ASTM C181-09
Standard Test Method for Workability Index of Fireclay and High-Alumina Plastic Refractories

Standard No.

ASTM C181-09

Release Date

2009

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C181-11

Latest

ASTM C181-11(2018)

Scope

Workability index serves as a measure of the facility with which plastic refractory materials can be rammed, gunned, or vibrated into place.

Workability index is commonly used to control consistency of plastics during manufacture. It has also been found useful for specification acceptance by the consumer.

The workability index determination can provide information for developing a plastic body. When a sample splits under impact at various water contents, it is an indication that the material is “short” or lacking in plasticity.

Determinations on samples that split during impact will be difficult to reproduce. If the sample splits, the measurement is not a true indication of deformation. This should be noted in the report.

1.1 This test method covers the determination of the workability index of fireclay and high-alumina plastic refractories by measuring the plastic deformation of a molded test specimen when subjected to impacts.

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.

ASTM C181-09 Referenced Document

• ASTM D2906 Standard Practice for Statements on Precision and Bias for Textiles

ASTM C181-09 history

• 2018 ASTM C181-11(2018) Standard Test Method for Workability Index of Fireclay and High-Alumina Refractory Plastics
• 2011 ASTM C181-11 Standard Test Method for Workability Index of Fireclay and High-Alumina Refractory Plastics
• 2009 ASTM C181-09 Standard Test Method for Workability Index of Fireclay and High-Alumina Plastic Refractories
• 2003 ASTM C181-03 Standard Test Method for Workability Index of Fireclay and High-Alumina Plastic Refractories
• 1991 ASTM C181-91(1997)e1 Standard Test Method for Workability Index of Fireclay and High-Alumina Plastic Refractories