Performance analysis of magnesium phosphate cement mortar containing grinding dust

• Main Authors: Daniel Véras Ribeiro, Márcio Raymundo Morelli
• Format: Article
• Language: English
• Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2009-03-01
• Series: Materials Research
• Subjects: magnesium phosphate cement (MPC,); mortar; grinding dust; mechanical strength; absorption
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392009000100005

Magnesium phosphate cement materials are formed by reacting magnesium oxide with water-soluble phosphates such as monoammonium dihydrogen phosphate (ADP), which solidifies at ambient temperature through the formation of hydrated phases in the material. Cylindrical specimens of magnesium phosphate cement were molded and varying amounts (0 to 30% weight) of grinding dust were added to the ceramic matrices. The influence of the addition of grinding dust on the characteristics of the mortars in terms of microstructure (SEM), mechanical strength and capillary water absorption was verified. The results obtained proved very satisfactory for the use of this waste as an additive in magnesium phosphate mortars.