1、Designation: C989/C989M 18Standard Specification forSlag Cement for Use in Concrete and Mortars1This standard is issued under the fixed designation C989/C989M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revisi
2、on. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification covers slag cement for
3、use as acementitious material in concrete and mortar.NOTE 1The material described in this specification may be used forblending with portland cement to produce a cement meeting the require-ments of Specification C595/C595M or as a separate ingredient inconcrete or mortar mixtures. The material may a
4、lso be useful in a varietyof special grouts and mortars, and when used with an appropriateactivator, as the principal cementitious material in some applications.NOTE 2Information on technical aspects of the use of the materialdescribed in this specification is contained in Appendix X1, Appendix X2,a
5、nd Appendix X3. More detailed information on that subject is containedin ACI 233R-03.21.2 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 eq
6、uivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard. Values are stated in only SI units wheninch-pound units are not used in practice.1.3 The text of this standard references notes and footnote
7、sthat provide explanatory information. These notes and foot-notes (excluding those in tables) shall not be considered asrequirements of this standard.1.4 The following safety hazards caveat pertains only to thetest methods described in this specification. This standard doesnot purport to address all
8、 of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety, health, and environ-mental practices and determine the applicability of regulatorylimitations prior to use.1.5 This international standard was developed in a
9、ccor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1
10、ASTM Standards:3C109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm CubeSpecimens)C114 Test Methods for Chemical Analysis of HydraulicCementC125 Terminology Relating to Concrete and Concrete Ag-gregatesC150/C150M Specification for Portland CementC185 Test
11、 Method for Air Content of Hydraulic CementMortarC188 Test Method for Density of Hydraulic CementC204 Test Methods for Fineness of Hydraulic Cement byAir-Permeability ApparatusC430 Test Method for Fineness of Hydraulic Cement by the45-m (No. 325) SieveC452 Test Method for Potential Expansion of Port
12、land-Cement Mortars Exposed to SulfateC465 Specification for Processing Additions for Use in theManufacture of Hydraulic CementsC595/C595M Specification for Blended Hydraulic CementsC670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsC1012/C1012M Test
13、Method for Length Change ofHydraulic-Cement Mortars Exposed to a Sulfate SolutionC1038/C1038M Test Method for Expansion of HydraulicCement Mortar Bars Stored in WaterC1437 Test Method for Flow of Hydraulic Cement MortarC1778 Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Con
14、creteD3665 Practice for Random Sampling of Construction Ma-terials1This specification is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.27 on Ground Slag.Current edition approved March 15, 2018. Published April 2018
15、. Originallyapproved in 1982. Last previous edition approved in 2017 as C989/C989M 17.DOI: 10.1520/C0989_C0989M-18.2ACI 233R-03 Slag Cement in Concrete and Mortar. Available from AmericanConcrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333-9094,http:/www.concrete.org.3For referenced A
16、STM 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 AST
17、M International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Stan
18、dards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13. Terminology3.1 DefinitionsFor definitions of terms used in thisspecification, refer to Terminology C125.4. Classification4.1 Slag cement is classified by performance in the slagac
19、tivity test in three grades: Grade 80, Grade 100, and Grade120 (see Table 1).5. Ordering Information5.1 The purchaser shall specify the grade of slag cementdesired and the optional chemical or physical data to bereported.6. Additions6.1 Slag cement covered by this specification shall containno addit
20、ions except as follows:6.1.1 It is permissible to add calcium sulfate to slag cementprovided it has been demonstrated by Test Method C1038/C1038M that a test mixture will not develop expansion inwater exceeding 0.020 % at 14 days. In the test mixture, 50 %of the mass of portland cement shall be repl
21、aced by an equalmass of slag cement. The portland cement used in the testmixture shall meet the requirements of Specification C150/C150M. When the manufacturer supplies cement under thisprovision, upon request, supporting data shall be supplied tothe purchaser.6.1.2 When processing additions are use
22、d in the manufac-ture of slag cement, the maximum amount used shall complywith the requirements of Specification C465 when tested usinga blend that is 50 % slag cement and 50 % portland cement bymass.7. Chemical Composition7.1 Slag cement shall conform to the chemical requirementsprescribed in Table
23、 2 (see Note 3).NOTE 3Sulfur in granulated blast-furnace slag is present predomi-nantly as sulfide sulfur. In most cases, instrumental analyses, such as x-rayfluorescence, cannot differentiate sulfide sulfur from sulfate. Determineand report the sulfide sulfur content separately, and do not include
