1、Designation: C989/C989M 12aStandard 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 revis
2、ion. 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 Department of Defense.1. Scope*1.1 This specification covers three strength grade
3、s of slagcement for use as a cementitious material in concrete andmortar.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 or as a separate ingredient in concrete ormortar mixtures. The
4、material may also be useful in a variety of specialgrouts and mortars, and when used with an appropriate activator, as theprincipal cementitious material in some applications.NOTE 2Information on technical aspects of the use of the materialdescribed in this specification is contained in Appendix X1,
5、 Appendix X2,and 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 n
6、ot be exact equivalents; 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 following safety hazards caveat perta
7、ins only to thetest methods described in this specification. This standard doesnot 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 practicesand determine the applicability o
8、f regulatory limitations priorto use.1.4 The text of this standard references notes and footnotesthat provide explanatory information. These notes and foot-notes (excluding those in tables) shall not be considered asrequirements of this standard.2. Referenced Documents2.1 ASTM Standards:3C109/C109M
9、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 Specification for Portland CementC185 Test Method for Air Content of Hydrau
10、lic CementMortarC188 Test Method for Density of Hydraulic CementC227 Test Method for Potential Alkali Reactivity ofCement-Aggregate Combinations (Mortar-Bar Method)C204 Test Methods for Fineness of Hydraulic Cement byAir-Permeability ApparatusC430 Test Method for Fineness of Hydraulic Cement by the4
11、5-m (No. 325) SieveC441 Test Method for Effectiveness of Pozzolans or GroundBlast-Furnace Slag in Preventing Excessive Expansion ofConcrete Due to the Alkali-Silica ReactionC452 Test Method for Potential Expansion of Portland-Cement Mortars Exposed to SulfateC465 Specification for Processing Additio
12、ns for Use in theManufacture of Hydraulic CementsC595 Specification for Blended Hydraulic CementsC1012 Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate SolutionC1038 Test Method for Expansion of Hydraulic CementMortar Bars Stored in WaterC1260 Test Method for Potential
13、Alkali Reactivity of Ag-gregates (Mortar-Bar Method)C1293 Test Method for Determination of Length Change ofConcrete Due to Alkali-Silica ReactionC1567 Test Method for Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Mate-rials and Aggregate (Accelerated Mortar-Bar M
14、ethod)1This specification is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregatesand is the direct responsibility of SubcommitteeC09.27 on Ground Slag.Current edition approved July 15, 2012. Published October 2012. Originallyapproved in 1982. Last previous edition approved
15、 in 2012 as C989/C989M12.DOI: 10.1520/C0989_C0989M-12a.2ACI 233R-03 Slag Cement in Concrete and Mortar. Available from AmericanConcrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at
16、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. U
17、nited States1D3665 Practice for Random Sampling of Construction Ma-terials3. Terminology3.1 For definitions of terms used in this test method, refer toTerminology C125.4. Classification4.1 Slag cement is classified by performance in the slagactivity test in three grades: Grade 80, Grade 100, and Gra
18、de120 (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 additions except as follows:6.1.1 It is permissible to add cal
19、cium sulfate to slag cementprovided it has been demonstrated by Test Method C1038 thata test mixture will not develop expansion in water exceeding0.020 % at 14 days. In the test mixture, 50 % of the mass ofportland cement shall be replaced by an equal mass of slagcement. The portland cement used in
20、the test mixture shallmeet the requirements of Specification C150. When the manu-facturer supplies cement under this provision, upon request,supporting data shall be supplied to the purchaser.6.1.2 When processing additions are used in the manufac-ture of slag cement, the maximum amount used shall c
21、omplywith 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 2.8. Physical Properties8.1 Slag cement shall conform to the physica
22、l requirementsof Table 1.9. Sampling9.1 The following sampling and testing procedures shall beused by the purchaser to verify compliance with this specifi-cation.NOTE 3Sulfur in granulated blast-furnace slag is present predomi-nantly as sulfide sulfur. In most cases, instrumental analyses, such as x
23、-rayfluorescence, cannot differentiate sulfide sulfur from sulfate. Determineand report the sulfide sulfur content separately, and do not include it in theSO3calculations.9.2 Take random grab samples either from a delivery unit orat some point in the loading or unloading process so that nosample rep
24、resents 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-mately a 300-mm 12-in. layer of slag cement. Make a holebefore obtaining a sample
25、 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, whichever is more frequent.NOTE 4Standard statistical procedures are recommended
26、 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 day thenshould be chosen randomly.NOTE 5The quantity of sample specified is more th
27、an 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 Cement:10.1.1 Slag activity shall be evaluated by determining thecompressive stre
