ASTM-C673 › Standard Classification of Fireclay and High-Alumina Plastic Refractories and Ramming Mixes
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1.1 This classification covers fireclay and high-alumina plastic refractories and ramming mixes that can be pounded or rammed into place to form a monolithic structure. The terms “plastic” and“ ramming mix” are generally intended to describe the workability of the material. In this regard, plastics are considered to be materials having a workability index of more than 15 % in accordance with Test Method C181, while ramming mixes generally have less than 15 % workability by the same procedure.
classification; fireclay plastic refractories; fireclay ramming mixes; high-alumina plastic refractories; high-alumina ramming mixes; workability; ICS Number Code 81.080 (Refractories)
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1997 R13 EDITION
Sept. 15, 2013