ASTM C858-2018 Standard Specification for Underground Precast Concrete Utility Structures《地下预制混凝土设施结构标准规范》.pdf
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1、Designation: C858 101C858 18Standard Specification forUnderground Precast Concrete Utility Structures1This standard is issued under the fixed designation C858; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1 NOTEAir entrainment admixture information was moved editorially from subsection 5.3.3 to subsection 6.3.2 inNovember 2010.1. Scope1.1 This
3、specification covers the recommended design criteria and manufacturing practices for monolithic or sectional precastconcrete utility structures. Concrete pipe and box culverts are not covered under this specification.Also, precast concrete manholescovered in Specification C478 are excluded from this
4、 specification.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.3 This international standard was developed in accordance with int
5、ernationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A82/A
6、82M Specification for Steel Wire, Plain, for Concrete Reinforcement (Withdrawn 2013)3A184/A184M Specification for Welded Deformed Steel Bar Mats for Concrete ReinforcementA185/A185M Specification for Steel Welded Wire Reinforcement, Plain, for Concrete (Withdrawn 2013)3A496/A496M Specification for S
7、teel Wire, Deformed, for Concrete Reinforcement (Withdrawn 2013)3A497/A497M Specification for Steel Welded Wire Reinforcement, Deformed, for Concrete (Withdrawn 2013)3A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementA706/A706M Specification for Deformed and
8、 Plain Low-Alloy Steel Bars for Concrete ReinforcementA996/A996M Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete ReinforcementA1064/A1064M Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for ConcreteC31/C31M Practice for Making and Curing
9、 Concrete Test Specimens in the FieldC33 Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cylindrical Concrete SpecimensC42/C42M Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of ConcreteC94/C94M Specification for Ready-Mixed ConcreteC150 Spe
10、cification for Portland CementC192/C192M Practice for Making and Curing Concrete Test Specimens in the LaboratoryC231 Test Method for Air Content of Freshly Mixed Concrete by the Pressure MethodC260 Specification for Air-Entraining Admixtures for ConcreteC330 Specification for Lightweight Aggregates
11、 for Structural ConcreteC478 Specification for Circular Precast Reinforced Concrete Manhole SectionsC494/C494M Specification for Chemical Admixtures for ConcreteC595 Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concret
12、e1 This specification is under the jurisdiction of ASTM Committee C27 on Precast Concrete Products and is the direct responsibility of Subcommittee C27.10 on UtilityStructures.Current edition approved Feb. 15, 2010Jan. 1, 2018. Published February 2010January 2018. Originally approved in 1978. Last p
13、revious edition approved in 20092010as C858 09.C858 101. DOI: 10.1520/C0858-10E01.10.1520/C0858-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Docu
14、ment Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM r
15、ecommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1C857 Pract
16、ice for Minimum Structural Design Loading for Underground Precast Concrete Utility StructuresC989 Specification for Slag Cement for Use in Concrete and Mortars2.2 American Concrete Institute Standard:ACI 318 Building Code Requirements for Reinforced Concrete32.3 American Welding Society Standard:AWS
17、-D1.4 Structural Welding Code Reinforcing Steel43. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 utility structurea structure that is used by electric, gas, communication, or similar industries.4. Ordering Information4.1 Unless otherwise stipulated by the purchaser in his order
18、, a structure produced in accordance with this specification andconstructed in accordance with the design drawings approved by the purchaser shall be acceptable.5. Materials5.1 Cementitious Materials:5.1.1 CementCement shall conform to the requirements for Portland cement of Specification C150 or sh
19、all be Portlandblast-furnace slag cement or Portland-pozzolan cement conforming to the requirements of Specification C595, except that thepozzolan constituent in the Type IP Portland-pozzolan cement shall be fly ash.5.1.2 Fly AshFly ash shall conform to the requirements of Specification C618, Class
20、F or Class C.5.1.3 Ground Granulated Blast-Furnace Slag (GGBFS)GGBFS shall conform to the requirements of Grade 100 or 120 ofSpecification C989.5.1.4 Allowable Combinations of Cementitious MaterialThe combination of cementitious materials used in concrete shall beone of the following:5.1.4.1 Portlan
21、d cement only;5.1.4.2 Portland blast furnace slag cement only;5.1.4.3 Slag-modified Portland cement only;5.1.4.4 Portland-pozzolan cement only;5.1.4.5 A combination of Portland cement and fly ash;5.1.4.6 A combination of Portland cement and ground granulated blast-furnace slag;5.1.4.7 A combination
22、of Portland cement, ground granulated blast-furnace slag (not to exceed 25 %of the total cementitiousweight), and fly ash (not to exceed 25 % of the total cemenetitious weight).5.2 AggregatesAggregate shall conform to Specification C33 and light-weight aggregate shall conform to Specification C330,e
23、xcept that the requirements for grading shall not apply.5.3 AdmixturesAdmixtures may be used provided such admixtures are not injurious to other products used in the concrete.5.3.1 Chemical AdmixturesChemical admixtures shall conform to Specification C494/C494M.5.3.2 Fly Ash and Pozzolanic Admixture
24、Fly ash or other pozzolanic admixtures shall conform to Specification C618.5.3.3 Air-Entraining AdmixturesAir-entraining admixtures shall conform to Specification C260.5.4 WaterWater used for curing, washing aggregate, or mixing concrete shall be clean and free of injurious amounts of oil,acids, alk
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