ASTM C195-2000 Standard Specification for Mineral Fiber Thermal Insulating Cement《矿物纤维隔热水泥的标准规范》.pdf

1、Designation: C 195 00Standard Specification forMineral Fiber Thermal Insulating Cement1This standard is issued under the fixed designation C 195; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number i

2、n parentheses indicates the year of last reapproval. Asuperscript 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. Scope1.1 This specification covers mineral fiber thermal insulat-ing m

3、aterials in the form of dry cement, which, when mixedwith a suitable proportion of water, applied as a plastic mass,and dried in place, affords resistance to heat transmission onsurfaces operating at temperatures between 250 and 1900F(about 121 and 1038C).1.2 The values stated in inch-pound units ar

4、e to be regardedas the standard. The SI equivalents of inch-pound units aregiven in parentheses and may be approximate.1.3 The following safety hazards caveat pertains only to thetest methods section of this specification: This standard doesnot purport to address all of the safety concerns, if any,a

5、ssociated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:C 163 Practice for Mixing Thermal Insulating CementSamples2

6、C 166 Test Method for Covering Capacity and VolumeChange Upon Drying of Thermal Insulating Cement2C 168 Terminology Relating to Thermal Insulating Materi-als2C 177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate Apparatus2C 35

7、3 Test Method for Adhesion of Dried Thermal Insulat-ing or Finishing Cement2C 354 Test Method for Compressive Strength of ThermalInsulating or Finishing Cement2C 356 Test Method for Linear Shrinkage of PreformedHigh-Temperature Thermal Insulation Subjected to Soak-ing Heat2C 390 Criteria for Samplin

8、g and Acceptance of PreformedThermal Insulation Lots2C 405 Practice for Estimating Consistency of Wet-MixedThermal Insulating Cement2C 411 Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation2C 518 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmissio

9、n Properties by Means ofthe Heat Flow Meter Apparatus2C 1045 Practice for Calculating Thermal TransmissionProperties From Steady-State Heat Flux Measurements2C 1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal Insulation2C 1114 Test Method for Steady-

10、State Thermal TransmissionProperties by Means of the Thin-Heater Apparatus2E 136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750C33. Terminology3.1 DefinitionsTerminology C 168 shall be considered asapplying to the terms used in this specification.4. Materials and Manufacture4

11、.1 Mineral fiber thermal insulating cement shall be com-posed of mineral fiber, with a suitable proportion of heat-resistant binder.4.2 The mineral fiber shall consist of rock, slag, or glassprocessed from a molten state into fibrous form.4.3 Asbestos shall not be used as an ingredient or compo-nent

12、 part of the product.5. Other Requirements5.1 The cement shall conform to the requirements given inTable 1. Conformance shall be based on results of tests on1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.2

13、0 onHomogeneous Inorganic Thermal Insulations.Current edition approved Oct. 10, 2000. Published December 2000. Originallypublished as ES 10, 1942. Last previous edition C 195 95.2Annual Book of ASTM Standards, Vol 04.06.3Annual Book of ASTM Standards, Vol 04.07.1Copyright ASTM International, 100 Bar

14、r Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.specimens first mixed with water, according to the ratio forproper troweling consistency determined in accordance withSection 10.5.2 Maximum Use TemperatureWhen tested in accor-dance with paragraph 10.8, the dried cement sh

15、all not warp,flame, or glow during hot surface exposure. No evidence ofmelting or fiber degradation shall be evident upon post-testinspection.5.3 Non-combustibilityWhen tested in accordance withparagraph 10.9, the dried cement specimen, using 10.6.7.1,shall not exceed the recorded temperature rise m

16、ore than 54F(30C) with no flaming or weight loss exceeding 5%.6. Qualification Requirements6.1 The following requirements are employed for purposesof initial material or product qualification:6.1.1 Consistency,6.1.2 Compressive strength,6.1.3 Linear shrinkage,6.1.4 Apparent thermal conductivity, and

17、6.1.5 Dry adhesion to steel.7. Sampling7.1 The cement shall be sampled, for the purpose of tests,using one of the following procedures. Unless otherwisespecified or agreed upon between the purchaser and themanufacturer or supplier, the cement shall be sampled usingthe manufacturers standard procedur

