1、Designation: C989/C989M 13C989/C989M 14Standard 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 o
2、f 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.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification covers thr
3、ee strength grades of slag cement for use as a cementitious material in concrete and mortar.NOTE 1The material described in this specification may be used for blending with portland cement to produce a cement meeting the requirementsof Specification C595C595/C595M or as a separate ingredient in conc
4、rete or mortar mixtures. The material may also be useful in a variety of specialgrouts and mortars, and when used with an appropriate activator, as the principal cementitious material in some applications.NOTE 2Information on technical aspects of the use of the material described in this specificati
5、on is contained in Appendix X1, Appendix X2, andAppendix X3. More detailed information on that subject is contained in ACI 233R-03.21.2 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 v
6、alues 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.Values are stated in only SI units when inch-pound units are not used in practice.1.3 The te
7、xt of this standard references notes and footnotes that provide explanatory information. These notes and footnotes(excluding those in tables) shall not be considered as requirements of this standard.1.4 The following safety hazards caveat pertains only to the test methods described in this specifica
8、tion. This standard does notpurport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard toestablish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1.4 The text of
9、 this standard references notes and footnotes that provide explanatory information. These notes and footnotes(excluding those in tables) shall not be considered as requirements of this standard.2. Referenced Documents2.1 ASTM Standards:3C109/C109M Test Method for Compressive Strength of Hydraulic Ce
10、ment Mortars (Using 2-in. or 50-mm Cube Specimens)C114 Test Methods for Chemical Analysis of Hydraulic CementC125 Terminology Relating to Concrete and Concrete AggregatesC150C150/C150M Specification for Portland CementC185 Test Method for Air Content of Hydraulic Cement MortarC188 Test Method for De
11、nsity of Hydraulic CementC204 Test Methods for Fineness of Hydraulic Cement by Air-Permeability ApparatusC227 Test Method for Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method)C204 Test Methods for Fineness of Hydraulic Cement by Air-Permeability ApparatusC430 Test Meth
12、od for Fineness of Hydraulic Cement by the 45-m (No. 325) SieveC441C441/C441M Test Method for Effectiveness of Pozzolans or Ground Blast-Furnace Slag in Preventing ExcessiveExpansion of Concrete Due to the Alkali-Silica ReactionC452 Test Method for Potential Expansion of Portland-Cement Mortars Expo
13、sed to SulfateC465 Specification for Processing Additions for Use in the Manufacture of Hydraulic Cements1 This specification is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.27 onGround Slag.Current edition appr
14、oved Dec. 15, 2013Aug. 1, 2014. Published January 2014August 2014. Originally approved in 1982. Last previous edition approved in 20122013 asC989/C989M12a. DOI: 10.1520/C0989_C0989M-13. 13. DOI: 10.1520/C0989_C0989M-14.2 ACI 233R-03 Slag Cement in Concrete and Mortar. Available from American Concret
15、e Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333.48333-9094,http:/www.concrete.org.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document
16、 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. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recom
17、mends 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 at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C70
18、0, West Conshohocken, PA 19428-2959. United States1C595C595/C595M Specification for Blended Hydraulic CementsC1012C1012/C1012M Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate SolutionC1038C1038/C1038M Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in
19、WaterC1260 Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)C1293 Test Method for Determination of Length Change of Concrete Due to Alkali-Silica ReactionC1567 Test Method for Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and
20、Aggregate (Accelerated Mortar-Bar Method)D3665 Practice for Random Sampling of Construction Materials3. Terminology3.1 DefinitionsFor definitions of terms used in this test method, refer to Terminology C125.4. Classification4.1 Slag cement is classified by performance in the slag activity test in th
