ASTM C1489-2001 Standard Specification for Lime Putty for Structural Purposes《结构用石灰膏标准规范》.pdf

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1、Designation: C 1489 01Standard Specification forLime Putty for Structural Purposes1This standard is issued under the fixed designation C 1489; 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 p

2、arentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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

3、 stucco applications.1.2 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 determine the applica-bility of regulatory limitations prior t

4、o use.2. Referenced Documents2.1 ASTM Standards:C 5 Quicklime for Structural Purposes2C 25 Test Methods for Chemical Analysis of Limestone,Quicklime and Hydrated Lime2C 50 Practice for Sampling, Sample Preparation, Packagingand Marking of Lime and Limestone Products2C 51 Terminology Relating to Lime

5、 and Limestone (as usedby the Industry)2C 110 Test Methods for Physical Testing of Quicklime,Hydrated Lime and Limestone2C 185 Test Method for Air Content of Hydraulic CementMortar2C 206 Finishing Hydrated Lime2C 207 Hydrated Lime for Masonry Purposes23. Terminology3.1 Definitions:3.1.1 lime puttyth

6、e 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 definitions of termsused in this standard, refer to Terminology C 51.4. Chemical Composition4.

7、1 The hydrated lime or quicklime products used to makelime putty shall conform to the following chemical composi-tion requirements:Calcium and magnesium oxides (non volatile basis) 92 % min.Carbon dioxide (presoaked basis)If sample is taken at place of manufacture 5 % max.If sample is taken at other

8、 place 7 % max.4.2 Chemical composition of putty product of unknowncomposition must be determined by drying the sample in a CO2free atmosphere by a method such as Test Methods C 25,Section 21, (Free Moisture in Hydrated Lime).5. Plasticity5.1 Lime putty shall have a plasticity of not less than 200Em

9、ley units when tested by the Emley method prescribed inTest Methods C 110. Vicat consistency of the putty should beadjusted to a penetration of 20 6 5 mm prior to running theEmley test. If penetration results are above 25 mm, theconsistency of the putty can be increased by allowing the puttyto settl

10、e and decanting off the excess water or by the use of asuction pad such as the one used for the water retention test inTest Methods C 110. 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

11、 fora minimum of 15 s prior to testing the penetration.6. Residue6.1 Residue of lime putty shall not be more than 0.5 % on a30 mesh sieve on a total putty weight basis. The residue of limeputty should be determined by the method in Test MethodsC 110, Section 5, using an amount of lime putty equivale

12、nt toapproximately 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 dependent on the reactivity of the unhydrated oxidesused to

13、 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 at least 16 h prior to use.7.1.3 Lime putty made with Type S hydrated lime requiresenough soaking

14、 to wet the lime particles (minimum of 20min.).1This specification is under the jurisdiction of ASTM Committee C07 on Limeand is the direct responsibility of Subcommittee C07.02 on Structural Lime.Current edition approved Jan. 10, 2001. Published March 2001.2Annual Book of ASTM Standards, Vol 04.01.

15、1Copyright ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.8. Popping and Pitting8.1 Lime putty shall show no pops or pits when tested inaccordance with the method prescribed in Test Methods C 110.Vicat consistency of the lime putty should be adjusted to apenetration of

16、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 the one used for the water retention test inTest Method

17、s C 110. 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 density of the lime putty shall be no less than 80lbs

18、/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 C 185. Care should be takenwhen placing putty in the cup to minimize the entrapment ofair. The cup should be filled in three lifts, tamping after

19、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 C 110, Section 16.10. Sampling and Inspection10.1 The sampling, inspection, rejection, ret

20、esting, packag-ing, and marking shall be conducted in accordance withPractice C 50.11. Test Methods11.1 Determine the properties enumerated in this specifica-tion in accordance with the following methods:11.1.1 Chemical AnalysisTest Methods C 25.11.1.2 Physical AnalysisTest Methods C 110.12. Keyword

21、s12.1 finish lime; lime putty; masonry; plaster; plasticity;popping and pitting; residue; stucco; unhydrated oxidesThe American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connectionwith any item mentioned in this standard. Users of th

22、is standard are expressly advised that determination of the validity of any suchpatent rights, and the risk of infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five ye

23、ars andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsibletechnical committee, which yo

24、u may attend. If you feel that your comments have not received a fair hearing you should make yourviews known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website (www.astm.org).C 14892