18、e.7.1.1 Use Criteria C 390. Each bag shall represent a unit.7.1.1.1 In a single sampling plan by attributes the accept-ability of a lot will be determined by the number of units ofproduct in the sample that do not conform to the specifications.The acceptable quality level (AQL) and limiting quality

19、level(LQL) of an acceptance sampling plan, expressed as percent-ages of the units nonconforming, are characteristics of thesampling plan and are not to be viewed as product specifica-tions.7.1.2 Use the average of the test data from the number oftest specimens required by the appropriate test method

20、 torepresent the average for the entire lot.7.2 The specimen for test is to be taken from the middle ofa bag, so as to be representative of material from the entire bag.8. Number of Tests and Retests8.1 If the average of the test data obtained using 7.1.2 failsto conform to the requirements of this

21、specification, a secondsample shall be taken from the lot. Average the results of theretest with the results of the original test to determine compli-ance with this specification.9. Specimen Preparation9.1 Mix specimens for testing in accordance with PracticeC 163.9.2 Water-Cement Ratio for Proper T

22、rowelingConsistencyFor each lot of cement to be tested, determinethe ratio by weight of water to be mixed with cement to obtainsatisfactory troweling consistency. For tests to determinecompliance with this specification, the water-cement ratio shallbe that which gives the measured consistency of 20

23、to 30 % bythe Deformation Method when determined in accordance withPractice C 405.10. Test Methods10.1 Consistency Practice C 405.10.2 Dry Covering CapacityTest Method C 166.10.3 Volume Change Upon DryingTest Method C 166.10.4 Compressive StrengthTest Method C 354.10.5 Linear Shrinkage Test Method C

24、 356.10.6 Apparent Thermal Conductivity10.6.1 The thermal conductivity as a function of tempera-ture for the representative specimens shall be determined withdata obtained from a series of thermal tests utilizing testmethods C 177, C 518, or C 1114 as appropriate for thematerial under study. Specime

25、n shall be tested at a maximumthickness of 112 in. (38 mm).10.6.1.1 Test Method C 518 shall not be used at tempera-tures or resistances other than those in the range of thecalibration.10.6.1.2 Test Method C 1114 shall not be used at tempera-tures or resistance ranges other than those with comparable

26、results to Test Method C 177.10.6.2 The test method selected shall have proven correla-tion with Test Method C 177 over the temperature range ofconditions used. In cases of dispute, Test Method C 177 shallbe considered as the final authority for material having flatgeometry.10.6.3 Practice C 1058 ma

27、y be used to obtain recommendedtest temperature combinations for testing purposes.10.6.4 As specified in Practice C 1045, the range of testconditions must include at least one test where the hot surfacetemperature is greater than, or equal to, the hot limit of thetemperature range of desired data an

28、d at least one test wherethe cold surface temperature is less than, or equal to, the coldlimit of the temperature range desired. Additional tests, at leasttwo, shall be distributed somewhat evenly over the rest of thetemperature range.10.6.5 Conduct the final analysis of the thermal data shall becon

29、ducted in accordance with Practice C 1045 to generate athermal conductivity versus temperature relationship for thespecimen.TABLE 1 Physical RequirementsDry covering capacity, min, ft2, 1 in. in thickness per 100 lb ofdry cement (m2, 1 cm in thickness per 100 kg of dry cement)30 (15.3)Volume change

30、(shrinkage) upon drying, max, % 35 (35)Compressive strength at 5 % deformation, min, psi (kPa) 10 (69)Dry adhesion to steel, min, psi (kPa) 4 (27.6)Linear shrinkage (length) after heat soaking at 1600F (871C)max, %5(5)Apparent thermal conductivity, max, Btuin./hft2F (W/mK):AAt mean temperature of 20

31、0F (93C) 0.70 (0.101)At mean temperature of 500F (260C) 0.85 (0.123)At mean temperature of 700F (371C) 0.95 (0.137)At mean temperature of 900F (482C) 1.2 (0.173)AThe user is advised that some applications could require the knowledge of thethermal conductivity of the insulating cement at mean tempera

32、tures above thoseshown. Consult the manufacturer for data at mean temperatures exceeding thoselisted.C 195210.6.6 The final step of Practice C 1045 analysis would beto calculate the thermal conductivity using the equationsgenerated at a set of mean temperatures for comparison to thespecification.NOT

