ASTM_C_141_-_C_141M_-_14.pdf

Designation:C141/C141M14Standard Specification forHydrated Hydraulic Lime for Structural Purposes1This standard is issued under the fixed designation C141/C141M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers hydrated hydraulic lime forstructural purposes.1.2 Hydrated hydraulic lime may be used in the scratch orbrown coat of plaster,stucco,mortar,or in portland-cementconcrete either as blend,amendment,or admixture.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.Within the text,theinch-pound units are shown in brackets.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 The following precautionary caveat pertains only to thetest method portion,Section 11 of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 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)C109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars(Using 2-in.or 50-mm CubeSpecimens)C110 Test Methods for Physical Testing of Quicklime,Hydrated Lime,and LimestoneC187 Test Method for Amount of Water Required for Nor-mal Consistency of Hydraulic Cement PasteC191 Test Methods for Time of Setting of Hydraulic Cementby Vicat NeedleC230/C230M Specification for Flow Table for Use in Testsof Hydraulic CementC270 Specification for Mortar for Unit MasonryC305 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC778 Specification for SandC1271 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-AtomicEmission Spectroscopy(ICP)and Atomic Absorption(AA)3.Terminology3.1 DefinitionsFor definitions of terms related to thisspecification,see Terminology C51.3.2 Definitions of Terms Specific to This Standard:3.2.1 hydrated hydraulic lime,nthe product resultingfrom the slaking of hydraulic quicklime generally to a powder,without any addition,and with or without grinding.It has theproperty of setting and hardening under water and by reactionof carbon dioxide from the air.The hydraulic properties of thismaterial comes only from the composition of the raw materials.3.2.2 hydraulic quicklime,na cementitious product ob-tained by calcining argillaceous or siliceous limestone,or amixture of similar composition to form sufficient free lime topermit hydration by slaking.3.2.3 reworkability,nthe ability of a material which hassetting and hardening properties to be remixed after a givenperiod without significantly compromising the final hardenedproperties of the material.3.2.4 period of reworkability,nthe length of time amaterial can be reworked after initial mixing;it shall beexpressed in hours.NOTE1Hydrated hydraulic limes have a long working time lasting upto 24 h.The user should seek advice from the producer as to maximumworking time.1This specification is under the jurisdiction of ASTM Committee C07 on Limeand Limestone and is the direct responsibility of Subcommittee C07.02 onSpecifications and GuidelinesCurrent edition approved Dec.1,2014.Published December 2014.Originallyapproved in 1938.Last previous edition approved in 2009 as C141/C141M 09.DOI:10.1520/C0141_C0141M-14.2For 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 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 4.Chemical Composition4.1 The hydrated hydraulic lime shall conform to thefollowing requirements as to chemical composition,calculatedto the LOI-free basis:MinMaxCalcium and magnesium oxides(CaO and MgO calcu-lated to the LOI-free basis),%5075Silica(SiO2calculated to the LOI-free basis),%420Iron and aluminum oxides(Fe2O3and Al2O3caculated to the LOI-free basis),%.7Carbon dioxide(CO2on an as received basis),%.16Available lime(CaO calculated with Test MethodsC25 11,Section 28,Av