24、it in theSO3calculations.8. Physical Properties8.1 Slag cement shall conform to the physical requirementsof Table 1.9. Sampling9.1 The following sampling and testing procedures shall beused by the purchaser to verify compliance with this specifi-cation.9.2 Take random grab samples either from a deli
25、very unit orat some point in the loading or unloading process so that nosample represents more than 115 Mg 125 tons (Note 4). Ifsamples are taken from rail cars or trucks, take at least twoseparate 2-kg 5-lb portions and thoroughly mix them toobtain a test sample (Note 5). Sample by removing approxi
26、-mately a 300-mm 12-in. layer of slag cement. Make a holebefore obtaining a sample to avoid dust collector material thathas discharged into the delivery unit after the predominant slagcement flow has ceased. Sample at a rate of one sample permonth or one sample for each 2300 Mg 2500 tons ofshipments
27、, whichever is more frequent.NOTE 4Standard statistical procedures are recommended for ensuringthat samples are selected by a random procedure; see Practice D3665.These procedures can be used to select the days within a month or withina week that samples will be taken. The delivery unit or time of d
28、ay thenshould be chosen randomly.NOTE 5The quantity of sample specified is more than adequate for thetesting required. A 2-kg 5-lb portion should be retained in a sealedcontainer for retesting if that is considered necessary to verify compliance.10. Test Methods10.1 Slag-Activity Tests with Portland
29、 Cement:10.1.1 Slag activity shall be evaluated by determining thecompressive strength of portland-cement mortars and thecorresponding mortars made with the same mass of a blend thatis 50 % slag cement and 50 % portland cement by mass.NOTE 6Appendix X1 discusses the effects of cement, temperature,an
30、d amount of slag cement used on performance with portland cement.10.1.2 Reference CementThe portland cement used in theslag activity tests shall be the common reference cementsupplied by CCRL4that complies with the standard chemicaland physical requirements of Specification C150/C150M, TypeI or Type
31、 II, and with the additional requirements of total alkalicontent and compressive strength limits as shown in Table 3.Alternatively, a portland cement source meeting the standardchemical and physical requirements for a C150, Type I or TypeII, including the additional limits in Table 3, is permitted t
32、o beused. Sufficient cement shall be reserved to avoid changingreference cement more often than every two months. After the4The sole source of commercially available reference portland cement known tothe committee at this time is CCRL, 4441 Buckeystown Pike, Suite C; Frederick,Maryland 21704; www.CC
33、RL.us. If you are aware of alternative suppliers, pleaseprovide this information to ASTM International Headquarters. Your comments willreceive careful consideration at a meeting of the responsible technical committee,1which you may attend.TABLE 1 Physical RequirementsItemFineness:Amount retained whe
34、n wet screened on a 45-m (No. 325)sieve, max %20Specific surface by air permeability, Test Methods C204 shallbe determined and reported although no limits are required.Air Content of Slag Mortar, max % 12Average of Last FiveConsecutive SamplesAny IndividualSampleSlag Activity IndexA28-Day Index, min
35、 %Grade 80 75 70Grade 100 95 90Grade 120 115 110A7-Day Slag Activity Index shall be determined on Grades 100 and 120, andreported for informational purposes.TABLE 2 Chemical RequirementsSulfide sulfur (S), max, % 2.5C989/C989M 182initial testing to determine compliance with the compressivestrength r
36、equirement of Table 3, the reference cement shall bere-qualified at least every six months.NOTE 7Different reference cements may produce different SlagActivity Index results. Reference portland cement meeting the require-ments of 10.1.2 is available from CCRL.510.1.3 Preparation of SpecimensPrepare
37、mortars in accor-dance with Test Method C109/C109M, except that sufficientwater shall be used in each batch to produce mortar at a flowof 105 to 115 % as defined in Test Method C1437. Theproportions of dry ingredients shall be as follows:Reference Cement Mortar:500 g portland cement1375 g graded sta
38、ndard sandSlag Cement-Reference Cement Mortar:250 g portland cement250 g slag cement1375 g graded standard sand10.1.3.1 Mix a reference cement batch each day that a slagcement-reference cement batch is mixed until at least fivebatches have been mixed with the reference cement.Thereafter, reference c
39、ement batches need not be mixed moreoften than once a week whenever slag cement is beingproduced or shipped.10.1.4 Test AgesDetermine the compressive strength ofmortar specimens at 7 and 28 days age in accordance with TestMethod C109/C109M.10.1.5 CalculationCalculate the slag activity index to thene
40、arest percent for both 7 days and 28 days as follows:Slag activity index, % 5 SP/P! 3100 (1)where:SP = average compressive strength of slag cement-referencecement mortar cubes at designated ages, MPa psi, andP = average compressive strength of reference cementmortar cubes at designated age, MPa psi.
