ASTM C179-2004 Standard Test Method for Drying and Firing Linear Change of Refractory Plastic and Ramming Mix Specimens《耐火塑料和冲击混合样品的干燥和焙烧线性改变的标准试验方法》.pdf
《ASTM C179-2004 Standard Test Method for Drying and Firing Linear Change of Refractory Plastic and Ramming Mix Specimens《耐火塑料和冲击混合样品的干燥和焙烧线性改变的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM C179-2004 Standard Test Method for Drying and Firing Linear Change of Refractory Plastic and Ramming Mix Specimens《耐火塑料和冲击混合样品的干燥和焙烧线性改变的标准试验方法》.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C 179 04Standard Test Method forDrying and Firing Linear Change of Refractory Plastic andRamming Mix Specimens1This standard is issued under the fixed designation C 179; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、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 test method covers the determination of the dryingshrinkage and of the combined drying and linear ch
3、ange oframming and plastic refractories.1.2 The values stated in inch-pound units are to be regardedas the standard. The values in parentheses are provided forinformation only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsib
4、ility 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 113 Test Method for Reheat Change of Refractory BrickC 134 Test Methods for Size, Dimensional
5、Measurements,and Bulk Density of Refractory Brick and InsulatingFirebrickC 181 Test Method for Workability Index of Fireclay andHigh-Alumina Plastic RefractoriesC 1054 Practice for Pressing and Drying Refractory Plasticand Ramming Mix Specimens3. Significance and Use3.1 This test method is useful in
6、 quantitatively rating orranking both ramming and plastic refractories by their linearstability after heating.3.2 This test method is also useful for determining whethera ramming or plastic refractory can be used in a specifiedapplication based on linear change criteria.3.3 This test method excludes
7、 basic and carbon bearingmaterials.3.4 This test method can produce data for the engineeringand design of refractory installations. The linear change datacan be used to determine the number of joints necessary tomaintain integrity of ramming or plastic refractory in a largeinstallation.4. Apparatus4
8、.1 Kiln, electric or gas type, of such design that the flame,as coming directly from the burner, cannot impinge upon thetest specimens.4.2 Measuring Device3, a 12-in. (305-mm), graduated in0.02-in. (0.5-mm) increments. A hooked rule is convenient touse, and a suitable type is described in Test Metho
9、ds C 134.5. Test Specimens5.1 Number of SpecimensA minimum of six specimensmolded from the sample (see Note 1) of plastic refractory willbe required. Half of the specimens shall be used for the test andthe other half used as supporting pieces during the kiln heattreatment.NOTE 1For pressing and dryi
10、ng the specimens see Practice C 1054.5.2 Measurement of SpecimensUsing the measuring de-vice, measure the bar for all dimensions to the nearest 0.02-in.(0.5-mm). Label and make reference marks to indicate theexact length measurement points. Caution should be taken asdeformation of the specimens may
11、be caused by handling.5.3 Drying of SpecimensDry specimens should be driedas stated in Practice C 1054, 6.6.5.4 Measuring Dried SpecimensMeasure specimens asstated in 5.2.6. Procedure6.1 Placing Specimens in KilnPlace the dried specimensin the kiln in accordance with Test Method C 113, with theexcep
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