Setting of dimension stones: study of the tack with adhesive mortar / Fixação de placas de rochas ornamentais: estudo da aderência com argamassa colante

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

In coverings of walls the setting of dimension stones can be made with metallic inserts or by tack with mortar. In the nestings with mortar the values of tack, for norm, must be superior the 1 MPa and the maximum height of covering cannot exceed 3 m. In the present work, assays with floor tiles of three types of "granites" had been made to compare the tack of the existing mortar in the market, specific for these granites, with a adhesive mortar for porcelain, of same cost of production, developed for researchers of the Department of Architecture of the School of Engineering of São Carlos of the University of São Paulo. The chosen stones had been "Vermelho Brasília" (sienogranite), "Verde Labrador" (charnockite) and "Preto Indiano" (migmatite) they present petrographics analysis and saw different, what implies in distinct values of the rugous of plates gotten for the unfolding of the blocks in sewing presses, that use grain of steel as abrasive element. The tack of plates of these stones with mortar was determined in such a way in the rugose face as in the polishing face by way of the assay of pulling up for traction, prescriptive for ceramics. The results had shown that the tack of mortar is related to the rugous and mineralogy/texture for these stones. The tack gotten for the developed adhesive mortar for porcelain was approximately two times superior the found one for commercial mortar, showing its excellent quality for the nesting of "granite" plates.

ASSUNTO(S)

argamassa colante rochas ornamentais adhesive mortar cimento dimension stones cement

ACESSO AO ARTIGO

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