INVESTIGATION OF THE RELATIONSHIP BETWEEN THE BOND GRINDABILITY TEST AND THE STATIC AND DYNAMIC STRENGTH OF ROCKS


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Umucu Y., Gürsoy Y. H.

Eskişehir Osmangazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, cilt.30, sa.1, ss.79-89, 2022 (Hakemli Dergi)

Özet

The Bond method is widely used in the design of grinding circuits in an ore preparation plant, sizing of mills, determining power requirements, determining and measuring performance, and for materials considered for comminution. Its use as a standard is very common in the industry as it provides satisfactory results in all industrial applications. The dynamic method was developed as an alternative to static methods in determining the mechanical properties of materials. There are studies investigating the static and dynamic properties of materials and revealing the relationship between these parameters. Previously, a lot of work was done between mechanical tests and grinding. However, in these studies, the relationships were only revealed with equations. Research, which is a mechanical property closest to the grinding mechanism, was not conducted. In this study, the relationship between grinding and static and dynamic compressive strength was investigated. Dynamic compressive strength was also determined by the Hopkinson dynamic test. For the first time, the relationship between grinding and compressive strength based on the Hopkinson dynamic test was demonstrated. A relationship with a value of R2:0.82 and 0.738 was obtained between grindability and compressive strength depending on the Hopkinson dynamic test.