Comparative Study of Magnesium By-Products and Vermiculite Formulations to Obtain Fire Resistant Mortars
There exists an increasing concern about the dangers originated in a building in case of fire. In this work the behaviour of vermiculite as aggregate in fireproof mortars was compared with mortars formulated with two magnesium by-products aggregates which undergo an endothermic decomposition. Fire resistance and mechanical properties were evaluated. An optimal mixture of both magnesium by-products as aggregates allows formulating mortars that improve fire resistance at temperatures greater than 450 °C compared with vermiculite mortars. It would be interesting to obtain mortars formulated with magnesium by products and vermiculite to study possible synergic effects.
António Torres Marques, António Fernando Silva, António Paulo Monteiro Baptista, Carlos Sá, Fernando Jorge Lino Alves, Luís Filipe Malheiros and Manuel Vieira
J. Formosa et al., "Comparative Study of Magnesium By-Products and Vermiculite Formulations to Obtain Fire Resistant Mortars", Materials Science Forum, Vols. 587-588, pp. 898-902, 2008