1、Designation:C510Standard Specification forQuicklime for Structural Purposes1This standard is issued under the fixed designation C5;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indic
2、ates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This specification covers all classes of quicklime such ascrushed lime,granular lime,g
3、round lime,lump lime,pebblelime,and pulverized lime,used for structural purposes.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 onlyand are not considered standard.1.3 T
4、his 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 to use.2.Referenced Documents2
5、.1 ASTM Standards:2C25 Test Methods for Chemical Analysis of Limestone,Quicklime,and Hydrated 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 Test
6、ing of Quicklime,Hydrated Lime,and LimestoneC1489 Specification for Lime Putty for Structural PurposesE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3.Terminology3.1 DefinitionsUnless otherwise specified,for definitionsof terms used in this standard,refer to Terminology C51.4.Chemic
7、al Composition4.1 The quicklime shall conform to the following require-ments as to chemical composition,calculated on a nonvolatilebasis:Calcium LimeMagnesium LimeCalcium oxide,min,%75Magnesium oxide,min,%20Calcium and magnesium oxide,min,%9595Silica,alumina,and oxide of iron,max,%55Carbon dioxide,m
8、ax,%:If sample is taken at place ofmanufacture33If sample is taken at any otherplace10105.Residue5.1 The quicklime shall contain no more than 15 weight%of residue.6.General Requirements6.1 Quicklime shall be slaked and aged in accordance withthe printed directions of the manufacturer.The resulting l
9、imeputty shall be stored until cool.6.2 Lime putty prepared in accordance with AppendixX1.4.2 must conform to the requirements of SpecificationC1489.7.Sampling,Inspection,etc.7.1 Thesampling,inspection,rejection,retesting,packaging,and marking shall be conducted in accordance withMethods C50.8.Test
10、Methods8.1 Conformance to chemical requirements shall be deter-mined in accordance with Test Methods C25.8.2 Conformance to residue requirements shall be deter-mined in accordance with Test Methods C110.9.Keywords9.1 building(structural);calcium oxide;dolomitic lime;high calcium lime;lime putty;magn
11、esium oxide;plasticity;quicklime;residue;slaking1This specification is under the jurisdiction of ASTM Committee C07 on Limeand is the direct responsibility of Subcommittee C07.02 on Specifications andGuidelines.Current edition approved June 1,2010.Published July 2010.Originally approvedin 1913.Last
12、previous edition approved in 2009 as C503(2009).DOI:10.1520/C0005-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM websi
13、te.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 APPENDIX(Nonmandatory Information)X1.SLAKING AND PREPARATION OF LIME PUTTYX1.1 IntroductionX1.1.1 Quicklime can never be used as such for structuralpurposes;it must always be slaked first
14、.Since the method ofslaking is an important factor in determining the quality of thefinished product,the following directions for the preparation oflime putty are given,not as a part of the specification,but asinformation for the further protection of the purchaser.X1.1.2 Different kinds of lime var
15、y considerably in the wayin which they behave with water.A little supervision over theoperation of slaking will amply pay for itself by ensuring theproduction of the greatest possible quantity and the bestpossible quality of putty.To find out how to slake a new lot oflime,it is safest to try a littl
16、e of it and see how it works.Sincedifferent lots of the same brand of lime vary somewhat,andsince the weather conditions at the time have a decidedinfluence,it is wise to try a sample from each lot used,whetherfamiliar with the brand or not.X1.2 Classification of LimesX1.2.1 In a bucket,put two or three lumps of lime about thesize of ones fist,or,in the case of granular lime,an equivalentamount.Add sufficient water to just barely cover the lime,andnote how long it takes for slaking to begin.Slak
