Predicting the crushability of rocks from the impact strength index

Toraman O. Y., KAHRAMAN S., Cayirli S.

MINERALS ENGINEERING, cilt.23, sa.9, ss.752-754, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 9
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.mineng.2010.04.004
  • Dergi Adı: MINERALS ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.752-754
  • Anahtar Kelimeler: Crushing, Mineral processing, Liberation, COMPRESSIVE STRENGTH, FRAGMENTATION
  • Hacettepe Üniversitesi Adresli: Hayır

Özet

To investigate the possibility of predicting the crushability of rocks from impact strength index, twenty-four different rock types were tested in the laboratory. The crushability results were correlated with the results of impact strength test and regression analysis was performed. A strong inverse linear relation between the crushability index and the impact strength index was found. The effect of porosity and density on the correlation was also shown. In addition, multiple regression analysis including porosity and density was carried out. The significances of the derived models were statistically tested. It was concluded that the crushability of rocks can practically be estimated from the impact strength index using the simple regression model. (C) 2010 Elsevier Ltd. All rights reserved.