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Significance and Use
3.1 This practice is useful for producing uniform specimens of refractory plastics and ramming mixes for use in standard ASTM tests. Samples thus formed may be used for referee testing when setting specifications between producer and user. Establish by mutual agreement and specify in the report the forming parameters such as sample size, workability, and forming pressure when referee testing.
3.2 This practice is applicable for preparing test specimens of various sizes. Note that 9 by 41/2 by 21/2 in. (228 by 114 by 64-mm) samples, because of their large cross-section, have a greater tendency to form flaws during pressing, handling, and drying than smaller cross-sectional samples.
3.4 Variations in workability as determined by Test Method C181 can significantly affect the number of flaws contained in a specimen. Establish by mutual agreement the workability level when comparing tests between two laboratories.
1.1 This practice covers the pressing and drying of chemically and non-chemically bonded alumin-silicate and high alumina plastic and ramming mix refractory specimens classified in accordance with Classification C673.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C179 Test Method for Drying and Firing Linear Change of Refractory Plastic and Ramming Mix Specimens
C181 Test Method for Workability Index of Fireclay and High-Alumina Refractory Plastics
C673 Classification of Fireclay and High-Alumina Plastic Refractories and Ramming Mixes
ICS Number Code 81.080 (Refractories)
ASTM C1054-13, Standard Practice for Pressing and Drying Refractory Plastic and Ramming Mix Specimens, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top