5.8.1 Aggregates that exhibit a potential for producingleachates sha
31、ll be tested using the Toxicity CharacteristicLeaching Procedure (EPAMethod SW846 1311) or appropriatetest method as approved by the purchaser. Results shallindicate that all areas tested (metals, volatiles, semivolatiles,and organics) are below regulatory limits.5.8.2 The aggregate shall meet all a
32、pplicable local, state,and federal environmental requirements in effect at the time ofuse.5.9 Special RequirementsEvaluation will be required, butnot exclusive of, the following items, when specified by thepurchaser: the potential for stripping, friable particles.6. Methods of Sampling and Testing6.
33、1 Sample the aggregates and determine the propertiesenumerated in this specification in accordance with the follow-ing methods:3Available from Department of Commerce, National Technical InformationCenter, 5285 Port Royal Road, Springfield, VA 22151. Order Number: EPASW-846.3.3.D61550626.1.1 Random S
34、amplingSee Practice D 3665.6.1.2 SamplingSee Practice D75.6.1.3 GradingSee Test Method C 136.6.1.4 Unit WeightSee Test Method C 29/C 29M.6.1.5 SoundnessSee Test Method C88.6.1.6 DegradationSee Test Method C 131.6.1.7 ExpansionSee Test Method D 4792.6.1.8 Friable ParticlesSee Test Method C 142.6.1.9
35、CoatingSee Test Method D 2489.6.1.10 Adherent CoatingsSee Test Method D 5711.6.1.11 Crushed CountSee Test Method D 5821.6.1.12 LeachingSee EPA Test Method SW846 1311.6.1.13 StrippingSee Test Method D 4867/D 4867M.7. Keywords7.1 bituminous paving; coarse aggregate; nontraditional ag-gregate; paving m
36、ixtures; recycled aggregateASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infri
37、ngement 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 five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standar
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39、s 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).D6155063
