Designation: C 150 – 00 - Portland Cement1.pdf (tiêu chuẩn xây dựng)

Designation: C 150 – 00 Standard Specification for Portland Cement1 This standard is issued under the fixed designation C 150; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) 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 eight types of portland cement, as follows (see Note 1): 1.1.1 Type I—For use when the special properties specified for any other type are not required. 1.1.2 Type IA—Air-entraining cement for the same uses as Type I, where air-entrainment is desired. 1.1.3 Type II—For general use, more especially when moderate sulfate resistance or moderate heat of hydration is desired. 1.1.4 Type IIA—Air-entraining cement for the same uses as Type II, where air-entrainment is desired. 1.1.5 Type III—For use when high early strength is desired. 1.1.6 Type IIIA—Air-entraining cement for the same use as Type III, where air-entrainment is desired. 1.1.7 Type IV—For use when a low heat of hydration is desired. 1.1.8 Type V—For use when high sulfate resistance is desired. 1.2 When both SI and inch-pound units are present, the SI units are the standard. The inch-pound units are approximations listed for information only. 1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. C 115 Test Method for Fineness of Portland Cement by the Turbidimeter3 C 151 Test Method for Autoclave Expansion of Portland Cement3 C 183 Practice for Sampling and the Amount of Testing of Hydraulic Cement3 C 185 Test Method for Air Content of Hydraulic Cement Mortar3 C 186 Test Method for Heat of Hydration of Hydraulic Cement3 C 191 Test Method for Time of Setting of Hydraulic Cement by Vicat Needle3 C 204 Test Method for Fineness of Hydraulic Cement by Air Permeability Apparatus3 C 226 Specification for Air-Entraining Additions for Use in the Manufacture of Air-Entraining Portland Cement3 C 266 Test Method for Time of Setting of Hydraulic Cement Paste by Gillmore Needles3 C 451 Test Method for Early Stiffening of Hydraulic Cement (Paste Method)3 C 452 Test Method for Potential Expansion of Portland Cement Mortars Exposed to Sulfate3 C 465 Specification for Processing Additions for Use in the Manufacture of Hydraulic Cements3 C 563 Test Method for Optimum SO3 in Hydraulic Cement Using 24-h Compressive Strength3 C 1038 Test Method for Expansion of Portland Cement Mortar Bars Stored in Water3 E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications4 2. Referenced Documents 2.1 ASTM Standards: C 33 Specification for Concrete Aggregates2 C 109/C 109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens)3 C 114 Test Methods for Chemical Analysis of Hydraulic Cement3 3. Terminology 3.1 Definitions: 3.1.1 portland cement—a hydraulic cement produced by pulverizing clinker consisting essentially of hydraulic calcium silicates, usually containing one or more of the forms of calcium sulfate as an interground addition. 3.1.2 air-entraining portland cement—a hydraulic cement produced by pulverizing clinker consisting essentially of hydraulic calcium silicates, usually containing one or more of the 1 This specification is under the jurisdiction of ASTM Committee C01 on Cement and is the direct responsibility of Subcommittee C01.10 on Portland Cement. Current edition approved Feb. 10, 2000. Published December 2000. Originally published as C 150 – 40 T. Last previous edition C 150 – 99a. 2 Annual Book of ASTM Standards, Vol 04.02. 3 Annual Book of ASTM Standards, Vol 04.01. 4 Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States. 1 Annual Book of ASTM Standards, Vol 14.02. C 150 cement shall have been shown to meet the requirements of Specification C 465 in the amounts used or greater. 5.1.3 Air-entraining portland cement shall contain an interground addition conforming to the requirements of Specification C 226. forms of calcium sulfate as an interground addition, and with which there has been interground an air-entraining addition. 4. Ordering Information 4.1 Orders for material under this specification shall include the following: 4.1.1 This specification number and date, 4.1.2 Type or types allowable. If no type is specified, Type I shall be supplied, 4.1.3 Any optional chemical requirements from Table 2, if desired, 4.1.4 Type of setting-time test required, Vicat or Gillmore. If not specified, the Vicat shall be used, 4.1.5 Any optional physical requirements from Table 3, if desired. 