1、Designation: C449 07 (Reapproved 2013)Standard Specification forMineral Fiber Hydraulic-Setting Thermal Insulating andFinishing Cement1This standard is issued under the fixed designation C449; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers mineral fiber (rock or slag)insulating and finishing cement shipped in
3、 dry-mix form,including hydraulic-setting binder, which, when mixed withwater and applied in accordance with the manufacturersdirections, affords a smooth surface as a final finish for heatedsurfaces up to 1200 F (649 C) for specific applications. Theactual temperature limit shall be agreed upon bet
4、ween thepurchaser and the manufacturer.NOTE 1Precautionary measures should be taken with this material aswith other hydraulic-setting mixtures. This material should be used withinthe time period recommended by the manufacturer.1.2 The values stated in inch-pound units are to be regardedas standard.
5、The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 The following safety hazards caveat pertains only to thetest method (Section 10) described in this specification: Thisstandard does not purport to address
6、 all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.1.4 When the installation or use of thermal insulationmaterial
7、s, accessories, and systems pose safety or healthproblems, the manufacturer shall provide the user with appro-priate current information regarding any known problemsassociated with the recommended use of the companysproducts and shall also recommend protective measures to beemployed in their safe ut
8、ilization. The user shall establishappropriate safety and health practices and determine theapplicability of regulatory requirements prior to use.2. Referenced Documents2.1 ASTM Standards:2C163 Practice for Mixing Thermal Insulating CementSamplesC166 Test Method for Covering Capacity and VolumeChang
9、e Upon Drying of Thermal Insulating CementC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC356 Test Method for Linear Shrinkage of Preformed High-Temperature Thermal
10、 Insulation Subjected to SoakingHeatC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC795 Spe
11、cification for Thermal Insulation for Use in Con-tact with Austenitic Stainless SteelC1045 Practice for Calculating Thermal Transmission Prop-erties Under Steady-State ConditionsC1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationC1114 Test M
12、ethod for Steady-State Thermal TransmissionProperties by Means of the Thin-Heater ApparatusE136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750C3. Terminology3.1 DefinitionsDefinitions found in Terminology C168shall be considered as applying to the terms used in thisspecificat
13、ion.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.20 onHomogeneous Inorganic Thermal Insulations.Current edition approved March 1, 2013. Published March 2013. Originallyapproved in 1960. Last previous edi
14、tion approved in 2007 as C449/C449M 07.DOI: 10.1520/C0449-07R13.2For 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 websi
15、te.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Materials and Manufacture4.1 Mineral fiber insulating and finishing cement shall becomposed of mineral fiber and suitable inorganic fillers,premixed with a hydraulic setting binder
16、 such that when mixedwith clean, fresh water, the cement will attain its initial set inapproximately 2 to4hasusually applied.4.2 The mineral fiber shall consist of rock or slag or glassprocessed from a molten state into fibrous form.4.3 Asbestos shall not be used as an ingredient or compo-nent part
17、in the manufacture of this product.4.4 Ceramic fiber shall not be used as an ingredient orcomponent part in the manufacture of this product.WarningIn the presence of moisture or water, a hydraulic-setting binder, usually portland cement, will chemically reactwith aluminum-containing materials such a
18、s aluminum laggingand powdered aluminum pigmented paints or coatings.5. Other Requirements5.1 The cement shall conform to the requirements given inTable 1. Conformance shall be based on results of tests onspecimens prepared in accordance with 9.1.5.2 Maximum Use TemperatureWhen tested in accor-dance
19、 with 10.5, the dried cement shall not warp, flame, orglow during hot surface exposure. No evidence of melting orfiber degradation shall be evident upon post-test inspection.5.3 Non-combustibilityWhen tested in accordance with10.6, the dried cement specimen, shall conform to the require-ments of Tes
20、t Method E136 .5.4 When the cement is to be used in contact with austeniticstainless steel, distilled or demineralized water shall be usedfor mixing. The cured and dried product, processed in accor-dance with Section 9 on Specimen Preparation, shall conformto the requirements of Specification C795.6
21、. Qualification Requirements6.1 The following requirements are employed for purposesof initial material or product qualifications:6.1.1 Dry covering capacity,6.1.2 Volume change upon drying,6.1.3 Linear shrinkage, and6.1.4 Apparent thermal conductivity.7. Sampling7.1 The cement shall be sampled for
22、acceptance tests inaccordance with Table 1 (Sampling Plan and AcceptanceCriteria for Inspection Requirements) of Practice C390, witheach bag representing a shipping unit.7.2 The test specimen shall be taken from the middle of abag, so as to be representative of material from the entire bag.A “grain
