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Methods to Measure the Transfer Properties of Mortars

2011; Trans Tech Publications; Volume: 148-149; Linguagem: Inglês

10.4028/www.scientific.net/amm.148-149.184

2297-8941

Gladis Camarini, Valdir Moraes Pereira, Pedro Murilo Gonçalves de Freitas, Regina Andrade Tirello,

Building materials and conservation

The search for techniques and materials able to improve structure quality and durability has lead to research some methods that are able to measure the transfer properties of composites. Cement type has an important influence on mortar performance, and chemical and physical deteriorations modify microstructure, and thereby transfer properties. The aim of this work is to evaluate two methods which can measure the transfer properties of cement based materials: capillary absorption and air permeability tests in mortars produced with blastfurnace slag Portland cement. The relationship between these two methods was investigated. The mortars were submitted to steam curing (60 °C) and standard curing. Results show that steam curing improved initial compressive strength. At 28 days all mortars had the same performance. Water absorption coefficient and air permeability was higher for steam cured mortars. There was a significant correlation between both tests results.