6. Chemical Composition 6.1 Portland cement of each of the eight types shown in Section 1 shall conform to the respective standard chemical requirements prescribed in Table 1. In addition, optional chemical requirements are shown in Table 2. NOTE 2—When comparing oxide analyses and calculated compounds from different sources or from different historic times, be aware that they may not have been reported on exactly the same basis. Chemical data obtained by Reference and Alternate Test Methods of Test Methods C 114 (wet chemistry) may include titania and phosphorus as alumina unless proper correction has been made (see Test Methods C 114), while data obtained by rapid instrumental methods usually do not. This can result in small differences in the calculated compounds. Such differences are usually within the precision of the analytical methods, even when the methods are properly qualified under the requirements of Test Methods C 114. NOTE 1—Cement conforming to the requirements for all types are not carried in stock in some areas. In advance of specifying the use of cement other than Type I, determine whether the proposed type of cement is, or can be made, available. 5. Additions 5.1 The cement covered by this specification shall contain no addition except as follows: 5.1.1 Water or calcium sulfate, or both, if added, shall be in amounts such that the limits shown in Table 1 for sulfur trioxide and loss-on-ignition are not exceeded. 5.1.2 Processing additions used in the manufacture of the 7. Physical Properties 7.1 Portland cement of each of the eight types shown in Section 1 shall conform to the respective standard physical requirements prescribed in Table 3. In addition, optional physical requirements are shown in Table 4. TABLE 1 Standard Chemical Requirements Cement TypeA I and IA Silicon dioxide (SiO2), min, % Aluminum oxide (Al2O3), max, % Ferric oxide (Fe2O3), max, % Magnesium oxide (MgO), max, % Sulfur trioxide (SO3),D max, % When (C3A)E is 8 % or less When (C3A)E is more than 8 % Loss on ignition, max, % Insoluble residue, max, % Tricalcium silicate (C3S),E max, % Dicalcium silicate (C2S),E min, % Tricalcium aluminate (C3A)E max, % Tetracalcium aluminoferrite plus twice the tricalcium aluminateE (C4AF + 2(C3A)), or solid solution (C4AF + C2F), as applicable, max, % ... ... ... 6.0 3.0 3.5 3.0 0.75 ... ... ... ... A II and IIA III and IIIA IV V 20.0 6.0 6.0B,C 6.0 ... ... ... 6.0 ... ... 6.5 6.0 ... ... ... 6.0 3.0 3.5 4.5 3.0 0.75 ... ... 15 ... B,C F 3.0 0.75 ... ... 8 ... 2.3 2.3 F F 2.5 0.75 35B 40B 7B ... 3.0 0.75 ... ... 5C 25C See Note 1. Does not apply when the heat of hydration limit in Table 4 is specified. Does not apply when the sulfate resistance limit in Table 4 is specified. D There are cases where optimum SO3(using Test Method C 563) for a particular cement is close to or in excess of the limit in this specification. In such cases where properties of a cement can be improved by exceeding the SO3 limits stated in this table, it is permissible to exceed the values in the table, provided it has been demonstrated by Test Method C 1038 that the cement with the increased SO3 will not develop expansion in water exceeding 0.020 % at 14 days. When the manufacturer supplies cement under this provision, he shall, upon request, supply supporting data to the purchaser. E All values calculated as described in this note shall be rounded according to Practice E 29. When evaluating conformance to a specification, round values to the same number of places as the corresponding table entry before making comparisons. The expressing of chemical limitations by means of calculated assumed compounds does not necessarily mean that the oxides are actually or entirely present as such compounds. When expressing compounds, C = CaO, S = SiO2, A = Al2O3, F = Fe2O3. For example, C3A = 3CaO·Al2O3. Titanium dioxide and phosphorus pentoxide (TiO2 and P2O5) shall not be included with the Al2O3 content. See Note 2. When the ratio of percentages of aluminum oxide to ferric oxide is 0.64 or more, the percentages of tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite shall be calculated from the chemical analysis as follows: Tricalcium silicate = (4.071 3 % CaO) − (7.600 3 % SiO2) − (6.718 3 % Al2O3) − (1.430 3 % Fe2O3) − (2.852 3 % SO3) Dicalcium