1、Designation: C1489 15Standard Specification forLime Putty for Structural Purposes1This standard is issued under the fixed designation C1489; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in par
2、entheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers lime putty products made fromhydrated lime or quicklime products. Lime putty is suitable foruse in masonry, plaster and st
3、ucco applications.1.2 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.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
4、 to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C5 Specification for Quicklime for Structural PurposesC25 Test Methods for Chemical Analysis of Limestone,Quicklime, and Hydrated
5、LimeC50 Practice for Sampling, Sample Preparation, Packaging,and Marking of Lime and Limestone ProductsC51 Terminology Relating to Lime and Limestone (as usedby the Industry)C110 Test Methods for Physical Testing of Quicklime,Hydrated Lime, and LimestoneC185 Test Method for Air Content of Hydraulic
6、CementMortarC206 Specification for Finishing Hydrated LimeC207 Specification for Hydrated Lime for Masonry Pur-posesC1271 Test Method for X-ray Spectrometric Analysis ofLime and LimestoneC1301 Test Method for Major and Trace Elements in Lime-stone and Lime by Inductively Coupled Plasma-AtomicEmissio
7、n Spectroscopy (ICP) and Atomic Absorption(AA)3. Terminology3.1 Definitions:3.1.1 lime puttythe product obtained by either slakingquicklime with water according to the direction of the manu-facturer or by mixing hydrated lime and water to the desiredconsistency.3.1.2 Unless otherwise specified, for
8、definitions of termsused in this standard, refer to Terminology C51.4. Chemical Composition4.1 The hydrated lime or quicklime products used to makelime putty shall conform to the following chemical composi-tion requirements:Calcium and magnesium oxides (LOI-free basis), min % 92Carbon dioxide (preso
9、aked basis)If sample is taken at place of manufacture, max % 5If sample is taken at other place, max % 74.2 Chemical composition of putty product of unknowncomposition must be determined on a sample dried in a CO2free atmosphere.NOTE 1An apparatus to produce a dry, CO2free air stream isdescribed in
10、the section on Free Moisture in Hydrated Lime of TestMethods C25. Or use an inert atmosphere such as nitrogen.5. Plasticity5.1 Lime putty shall have a plasticity of not less than 200Emley units when tested by the Emley method in the section onPlasticity of Lime Putty in Test Methods C110. Vicat cons
11、is-tency of the putty should be adjusted to a penetration of 20 65 mm prior to running the Emley test. If penetration results areabove 25 mm, the consistency of the putty can be increased byallowing the putty to settle and decanting off the excess wateror by the use of a suction pad such as the one
12、used for the waterretention test in Test Methods C110. If the penetration is below15 mm, water should be added to the lime putty to increase thepenetration. When water is added to the putty, the putty shouldbe mixed for a minimum of 15 s prior to testing the penetration.6. Residue6.1 Residue of lime
13、 putty shall not be more than 0.5 % on a600 m (No. 30) sieve on a total putty weight basis. The1This specification is under the jurisdiction of ASTM Committee C07 on Limeand Limestone and is the direct responsibility of Subcommittee C07.02 onSpecifications and Guidelines.Current edition approved Jun
14、e 1, 2015. Published June 2015. Originallyapproved in 2001. Last previous edition approved in 2008 as C1489 01 (2008)1.DOI: 10.1520/C1489-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volu
15、me information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1residue of lime putty should be determined in accordance withthe section on Residue and Sieve Analysis of
16、Test MethodsC110, using an amount of lime putty equivalent to approxi-mately 100 g of solids.7. Soaking Period7.1 Lime putty made from quicklime or hydrated lime mustbe soaked for a period of time prior to use of the product. Theactual time required to ensure complete hydration of the limeputty is d
17、ependent on the reactivity of the unhydrated oxidescontained in the type of lime product used to make the putty.7.1.1 Lime putty made from quicklime must be soaked fora minimum of two weeks prior to use in construction applica-tions.7.1.2 Lime putty made with Type N hydrated lime must besoaked for a
18、t least 16 h prior to use.7.1.3 Lime putty made with Type S hydrated lime requiresenough soaking to wet the lime particles (minimum of 20 min).8. Popping and Pitting8.1 Lime putty shall show no pops or pits when tested inaccordance with the method prescribed in Test Methods C110.Vicat consistency of
19、 the lime putty should be adjusted to apenetration of 20 6 5 mm prior to running the popping andpitting test. If penetration results are above 25 mm, theconsistency of the putty can be increased by allowing the puttyto settle and decanting off the excess water or by the use of asuction pad such as t
20、he one used for the water retention test inTest Methods C110. If the penetration is below 15 mm, watershould be added to the lime putty to increase the penetration.When water is added to the putty, the putty should be mixed fora minimum of 15 s prior to testing the penetration.9. Density9.1 The wet
21、density of the lime putty shall be no less than 80lbs/ft3and not more than 90 lbs/ft3. The density of lime puttycan be measured in the 400 ml cylindrical cup described in theApparatus Section of Test Method C185. Care should be takenwhen placing putty in the cup to minimize the entrapment ofair. The
22、 cup should be filled in three lifts, tamping after eachlift to remove entrapped air. The top surface of the putty shouldbe struck and leveled with a metal spatula prior to weighing.The calculations used for the density determination can befound in Test Methods C110.10. Sampling and Inspection10.1 T
23、he sampling, inspection, rejection, retesting,packaging, and marking shall be conducted in accordance withPractice C50.11. Test Methods11.1 Determine the properties enumerated in this specifica-tion in accordance with the following methods:11.1.1 Chemical AnalysisTest Methods C25, or for totalcalciu
24、m and magnesium oxides Test Methods C1271 or C1301.11.1.2 Physical AnalysisTest Methods C110.12. Keywords12.1 finish lime; lime putty; masonry; plaster; plasticity;popping and pitting; residue; stucco; unhydrated oxidesASTM International takes no position respecting the validity of any patent rights
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