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ASTM C583-15

Current Revision

Standard Test Method for Modulus of Rupture of Refractory Materials at Elevated Temperatures

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1.1 This test method covers determination of the high-temperature modulus of rupture of refractory brick or monolithic refractories in an oxidizing atmosphere and under action of a force or stress that is increased at a constant rate.

1.2 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.

1.3 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.


3.1 Measuring the modulus of rupture of refractories at elevated temperatures has become a widely accepted means to evaluate materials at service temperatures. Many consumer companies have specifications based on this type of test.

3.2 This test method is limited to furnaces operating under oxidizing conditions. However, with modifications for atmosphere control in other test furnaces, the major criteria of this test procedure may be employed without change.

3.3 This test method is designed for progressive application of a force or stress on a specimen supported as a simple beam with center-point loading. Test apparatus designed for the progressive application of a strain may yield different results, especially since refractory materials will reach a semiplastic state at elevated temperatures where Hooke's law does not apply, that is, stress is then not proportional to strain.

3.4 This test method applies to fired dense refractory brick and shapes, chemically bonded brick and shapes, shapes formed from castables, plastics, or ramming materials, and any other refractory that can be formed to the required specimen dimension.

SDO ASTM: ASTM International
Document Number C583
Publication Date March 1, 2015
Language en - English
Page Count 4
Revision Level 15
Supercedes
Committee C08.01
Publish Date Document Id Type View
March 1, 2015 C0583-15 Revision
April 1, 2010 C0583-10 Revision
March 1, 2005 C0583-05 Revision
Oct. 10, 2000 C0583-00 Revision
Feb. 1, 2021 C0583-15R21 Reaffirmation
Sept. 1, 2009 C0583-05R09 Reaffirmation