Based mortars cullet / blast furnace slag, glass mechanochemical activation in alkaline solutions
DOI:
https://doi.org/10.5377/nexo.v24i2.657Keywords:
waste glass, blast furnace slag, mechanochemical activationAbstract
Composite cements of Blast Furnace Slag (EAH) and Waste Glass (WG) were investigated. A fraction WG was subjected to mechanochemical activation aiming to solubilize its SiO4 to obtain solutions of sodium silicate (SS) with silica modulus greater than zero to improve the compressive strength of the cements. With the solutions obtained by AMQ, composites of 0 to 100% WG were prepared, and as referred to cements 100% BFS with standard alkaline activation. The strength of the latter decreased after increasing the Na2O content and decreased when the curing temperature was increased to 60oC. In contrast, 100% WG cements required very aggressive chemical activation conditions (12% Na2O at 60°C) to obtain good mechanical properties. The composites with 25 and 50% WG required activation conditions similar to those 100% EAH cements, while those cements with 75% WG required activation conditions similar to those of 100% WG.
Keywords: waste glass, blast furnace slag, mechanochemical activation.
Downloads
1289
Downloads
How to Cite
Issue
Section
License
The authors who publish in Nexo Scientific Journal agree to the following terms:
- Authors retain the copyright and grant the journal the right of the first publication under the license Creative Commons Attribution License, which allows others to share the work with a recognition of the authorship of the work and the initial publication in Nexo Scientific Journal.
- Authors may separately establish additional agreements for the non-exclusive distribution of the version of the work published in the journal (for example, in an institutional repository or a book), with the recognition of the initial publication in Nexo Scientific Journal.
- Authors are allowed and encouraged to disseminate their works electronically (for example, in institutional repositories or in their own website) before and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published works.
