| On the Standardisation of A Method for
Determining Abrasion Resistance of Refractories |
S. K. DAS, 1. R. BISWAS AND N. R. SIRCAR
Pages : 87-95
DOI : 10.1080/0371750X.1978.10840679 |
| Abstract |
| The investigation was undertaken with a view to ascertaining
the feasibility of determining reproducible results on
abrasion resistance of refractories. Attempts for designing
standard instrument are, so far, based on the relatively
simple method of impingement of abrasive grain on the test
specimen. Numerous variables associated with this method
render it difficult to obtain accurate data. However, in consideration
of the relative advantage of fabrication, and the
ease of conducting experiments, one such apparatus was
installed at CGCRI essentially as per BS method.
Keeping other variables, e.g. type of abrasive, rate of
abrasive-feed and air velocity constant, impingement with
abrasives of relatively finer fractions provided an improvement
of reproducibility in terms of material loss. The
samples included in this investigation comprise aluminosilicate,
silica, basic and carbon bricks. An attempt was
made towards correlating abrasive resistance with such
properties as porosity, bulk density, cold crushing strength,
tensile strength, modulus of rupture and modulus of elasticity
in addition to textural aspects. |
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