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ASTM C1171-05(2011)

Historical Reaffirmation

Standard Test Method for Quantitatively Measuring the Effect of Thermal Shock and Thermal Cycling on Refractories

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1.1 This test method is used for determining the strength loss or reduction in continuity, or both, of prism-shaped specimens which are cut from refractory brick or shapes and subjected to thermal cycling.

1.2 The strength loss is measured by the difference in modulus of rupture (MOR) between uncycled specimens and the specimens subjected to thermal cycling.

1.3 The reduction in structural continuity is estimated by the difference in sonic velocity before and after thermal cycling.

1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

This test method indicates the ability of a refractory product to withstand the stress generated by sudden changes in temperature.

Because the recommended furnace temperature of this cycling test is 1200°C (2190°F), this test method may not indicate the ability of a refractory product to withstand cycling at higher or lower temperatures, especially if the existing morphology of the refractory product changes.

This test method is useful for research and development, as well as for comparing refractory products. The precision should be considered when using this test for specification purposes.

SDO ASTM: ASTM International
Document Number C1171
Publication Date March 1, 2011
Language en - English
Page Count 4
Revision Level 05(2011)
Supercedes
Committee C08.02
Publish Date Document Id Type View
Nov. 1, 2016 C1171-16 Revision
Oct. 1, 2015 C1171-15 Revision
May 1, 2005 C1171-05 Revision
Jan. 1, 1996 C1171-96 Revision
Feb. 1, 2022 C1171-16R22 Reaffirmation
March 1, 2011 C1171-05R11 Reaffirmation
May 10, 2003 C1171-96R03 Reaffirmation