1、Designation:C1532/C1532M12Standard Practice forSelection,Removal,and Shipment of Manufactured MasonryUnits and Masonry Specimens from Existing Construction1This standard is issued under the fixed designation C1532/C1532M;the number immediately following the designation indicates theyear of original
2、adoption or,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.Scope*1.1 This practice covers the process of selection,removal,and shipment of maso
3、nry specimens from existing constructionthat are intended for testing.These specimens can be eitherindividual masonry units or assemblages.Assemblages are aportion of existing masonry,typically consisting of masonryunits,mortar,grout,reinforcing steel,collar joint,and masonryaccessories.The specimen
4、s may be taken from single-ormultiple-wythe construction,or portions thereof.This practicealso covers procedures for reporting as part of this process.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 exac
5、t equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user o
6、f this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2.Referenced Documents2.1 ASTM Standards:2C1180 Terminology of Mortar and Grout for Unit MasonryC1232 Terminology of MasonryE122 Practice for Calculating Sam
7、ple Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or Process3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this practice,refer toTerminologies C1180 and C1232.4.Significance and Use4.1 Masonry specimens are sometimes removed as part ofan asses
8、sment of the condition of masonry construction.Suchspecimens are commonly prepared for shipment to a laboratorywhere the specimens are assessed with visual techniques,petrographic techniques,or standard test methods.The processof selecting,removing,and shipping the specimens can have aneffect on tes
9、t results.This practice provides procedures forselecting,removing,and shipping masonry specimens re-moved from existing construction.4.2 The selection and removal processes described in thispractice are primarily intended for walls.Selection and re-moval of masonry specimens from locations other tha
10、n wallsrequires user judgment in order to obtain appropriate speci-mens.4.3 This practice also covers reporting of the selection,removal,and shipping processes.This information allowsinterested parties to assess the impact of these processes on testresults.4.4 This practice does not address the use
11、of test resultsconducted on removed masonry specimens.This practice doesnot determine whether the removed masonry materials metoriginal specification requirements.5.Selection and Removal5.1 Selection of Test Samples:5.1.1 Visual AssessmentPrior to selecting specimens forremoval,perform a visual surv
12、ey of the exposed surface toassess the in-place,undisturbed condition of the masonry walland other related construction.5.1.1.1 Record observations from the visual survey withphotographs or drawings,or both,that represent the appearanceof the masonry.Include sample locations identified in 5.2.5.1.1.
13、2 Conduct the visual assessment either over the wholeconstruction or on a representative sample of the whole.Examine locations with different exposures.1This practice is under the jurisdiction of ASTM Committee C15 on Manufac-tured Masonry Units and is the direct responsibility of Subcommittee C15.0
14、4 onResearch.Current edition approved June 1,2012.Published July 2012.Originally approvedin 2002.Last previous edition approved in 2006 as C153206.DOI:10.1520/C1532_C1532M-12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Ann
15、ual 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 States1 NOTE1Locations w
16、ith different exposures,such as walls exposed torain and walls protected from rain may be used to distinguish differentsegments of construction to be examined.5.1.2 SamplingSelect specimens representative of the en-tire masonry construction or a portion thereof.Sample by oneor more of the following techniques:NOTE2When sampling a portion of the entire construction consideraspects such as the orientation of the units(for example,stretcher,header,or soldier);location in the structure(for example,p
