Introducing the concept of mechanical texture in comminution: The case of concrete recycling

Bourgeois, Florent S., Lippiatt, Nicholas R. and Powell, Malcolm S. (2015) Introducing the concept of mechanical texture in comminution: The case of concrete recycling. International Journal of Mineral Processing, 136 7-14. doi:10.1016/j.minpro.2014.09.012

Author Bourgeois, Florent S.
Lippiatt, Nicholas R.
Powell, Malcolm S.
Title Introducing the concept of mechanical texture in comminution: The case of concrete recycling
Journal name International Journal of Mineral Processing   Check publisher's open access policy
ISSN 0301-7516
Publication date 2015-03-10
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.minpro.2014.09.012
Open Access Status
Volume 136
Start page 7
End page 14
Total pages 8
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2015
Language eng
Formatted abstract
Modern comminution research and development are mainly product driven rather than material driven. An opinion that is gaining acceptance throughout the comminution community is that it is desirable for the comminution field to evolve toward material driven process design. To this end, this paper introduces the concept of mechanical texture, which corresponds to those textural properties of materials that have a direct bearing on their mechanical and fracture properties, which in turn should be the primary target for comminution process research and equipment design. The paper shows that mass specific fracture energy Ecs is a fracture parameter that is highly sensitive to variations in material texture, leading to selecting Ecs as a sound mechanical texture index. The paper then shows that, in the case of concrete, a set of specific features of the fracture porosity that can be measured inside concrete texture correlate highly with Ecs, thereby defining mechanical texture for concrete comminution. The demonstration that it is possible to establish a direct link between textural properties of concrete and macroscopic properties relevant to comminution shows that material driven comminution process modeling and design are possible and should be encouraged.
Keyword Mechanical texture
Comminution modelin
Ore breakage characterizatio
Concrete recycling
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Official 2015 Collection
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Created: Tue, 10 Feb 2015, 11:45:06 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre