1、Designation:C5517Standard Specification forConcrete Building Brick1This standard is issued under the fixed designation C55;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the
2、 year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification covers solid,dry-cast,concrete build-ing brick intended for interior a
3、nd exterior use in constructingstructural masonry,and are made from portland cement,water,and suitable mineral aggregates with or without the inclusionof other materials.NOTE1Specification C1634 addresses concrete facing brick used infacing applications and other exposures(previously referred to in
4、earliereditions of this standard as Grade Nfor use as architectural veneer andfacing units in exterior walls and for use where high-strength andresistance to moisture penetration and severe frost action are desired).Thisspecification differs from C1634 in that it addresses properties for concretebui
5、lding brick used in non-facing,utilitarian applications(previouslyreferred to in earlier editions of this specification as Grade Sfor generaluse where moderate strength and resistance to frost action and moisturepenetration are required).1.2 The text of this specification references notes andfootnot
6、es which provide explanatory material.These notes andfootnotes(excluding those in tables and figures)shall not beconsidered as requirements of the standard.1.3 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation only.NOTE2Concret
7、e building brick covered by this specification aremade from lightweight or normal weight aggregates,or both.NOTE3When particular features are desired,such as densityclassification,high compressive strength,surface textures for appearanceor bond,finish,color,fire resistance,insulation,acoustical prop
8、erties,orother special features,such properties should be specified separately bythe purchaser.Suppliers should be consulted as to the availability ofconcrete building brick having the desired features.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parent
9、heses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment
10、 of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C33 Specification for Concrete AggregatesC140 Test Methods for Sampling and Testing ConcreteMasonry Units and Related Unit
11、sC150 Specification for Portland CementC331 Specification for Lightweight Aggregates for ConcreteMasonry UnitsC426 Test Method for Linear Drying Shrinkage of ConcreteMasonry UnitsC595 Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan f
12、or Use in ConcreteC989 Specification for Slag Cement for Use in Concrete andMortarsC1157 Performance Specification for Hydraulic CementC1232 Terminology of MasonryC1634 Specification for Concrete Facing Brick3.Terminology3.1 Terminology defined in Terminology C1232 shall applyfor this specification.
13、3.2 Definitions of Terms Specific to This Standard:3.2.1 concrete building brick,na concrete masonry unit,with a maximum width of four(4)inches and of a weight thatwill typically permit it to be lifted and placed with one hand,that is manufactured for general use in non-facing,utilitarianapplication
14、s.3.2.2 concrete facing brick,na concrete masonry unit,with a maximum width of four(4)inches and of a weight thatwill typically permit it to be lifted and placed with one hand,1This specification is under the jurisdiction of ASTM Committee C15 onManufactured Masonry Units and is the direct responsib
15、ility of SubcommitteeC15.03 on Concrete Masonry Units and Related Units.Current edition approved June 1,2017.Published July 2017.Originally approvedin 1924.Last previous edition approved in 2016 as C55 16.DOI:10.1520/C0055-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orconta
16、ct 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 International,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 the