33、E 1Caution: While it is recommended that the specification databe presented as thermal conductivity versus temperature, several existingspecifications may contain mean temperature data from tests conducted atspecific hot and cold surface temperatures. In these cases, the thermalconductivity as a fun

34、ction of temperature from the Practice C 1045analysis may provide different results. To insure that the data is compat-ible, a Practice C 680 analysis, using the thermal conductivity versustemperature relationship from Practice C 1045 and the specific hot andcold surface temperatures, is required to

35、 determine the effective thermalconductivity for comparison to the specification requirements.10.6.7 Prepare the test specimens as follows:10.6.7.1 Mold test specimens in a mold of suitable size andshape for the equipment to be used and 112 in. (38 mm) indepth. The cement shall be mixed with water i

36、n accordancewith Practice C 163. Place the mold in a horizontal position ona piece of glass 14 in. (360 mm) or 15 in. (380 mm) square, orslightly larger than the specimen required. Place the mixedcement in the mold, trowel the top surface of the cementsmooth, and place a sheet of ordinary writing pa

37、per on top ofthe cement. Place a18-in. (3-mm) thick steel plate 14 in. (360mm) or 15 in. (380 mm) square, or slightly larger than thespecimen required, having nine equally spaced holes316in. (5mm) in diameter in the central area 10 in. (250 mm) indiameter, on top of the mold and use a pointed pin to

38、 puncturethe paper immediately under the holes in the steel plate. Invertthis entire assembly and remove the glass plate, trowel thesurface of the cement smooth and flush with the top of themold, and then carefully remove the mold. Place the perforatedplate with the molded cement on an open shelf of

39、 an ovenhaving a volume at least 50 times that of the specimens to bedried. The oven chamber shall be adequately vented in such amanner as to ensure complete circulation of the atmosphere ofthe entire oven chamber preferably by fan or other forcedcirculation method. The test specimens shall remain i

40、n theoven for at least 48 h at a temperature of 215F (102C) to250F (121C). Upon removal from the oven, the surfaces ofthe specimens shall be made plane and parallel by cutting,sandpapering, or rubbing, or by a combination of thesemethods. The lateral dimensions of the specimens shall begoverned by t

41、he size of the apparatus.10.7 Dry Adhesion to SteelTest Method C 353.10.8 Maximum Use TemperatureShall be tested afterdrying, using 10.6.7.1, a sample of material in accordance withTest Method C 411 at the insulations maximum use tempera-ture and at the manufacturers maximum recommended thick-ness a

42、t that temperature. The test surface shall be at theintended surface temperature when test begins. No specialrequirements for heat up shall be specified by the manufacturer.10.9 Non-combustibilityMay be determined with passingTest Method E 136 when all four specimens meet the reportedconditions.11.

43、Inspection11.1 The following requirements are employed for purposesof acceptance sampling of lots or shipments of qualifiedcement:11.1.1 Dry covering capacity.11.1.2 Volume change upon drying.12. Rejection and Rehearing12.1 Material that fails to conform to the requirements ofthis specification may

44、be rejected. Rejection should be reportedto the manufacturer or supplier promptly and in writing. In caseof dissatisfaction with the results of the test, the manufactureror supplier may make claim for a rehearing.12.2 In case of rejection, the manufacturer or supplier shallhave the right to reinspec

45、t the rejected shipment and resubmitthe lot after removal of that portion not conforming to thespecified requirements.13. Certification13.1 When specified in the purchase order or contract, thepurchaser shall be furnished certification that samples repre-senting each lot have been either tested or i

46、nspected as directedin this specification and the requirements have been met. Whenspecified in the purchase order or contract, a report of the testresults shall be furnished.14. Packaging14.1 Unless otherwise specified or agreed upon by thepurchaser and the manufacturer or supplier, the cement shall

47、 bepackaged in the manufacturers standard commercial contain-ers.15. Keywords15.1 insulating cement; mineral fiber; thermal insulationThe American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connectionwith any item mentioned in this st

48、andard. Users of this standard are expressly advised that determination of the validity of any suchpatent 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 rev

49、iewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsibletechnical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make yourviews known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM, 100 Barr Harbor Dri