Morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas.
<p>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 SiO<sub>4</sub> to obtain solutions of sodium silicate (SS) with silica modulus greater than zero to improve t...
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doaj-96a370c1b4834a2a85368edfb0780bd12020-11-25T02:26:31ZengUniversidad Nacional de IngenieríaNexo1818-67421995-95162011-06-01240292103http://dx.doi.org/10.5377/nexo.v24i2.657Morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas.J. Ivan EscalanteLester J. Espinoza Pérez<p>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 SiO<sub>4</sub> 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 Na<sub>2</sub>O content and decreased when the curing temperature was increased to 60<sup>o</sup>C. In contrast, 100% WG cements required very aggressive chemical activation conditions (12% Na<sub>2</sub>O at 60<sup>o</sup>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.</p> <p> </p> <p>Keywords: waste glass, blast furnace slag, mechanochemical activation.</p><p> </p>http://www.lamjol.info/index.php/NEXO/article/view/657/487waste glassblast furnace slagmechanochemical activation. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
J. Ivan Escalante Lester J. Espinoza Pérez |
spellingShingle |
J. Ivan Escalante Lester J. Espinoza Pérez Morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas. Nexo waste glass blast furnace slag mechanochemical activation. |
author_facet |
J. Ivan Escalante Lester J. Espinoza Pérez |
author_sort |
J. Ivan Escalante |
title |
Morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas. |
title_short |
Morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas. |
title_full |
Morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas. |
title_fullStr |
Morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas. |
title_full_unstemmed |
Morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas. |
title_sort |
morteros a base de vidrio de desecho/escoria de alto horno; activación mecanoquímica del vidrio en soluciones alcalinas. |
publisher |
Universidad Nacional de Ingeniería |
series |
Nexo |
issn |
1818-6742 1995-9516 |
publishDate |
2011-06-01 |
description |
<p>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 SiO<sub>4</sub> 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 Na<sub>2</sub>O content and decreased when the curing temperature was increased to 60<sup>o</sup>C. In contrast, 100% WG cements required very aggressive chemical activation conditions (12% Na<sub>2</sub>O at 60<sup>o</sup>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.</p> <p> </p> <p>Keywords: waste glass, blast furnace slag, mechanochemical activation.</p><p> </p> |
topic |
waste glass blast furnace slag mechanochemical activation. |
url |
http://www.lamjol.info/index.php/NEXO/article/view/657/487 |
work_keys_str_mv |
AT jivanescalante morterosabasedevidriodedesechoescoriadealtohornoactivacionmecanoquimicadelvidrioensolucionesalcalinas AT lesterjespinozaperez morterosabasedevidriodedesechoescoriadealtohornoactivacionmecanoquimicadelvidrioensolucionesalcalinas |
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