21、ree grades: Grade 80, Grade 100, and Grade 120 (seeTable 1).5. Ordering Information5.1 The purchaser shall specify the grade of slag cement desired and the optional chemical or physical data to be reported.6. Additions6.1 Slag cement covered by this specification shall contain no additions except as
22、 follows:6.1.1 It is permissible to add calcium sulfate to slag cement provided it has been demonstrated by Test MethodC1038C1038/C1038M that a test mixture will not develop expansion in water exceeding 0.020 % at 14 days. In the test mixture,50 % of the mass of portland cement shall be replaced by
23、an equal mass of slag cement. The portland cement used in the testmixture shall meet the requirements of Specification C150C150/C150M. When the manufacturer supplies cement under thisprovision, upon request, supporting data shall be supplied to the purchaser.6.1.2 When processing additions are used
24、in the manufacture of slag cement, the maximum amount used shall comply with therequirements of Specification C465 when tested using a blend that is 50 % slag cement and 50 % portland cement by mass.7. Chemical Composition7.1 Slag cement shall conform to the chemical requirements prescribed in Table
25、 2.TABLE 1 Physical Requirementscolwidth=“9.41*“/COLSPECItemFineness:amount retained when wet screened on a 45-m (No. 325)sieve, max %20Amount 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
26、no limits are re-quired.Specific surface by air permeability, Test Methods C204 shallbe determined and reported although no limits are required.Air Content of Slag Mortar, max % 12colwidth=931.89*9/COLSPEC Average ofLast FiveConsecutiveSamplesAny IndividualSampleSlag Activity Index, min, %7-Day Inde
27、xSlag Activity IndexAGrade 80 . .Grade 100 75 70Grade 120 95 9028-Day Index28-Day Index, min %Grade 80 75 70Grade 100 95 90Grade 120 115 110A 7-Day Slag Activity Index shall be determined on Grades 100 and 120, andreported for informational purposes.C989/C989M 1428. Physical Properties8.1 Slag cemen
28、t shall conform to the physical requirements of Table 1.9. Sampling9.1 The following sampling and testing procedures shall be used by the purchaser to verify compliance with this specification.NOTE 3Sulfur in granulated blast-furnace slag is present predominantly as sulfide sulfur. In most cases, in
29、strumental analyses, such as x-rayfluorescence, cannot differentiate sulfide sulfur from sulfate. Determine and report the sulfide sulfur content separately, and do not include it in the SO3calculations.9.2 Take random grab samples either from a delivery unit or at some point in the loading or unloa
30、ding process so that no samplerepresents more than 115 Mg 125 tons (Note 4). If samples are taken from rail cars or trucks, take at least two separate 2-kg 5-lbportions and thoroughly mix them to obtain a test sample (Note 5). Sample by removing approximately a 300-mm 12-in. layerof slag cement. Mak
31、e a hole before obtaining a sample to avoid dust collector material that has discharged into the delivery unitafter the predominant slag cement flow has ceased. Sample at a rate of one sample per month or one sample for each 2300 Mg2500 tons of shipments, whichever is more frequent.NOTE 4Standard st
32、atistical procedures are recommended for ensuring that samples are selected by a random procedure; see Practice D3665. Theseprocedures can be used to select the days within a month or within a week that samples will be taken. The delivery unit or time of day then should bechosen randomly.NOTE 5The q
33、uantity of sample specified is more than adequate for the testing required.A2-kg 5-lb portion should be retained in a sealed containerfor 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 evaluat
34、ed by determining the compressive strength of portland-cement mortars and thecorresponding mortars made with the same mass of a blend that is 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 performanc
35、e with portland cement.10.1.2 Reference CementThe portland cement used in the slag activity tests shall be the common reference cement suppliedby CCRL4 that complies with the standard chemical and physical requirements of Specification C150C150/C150M, Type I or TypeII, and with the additional requir
