Pozzolanic Characterization of Cuban Bamboo Leaf Ash: Calcining Temperature and Kinetic Parameters
作者： Ernesto Villar Cociña , Holmer Savastano , Loïc Rodier , Manuel Lefran , Moisés Frías
DOI: 10.1007/S12649-016-9741-8
关键词: Chemical engineering 、 Activation energy 、 Lime 、 Bamboo 、 Materials science 、 Pozzolanic activity 、 Scanning electron microscope 、 Calcination 、 Mineralogy 、 Reaction rate constant 、 Pozzolan
摘要: The paper presents a study of the pozzolanic activity Cuban bamboo leaf ash. To evaluate conductometric method was used, which is based on measurement variation in electrical conductivity ash (BLAsh)/lime solution with reaction time. Later, kinetic parameters (in particular, rate constant and free energy activation) are quantified by applying kinetic-diffusive model. quantitatively evaluated according to values obtained parameters. Other experimental techniques, such as X-ray diffraction scanning electron microscopy, complement results coming from method, were applied. Also, reports influence calcining temperature (500, 600 700 °C) activation leaves. show good properties ashes for temperatures between 500 °C, only little difference function BLAsh calcined at °C showed highest activity.
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