ASTM_D_692_-_D_692M_-_15.pdf

Designation:D692/D692M15Standard Specification forCoarse Aggregate for Bituminous Paving Mixtures1This standard is issued under the fixed designation D692/D692M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,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.1.Scope1.1 This specification covers crushed stone,crushedhydraulic-cement concrete,crushed blast-furnace slag,crushedgravel,crushed expanded shale,crushed expanded clay,andcrushed expanded slate suitable for use in bituminous pavingmixtures,as described in Specifications D3515 or D4215.NOTE1Other slags having demonstrated a satisfactory service recordmay be used.1.2 The values stated 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 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.2.Referenced Documents2.1 ASTM Standards:2C29/C29M Test Method for Bulk Density(“Unit Weight”)and Voids in AggregateC88 Test Method for Soundness of Aggregates by Use ofSodium Sulfate or Magnesium SulfateC125 Terminology Relating to Concrete and Concrete Ag-gregatesC131 Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the LosAngeles MachineC136 Test Method for Sieve Analysis of Fine and CoarseAggregatesC294 Descriptive Nomenclature for Constituents of Con-crete AggregatesD8 Terminology Relating to Materials for Roads and Pave-mentsD75 Practice for Sampling AggregatesD448 Classification for Sizes of Aggregate for Road andBridge ConstructionD3319 Practice for the Accelerated Polishing of AggregatesUsing the British WheelD3515 Specification for Hot-Mixed,Hot-Laid BituminousPaving Mixtures(Withdrawn 2009)3D3665 Practice for Random Sampling of Construction Ma-terialsD4215 Specification for Cold-Mixed,Cold-Laid BituminousPaving MixturesD5821 Test Method for Determining the Percentage ofFractured Particles in Coarse Aggregate3.Terminology3.1 For defining aggregate types,see Descriptive Nomen-clature C294,and Terminology D8 and C125.3.2 Definitions:3.2.1 expanded shale,n;expanded clay,n;expanded slate,nthe product resulting from the expanding of selectedmaterials(shale,clay,or slate)in a rotary kiln at temperaturesover 1000C 1832F.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 to be furnished(see 5.2).4.1.3 The quantity required.4.1.4 Use of the coarse aggregate,whether for conventionalmixtures or open-graded friction course mixtures(see 5.4),andwhether for surface courses or base courses(see 5.7),4.1.5 In the case of sulfate soundness tests(5.6),which saltis to be used.4.1.6 Any special requirements.1This 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 June 1,2015.Published July 2015.Originally approvedin 1942.Last previous edition approved in 2014 as D692/D692M 09(2014).DOI:10.1520/D0692_D0692M-15.2For 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 Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.Physical Requirements5.1 GeneralThe coarse aggregate shall consist of hard,strong,durable pieces,free of coherent coatings and conform-ing to the requirements of this specification.5.2 Grading:5.2.1 The coarse aggregate grading shall conform to therequirements of Classification D448 for the size numberdesignated,or to another grading as stated in the order(seeNote 2).NOTE2The coarse aggregate grading to be furnished is dependentupon the desired composition 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 combinedaggregate and filler,when used,will produce a paving mixture thatprovides the desired characteristics.5.2.2 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.5.3 Density:5.3.1 SlagAir-cooled blast-furnace-slag coarse a