Análise Das Propriedades Físicas E Mecânicas Das Argamassas Autonivelantes Para Contrapiso Utilizadas Em Obras De João Pessoa- PB.

Abstract

In the context of the urgency for productivity research, self-leveling mortar arrives at the Brazil as an alternative technique for the execution of subfloors or fillings. Its about cement-based mortar, characterized by its fill in the blanks and self-thicken only under the effect of gravity and your own flowability and without any significant separation of its constituents. Because they are pumpable, they eliminate problems with vertical transport and are easy to which promotes yields of up to 500m² per man day. However, reports of experiences by companies in the João Pessoa market give the large self-leveling mortar index of rework and pathologies. These reports encouraged the investigation of physical and mechanical properties of these mortars, which do not have a specific standard in Brazil. The data showed that the degree of satisfaction after the use of mortar self-leveling as a subfloor has been increasing. This may be the result of good results obtained after the tests, of the mechanical properties in the hardened state. However, these still lack fluency and consistency, evidencing the need to studies and a normalization in force in the country.