ASTM_C_1328_-_C_1328M_-_12.pdf

Designation:C1328/C1328M12Standard Specification forPlastic(Stucco)Cement1This standard is issued under the fixed designation C1328/C1328M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers two types of plastic cement foruse in portland cement-based plasters for exterior(stucco)andinterior application.1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard.Thevalues stated in each system may not be exact equivalents;therefore,each system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the standard.Values in SI units shall beobtained by measurement in SI units or by appropriateconversion,using the Rules for Conversion and Roundinggiven in Standard IEEE/ASTM SI 10,of measurements madein other units.Values are stated in only SI units wheninch-pound units are not used in practice.1.3 The text of this standard refers to notes and footnotesthat provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.1.4 The following safety hazards caveat pertains only toSections 14 and 15.This standard does not purport to addressall of the safety concerns,if any,associated with its use.It isthe responsibility of the user of this standard to establishappropriate safety and health practices and determine theapplicabilityofregulatorylimitationspriortouse.(WarningFresh hydraulic cementitious mixtures are causticand may cause chemical burns to skin and tissue uponprolonged exposure.)22.Referenced Documents2.1 ASTM Standards:3C109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars(Using 2-in.or 50-mm CubeSpecimens)C151 Test Method for Autoclave Expansion of HydraulicCementC183 Practice for Sampling and the Amount of Testing ofHydraulic CementC185 Test Method for Air Content of Hydraulic CementMortarC187 Test Method for Amount of Water Required for Nor-mal Consistency of Hydraulic Cement PasteC188 Test Method for Density of Hydraulic CementC219 Terminology Relating to Hydraulic CementC266 Test Method for Time of Setting of Hydraulic-CementPaste by Gillmore NeedlesC305 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC430 Test Method for Fineness of Hydraulic Cement by the45-m(No.325)SieveC511 Specification for Mixing Rooms,Moist Cabinets,Moist Rooms,and Water Storage Tanks Used in theTesting of Hydraulic Cements and ConcretesC778 Specification for SandC926 Specification for Application of Portland Cement-Based PlasterC1506 Test Method for Water Retention of HydraulicCement-Based Mortars and PlastersIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units(SI)(the Modernized Metric System)3.Terminology3.1 DefinitionsTerms used in this specification are definedin Terminology C219 and Specification C926.3.2 Definitions of Terms Specific to This Standard:3.2.1 plastic cementa hydraulic cement,primarily used inportland cement-based plastering construction,consisting of a1This specification is under the jurisdiction of ASTM Committee C01 onCement and is the direct responsibility of Subcommittee C01.11 on MasonryCement.Current edition approved April 1,2012.Published May 2012.Originallyapproved in 1996.Last previous edition approved in 2005 as C1328 05.DOI:10.1520/C1328_C1328M-12.2Annual Book of ASTM Standards,Vol 04.01.See the section on SafetyPrecautions in the Manual of Cement Testing.3For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 mixture of portland or blended hydraulic cement and plasticiz-ing materials(such as limestone or hydrated or hydraulic lime),together with other materials introduced to enhance one ormore properties such as setting time,workability,waterretention,and durability.3.2.1.1 DiscussionThe term“plastic”does not refer to theinclusion of one or more organic components in the cement.The cement is predominantly inorganic in chemical composi-tion.The term“plastic”refers to the ability of the cement toimpart to the plaster a high degree of workability,and for theplaster to remain workable or plastic for a period of time sothat,after initial application and floating on the wall,it can bereworked to obtain both densification and desired texture.4.Physical Properties4.1 Plastic cement shall conform to the applicable require-ments prescribed in Table 1.5.Sampling5.1 At the option of the pu