Caracterização de argamassas históricas: análise de trabalhos da Região Nordeste do Brasil

Abstract

The historic buildings has a great cutural and architectural value for a given region and so its prevention becomes very importante. The best way to preserve then is knowing the materials ans methods used in the construction period, seekning to perform a restoration using similars materials to the originals. The mortar is the more used material in this type of building, so the characterization methods are used involving tests as granulometry, water absorption, determination of the aggregate content, optical microscopy, DRX, FRX, TG e MEV, with the goal of discory the main elements that make part of it. Paper souht to analyze the other ones carried out by the civil engineering área in the northeast region of Brazil, that the objective has been the characterization of historic mortar. The types of tests were raised using the results obtained regarding the constituent materials. Besides that, sought to understand how is the intercess for this thematic of research inside of the civil engineering courses. For that searches were made on the universities repository choose and reading the papers that attended to the sought theme Were found few papers of historic mortar characterization, being a big part of then from the Universidade Federal Rural do Semi-Árido (UFERSA), in the graduation level. In this one the main tests were of low complexity, since in the others was a predominance of mor complex tests. From this tests, it was found that the studied mortars were made of lime (CaO), silica (SiO2), feldspar (KAlSi3O8) and kaolinite ((Al2Si2O5(OH)4), lime being the compound in greater quantity.