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Alkali-activated binder containing wastes: a study with rice husk ash and red ceramic


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Geraldo, R. H. et Ouellet-Plamondon, C. M. et Muianga, E. A. D. et Camarini, G.. 2017. « Alkali-activated binder containing wastes: a study with rice husk ash and red ceramic ». Cerâmica, vol. 63, nº 365. p. 44-51.

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In addition to several positive aspects in technical properties, geopolymeric binders have considerable advantages in the environmental point of view, with lower energy consumption and lower CO2 emission. In this study, it was conducted an overview about the utilized materials by some Brazilian researchers in geopolymers production, and also an experiment employing two types of wastes (red ceramic waste and rice husk ash). The compressive strength of the resulting material developed very fast, reaching a value of 11 MPa after one day. The microstructure was evaluated by scanning electron microscopy, revealing a compact microstructure and the presence of starting materials from the red ceramic waste that not completely reacted. The results indicated the feasibility of producing geopolymeric material without using commercial sodium silicate and cured at room temperature, showing an option for building materials production with lower environmental impacts.

Type de document: Article publié dans une revue, révisé par les pairs
Ouellet-Plamondon, Claudiane
Affiliation: Génie de la construction
Date de dépôt: 03 avr. 2017 18:06
Dernière modification: 07 avr. 2017 15:43

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