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Importance of using joints to achieve scaled fragmentation in magnetite concrete used for sublevel caving blast models
Luleå tekniska universitet.
1990 (English)In: Engineering Fracture Mechanics, ISSN 0013-7944, E-ISSN 1873-7315, Vol. 35, no 1-3, p. 425-438Article in journal (Refereed) Published
Abstract [en]

Model scale tests have been undertaken to find a model material which can give scaled fragmentation in sublevel caving blast models where the purpose is to study the swelling and fragmentation of the burden when blasted against waste rock and also to study the gravity flow of the blasted burden when being discharged into the drift. To achieve a wished Rosin Rammler distribution of the blasted material in the blasted model, it was shown necessary to introduce weakness plans of different size and stochastic orientation in the model material. Crushed microscopic glass plates or coarse magnetite grains were used for that purpose with success

Place, publisher, year, edition, pages
1990. Vol. 35, no 1-3, p. 425-438
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-15780DOI: 10.1016/0013-7944(90)90220-BISI: A1990CQ79300044Scopus ID: 2-s2.0-44949267067Local ID: f5290d50-0c9d-11dd-9b51-000ea68e967bOAI: oai:DiVA.org:ltu-15780DiVA, id: diva2:988755
Note

Godkänd; 1990; 20080417 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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