ASTM C134-1995(2010) Standard Test Methods for Size Dimensional Measurements and Bulk Density of Refractory Brick and Insulating Firebrick《耐火砖和绝热耐火砖的尺寸和松装密度的标准试验方法》.pdf
《ASTM C134-1995(2010) Standard Test Methods for Size Dimensional Measurements and Bulk Density of Refractory Brick and Insulating Firebrick《耐火砖和绝热耐火砖的尺寸和松装密度的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM C134-1995(2010) Standard Test Methods for Size Dimensional Measurements and Bulk Density of Refractory Brick and Insulating Firebrick《耐火砖和绝热耐火砖的尺寸和松装密度的标准试验方法》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C134 95 (Reapproved 2010)Standard Test Methods forSize, Dimensional Measurements, and Bulk Density ofRefractory Brick and Insulating Firebrick1This standard is issued under the fixed designation C134; the number immediately following the designation indicates the year oforiginal adoptio
2、n or, in the case of 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 These test methods cover procedures for measuring size,dimensional measurem
3、ent, bulk density, warpage, and square-ness of rectangular dense refractory brick and rectangularinsulating firebrick. More precise determination of bulk densityof refractory brick can be made by Test Methods C20. Stackheight is generally determined only for dense refractories.NOTE 1Test Methods C83
4、0 and Test Method C914 are also used todetermine bulk density of refractory brick, by different procedures.1.2 The test methods appear in the following order:SectionsSize and Bulk Density 4 through 7Warpage of Refractory Brick 8 through 10Squareness of Refractory Brick 11 through 141.3 The values st
5、ated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its u
6、se. 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:2C20 Test Methods for Apparent Porosity, Water Absorption,Apparent Specific
7、 Gravity, and Bulk Density of BurnedRefractory Brick and Shapes by Boiling WaterC830 Test Methods for Apparent Porosity, Liquid Absorp-tion, Apparent Specific Gravity, and Bulk Density ofRefractory Shapes by Vacuum PressureC914 Test Method for Bulk Density and Volume of SolidRefractories by Wax Imme
8、rsion3. Significance and Use3.1 Refractory brick are used as modular units in furnaceconstruction and should not deviate significantly from theintended configuration with respect to size, bulk density, flatsurfaces, and right angles. These test methods are particularlysuited for use under field cond
9、itions and provide a means todetermine whether the brick meets the requirements considerednecessary to assure a satisfactory refractory construction.SIZE AND BULK DENSITY4. Apparatus4.1 Rule, steel, hook, 12 in. (305 mm) in length, graduatedin 0.02-in. (0.5-mm) divisions, for use in measuring indivi
10、dualbrick. The rule has a rigid hardened steel hook consisting of aright-angled piece on one end to fix the zero point of the scaleagainst one face of the brick. The hook is about14 in. (6 mm)in width and extends about14 in. beyond the back face or,preferably, the edge of the rule.4.2 Rule, stiff st
11、eel, hook, 36 in. (914 mm) in length,graduated from each end in 0.02-in. (0.5-mm) divisions, for usein measuring stack height and the larger individual brick. The36-in. rule has the same design as the 12-in (305-mm) rule.NOTE 2Check the hook rules periodically to determine that they havenot become w
12、orn or distorted in use. Other measuring equipment may beused, provided the results are at least as accurate as those obtained withthe hook rule.4.3 Weighing Scale, having a capacity of 20 lb (9 kg) ormore and a sensitivity under load of at least 0.01 lb (4.5 g).5. Sampling5.1 A sample consists of t
13、en brick selected at random.1These test methods are under the jurisdiction of ASTM Committee C08 onRefractories and are the direct responsibility of Subcommittee C08.03 on PhysicalProperties.Current edition approved April 1, 2010. Published May 2010. Originallyapproved in 1938. Last previous edition
14、 approved in 2005 as C134 95 (2005).DOI: 10.1520/C0134-95R10.2For 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 website.
15、1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 Preparation of SpecimensRemove any blisters or finsfrom the specimens by lightly rubbing them together. Omit thisstep in the case of insulating firebrick.6. Procedure6.1 Length and
16、WidthMeasure the length and width ofeach of the ten specimens across the middle of each of the facesof largest area to the nearest 0.02 in. (0.5 mm). Make andrecord the individual measurements of the two opposite facesof each specimen.6.2 ThicknessDetermine the thickness of insulating fire-brick and
17、 record in the same manner as the length and width,as indicated in 6.1. Make the thickness measurements at thecenters of the longer sides of the brick. Determine the thicknessof dense refractory brick in the same manner or, when requiredby specification, calculate the average thickness from the stac
18、kheight determined as in 6.3.6.3 Stack HeightStack the ten specimens vertically on aplane surface with their faces of largest area together to form asmooth column, without regard to the position of any brandmarks on the specimens. Measure the height of the stack to thenearest 0.02 in. (0.5 mm) from
19、the plane surface to the top ofthe stack at the center of each side. Record the individualmeasurements of the four sides of the stack.6.4 WeightDry at 230F (110C), cool, and weigh each ofthe specimens to the nearest 0.01 lb (4.5 g), and record theweight.7. Calculation and Report7.1 SizeReport the in
20、dividual measurements and the cal-culated average for the two individual measurements forlength, width, and thickness for each specimen.7.2 Stack Height and Average ThicknessReport the indi-vidual measurements and the calculated stack height as theaverage of the individual measurements of the four s
21、ides of thestack if required. Report “average thickness by stack height” asthe average stack height divided by ten. For bricks over 312 in.(89 mm) in thickness, report the average thickness of theindividual specimens.7.3 Bulk DensityCalculate and report the bulk density foreach specimen, using Eq 1
22、or Eq 2 as appropriate and theaverage dimensions obtained in accordance with 7.1 and theweight obtained in accordance with 6.4.lb/ft3!B 5d 3 1728/l 3 w 3 t! (1)orB 5 d/l 3 w 3 t! (2)where:B = bulk density, lb/ft3(g/cc),d = dry weight, lb (g),l = length, in. (mm),w = width, in. (mm), andt = thickness
23、, in. (mm).WARPAGE OF REFRACTORY BRICK8. Apparatus8.1 Steel Straightedge, stiff, having sufficient length to spanthe diagonal of the largest shape to be measured, and graduatedin 0.02-in. (0.5-mm) divisions.8.2 Measuring Wedges, two, steel, 2.5-in. (64-mm) long by0.5 in. (13 mm) wide by 0.5 in. thic
24、k at one end, and taperedfrom a line 0.5 in. from one end to zero thickness at the otherend. The wedge shall be graduated and numbered along theslope to show the thickness of the wedge between base AB andslope AC in 0.02-in. (0.5-mm) divisions (Fig. 1).8.2.1 Similar Wedges, of equivalent size and sl
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