The purpose of that work was to obtain a lightweight mortar for use in the civil construction through the combined addition of micropore chemical formers and industrial residues. Recently, the lightweight mortar technique has been pointed out as an alternative for the construction of light structures, where the commitment of the mechanical resistance associated with the climate actions, such as physical-chemical degradation caused by environmental actions, do not represent basic requirements for civil construction that could restrain the use of low density mortar, with micropore controlled structure. The work analysed the influence of additives adapted for the formation of stable bubbles, and in some cases, the use of mechanical resistance promoters for compensating losses in the resistance due to excessive presence of bubbles. The evaluation of the method of preparation the lightweight mortar that include the mixture mechanism, additives, development of microstructure and properties are correlated, seeking to obtain appropriate composition to use in the production of light structures.
Portland cement; lightweight mortar; microporosity