silicate = (2.867 3 % SiO2) − (0.7544 3 % C3S) Tricalcium aluminate = (2.650 3 % Al2O3) − (1.692 3 % Fe2O3) Tetracalcium aluminoferrite = 3.043 3 % Fe2O3 When the alumina-ferric oxide ratio is less than 0.64, a calcium aluminoferrite solid solution (expressed as ss(C4AF + C2F)) is formed. Contents of this solid solution and of tricalcium silicate shall be calculated by the following formulas: ss(C4AF + C2F) = (2.100 3 % Al2O3) + (1.702 3 % Fe2O3) Tricalcium silicate = (4.071 3 % CaO) − (7.600 3 % SiO2) − (4.479 3 % Al2O3) − (2.859 3 % Fe2O3) − (2.852 3 % SO3). No tricalcium aluminate will be present in cements of this composition. Dicalcium silicate shall be calculated as previously shown. F Not applicable. B C 2 C 150 TABLE 2 Optional Chemical RequirementsA Cement Type Tricalcium aluminate (C3A),B max, % Tricalcium aluminate (C3A),B max, % Sum of tricalcium silicate and tricalcium aluminate,B max, % Equivalent Alkalies (Na2O + 0.658K2O), max, % I and IA II and IIA III and IIIA ... ... ... ... ... 58C 8 5 0.60D 0.60D IV V ... ... ... ... ... ... ... 0.60D 0.60D 0.60D Remarks for moderate sulfate resistance for high sulfate resistance for moderate heat of hydration low-alkali cement A These optional requirements apply only when specifically requested. Verify availability before ordering. See Note 1 in Section 4. B All values calculated as described in this note shall be rounded according to Practice E 29. When evaluating conformance to a specification, round values to the same number of places as the corresponding table entry before making comparisons. The expressing of chemical limitations by means of calculated assumed compounds does not necessarily mean that the oxides are actually or entirely present as such compounds. When expressing compounds, C = CaO, S = SiO2, A = Al2O3, F = Fe2O3. For example, C3A = 3CaO·Al2O3. Titanium dioxide and phosphorus pentoxide (TiO2 and P2O5) shall not be included with the Al2O3 content. See Note 2. When the ratio of percentages of aluminum oxide to ferric oxide is 0.64 or more, the percentages of tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite shall be calculated from the chemical analysis as follows: Tricalcium silicate = (4.071 3 % CaO) − (7.600 3 % SiO2) − (6.718 3 % Al2O3) − (1.430 3 % Fe2O3) − (2.852 3 % SO3) Dicalcium silicate = (2.867 3 % SiO2) − (0.7544 3 % C3S) Tricalcium aluminate = (2.650 3 % Al2O3) − (1.692 3 % Fe2O3) Tetracalcium aluminoferrite = 3.043 3 % Fe2O3 When the alumina-ferric oxide ratio is less than 0.64, a calcium aluminoferrite solid solution (expressed as ss (C4AF + C2F)) is formed. Contents of this solid solution and of tricalcium silicate shall be calculated by the following formulas: ss(C4AF + C2F) = (2.100 3 % Al2O3) + (1.702 3 % Fe2O3) Tricalcium silicate = (4.071 3 % CaO) − (7.600 3 % SiO2) − (4.479 3 % Al2O3) − (2.859 3 % Fe2O3) − (2.852 3 % SO3). No tricalcium aluminate will be present in cements of this composition. Dicalcium silicate shall be calculated as previously shown. C The optional limit for heat of hydration in Table 4 shall not be requested when this optional limit is requested. D Specify this limit when the cement is to be used in concrete with aggregates that are potentially reactive and no other provisions have been made to protect the concrete from deleteriously reactive aggregates. Refer to Specification C 33 for information on potential reactivity of aggregates. TABLE 3 Standard Physical Requirements Cement TypeA Air content of mortar,B volume %: max min Fineness,C specific surface, m2/kg (alternative methods): Turbidimeter test, min Air permeability test, min Autoclave expansion, max, % Strength, not less than the values shown for the ages indicated as follows:D Compressive strength, MPa (psi): 1 day I IA II III IIIA IV V 12 ... 22 16 12 ... 22 16 12 ... 22 16 12 ... 12 ... 160 280 0.80 160 280 0.80 160 280 0.80 160 280 0.80 ... ... 0.80 ... ... 0.80 160 280 0.80 160 280 0.80 ... ... ... ... 12.0 (1740) 24.0 (3480) 10.0 (1450) 19.0 (2760) ... ... 3 days 12.0 (1740) 10.0 (1450) 7 days 19.0 (2760) 16.0 (2320) 28 days IIA 10.0 (1450) 7.0E (1020)E 17.0 (2470) 12.0E (1740)E ... 8.0 (1160) 6.0E (870)E 14.0 (2030) 9.0E (1310)E ... ... 8.0 (1160) ... ... 7.0 (1020) 15.0 (2180) ... ... 17.0 (2470) 21.0 (3050) ... ... 