Measurements and Models for the Gravity Concentration of C&D Waste Through Jigging

Title: Measurements and Models for the Gravity Concentration of C&D Waste Through Jigging
Author(s): Müller
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 115 - 122
Total Pages: 8
Nb references: 6
Language: English

Abstract: The process of gravity concentration through jigging is known since centuries and is used
mainly in the mining and gravel industry. In the last few years a fresh impetus was given to
this method by the (forced) recycling of building materials and other wastes. With these new
fields of application of the jigging process open up.
The insufficient state of knowledge about the wet gravity concentration and the application of
the process for changed problems were the reason for this research work. The aim was to
capture the current state of knowledge in the field of gravity concentration, to generate
experimental data and to develop a mathematical model for the prediction of jigging results
and for the design of jigs.
During the current research work the jigging was realized in order to investigate the influence
of the waveform of the pulsation on the stratification. The experiments were carried out on a
test track especially made for this research work. Mainly symmetrical and asymmetrical
vibrations with a fast acceleration phase and a slow phase of consolidation were used.
The generated data form the basis of the model, which will be represented in the lecture. It
can be shown how the stratification can be modelled and how therefore jigging processes can
be predicted and optimized.

Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.013