1、Designation: C989/C989M 161C989/C989M 17Standard 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
2、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.This standard has been approved for use by agencies of the U.S. Department of Defense.1 NOTEFootnote 4 was corrected editoriall
3、y in March 2017.1. Scope*1.1 This specification covers 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 C595/C595M or as
4、a separate ingredient in concrete or mortar mixtures. The material may also be useful in a variety of special groutsand 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
5、described in this specification 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 unit
6、s are shown in brackets.The values 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 no
7、t used in practice.1.3 The text 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 method
8、s described in this specification.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 safety, health, and healthenvironmental practices and determine the applicabili
9、ty of regulatorylimitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Tr
10、ade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens)C114 Test Methods for Chemical Analysis of Hydraulic CementC125 Terminology Relatin
11、g to Concrete and Concrete AggregatesC150/C150M Specification for Portland CementC185 Test Method for Air Content of Hydraulic Cement MortarC188 Test Method for Density of Hydraulic CementC204 Test Methods for Fineness of Hydraulic Cement by Air-Permeability ApparatusC430 Test Method for Fineness of
12、 Hydraulic Cement by the 45-m (No. 325) SieveC452 Test Method for Potential Expansion of Portland-Cement Mortars Exposed 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 Concre
13、te and Concrete Aggregates and is the direct responsibility of Subcommittee C09.27 onGround Slag.Current edition approved Dec. 15, 2016Oct. 1, 2017. Published January 2017October 2017. Originally approved in 1982. Last previous edition approved in 20142016 asC989/C989M 14.161. DOI: 10.1520/C0989_C09
14、89M-16E01.10.1520/C0989_C0989M-17.2 ACI 233R-03 Slag Cement in Concrete and Mortar. Available from American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333-9094,http:/www.concrete.org.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Ser
15、vice at serviceastm.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 previo
16、us version. Becauseit 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 Chang
17、es section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1C595/C595M Specification for Blended Hydraulic CementsC670 Practice for Preparing Precision and Bias Statements for Test Methods for Constru
18、ction MaterialsC1012/C1012M Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate SolutionC1038/C1038M Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in WaterC1437 Test Method for Flow of Hydraulic Cement MortarC1778 Guide for Reducing the Risk of Deleterio
19、us Alkali-Aggregate Reaction in ConcreteD3665 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 thr
20、ee 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
21、follows:6.1.1 It is permissible to add calcium sulfate to slag cement provided it has been demonstrated by Test Method C1038/C1038Mthat a test mixture will not develop expansion in water exceeding 0.020 % at 14 days. In the test mixture, 50 % of the mass ofportland cement shall be replaced by an equ
22、al mass of slag cement. The portland cement used in the test mixture shall meet therequirements of Specification C150/C150M. When the manufacturer 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 man
23、ufacture 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 2.8. Phys
24、ical Properties8.1 Slag cement 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 sulf
25、ide sulfur. In most cases, instrumental 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
26、point in the loading or unloading 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
27、-in. layerTABLE 1 Physical RequirementsItemFineness:Amount 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 required.Air Content of Slag Mortar, max % 12Average of Last FiveConse
28、cutive SamplesAny IndividualSampleSlag Activity IndexA28-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 172of slag cement. Make a hole before obtaining a sample to
29、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 statistical procedures are recommended f
30、or 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 quantity of sample specified is more th
31、an 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 evaluated by determining the compressive stre
32、ngth 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 performance with portland cement.10.1.2 Referenc
33、e 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 C150/C150M, Type I or Type II,and with the additional requirements of total alkali content and compres
34、sive strength limits as shown in Table 3. Alternatively, aportland 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 shall be reserved to avoid changing reference
35、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 different SlagActivity Index results. Refer
36、ence 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 mortar at a flow of 105 to 115 % as defined in Test Method C1437
37、. The proportions of dryingredients shall be as follows:Reference Cement 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 slag cement-refer
38、ence 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 cement is being produced or shipped.10.1.4 Test AgesDetermine the compressive strength of mortar specimens
39、at 7 and 28 days age in accordance with TestMethod C109/C109M.4 The sole source of commercially available reference portland cement 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, please pr
40、ovide this information toASTM International Headquarters. Your comments will receivecareful consideration at a meeting of 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 CCRL, 4441
41、 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 may attend.
42、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 solely on t
43、he strength of the Test MethodC109/C109M mortar cubes, as required in Specification C150/C150M, regardlessof the strength of the flow-controlled Specification C989 mortar cubes.C989/C989M 17310.1.5 CalculationCalculate the slag activity index to the nearest percent for both 7 days and 28 days as fol
44、lows:Slag activity index,%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 calc
45、ulate a slag activity index 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 includ
46、e the following:10.1.6.1 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 ref
47、erence cement, and10.1.6.6 Potential compound composition of the reference portland cement.10.1.7 PrecisionThe single and multilaboratory statements are based on slag activity index tests using one slag cement, induplicate, at 7 and 28 days after fabrication of samples. The same slag cement and CCRL
48、 reference cement were used at each of22 laboratories (Note 8).NOTE 8The precision of this test method was determined from an interlaboratory study (ILS) under the jurisdiction ofASTM Subcommittee C09.27.The ILS program was conducted in 2015. Practice C670 was followed for the design and analysis of
49、 the data. The details are given in RR:C09-1048.610.1.7.1 The single-laboratory standard deviation has been found to be 1.65 % at 7 days and 2.62 % at 28 days. Therefore, theslag activity indices of properly conducted tests based on single batches of mortar mixed on the same day would not be expectedto differ by more than 4.6 % at 7 days and 7.3 % at 28 days in more than one case in 20.10.1.7.2 The multilaboratory standard deviation has been found to be 6.88 % at 7 days and 4.78 % at 28 days Therefore, theslag activity indices of properl