60 600 60 600 60 600 60 600 60 600 60 600 60 600 60 600 45 375 45 375 45 375 45 375 45 375 45 375 45 375 45 375 F Time of setting (alternative methods): Gillmore test: Initial set, min, not less than Final set, min, not more than Vicat test:G Time of setting, min, not less than Time of setting, min, not more than A See Note 1. Compliance with the requirements of this specification does not necessarily ensure that the desired air content will be obtained in concrete. C The testing laboratory shall select the fineness method to be used. However, when the sample fails to meet the requirements of the air-permeability test, the turbidimeter test shall be used, and the requirements in this table for the turbidimetric method shall govern. D The strength at any specified test age shall be not less than that attained at any previous specified test age. E When the optional heat of hydration or the chemical limit on the sum of the tricalcium silicate and tricalcium aluminate is specified. F The time-of-setting test required shall be specified by the purchaser. In case he does not so specify, the requirements of the Vicat test only shall govern. G The time of setting is that described as initial setting time in Test Method C 191. B 8. Sampling 8.1 When the purchaser desires that the cement be sampled and tested to verify compliance with this specification, perform sampling and testing in accordance with Practice C 183. 8.2 Practice C 183 is not designed for manufacturing quality control and is not required for manufacturer’s certification. 3 C 150 TABLE 4 Optional Physical RequirementsA Cement TypeA False set, final penetration, min, % Heat of hydration: 7 days, max, kJ/kg (cal/g) 28 days, max, kJ/kg (cal/g) Strength, not less than the values shown: Compressive strength, MPa (psi) 28 days Sulfate resistance,D 14 days, max, % expansion I 50 IA II 50 IIA 50 III 50 B 50 B IIIA 50 IV V 50 50 C ... ... ... ... 290 (70) ... 290 (70) ... ... ... ... ... 250 (60) 290 (70)C ... ... 28.0 (4060) 22.0 (3190) ... ... ... ... 22.0 (3190) 18.0B (2610)B ...E ... ... 28.0 (4060) 22.0B (3190)B ...E ... ... ... 0.040 A These optional requirements apply only when specifically requested. Verify availability before ordering. See Note 1 in Section 4. B The optional limit for the sum of the tricalcium silicate and tricalcium aluminate in Table 2 shall not be requested when this optional limit is requested. These strength requirements apply when either heat of hydration or the sum of tricalcium silicate and tricalcium aluminate requirements are requested. C When the heat of hydration limit is specified, it shall be instead of the limits of C3S, C2S, C3A, SiO2, and Fe2O3 listed in Table 1. D When the sulfate resistance is specified, it shall be instead of the limits of C3A, C4AF + 2 C3A, SiO2, and Fe2O3 listed in Table 1. E Cement meeting the high sulfate resistance limit for Type V is deemed to meet the moderate sulfate resistance requirement of Type II. 12. Manufacturer’s Statement 9. Test Methods 9.1 Determine the applicable properties enumerated in this specification in accordance with the following test methods: 9.1.1 Air Content of Mortar—Test Method C 185. 9.1.2 Chemical Analysis—Test Methods C 114. 9.1.3 Strength—Test Method C 109. 9.1.4 False Set—Test Method C 451. 9.1.5 Fineness by Air Permeability—Test Method C 204. 9.1.6 Fineness by Turbidimeter—Test Method C 115. 9.1.7 Heat of Hydration—Test Method C 186. 9.1.8 Autoclave Expansion—Test Method C 151. 9.1.9 Time of Setting by Gillmore Needles—Test Method C 266. 9.1.10 Time of Setting by Vicat Needles—Test Method C 191. 9.1.11 Sulfate Resistance—Test Method C 452 (sulfate expansion). 9.1.12 Calcium Sulfate (expansion of) Mortar—Test Method C 1038. 9.1.13 Optimum SO3—Test Method C 563. 12.1 At the request of the purchaser, the manufacturer shall state in writing the nature, amount, and identity of any air-entraining addition and of any processing addition used, and also, if requested, shall supply test data showing compliance of such air-entraining addition with Specification C 226 and of such processing addition with Specification C 465. 