23、thief” or equivalent shall be used to obtain thespecimen from the bag.8. Number of Tests and Retests8.1 The number of tests shall be as required in 7.1 or asotherwise agreed to between the manufacturer and the user.8.2 If the average of the test data obtained on the requirednumber of specimens fails
24、 to comply with the requirements ofTable 1, the lot shall be resampled and retested. The results ofthe retest shall be averaged with the results of the original teststo determine compliance with this specification.9. Specimen Preparation9.1 Allow dry cement to expand/swell by standing for atleast 15
25、 min. then mix cement with water, and mold, cure, dryand cut in accordance with Practice C163, to produce theappropriate size and shape specimens, for testing as specifiedbelow.10. Test Methods10.1 Dry Covering CapacityTest Method C166.10.2 Volume Change Upon DryingTest Method C166.10.3 Linear Shrin
26、kageTest Method C356.10.4 Apparent Thermal Conductivity10.4.1 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 C177, C518,orC1114 as appropriate for the materialunder stu
27、dy. Specimen shall be tested at a maximum thicknessof 2 in. (51 mm).10.4.1.1 Test Method C518 shall not be used at tempera-tures or resistances other than those in the range of thecalibration.10.4.1.2 Test Method C1114 shall not be used at tempera-tures or resistance ranges other than those with com
28、parableresults to Test Method C177.10.4.2 The test method selected shall have proven correla-tion with Test Method C177 over the temperature range ofconditions used. In cases of dispute, Test Method C177 shall beconsidered as the final authority for material having flatgeometry.10.4.3 Practice C1058
29、 shall be used to obtain recommendedtest temperature combinations for testing purposes.10.4.4 As specified in Practice C1045, 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 dat
30、a and 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.TABLE 1 Physical RequirementsDry covering capacity min ft2 1
31、in. thickness per 100 lb of drycement (m2 1 cm thickness per 100 kg of dry cement)24 (12.5)Volume change (shrinkage) upon drying, max % 10.0Linear shrinkage (length) after 24 h heat soak at 1200F (649C),max %5.0Apparent thermal conductivity, max Btuin./hft2F(W/mK):Mean temperature F (C),75 (24) 0.95
32、 (0.137)200 (93) 1.00 (0.144)400 (204) 1.10 (0.159)700 (371) 1.30 (0.188)C449 07 (2013)210.4.5 Conduct the final analysis of the thermal data inaccordance with Practice C1045 to generate a thermal conduc-tivity versus temperature relationship for the specimen.10.4.6 The final step of Practice C1045
33、analysis is tocalculate the thermal conductivity using the equations gener-ated at a set of mean temperatures for comparison to thespecification.NOTE 2Caution: While it is recommended that the specification databe presented as conductivity versus temperature, several existing specifi-cations may con
34、tain mean temperature data from tests conducted atspecific hot and cold surface temperatures. In these cases, the conductivityas a function of temperature from the Practice C1045 analysis mayprovide different results. To insure that the data is compatible, a PracticeC680 analysis, using the conducti
35、vity versus temperature relationshipfrom Practice C1045 and the specific hot and cold surface temperatures, isrequired to determine the effective conductivity for comparison to thespecification requirements.10.5 Maximum Use TemperatureShall be tested, in accor-dance with Test Method C411 at the insu
36、lations maximum usetemperature and at the manufacturers maximum recom-mended thickness at that temperature. No special requirementsfor heat up of material shall be specified by the manufacturer.10.6 Non-combustibilityTest Method E136.11. Inspection11.1 The following requirements are employed for pur
37、posesof 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 Failure to conform to the requirements in this specifi-cation shall constitute cause for rejection. Rejection shall bereported to the prod
38、ucer or supplier promptly and in writing.12.2 In case of rejection, the manufacturer or supplier shallhave the right to reinspect the rejected shipment and resubmitthe lot after removal of that portion not conforming to thespecified requirements.13. Certification13.1 When specified in the purchase o
39、rder or contract, thepurchaser shall be furnished with certification that samplesrepresenting each lot have been either tested or inspected asdirected in this specification, and the requirements have beenmet. When specified in the purchase order or contract, a reportof the test results shall be furn
40、ished.14. Packaging14.1 Unless otherwise specified or agreed upon by thepurchaser and the manufacturer or supplier, the cement shall bepackaged in the manufacturers standard commercial contain-ers.15. Keywords15.1 cement; finishing; hydraulic-setting; insulating; min-eral fiber; thermal; thermal con
41、ductivityASTM 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 the validity of any such patent rights, and the riskof infringement of such ri
42、ghts, 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. Your comments are invited either for revision of this standard or for additiona
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44、M 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).C449 07 (2013)3
