1、Designation:C1840/C1840M17Standard Practice forInspection and Acceptance of Installed Reinforced ConcreteCulvert,Storm Drain,and Storm Sewer Pipe1This standard is issued under the fixed designation C1840/C1840M;the number immediately following the designation indicates theyear of original adoption o
2、r,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers the requirements for inspection andacceptance of installed reinf
3、orced concrete pipe by eitherperson-entry,or remote inspection as shown in Figs.1 and 2,respectively.1.2 The scope of this specification is intended for installa-tion related observations and assumes that pre-installationinspection has been completed.1.3 The reinforced concrete culvert,storm drain a
4、nd stormsewer pipe shall be manufactured in accordance with Specifi-cation C76,C506,C507,C655,or C1417 and accepted inaccordance with AASHTO R073.This specification shall onlybe used for gravity,non-pressure storm drainage applications.1.4 Person Entry shall be used unless extenuating circum-stances
5、 preclude this type inspection.Remote inspection isacceptable for use for pipe diameters of 30 in.750 mm andsmaller unless otherwise specified by owner or engineer.1.5 Access of installed pipe for manual inspection shallfollow OSHA 29 CFR PART 1926 SUBPART AA regulationsfor confined space entry.Howe
6、ver,this standard does notpurport to address all of the safety concerns,if any,associatedwith its use.It is the responsibility of the user of this standardto establish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This practice do
7、es not cover deformation or deflectionassessment.Concrete pipe is classified as a rigid structurebecause they do not bend or deflect appreciably under loadbefore cracking.Due to these facts shape evaluation are of littleor no value when evaluating concrete pipe.1.7 The values stated in either Imperi
8、al/US or SI units areto be regarded separately as standard.The SI units are shownin brackets.The values stated in each system may not be exactequivalents;therefore,each system shall be used independentlyof the other.1.8 This international standard was developed in accor-dance with internationally re
9、cognized 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 TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:C76 Specification for R
10、einforced Concrete Culvert,StormDrain,and Sewer PipeC506 Specification for Reinforced Concrete Arch Culvert,Storm Drain,and Sewer PipeC507 Specification for Reinforced Concrete EllipticalCulvert,Storm Drain,and Sewer PipeC655 Specification for Reinforced Concrete D-LoadCulvert,Storm Drain,and Sewer
11、PipeC822 Terminology Relating to Concrete Pipe and RelatedProductsC1417 Specification for Manufacture of Reinforced Con-crete Sewer,Storm Drain,and Culvert Pipe for DirectDesignD932 Practice for Filamentous Iron Bacteria in Water andWater-Formed Deposits2.2 AASHTO Standards:AASHTO LRFD Bridge Design
12、 SpecificationAASHTO LRFD Bridge Construction Specification,Section27AASHTO PP63 Standard Practice for Pipe Joint Selectionfor Highway Culvert and Storm DrainsAASHTO R073 Standard Practice for Evaluation of PrecastConcrete Drainage Products2.3 Occupational Safety and Health Standards:OSHA 29 CFR Par
13、t 1926 Subpart AA for the ConstructionIndustry2.4 ISO/IEC Standards:ISO/IEC 17025 General Requirements for the Competenceof Testing and Calibration Laboratories3.Terminology3.1 For definitions of other terms relating to concrete pipenot defined in this specification,see Terminology C822.1This test m
14、ethod is under the jurisdiction of ASTM Committee C13 onConcrete Pipe and is the direct responsibility of Subcommittee C13.05 on SpecialProjects.Current edition approved April 15,2017.Published April 2017.DOI:10.1520/C1840_C1840M-17Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West
15、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 O
16、rganization Technical Barriers to Trade(TBT)Committee.1 3.2 Definitions:3.2.1 calcium carbonate crystalsas shown in Fig.3,crystals are formed when the carbon dioxide in the surroundingsoil,air and water carbonates the free(un-hydrated)calciumoxide in the cement and the calcium hydroxide liberated by thehydration of the tricalcium silicate of the cement.This chemi-cal process results in white crystals along the pipe wall at acrack location and if it fills the crack is commonly referred toas autog
