Estudo comparativo dos parâmetros de caracterização tecnológica em rochas ornamentais e de revestimentos resinadas e não resinadas

Abstract

For intermediate analysis and technological characterization tests conducted on samples of resinated and non-resinated rocks with distinct structural and geological characteristics, we sought to verify the effectiveness of the resin with respect to physical and mechanical resistance of these rocks, as well as evaluating the reduction of agents that produce the same changes and pathology. The investigation of this research has focused on three types of rocks: the first refers to a commercially called White granite Blizzard, which is an isotropic rock with some degree of fracture, equigranular texture and average grain size of the fine and the second was represented petrographically for a garnet-biotite-musvovita roughly gnaissificado, commercially known as Casa Blanca, having a coarse-grained, with lineations and foliations with a high presence of micaceous minerals, and the third is a volcanic rock, trade name Wood Stone, material considered exotic because of their textural heterogeneity, with a high degree of fissuring, having very fine grain. After the results of tests and analysis, they were correlated and evaluated the effectiveness of the resin, being featured in that it produces significant improvements in physical and mechanical resistance of these rocks, especially regarding the levels of porosity and water absorption, which are the gateway of the causative agents of change and generations of pathologies in ornamental and coating. Research has shown that materials with restricted use, or even inappropriate to certain environments, due to its physical and mechanical resistance, using the resin, the same could be used without restrictions. The importance of testing materials whose marketing is made using resin was evident due to changes often significant parameters of the results of characterization of technology, which serve as reference in the specification suitable for use as coating materials or ornamental, the construction works.The apparent porosity and water absorption were reduced by 9, 7% and 91.46% respectively after the material is resin.