1、Designation: C 656 07Standard Specification forStructural Insulating Board, Calcium Silicate1This standard is issued under the fixed designation C 656; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu
2、mber 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 specification covers structural insulating board forgeneral thermal insulating, fire-resistive, and marine bulkheadapplications. Th
3、e rigid, preformed structural insulating board isfor use at temperatures up to 1700F (927C). For specificapplications, the actual temperature limit shall be agreed uponbetween the manufacturer and the purchaser.1.2 The structural insulating board maintains its structuralintegrity after immersion in
4、water.1.3 Rapid cycling over a wide temperature range is notrecommended because of potential damage due to thermalshock.1.4 The values stated in inch-pound units are to be regardedas the standard. The approximate SI equivalents of inch-poundunits are given in parentheses.1.5 This standard does not p
5、urport to address all of thesafety concerns, if any, associated 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.1.6 When the installation or use of thermal
6、 insulationmaterials, accessories and systems, may pose safety or healthproblems, the manufacturer shall provide the user appropriatecurrent information regarding any known problems associatedwith the recommended use of the companys products, andshall also recommend protective measures to be employe
7、d intheir safe utilization. The user shall establish appropriate safetyand health practices and determine the applicability of regula-tory requirements prior to use.2. Referenced Documents2.1 ASTM Standards:2C 165 Test Method for Measuring Compressive Propertiesof Thermal InsulationsC 168 Terminolog
8、y Relating to Thermal InsulationC 177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC 203 Test Methods for Breaking Load and Flexural Prop-erties of Block-Type Thermal InsulationC 303 Test Method for Dimensions and
9、Density of Pre-formed Block and BoardType Thermal InsulationC 356 Test Method for Linear Shrinkage of PreformedHigh-Temperature Thermal Insulation Subjected to Soak-ing HeatC 390 Practice for Sampling and Acceptance of ThermalInsulation LotsC411 Test Method for Hot-Surface Performance of High-Temper
10、ature Thermal InsulationC 447 Practice for Estimating the Maximum Use Tempera-ture of Thermal InsulationsC 518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC 1045 Practice for Calculating Thermal TransmissionProperties Under Steady-State Condit
11、ionsC 1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationD 1037 Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel MaterialsE 136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750C3. Terminology3
12、.1 DefinitionsThe definitions inTerminology C 168 shallapply to the terms used in this specification.4. Classification4.1 The structural insulating boards shall be of the followingtypes:4.1.1 Type IMaximum use temperature 1400F (760C).4.1.2 Type IIMaximum use temperature 1700F (927C).4.2 The structu
13、ral insulating boards shall be of the followinggrades:4.2.1 Grade 1Typical density 36 lb/ft3(577 kg/m3).1This specification is under the jurisdiction of Committee C-16 on ThermalInsulation and is the direct responsibility of Subcommittee C16.20 on HomogeneousInorganic Thermal Insulations.Current edi
14、tion approved Sept. 1, 2007. Published September 2007. Originallyapproved in 1970. Last previous edition approved in C 656 94a(2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume infor
15、mation, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.2.2 Grade 2Typical density 46 lb/ft3(737 kg/m3).4.2.3 Grade 3Typical density 60 lb/ft3(961 kg/m3).4.2.4 Grade 4
16、Typical density 14 lb/ft3(224 kg/m3).4.2.5 Grade 5Typical density 18 lb/ft3(288 kg/m3).4.2.6 Grade 6Typical density 28 lb/ft3(449 kg/m3).4.2.7 Grade 7Typical density 40 lb/ft3(641 kg/m3).4.2.8 Grade 8Typical density 60 lb/ft3(961 kg/m3).5. Ordering Information5.1 The type, grade, and dimensions shal
17、l be specified bythe purchaser.5.2 When a certification or test report, or both, are required,it shall be specified by the purchaser.6. Materials and Manufacture6.1 Calcium silicate structural insulating board shall becomposed of hydrated calcium silicate with natural or man-made fibers or fillers,
18、or a combination thereof. Asbestos shallnot be used as an ingredient or component of the product.7. Other Requirements7.1 Calcium silicate structural insulating board shall con-form to the physical and mechanical requirements specified inTable 1.8. Dimensions and Permissible Variations8.1 Calcium si
19、licate structural insulating board is typicallyavailable in lengths 48 or 96 in. (1219 or 2438 mm), widths of24 or 48 in. (610 or 1219), and thicknesses from12 to 3in. (13to 76 mm).8.2 Dimensions shall be within the following tolerances ofspecified values:Length Width Thickness618 in. (3 mm) 618 in.
