ASTM C1587-2009 Standard Practice for Preparation of Field Removed Manufactured Masonry Units and Masonry Specimens for Testing《测试用现场可移动生产砖石装置和砌块样本制备的标准实施规程》.pdf
《ASTM C1587-2009 Standard Practice for Preparation of Field Removed Manufactured Masonry Units and Masonry Specimens for Testing《测试用现场可移动生产砖石装置和砌块样本制备的标准实施规程》.pdf》由会员分享,可在线阅读,更多相关《ASTM C1587-2009 Standard Practice for Preparation of Field Removed Manufactured Masonry Units and Masonry Specimens for Testing《测试用现场可移动生产砖石装置和砌块样本制备的标准实施规程》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C 1587 09Standard Practice forPreparation of Field Removed Manufactured Masonry Unitsand Masonry Specimens for Testing1This standard is issued under the fixed designation C 1587; the number immediately following the designation indicates the year oforiginal adoption or, in the case of r
2、evision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 The purpose of this practice is to standardize thepreparation of manufactured masonry units and
3、masonry speci-mens extracted from the field for compressive and flexuralbond strength testing in a laboratory environment.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information
4、 onlyand are not considered 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 of this standard to establish appro-priate safety and health practices and to determine theapplicability of regulatory li
5、mitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Sampling and Testing Brick andStructural Clay TileC 140 Test Methods for Sampling and Testing ConcreteMasonry Units and Related UnitsC 1072 Test Method for Measurement of Masonry FlexuralBond StrengthC 1180 Termin
6、ology of Mortar and Grout for Unit MasonryC 1232 Terminology of MasonryC 1314 Test Method for Compressive Strength of MasonryPrismsC 1532 Practice for Selection, Removal, and Shipment ofManufactured Masonry Units and Masonry Specimensfrom Existing Construction3. Terminology3.1 Definitions: For defin
7、itions of terms used in this prac-tice, refer to Terminologies C 1180 and C 1232.4. Significance and Use4.1 Masonry units and masonry specimens are sometimesremoved as part of an assessment of the condition of masonryconstruction. This document is intended to standardize thepreparation of such units
8、 and masonry specimens for compres-sive and flexural bond strength testing.NOTE 1Masonry specimens removed from existing masonry con-struction (single wythe, multi-wythe or portions thereof) will sometimescontain mortar, grout, reinforcement, or accessory materials.4.2 This practice provides informa
9、tion pertaining to theremoval of hardened mortar, cleaning, and other specialpreparation required prior to compressive and flexural bondstrength testing of a manufactured masonry unit or masonryspecimen that has been removed from usage.4.3 This practice does not address test procedures or the useof
10、test results conducted on removed specimens. This practicedoes not determine whether removed masonry materials metoriginal specification requirements.NOTE 2Compressive and flexural bond strength test results of ma-sonry units and masonry specimens extracted from the field are expectedto vary from an
11、d will likely be less than test results of masonry units thathave not been placed in service or masonry prisms that have beenconstructed within a controlled environment. Comparison of results oftests conducted on specimens removed from service to those of masonryunits prior to use or of constructed
12、prisms is difficult. Considerablejudgment is typically required for the selection and preparation ofspecimens removed from service.5. Inspection of Specimens5.1 Specimens shall be selected, removed from service, andshipped in accordance to Practice C 1532.5.2 Carefully remove specimens from transpor
13、tation pack-aging. Visually inspect specimens. Compare received speci-mens with visual assessment as reported under PracticeC 1532. Note additional damage, if any, contained within eachspecimen.1This practice is under the jurisdiction of ASTM Committee C15 on Manufac-tured Masonry Units and is the d
14、irect responsibility of Subcommittee C15.04 onResearch.Current edition approved June 1, 2009. Published June 2009. Originallyapproved in 2004. Last previous edition approved in 2006 as C 1587 062For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at s
15、erviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,
16、United States.5.2.1 If specimen shipment does not include a visual assess-ment report, note the report as missing as part of the subse-quent test report and document condition of each specimen asreceived.5.3 Take photographs of specimens as received to documentcondition prior to any preparation for
17、testing.6. Preparation for Compressive Strength Testing6.1 Preparation of Units and Prisms:6.1.1 Unless required by the testing procedure that will besubsequently used to evaluate the specimen, do not oven drythe test specimens.6.1.2 Remove all unsound material and smooth irregulari-ties of the unit
18、s or masonry specimens bearing surfaces usinga method that will not affect the integrity of the unit or masonryspecimen to produce a test specimen, either a unit or a prism,that is no more than18 in. (3 mm) out of level over 12 in. (305mm) and no more than18 in. (3 mm) out of plumb over 12 in.(305 m
19、m).6.1.3 Test specimens are subsequently capped to provide alevel-bearing surface for compressive strength testing. There-fore, it is not necessary to remove portions of hardened mortarin recesses of masonry.6.1.4 Ungrouted masonry specimens are particularly sus-ceptible to damage during handling an
20、d preparation for testing.Use care to limit the potential damage to the bond betweenmortar and manufactured masonry units in the masonry speci-men.6.1.5 If necessary, remove sound material to produce a moresuitable test specimen.6.1.6 If possible, avoid producing test specimens containingunsupported
21、 protrusions (from face shells or webs of hollowunits) whose lengths are more than twice their thickness.6.1.7 If possible, avoid saw-cuts that reduce the thickness ofthe webs and face shells of hollow units or prisms.6.1.8 If possible, prepare test specimens to minimize varia-tions in length and wi
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