RESEARCH ARTICLE
Lithium Aluminosilicate Residue as Raw Material in the Production of Sustainable Concrete Masonry Units: A Brazilian Case
Paulo H. R. Borges*, Flávio A. Santos, Nina Milikic, Francisco J. Belieny Jr., Christiano A. Barsante
Article Information
Identifiers and Pagination:
Year: 2016Volume: 10
Issue: Suppl 3: M5
First Page: 418
Last Page: 430
Publisher ID: TOBCTJ-10-418
DOI: 10.2174/1874836801610010418
Article History:
Received Date: 30/4/2015Revision Received Date: 20/5/2015
Acceptance Date: 5/11/2015
Electronic publication date: 28/06/2016
Collection year: 2016
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Abstract
Spodumene (LiAlSi2O6) is a natural occurring mineral which is processed to produce lithium carbonate (LiCO3) and lithium hydroxide (LiOH), both used for several industrial and medical applications. The processing of spodumede generates a lithium aluminosilicate residue with no commercial value in Brazil, which is therefore landfilled. This paper studied the effect of the partial replacement of Portland cement (PC) in the production of sustainable concrete masonry units (CMU) for construction. The residue was thoroughly characterized and its interaction with PC was also assessed. Several mixes of CMU were manufactured and compared with a reference mix (without residue). Results indicated that the lithium aluminosilicate is highly reactive and may replace PC in the concrete formulations.