13. Packaging and Package Marking 13.1 When the cement is delivered in packages, the words “Portland Cement,” the type of cement, the name and brand of the manufacturer, and the mass of the cement contained therein shall be plainly marked on each package. When the cement is an air-entraining type, the words “air-entraining” shall be plainly marked on each package. Similar information shall be provided in the shipping documents accompanying the shipment of packaged or bulk cement. All packages shall be in good condition at the time of inspection. NOTE 3—With the change to SI units, it is desirable to establish a standard SI package for portland cements. To that end 42 kg (92.6 lb) provides a convenient, even-numbered mass reasonably similar to the traditional 94-lb (42.6-kg) package. 10. Inspection 10.1 Inspection of the material shall be made as agreed upon between the purchaser and the seller as part of the purchase contract. 14. Storage 11. Rejection 11.1 The cement shall be rejected if it fails to meet any of the requirements of this specification. 11.2 At the option of the purchaser, retest, before using, cement remaining in bulk storage for more than 6 months or cement in bags in local storage in the custody of a vendor for more than 3 months after completion of tests and reject the cement if it fails to conform to any of the requirements of this specification. Cement so rejected shall be the responsibility of the owner of record at the time of resampling for retest. 11.3 Packages shall identify the mass contained as net weight. At the option of the purchaser, packages more than 2 % below the mass marked thereon shall be rejected and if the average mass of packages in any shipment, as shown by determining the mass of 50 packages selected at random, is less than that marked on the packages, the entire shipment shall be rejected. 14.1 The cement shall be stored in such a manner as to permit easy access for proper inspection and identification of each shipment, and in a suitable weather-tight building that will protect the cement from dampness and minimize warehouse set. 15. Manufacturer’s Certification 15.1 Upon request of the purchaser in the contract or order, a manufacturer’s report shall be furnished at the time of shipment stating the results of tests made on samples of the material taken during production or transfer and certifying that the cement conforms to applicable requirements of this specification. 16. Keywords 16.1 hydraulic cement; portland cement; specification 4 C 150 APPENDIX X1. MANUFACTURER’S CERTIFICATION (MILL TEST REPORT) X1.1 To provide uniformity for reporting the results of tests performed on cements under this specification, as required by Section 15 of Specification C 150 entitled Manufacturer’s Certification, an example Mill Test Report is shown in Fig. X1.1. reflect the chemical and physical requirements of this specification and recommends reporting all analyses and tests normally performed on cements meeting Specification C 150. Purchaser reporting requirements should govern if different from normal reporting by the manufacturer or from those recommended here. X1.2 The identity information given should unambiguously identify the cement production represented by the Mill Test Report and may vary depending upon the manufacturer’s designation and purchaser’s requirements. X1.5 Cements may be shipped prior to later-age test data being available. In such cases, the test value may be left blank. Alternatively, the manufacturer can generally provide estimates based on historical production data. The report should indicate if such estimates are provided. X1.3 The Manufacturer’s Certification statement may vary depending upon the manufacturer’s procurement order, or legal requirements, but should certify that the cement shipped is represented by the certificate and that the cement conforms to applicable requirements of the specification at the time it was tested (or retested) or shipped. X1.6 In reporting limits from the tables in Specification C 150 on the Mill Test Report, only those limits specifically applicable should be listed. In some cases, Specification C 150 table limits are superceded by other provisions. X1.4 The sample Mill Test Report has been developed to 5 C 150 FIG. X1.1 Example Mill Test Report 6 C 150 The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. This standard is copyrighted by ASTM, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585 (phone), 610-832-9555 (fax), or service@astm.org (e-mail); or through the ASTM website (www.astm.org). 7

Designation: C 150 – 00 - Portland Cement1

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