1、Designation:D512122Standard Practice forPreparation of Rock Slabs for Durability Testing1This standard is issued under the fixed designation D5121;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in
2、parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This practice covers the preparation of rock slabs forvarious tests and any visual inspections used to evaluate thedurability of rock for erosion co
3、ntrol.These tests include,butare not limited to,Test Methods D5240/D5240M,D5312/D5312M,and D5313/D5313M.This practice is appropriate forthe assessment of breakwater stone,armor stone,riprap,andgabion sized rock materials.1.2 UnitsThe values stated in SI units are to be regardedas standard.The inch-p
4、ound units given in parentheses are forinformation only.1.3 All observed and measured values shall conform to theguidelines for significant digits and rounding established inPractice D6026,unless superseded by this standard.1.4 This practice offers a set of instructions for performingone or more spe
5、cific operations.This document cannot replaceeducation or experience and should be used in conjunctionwith professional judgment.Not all aspects of this practice maybe applicable in all circumstances.This ASTM standard is notintended to represent or replace the standard of care by whichthe adequacy
6、of a given professional service must be judged,nor should this document be applied without consideration ofa projects many unique aspects.The word“Standard”in thetitle of this document means only that the document has beenapproved through the ASTM consensus process.1.5 This standard does not purport
7、 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.For a specific hazards statement,see S
8、ection 7.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBar
9、riers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD4992 Practice for E
10、valuation of Rock to be Used forErosion ControlD5240/D5240M Test Method for Evaluation of the Durabil-ity of Rock for Erosion Control Using Sodium Sulfate orMagnesium SulfateD5312/D5312M Test Method for Evaluation of Durability ofRock for Erosion Control Under Freezing and ThawingConditionsD5313/D53
11、13M Test Method for Evaluation of Durability ofRock for Erosion Control Under Wetting and DryingConditionsD6026 Practice for Using Significant Digits and Data Re-cords in Geotechnical Data3.Terminology3.1 DefinitionsFor definitions of common technical termsused in this standard,refer to Terminology
12、D653.3.2 Definitions of Terms Specific to This Standard:3.2.1 rock saw,na saw capable of cutting rock.The term“rock saw”shall include the blade which saws the rock,anycomponents that control or power the sawing process or both,and framework on which the blade and any other associatedcomponents are m
13、ounted.3.2.1.1 DiscussionA rock saw may be a water-cooleddiamond blade or diamond wire saw.3.2.2 slab,na section of rock having two smooth,ap-proximately parallel faces,produced by two saw cuts.Thethickness of the slab is generally less than the other dimensions1This practice is under the jurisdicti
14、on of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.17 on Rock for ErosionControl.Current edition approved Jan.1,2022.Published January 2022.Originallyapproved in 1990.Last previous edition approved in 2015 as D512115.DOI:10.1520/D5121-22.2For referenced AST
15、M 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM Inter
16、national,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1of the rock.The slab will be the specimen of a rock which willsubsequently undergo durability tes
