DETERMINATION OF THE EFFECT OF ROCK ABRASIVENESS ON GRINDABILITY USING THREE DIFFERENT EXPERIMENTAL METHODS
Cagri Aldi
article (Uluslararası, Hakemli) | Yazar(lar): Cagri Aldi | Yıl: 2025 | Dergi/Kurum: ACTA GEODYNAMICA ET GEOMATERIALIA | İndeks: WOS.SCI | DOI: 10.13168/agg.2025.0028 | Anahtar Kelimeler: Hardgrove Grindability Index (HGI), Abrasiveness, Cerchar, Schimazek, Norwegian Abrasion — Özet: The abrasiveness characteristics of
The abrasiveness characteristics of rocks are a crucial rock property that directly affect cutter design, wear, machine efficiency, rock grindability, and project costs. The primary objective of this study is to investigate the relationship between rock abrasiveness indices and grindability using three different experimental methods: Cerchar, Norwegian Abrasion, and Schimazek tests. These indices serve as widely recognized proxies for evaluating the potential wear behavior of rocks on excavation tools. In this context, six different metamorphic-origin rocks collected from various regions of Turkey were analyzed. Within the scope of the study, data obtained from the Hardgrove Grindability Index (HGI) test were compared with abrasion values obtained from widely used experimental methods in the literature, such as the Cerchar Abrasivity Index (CAI), Schimazek Abrasivity Index (F), and the Norwegian Abrasion Test (AV). Statistical evaluations conducted on the obtained results revealed strong correlations between HGI and CAI, AV and F with R2 values of 0.75-0.86-0.85 respectively.