On the standardisation of a method for determining abrasion resistance of refractories

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. © 1978, Taylor & Francis Group, LLC