Listar por autor "Mejía Arcila, Johanna Mercedes"

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    • Evaluation of the toxicity characteristics of two industrial wastes valorized by geopolymerization process 

      Martínez López, Carolina; Mejía Arcila, Johanna Mercedes; Torres Agredo, Janneth; Mejía de Gutiérrez, Ruby
      This paper evaluates the toxicity associated with two industrial wastes used as raw material of geopolymers. These wastes are fly ash (FA) and spent catalyst catalytic cracking (FCC). The residues were characterized using ...
      Universidad Nacional de Colombia Revistas electrónicas UN Dyna. 

    • Mechanical and thermal performance of a geopolymeric and hybrid material based on fly ash 

      Vásquez Molina, Diego Alejandro; Mejía Arcila, Johanna Mercedes; Mejía de Gutiérrez, Ruby
      This article presents an evaluation of the thermal behavior of a hybrid (FA/OPC) and geopolymer (FA100) material. The FA100 system is based on fly ash (FA), which has an elevated content of unburned material (14.8%). The ...
      Universidad Nacional de Colombia Revistas electrónicas UN Dyna.