20、 (3 mm) 6116 in. (1.5 mm)9. Workmanship, Finish, and Appearance9.1 Calcium silicate structural insulating boards shall nothave visible defects, such as major cracks, lumps, or excessivedeparture from planeness, which adversely affect service quali-ties.10. Qualification Requirements10.1 Unless other
21、wise specified, the following requirementsshall be employed for the purpose of initial material or productqualification.10.1.1 Compressive strength,10.1.2 Screw holding strength,10.1.3 Linear shrinkage and temperate of use,10.1.4 Apparent thermal conductivity, and10.1.5 Combustion characteristics.11
22、. Sampling11.1 Calcium silicate structural insulating boards shall besampled in accordance with Practice C 390. Specific provisionsfor sampling shall be agreed upon between the purchaser andthe supplier.12. Test Methods12.1 Dimensions and DensityUse Test Method C 303,except that specimens shall be f
23、ull-size sheets for determina-tion of length and width and at least 12-in. (300-mm) squarefor determination of thickness and density.12.2 Flexural StrengthUse Test Methods C 203 on a 1-in.(25-mm) thick specimen.12.3 Compressive StrengthUse Test Methods C 165.Specimen thickness shall be 112 in. (38 m
24、m). Compressspecimen to 10 % deformation and calculate on maximum loadvalue.12.4 Screw Holding StrengthUse Test Methods D 1037,Direct Screw Withdrawal Test. Test at least three specimens,312-in. (89-mm) square, and 1 in. (25 mm) or more in thicknessafter drying to constant weight from 215F (102C) to
25、 250F(121C). Drill a hole at least 1 in. (25 mm) deep, normal to thesurface at the center of each specimen, with a No. 29 drill.Install a No. 8, Type A, self-tapping screw at least78 in. (22.2mm) in length such that 338 in. (18.8 mm) of the screwpenetrates the board.12.5 Apparent Thermal Conductivit
26、yUse Test MethodsC 177 or C 518. Test Method C 518 shall not be used attemperatures other than those in the range of calibration.TABLE 1 Physical and Mechanical RequirementsType I Type IIGrade 1 Grade 2 Grade 3 Grade 4 Grade 5 Grade 6 Grade 7 Grade 8Temperature of use, max, F (C) 1400 (760) 1400 (76
27、0) 1400 (760) 1700 (927) 1700 (927) 1700 (927) 1700 (927) 1700 (927)Density, typical, lb/ft3(kg/m3) 36 (577) 46 (737) 60 (961) 14 (224) 18 (288) 28 (449) 40 (641) 55 (881)Flexural strength, min, psi (kPa) 350 (2413) 550 (3792) 900 (6206) 100 (690) 200 (1379) 350 (2413) 800 (5516) 1200 (8274)Compress
28、ive strength, min, psi (kPa) 900 (6206) 1000 (6895) 2000 (13 790) 200 (1379) 300 (2069) 600 (4137) 2000 (13 790) 4000 (27 580)Screw-holding strength, min, lb (N) 80 (356) 120 (534) 150 (667) NA NA 20 (89) 150 (667) 200 (890)Linear shrinkage, 24 h at max use 2.0 2.0 3.0 2.0 2.0 2.0 2.0 2.0temp, max.%
29、Apparent thermal conductivity, max,Btuin./hft2F (mW/mK):Test Conditions Approximate DTMean Temperature Recommended200F (93C) 100F (56C) 0.71 (102) 0.92 (133) . 0.42 (61) 0.54 (78) 0.61 (88) 0.73 (105) .400F (204C) 100F (56C) 0.74 (107) 0.89 (128) 1.26 (182) 0.52 (75) 0.61 (88) 0.66 (95) 0.75 (108) 0
30、.97 (140)600F (316C) 100F (56C) 0.80 (115) 0.87 (125) 1.28 (185) 0.67 (97) 0.67 (97) 0.73 (105) 0.78 (113) 0.99 (143)800F (427C) 200F (111C) 0.88 (127) 0.90 (130) 1.29 (186) 0.87 (125) 0.73 (105) 0.80 (115) 0.84 (121) 1.05 (151)Combustion characteristics, Test Method E 136: Passing Passing Passing P
31、assing Passing Passing Passing PassingC65607212.5.1 Temperature of test shall be in accordance withPractice C 1058.12.5.2 Conduct the final analysis of the thermal data inaccordance with Practice C 1045 to generate a thermal con-ductivity versus temperature relationship for the specimen.12.6 Combust
32、ion CharacteristicsUse Test Method E 136.12.7 Maximum Use TemperaturesUse Practice C 447,which references Test Method C 411. Linear shrinkage (lengthor width, or both) should not exceed 2 % at maximum usetemperature. See Test Method C 356.13. Inspection13.1 Unless otherwise specified, the following
33、requirementsshall be employed for purposes of acceptance sampling of lotsor shipments of qualified insulation:13.1.1 Density,13.1.2 Flexural strength,13.1.3 Dimensions, and13.1.4 Workmanship, finish, and appearance.13.2 Inspection of the material shall be agreed upon be-tween the purchaser and the s
34、upplier.14. Rejection and Rehearing14.1 Failure to conform to the requirements in this specifi-cation shall constitute cause for rejection. Rejection shall bereported to the producer or supplier promptly and in writing.14.2 In case of rejection, the manufacturer or supplier shallhave the right to re
35、inspect the rejected shipment and resubmitthe lot after removal of that portion not conforming to thespecified requirements.15. Certification15.1 When specified in the purchase order or contract, themanufacturers or sellers certification shall be furnished to thepurchaser stating that samples repres
36、enting each lot have beenmanufactured, tested, and inspected in accordance with thisspecification and the requirements have been met. Whenspecified in the purchase order or contract, a report of the testresults shall be furnished.16. Packaging and Package Marking16.1 PackagingUnless otherwise specif
37、ied, the manufac-turers standard packaging system shall be used.16.2 Marking:16.2.1 Unless otherwise specified, each package shall bemarked with the manufacturers name, the product name,quantity, nominal dimensions, and manufacturers lot or date-code identification.16.2.2 When specified in the purch
38、ase order or contract,each container shall be marked with the appropriate ASTMC656 type and grade, or other special designations.17. Keywords17.1 calcium silicate; fire-resistive; marine; structural insu-lation; thermal insulationASTM International takes no position respecting the validity of any pa
39、tent 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 rights, are entirely their own responsibility.This standard is subject to revisio
40、n 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 additional standardsand should be addressed to ASTM International Headquarters. Your com
41、ments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments 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 copyright
42、ed 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).C656073
