1、Designation: C 1312 97 (Reapproved 2003)Standard Practice forMaking and Conditioning Chemical-Resistant SulfurPolymer Cement Concrete Test Specimens in theLaboratory1This standard is issued under the fixed designation C 1312; the number immediately following the designation indicates the year oforig
2、inal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers procedures for making and condi-tioning t
3、est specimens of chemical-resistant sulfur polymercement concrete (SC) in the laboratory. The specimens are castunder accurate control of materials and test conditions usingaggregate and sulfur polymer cement (SPC) to make SC thatcan be consolidated by rodding, as described in this practice.1.2 Sulf
4、ur polymer cement may be furnished as a single ormultiple component system.1.3 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.4 This standard does not purport to address all of thesafety concerns, if any, associated
5、with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 470/C 470M Specification for Molds for Forming Con-crete Test
6、Cylinders VerticallyC 904 Terminology Relating to Chemical-Resistant, Non-metallic Materials2.2 National Institute of Standards and Technology:Handbook 44: Specifications, Tolerances and Other Techni-cal Requirements for Weighing and Measuring Devices33. Terminology3.1 DefinitionsFor definitions of
7、terms used in this prac-tice, refer to Terminology C 904.4. Significance and Use4.1 This practice is for making specimens of SC in astandard way so that comparative testing can be performed byvarious producers and users. Use of this practice to preparespecimens for laboratory testing will reduce var
8、iability thatmight be introduced by different methods of casting and by theuse of a variety of specimen shapes and sizes.5. Apparatus5.1 Molds:5.1.1 Molds for Specimens or Fastenings Thereto in Contactwith the SC shall be made of steel, cast iron, or othernonabsorbent materials that are nonreactive
9、with concretescontaining either SPC, its components, or other polymercements.5.1.2 Size of the Molds shall conform to the dimensions andtolerances specified in the procedure for which the specimensare required. Molds shall hold their dimensions and shapeunder conditions of severe use.5.1.3 Condition
10、 of the Molds for Casting shall be water-tight. A suitable sealant, such as modeling clay, shall be usedwhere necessary to prevent leakage through joints. Positivemeans shall be provided to hold base plates firmly to the molds.If cylinders are filled vertically and immediately stored hori-zontally f
11、or cooling, positive means also shall be provided tohold top plates firmly to the molds. Reusable molds shall belightly coated with mineral oil or a suitable nonreactive releasematerial before use.5.2 Cylinder Molds:5.2.1 Molds for Casting Specimens Vertically shall conformto the requirements of 5.1
12、 and Specification C 470/C 470M.5.2.2 Molds for Casting Specimens Vertically and StoringHorizontally shall conform to the requirements for symmetryand dimensional tolerances of Specification C 470/C 470M.Provision shall be made for fixing both end plates firmly to themold.5.3 Beam and Prism Molds sh
13、all be rectangular in crosssection (unless otherwise specified) and of the dimensionsrequired to produce the desired specimen size. The insidesurfaces of the molds shall be smooth and free from indenta-tions. The sides, bottom, and ends shall be at either equal or1This practice is under the jurisdic
14、tion of ASTM Committee C03 on Chemical-Resistant Nonmetallic Materials and is the direct responsibility of SubcommitteeC03.02 on Mortar and Monolithics.Current edition approved Oct. 1, 2003. Published October 2003. Originallyapproved in 1996. Last previous edition approved in 1997 as C 1312 97.2For
15、referenced ASTM 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.3Available from National Institute of Standards and Technology (NI
16、ST), 100Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.right angles to each other and shall be straight, true, and free ofwarpage. Maximum variation from the nominal cross sectionsh
17、all not exceed18 in. (3.2 mm) for molds with depth orbreadth of 6 in. (152 mm) or more, or116 in. (1.6 mm) formolds of smaller depth or breadth. Except for flexure speci-mens, molds shall not vary from the nominal length by morethan116 in. Flexure molds shall not be shorter than the requiredspecimen
18、 length but may exceed it.5.4 Consolidation, Mixing, and Other Miscellaneous Equip-ment shall be specified by the manufacturersee AppendixX1.5.5 Weighing Equipment shall be capable of weighing ma-terials or specimens to 60.3 % accuracy. The weighing equip-ment shall meet the National Institute of St
19、andards andTechnology requirements for sensitivity and tolerances.5.6 Concrete MixerA power-driven revolving-paddlemixer or suitable equivalent capable of thoroughly mixingbatches of the prescribed sizes at the required temperaturesshall be used.6. Test Specimens6.1 Cylindrical SpecimensCylinders fo
20、r such tests ascompressive strength, modulus of elasticity, creep, and split-ting tensile strength may be of various sizes with a minimumof 1 in. (25 mm) diameter by 2 in. (50 mm) length. Otherwise,dimensions are governed in accordance with 6.4 and the testmethod concerned.6.1.1 Cylindrical specimen
21、s for tests shall be molded withthe axis of the cylinder vertical but may be allowed to hardenin the horizontal position.6.2 Prismatic SpecimensBeams for flexural strength,cubes for compressive strength, prisms for freezing and thaw-ing, bond, length change, volume change, and so forth, shall becast
