Análises e utilizações de argamassas poliméricas termoplásticas

Abstract

This study investigated the use of waterproofing systems based on thermoplastic polymers through laboratory tests and a real case study. The main objective was to analyze the effectiveness of the Acrylic Texture in terms of adhesion, watertightness, and thermal resistance, assessing its potential as an alternative to traditional methods. In the pull-off adhesion tests, the average results exceeded the minimum normative limit of 1.0 MPa at 28 days, with acrylic-painted substrates achieving values above 1.5 MPa. In the qualitative watertightness test, water repellence and lack of absorption were observed, confirming the formation of an effective hydrophobic barrier. The thermal resistance test demonstrated stability of the acrylic texture up to 80 °C, while other products showed limitations at higher temperatures. The case study, conducted in a private condominium, demonstrated the practical applicability of the BS POWER (ITE) product, manufactured by BSCRYL, applied to submerged pool walls, showing satisfactory performance after substrate repair. Among the advantages, the study highlights the ease of application, increased productivity, and optimization of labor, as well as cost reduction due to the elimination of the protective coating layer required in conventional systems. As a limitation, the absence of a specific Brazilian technical standard defining performance and testing criteria restricts the standardization and broader acceptance of this technology. It is concluded that thermoplastic polymer waterproofing systems represent a relevant innovation, contributing to more durable and cost-effective buildings, and should be considered as a viable alternative in the waterproofing of concrete structures.