28、ngth 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,and amount of slag cement used on performance with portland cement.10.1.2 Reference
29、CementThe portland cement used in theslag activity tests shall comply with the standard chemical andphysical requirements of Specification C150, Type I or Type II,and with the additional requirements of total alkali content andcompressive strength limits as shown in Table 3. Sufficientcement shall b
30、e reserved to avoid changing reference cementmore often than every two months. After the initial testing todetermine compliance with the compressive strength require-ment of Table 3, the reference cement shall be re-qualified atleast every six months.TABLE 1 Physical RequirementsItemFineness:amount
31、retained when 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 re-quired.Air Content of Slag Mortar, max % 12Average ofLast FiveConsecutiveSamplesAny IndividualSampleSlag Activity Index, min,
32、%7-Day IndexGrade 80 . .Grade 100 75 70Grade 120 95 9028-Day IndexGrade 80 75 70Grade 100 95 90Grade 120 115 110TABLE 2 Chemical RequirementsSulfide sulfur (S), max, % 2.5C989/C989M 12a2NOTE 7Different reference cements may produce different SlagActivity Index results. Reference portland cement meet
33、ing the require-ments of 10.1.2 is available from CCRL.410.1.3 Preparation of SpecimensPrepare mortars in accor-dance with Test Method C109/C109M, except that sufficientwater shall be used in each batch to produce a flow of 11065 %. The proportions of dry ingredients shall be as follows:Reference Ce
34、ment Mortar:500 g portland cement1375 g graded standard 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
35、 with the reference cement.Thereafter, reference cement 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 Cal
36、culationCalculate the slag activity index to thenearest percent for both 7 days and 28 days as follows:Slag activity index, % 5 SP/P! 3100 (1)SP = average compressive strength of slag cement-referencecement mortar cubes at designated ages, MPa psi, andP = average compressive strength of reference ce
37、mentmortar cubes at designated age, MPa psi.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
38、 recent reference cement-mortar batchesshall 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.
39、1.6.4 Total alkalies of the reference cement(Na2O + 0.658 K2O),10.1.6.5 Fineness of reference cement, and10.1.6.6 Potential compound composition of the referenceportland cement.10.1.7 PrecisionThe following precision statements areapplicable when the slag activity index with portland cement isbased
40、on results of tests of two cubes from single batches ofreference cement and 50-50 slag cement-reference cementmortars mixed on the same day. They are applicable to the slagactivity index determined at 7 or 28 days.10.1.7.1 The single-laboratory coefficient of variation hasbeen found to be 4.1 %. The
41、refore, the slag activity indices ofproperly conducted tests based on single batches of mortarmixed on the same day should not differ by more than 11.6 %of their average.10.1.7.2 The multilaboratory coefficient of variation hasbeen found to be 5.7 %. Therefore, the slag activity indices ofproperly c
42、onducted tests of single batches by different labora-tories should not differ by more than 16.1 %.10.2 Slag Cement DensityDetermine in accordance withTest Method C188.10.3 Amount of Slag Cement Retained on a 45-m (No. 325)SieveDetermine in accordance with Test Method C430.10.4 Slag Cement Fineness b
43、y Air PermeabilityDeterminein accordance with Test Methods C204.10.5 Sulfate Ion in Slag Cement Reported as SO3Determine as sulfur trioxide in accordance with Test MethodsC114, except the sample need not be completely decomposedby acid.10.6 Sulfide Sulfur in Slag CementDetermine in accor-dance with
44、Test Methods C114.10.7 Chloride Content of SlagDetermine in accordancewith Test Methods C114.10.8 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.11.
45、Rejection and Rehearing11.1 The purchaser has the right to reject material that failsto conform to the requirements of this specification. Rejectionshall be reported to the producer or supplier promptly and inwriting. In case of dissatisfaction with the results of the tests,the producer or supplier
46、is not prohibited from making a claimfor retesting.NOTE 8In the event of a Slag Activity Index dispute, the purchasershould request a sample of the producers reference cement for retest.12. Certification12.1 Upon request of the purchaser in the contract or order,a manufacturers report shall be furni
47、shed at the time ofshipment stating the results of tests made on samples of thematerial taken during production or transfer and certifying thatthe slag cement conforms to applicable requirements of thisspecification.4The sole source of commercially available reference portland cement known tothe com
48、mittee at this time is CCRL, 4441 Buckeystown Pike, Suite C; Frederick,Maryland 21704; www.CCRL.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
49、committee,1which you may attend.TABLE 3 Alkali and Strength Limits of Reference PortlandCement for Slag Activity TestsTotal Alkalies (Na2O+0.658K2O) min % 0.60max % 0.90Compressive Strength, MPa, min, 28 daysA35 5000 psiAThe minimum strength limit is based solely on the strength of the Test MethodC109/C109M mortar cubes, as required in Specification C150, regardless of thestrength of the flow-controlled Specification C989 mortar cubes.C989/C989M 12a312.2 When specified in the purchase order or contract, testdata shall be furnished on th