22、 with their long axes vertical, unless otherwise required bythe method of test in question, and shall conform in dimensionto the requirements of the specific test method.6.3 Other SpecimensOther shapes and sizes of specimensfor particular tests may be molded as desired following thegeneral procedure
23、s set forth in this practice.6.4 Specimen Size Versus Aggregate SizeThe diameter ofa cylindrical specimen or minimum cross-sectional dimensionof a rectangular section shall be at least three times themaximum size of the coarse aggregate in the SC (see Note).Occasional oversize aggregate particles (o
24、f a size not normallyfound in the average aggregate grading) shall be removed byhand picking during the molding of the specimens.NOTE 1The nominal maximum size of coarse aggregate is that sizenext larger than the largest sieve on which at least 15 % of the aggregateby weight is retained.6.5 Number o
25、f SpecimensThe number of specimens andthe number of test batches are dependent on establishedpractice and the nature of the test program. Guidance is usuallygiven in the test method or specification for which thespecimens are made. Usually, three or more specimens aremolded for each test age and tes
26、t condition unless otherwisespecified.7. Materials Preparation7.1 Sulfur Polymer CementStore the SPC or its compo-nents in a dry location away from any sources of heat.7.2 Equipment and Materials Temperature:7.2.1 For casting SC specimens, heat the mold, hand tools,and mixing equipment to 240F295F (
27、115145C) unlessotherwise specified by the manufacturer.7.2.2 Until added to the coarse and fine aggregates, the SPCor its components and mineral filler shall remain at ambientroom temperature and not exposed to any sources of heat.7.3 Aggregates:7.3.1 A sufficient amount of coarse aggregate and fine
28、aggregate shall be combined for each batch in the proportionsand in the manner specified by the manufacturer to produce thedesired grading before drying and heating.7.3.2 Before incorporating mineral filler and SPC or itscomponents into the concrete mixer, make sure that the desiredtemperature has b
29、een reached and that the final mixturetemperature can be maintained within the allowable range asspecified by the manufacturer.8. Procedure8.1 Mixing Sulfur Polymer Cement Concrete:8.1.1 GeneralMix SC according to manufacturers rec-ommendations in a suitable mixer in batches of such size as toleave
30、about 10 % excess after molding the test specimens.Mixing sequence and procedure from batch to batch should notvary unless the effect of such variation is under study.8.2 Making Specimens:8.2.1 Casting MoldsCast specimens as near as practicableto the place where they are to be stored during the firs
31、t 2 h.Place molds on a rigid surface free from vibration and otherdisturbances. Avoid jarring, tilting, or damaging of the surfacewhen moving the specimens to the storage place.8.2.2 CastingPlace SC in the molds using appropriatehand tools and ensure that it is representative of the batch.8.2.2.1 Nu
32、mber of LayersMake the specimens in twoapproximately equal layers of SC, making sure to overfill themold with the second layer.8.3 ConsolidationThe method of consolidating shall be asrecommended by the manufacturer.8.4 Finishing:8.4.1 Vertically Cooled CylindersAfter consolidation, fin-ish the surfa
33、ce of the SC to produce a flat, even surface that isflush with the overfill rim or extended edge of the mold.8.4.2 Horizontally Cooled Cylinders AlternativeAfterconsolidation, strike off the specimen level with the top of themold, secure the top cap on the mold, and immediately lay thefilled mold in
34、 a horizontal position to cool.9. Conditioning9.1 Sulfur polymer cement concrete shall be conditioned at73 6 4F (23 6 2C) before testing. The time between castingand testing the SC specimens is usually 24 h.10. Keywords10.1 conditioning; molds; sulfur polymer cement (SPC);sulfur polymer cement concr
35、ete or sulfur concrete (SC); testspecimensC 1312 97 (2003)2APPENDIX(Nonmandatory Information)X1. CONSOLIDATION, MIXING, AND OTHER MISCELLANEOUS EQUIPMENTX1.1 Tamping RodsTwo sizes are required for use incasting samples, depending on mold size. Each shall be around, straight, steel rod with at least
36、the tamping end roundedto a hemispherical tip of the same diameter as the rod. Bothends may be rounded if preferred, or an oak handle may beaffixed to one end of the rod for convenience.X1.1.1 Larger Rod,58 in. (16 mm) in diameter and approxi-mately 24 in. (610 mm) long.X1.1.2 Smaller Rod,38 in. (10
37、 mm) in diameter andapproximately 12 in. (305 mm) long for use on molds up to 6in. high.X1.2 MalletsA mallet with a rubber or rawhide headweighing 1.25 6 0.50 lb (0.57 6 0.23 kg) may be required.X1.3 Small ToolsTools and items such as shovels, pails,trowels, oak wood float, blunted trowels, straight
38、edge, feelergage, scoops, rulers, rubber gloves, and metal mixing bowlsmay be required.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of
39、the validity of any such patent rights, and the riskof 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 andif not revised, either reapproved or withdrawn. Y
40、our comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your commen
41、ts have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 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 aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C 1312 97 (2003)3
