| Issue |
MATEC Web Conf.
Volume 274, 2019
RICON17 - REMINE International Conference Valorization of Mining and other Mineral Wastes into Construction Materials by Alkali-Activation
|
|
|---|---|---|
| Article Number | 02001 | |
| Number of page(s) | 6 | |
| Section | Characterization of AAM, Such as Microstructure and Physical Properties | |
| DOI | https://doi.org/10.1051/matecconf/201927402001 | |
| Published online | 22 February 2019 | |
Stabilisation of high-sulphide tailings with alkali activated fly ash – mechanical performance
1
University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
2
University of Minho, 4800-058 Guimarães, Portugal
3
Instituto de Ciencias de la Construcción ‘Eduardo Torroja’, 28033 Madrid, España
4
SOMINCOR, S.A., 7780-909 Castro Verde, Portugal
* Corresponding author: ncristel@utad.pt
Mine tailings could represent a step forward in terms of the quality of the aggregates that usually accepted in civil engineering applications, due to their specific weight and compressive strength. The Neves-Corvo copper mine produces approximately 3 million tons of tailings every year, which could supply several construction works, at least in the south of Portugal. Nevertheless, this industrial waste requires stabilisation, not only due to their high sulphur content, but also due to mechanical performance demands. This paper focus on the stabilisation, without previous thermal treatment, of the mine tailings from Neves-Corvo.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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