ASTM C141 C141M-2014 Standard Specification for Hydrated Hydraulic Lime for Structural Purposes《建筑结构用水硬性熟石灰的标准规格》.pdf
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1、Designation: C141/C141M 09C141/C141M 14Standard 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 ye
2、ar 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 for structural purposes.1.2 Hydrated hydraulic lime may be us
3、ed in the scratch or brown coat of plaster, stucco, mortar, or in portland-cement concreteeither as blend, amendment, or admixture.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, theinch-pound units are shown in brackets.The va
4、lues stated in each system may not be exact equivalents; therefore, each system shallbe used independently of the other. Combining values from the two systems may result in non-conformance with the standard.1.4 The following precautionary caveat pertains only to the test method portion, Section 11 o
5、f this specification: This standarddoes not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use
6、.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 used by the Industry)C10
7、9/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens)C110 Test Methods for Physical Testing of Quicklime, Hydrated Lime, and LimestoneC187 Test Method for Amount of Water Required for Normal Consistency of Hydraulic Cement PasteC191 Test Metho
8、ds for Time of Setting of Hydraulic Cement by Vicat NeedleC230/C230M Specification for Flow Table for Use in Tests of Hydraulic CementC270 Specification for Mortar for Unit MasonryC305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic ConsistencyC778 Specification for
9、SandC1271 Test Method for X-ray Spectrometric Analysis of Lime and LimestoneC1301 Test Method for Major and Trace Elements in Limestone and Lime by Inductively Coupled Plasma-Atomic EmissionSpectroscopy (ICP) and Atomic Absorption (AA)3. Terminology3.1 DefinitionsFor definitions of terms related to
10、this specification, see Terminology C51.3.2 Definitions of Terms Specific to This Standard:3.2.1 hydrated hydraulic lime, nthe product resulting from the slaking of hydraulic quicklime generally to a powder, withoutany addition, and with or without grinding. It has the property of setting and harden
11、ing under water and by reaction of carbondioxide from the air. The hydraulic properties of this material comes only from the composition of the raw materials.3.2.2 hydraulic quicklime, na cementitious product obtained by calcining argillaceous or siliceous limestone, or a mixture ofsimilar compositi
12、on to form sufficient free lime to permit hydration by slaking.1 This specification is under the jurisdiction of ASTM Committee C07 on Lime and Limestone and is the direct responsibility of Subcommittee C07.02 on Specificationsand GuidelinesCurrent edition approved Oct. 1, 2009Dec. 1, 2014. Publishe
13、d November 2009December 2014. Originally approved in 1938. Last previous edition approved in 20052009as C141 97C141/C141M 09.(2005). DOI: 10.1520/C0141_C0141M-09.10.1520/C0141_C0141M-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceast
14、m.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becaus
15、eit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears
16、 at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2.3 reworkability, nthe ability of a material which has setting and hardening properties to be remixed after a given periodwithout significantly compromisin
17、g the final hardened properties of the material.3.2.4 period of reworkabilityreworkability, nthe length of time a material can be reworked after initial mixing; it shall beexpressed in hours.NOTE 1Hydrated hydraulic limes have a long working time lasting up to 24 h.The user should seek advice from t
18、he producer as to maximum workingtime.4. Chemical Composition4.1 The hydrated hydraulic lime shall conform to the following requirements as to chemical composition, calculated to thenonvolatileLOI-free basis:Min MaxCalcium and magnesium oxides (CaO and MgO calcu-lated to the nonvolatile basis), %50
19、75Calcium and magnesium oxides (CaO and MgO calcu-lated to the LOI-free basis), %50 75Silica (SiO2 calculated to the nonvolatile basis), % 4 20Silica (SiO2 calculated to the LOI-free basis), % 4 20Iron and aluminum oxides (Fe2O3 and Al2O3caculated to the nonvolatile basis), %. 7Iron and aluminum oxi
20、des (Fe2O3 and Al2O3caculated to the LOI-free basis), %. 7Carbon dioxide (CO2 on an as received basis), % . 16Available lime (CaO calculated with Test MethodsC25 Section 28), %16 .Available lime (CaO calculated with Test MethodsC25 11, Section 28, Available Lime Index), %16 .5. Fineness5.1 The sampl
21、e shall leave a residue of not more than 0.5 % on a 600-m No. 30 sieve(No. 30) sieve, and not more than 10 %on a 75-m No. 200(No. 200) sieve when tested as described in 11.2.6. Time of Setting6.1 The neat lime paste mixed to normal consistency shall not develop an initial set in less than 2 h as det
22、ermined by the Vicatneedle method (see 11.4). Final set shall be attained within 48 h at 100 % RH.7. Reworkability7.1 Test for reworkability as described in sectionsubsection 11.7.1. The average compressive strength value of the second setof cubes (set B) shall not be less than 30 % of the first set
23、 (set A).8. Soundness8.1 The samples when made, stored, and autoclaved as described in 11.5 shall not have an expansion of more than 1.0 %.9. Compressive Strength9.1 The average compressive strength of at least three 50-mm 2-in. cubes, made, stored, and tested in accordance with 11.6,shall be not le
24、ss than 1.7 N/mm2 250 psi and no more than 10.3 N/mm2 1500 psi at the age of 28 days.9.2 The producer shall state the compressive strength, when tested in accordance with 11.6, at the age of 28 days.9.3 The product shall be reworkable at 24 h as tested in accordance with 11.7.NOTE 2For quality contr
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