A INFLUÊNCIA DE POLÍMEROS NA ADERÊNCIA E FLEXIBILIDADE DA ARGAMASSA COLANTE
DOI:
https://doi.org/10.46421/entac.v18i.1266Keywords:
Cimentitious adhesives, Dry set mortar, Transverse deformationAbstract
The properties of the adhesive mortar depend on the mineralogical and chemical composition of the materials that constitute it. The performance of each of its properties is basically associated with the materials, the Polymer/cement ratio and the water/cement ratio. The properties of the adhesive mortar are of high importance to provide durability and functionality of the ceramic tiles, since it’s the main layer responsible for the adhesion of the ceramic tiles in the substrate. The present work theoretically discusses the classification and characterization of adhesive mortars and the influence on their deformation capacity. After the theoretical study, seven traces of adhesive mortar with varying Polymer/mortar ratio and cement/mortar ratio were developed to verify the influence of these relationships on the properties of adhesion to direct traction and transverse deformation. With the results of the tests it was found that the ratio of cement/mortar and PVAc/mortar ratio influence the deformation capacity (flexibility) of the adhesive mortar.
References
ABNT ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 14081-1: Argamassa colante industrializada para assentamento de placas cerâmicas – Parte 1: Requisitos. Rio de Janeiro, 2012.
_____. NBR 14081-4: Argamassa colante industrializada para assentamento de placas cerâmicas – Parte 4: Determinação da resistência de aderência à tração. Rio de Janeiro, 2012.
ABREU, M. et al. Modeling the Behavior of Ceramic Tile Coverings. In: VIII WORLD CONGRESS ON CERAMIC TILE QUALITY – QUALICER 2004, 2004, Castellon, Espanha. Anais... Castellon: Logui Impresion, 2004. p. P.GII-3 – P.GII-17.
ANSI. AMERICAN NATIONAL STANDARDS INSTITUTE. A118.4: American National Standard Specifications for Modified Dry-Set Cement Mortar. New York, 2019.
ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION. ISO 13007-1 Ceramic tiles --Grouts and adhesives -- Part 1: Terms, definitions and specifications for adhesives. Geneva, 2014.
_____. ISO 13007-2 Ceramic tiles -- Grouts and adhesives -- Part 2: Test methods for adhesives. Geneva, 2013.
JUNGINGER, M. Rejuntamento de revestimentos cerâmicos: influência das juntas de assentamento na estabilidade de painéis. Dissertação (mestrado) apresentado à Escola Politécnica de São Paulo. São Paulo, 2003.
MARANHÃO, F. L.; LOH, K.; JHON, V. M. The influence of moisture on the deformability of cement–polymer adhesive mortar. Construction and Building Materials. v. 25, n. 6, p. 2948-2954, 201.
MATSUSATO, M. Estudo do comportamento de argamassas colantes com aditivação de látex acrílico. Dissertação (mestrado) apresentada à Escola Politécnica de São Paulo. São Paulo, 2007.
SARAIVA, A. G. et al. Analise das Tensões entre Argamassa Colante e Placas Cerâmicas Submetidas a Esforços de Natureza Térmica. In: IV SIMPOSIO BRASILEIRO DE TECNOLOGIA DAS ARGAMASSAS – IV SBTA, 2001, Brasília, Brasil. Anais... São Paulo: Paginas & Letras Editora e Gráfica Ltda., 2001. p. 365-376.
URBAN, D.; TAKAMURA K. Polymer Dispersions and Their Industrial Applica-tions. USA: WILEYVCH. 408p. 2005.
ZURBRIGGEN, R.; HERWEGH, M. Daily and seasonal thermal stresses in tilings: A field survey combined with numeric modeling. Mater. Struct. Constr. 2016, 49, 1917–1933.