Adhesion of ceramic plates with geopolymer

Autores: Rego, S.R. do|Gomes, K.C.|Leal, A.F.|Barbosa, N.P.|Torres, S.M.|Barros, S. de
Fuente: 1st Brazilian Symposium on Functional and Structural Materials, FUNCMAT 2009. Uetikon-zuerich: Trans tech, 2010. (Materials science forum; 643)
pp. 139-142

The detachment of ceramic tiles from buildings is a problem that still persists in several modern constructions. Although there are several specific techniques for the prevention of tiles from detaching this issue still requires in-depth research in order to be fully solved. These detachments happen commonly in facades that are submitted to the incidence of solar rays on the surfaces. In this work, the adhesion of porcelanate-adhesive-substrate was investigated through direct detachment tests according to Brazilian standards. Two types of adhesives were used: a commercial adhesive, classified by Brazilian standard as being of high adhesion (ACIII-E) and a geopolymer, developed through alkaline activation of metakaolin with sodium silicate. The bonded systems were submitted to two temperature exposure regimes. In general, geopolymeric adhesives had better adhesion than the systems bonded with ACIII-E adhesive mortar, especially with temperature increase

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