CHEMICAL-MINERALOGICAL SORTING OF MINERAL CONSTRUCTION AND DEMOLITION WASTES FOR A BETTER RECOVERY AGAINST THE STATE-OF-THE-ART

Author(s): M. Landmann, I. Döring, L. Raumann, E. Linß, A. Müller, U. Palzer
Book Title: III Progress of Recycling in the Built Environment
Editor: I. Martins, C. Ulsen and S. C. Angulo
e-ISBN: 978-2-35158-158-2
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 59-66
Total Pages: 9
Language: English

Abstract: One means of bringing recycled construction materials back into the materials cycle is to reuse them as feedstock in production. To establish a closed-loop cycle in this sector it is necessary to ensure a sufficient purity of crushed and sorted recycled material. The increasing material diversity in mineral construction and demolition wastes (C&DW) as well as the arrival of more complex composite materials and structures requires sophisticated approaches to mineral processing in the construction sector. One approach for achieving better recovery of usable materials from mixed C&DW is presented in this paper. Higher product quality of recycled materials could be achieved through the implementation of modern, automatic sorting techniques in C&DW recycling that can differentiate between materials based on their chemical-mineralogical characteristics, especially for the middle-sized fractions 4/45 mm and the recycled sands 0/4 mm.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00