41、The reference cement-mortar strength used to calculate aslag activity index shall, when a reference cement mortar ismixed on the same day as a slag cement-reference cementmortar, be the result for that batch. Otherwise, the average oftests of the five most recent reference cement-mortar batchesshall
42、 be used.10.1.6 ReportThe report should include the following:10.1.6.1 Slag activity index, %,10.1.6.2 Compressive strength at 7 and 28 days, of slagcement-reference cement mortar,10.1.6.3 Compressive strength at 7 and 28 days, of portlandcement mortar,10.1.6.4 Total equivalent alkalies of the refer
43、ence cement(Na2O + 0.658 K2O),10.1.6.5 Reference portland cement type (Type I or Type II).10.1.7 PrecisionThe single and multilaboratory state-ments are based on slag activity index tests using one slagcement, in duplicate, at 7 and 28 days after fabrication ofsamples. The same slag cement and CCRL
44、reference cementwere used at each of 22 laboratories (Note 8).NOTE 8The precision of this test method was determined from aninterlaboratory study (ILS) under the jurisdiction of ASTM SubcommitteeC09.27. The ILS program was conducted in 2015. Practice C670 wasfollowed for the design and analysis of t
45、he data. The details are given inRR:C09-1048.610.1.7.1 The single-laboratory standard deviation has beenfound to be 1.65 % at 7 days and 2.62 % at 28 days. Therefore,the slag activity indices of properly conducted tests based onsingle batches of mortar mixed on the same day would not beexpected to d
46、iffer by more than 4.6 % at 7 days and 7.3 % at28 days in more than one case in 20.10.1.7.2 The multilaboratory standard deviation has beenfound to be 6.88 % at 7 days and 4.78 % at 28 days Therefore,the slag activity indices of properly conducted tests of singlebatches by different laboratories wou
47、ld not be expected todiffer by more than 19.3 % at 7 days and 13.4 % at 28 days inmore than one case in 20.10.2 Slag Cement Density and Specific GravityDeterminein accordance with Test Method C188.10.3 Amount of Slag Cement Retained on a 45-m (No. 325)SieveDetermine in accordance with Test Method C4
48、30.10.4 Slag Cement Fineness by Air PermeabilityDeterminein accordance with Test Methods C204.NOTE 9In Test Methods C204, the applicable b is 0.9.10.5 Sulfate Ion in Slag Cement Reported as SO3Determine as sulfur trioxide in accordance with Test MethodsC114, except the sample need not be completely
49、decomposedby acid.10.6 Sulfide Sulfur in Slag CementDetermine in accor-dance with Test Methods C114.10.7 Calcium Sulfate Expansion of MortarIf calciumsulfate is added to slag cement measure in accordance withTest Method C1038/C1038M.10.8 Chloride Content of Slag CementDetermine in ac-cordance with Test Methods C114.10.9 Air Content of Slag Cement MortarDetermine inaccordance with Test Method C185, except use 350 g of slagcement in the standard mortar batch. Calculate using theappropriate density of the slag cement.5The sole source of com