36、ements of total alkali content and compressive strength limits as shown in Table 3. Alternatively,a portland cement source meeting the standard chemical and physical requirements for a C150, Type I or Type II, including theadditional limits in Table 3, is permitted to be used. Sufficient cement shal
37、l be reserved to avoid changing reference cement moreoften than every two months.After the initial testing to determine compliance with the compressive strength requirement of Table3, the reference cement shall be re-qualified at least every six months.NOTE 7Different reference cements may produce d
38、ifferent SlagActivity Index results. Reference portland cement meeting the requirements of 10.1.2is available from CCRL.510.1.3 Preparation of SpecimensPrepare mortars in accordance with Test Method C109/C109M, except that sufficient watershall be used in each batch to produce a flow of 1106 5 %. Th
39、e proportions of dry ingredients shall be as follows:Reference Cement Mortar:500 g portland cement4 The sole source of supply of the apparatus known to the committee at this time is CCRL, 4441 Buckeystown Pike, Suite C; Frederick, Maryland 21704; www.CCRL.us.If you are aware of alternative suppliers
40、, please provide this information toASTM International Headquarters. Your comments will receive careful consideration at a meetingof the responsible technical committee,1 which you may attend.5 The sole source of commercially available reference portland cement known to the committee at this time is
41、 CCRL, 4441 Buckeystown Pike, Suite C; Frederick,Maryland 21704; www.CCRL.us. If you are aware of alternative suppliers, please provide this information toASTM International Headquarters. Your comments will receivecareful consideration at a meeting of the responsible technical committee,1 which you
42、may attend.TABLE 2 Chemical RequirementsSulfide sulfur (S), max, % 2.5TABLE 3 Alkali and Strength Limits of Reference PortlandCement for Slag Activity TestsTotal Alkalies (Na2O + 0.658 K2O) min % 0.60max % 0.90Compressive Strength, MPa, min, 28 daysA 35 5000 psiA The minimum strength limit is based
43、solely on the strength of the Test MethodC109/C109M mortar cubes, as required in Specification C150C150/C150M,regardless of the strength of the flow-controlled Specification C989 mortar cubes.C989/C989M 1431375 g graded standard sandSlag Cement-Reference Cement Mortar:250 g portland cement250 g slag
44、 cement1375 g graded standard sand10.1.3.1 Mix a reference cement batch each day that a slag cement-reference cement batch is mixed until at least five batcheshave been mixed with the reference cement. Thereafter, reference cement batches need not be mixed more often than once a weekwhenever slag ce
45、ment is being produced or shipped.10.1.4 Test AgesDetermine the compressive strength of mortar specimens at 7 and 28 days age in accordance with TestMethod C109/C109M.10.1.5 CalculationCalculate the slag activity index to the nearest percent for both 7 days and 28 days as follows:Slag activity index
46、,%5SP/P! 3100 (1)where:SP = average compressive strength of slag cement-reference cement mortar cubes at designated ages, MPa psi, andP = average compressive strength of reference cement mortar cubes at designated age, MPa psi.The reference cement-mortar strength used to calculate a slag activity in
47、dex shall, when a reference cement mortar is mixed onthe same day as a slag cement-reference cement mortar, be the result for that batch. Otherwise, the average of tests of the five mostrecent reference cement-mortar batches shall be used.10.1.6 ReportThe report should include the following:10.1.6.1
48、 Slag activity index, %,10.1.6.2 Compressive strength at 7 and 28 days, of slag cement-reference cement mortar,10.1.6.3 Compressive strength at 7 and 28 days, of portland cement mortar,10.1.6.4 Total alkalies of the reference cement (Na2O + 0.658 K2O),10.1.6.5 Fineness of reference cement, and10.1.6
49、.6 Potential compound composition of the reference portland cement.10.1.7 PrecisionThe following precision statements are applicable when the slag activity index with portland cement is basedon results of tests of two cubes from single batches of reference cement and 50-50 slag cement-reference cement mortars mixedon the same day. They are applicable to the slag activity index determined at 7 or 28 days.10.1.7.1 The single-laboratory coefficient of variation has been found to be 4.1 %. Therefore, the slag activity indices ofproperly conduc
