Evaluación Mecánica y Ambiental del Uso de Ceniza Volante con Activación Alcalina como Alternativa de Reemplazo Total del Cemento en la Elaboración de Tabletas Prefabricadas.

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    • Alternate Title:
      Mechanical and Environmental Assessment of the Use of Fly Ash with Alkaline Activation as an Alternative to Total Replacement of Cement in the Manufacture of Prefabricated Tablets.
    • Abstract:
      La presente investigación está orientada a la implementación de ceniza volante activada alcalinamente como sustitución total del cemento Portland en la elaboración de tabletas prefabricadas. El programa experimental comprendió la caracterización fisicoquímica de materias primas, hallazgo de la relación óptima activador alcalino/ceniza volante y ensayos mecánicos de resistencia a la compresión y módulo de rotura. Adicionalmente se incluyó un comparativo de la huella de carbono de un lote de tabletas prefabricadas de mortero de cemento Portland y ceniza volante. La activación de ceniza volante se realizó por medio de la combinación de activadores alcalinos compuestos por NaOH y Na2SiO3. Los resultados demostraron que los morteros de ceniza volante presentan buenas propiedades mecánicas y viabilidad ambiental en términos de huella de carbono. La ceniza volante puede ser acogida en la industria de tabletas prefabricadas como opción de menor impacto ambiental con óptimas resistencias a la compresión y módulo de rotura. [ABSTRACT FROM AUTHOR]
    • Abstract:
      The present investigation is focused on the implementation of alkaline activated fly ash as a total replacement of Portland cement in the manufacture of prefabricated tablets. The experimental program included the physico-chemical characterization of raw materials, finding the optimum alkaline activator/fly ash ratio and mechanical tests of compressive strength and rupture modulus. Additionally, a comparison of the carbon footprint of a batch of prefabricated tablets made from Portland cement mortar and fly ash was also performed. The activation of the fly ash was carried out by means of the combination of alkaline activators composed of NaOH and Na2SiO3. The results obtained showed that fly ash mortars have good mechanical properties and environmental viability in terms of carbon footprint. The fly ash can be used in the industry of prefabricated tablets as an option of lower environmental impact with optimal resistance to compression and rupture modulus. [ABSTRACT FROM AUTHOR]
    • Abstract:
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