New testing methodology for the quantification of rock crushability: Compressive crushing value (CCV)
| Autor: | Ekin Köken, Ahmet Özarslan |
|---|---|
| Přispěvatelé: | Zonguldak Bülent Ecevit Üniversitesi |
| Rok vydání: | 2018 |
| Předmět: |
0211 other engineering and technologies
hard rocks 02 engineering and technology engineering.material 010502 geochemistry & geophysics 01 natural sciences crushability Brittleness Geochemistry and Petrology jaw crusher Materials Chemistry Crushed stone Geotechnical engineering Mineral processing 021101 geological & geomatics engineering 0105 earth and related environmental sciences Aggregate (composite) Mechanical Engineering Size reduction rock strength Metals and Alloys Crusher aggregate Compressive strength crushed stone Mechanics of Materials engineering Plant design Geology |
| Zdroj: | International Journal of Minerals, Metallurgy, and Materials. 25:1227-1236 |
| ISSN: | 1869-103X 1674-4799 |
| DOI: | 10.1007/s12613-018-1675-7 |
| Popis: | Crushing is a size reduction process that plays a key role in both mineral processing and crushing–screening plant design. Investigations on rock crushability have become an important issue in mining operations and the manufacture of industrial crusher equipment. The main objective of this research is to quantify the crushability of hard rocks based on their mineralogical and mechanical properties. For this purpose, the mineralogical, physical, and mechanical properties of various hard rocks were determined. A new compressive crushing value (CCV) testing methodology was proposed. The results obtained from CCV tests were compared with those from mineralogical inspections, rock strength as well as mechanical aggregate tests. Strong correlations were found between CCV and several rock and aggregate properties such as uniaxial compressive strength (UCS), the brittleness index (S20), and aggregate impact value (AIV). Furthermore, the relationship between the mineralogical properties of the rocks and their CCVs were established. It is concluded that the proposed testing methodology is simple and highly repeatable and could be utilized as a pre-design tool in the design stage of the crushing process for rock quarries. © 2018, University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature. Bülent Ecevit Üniversitesi: 2016-98150330-01 This work was financially supported by Zonguldak Bülent Ecevit University (No. 2016-98150330-01). |
| Databáze: | OpenAIRE |
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