Avaliação do comportamento reológico de argamassas de revestimento por meio do método do Squeeze-Flow com base no empacotamento de partículas e o teor de água da mistura

Eliziane Jubanski; Sarah Honorato Lopes da Silva Tamura; Maria Clara Cavalini Pinto; Paula Aguilar Guimarães; Marienne do Rocio de Mello Maron da Costa; Nayara Soares Klein

Rheological evaluation of rendering mortars by the squeeze flow method based on particle packing and water content of the mixture

Authors

Eliziane Jubanski Universidade Federal do Paraná https://orcid.org/0000-0003-0021-5776
Sarah Honorato Lopes da Silva Tamura Universidade Federal do Paraná https://orcid.org/0000-0002-8718-5970
Maria Clara Cavalini Pinto UFPR https://orcid.org/0000-0002-8639-7349
Paula Aguilar Guimarães Universidade Federal do Paraná https://orcid.org/0000-0003-0979-4989
Marienne do Rocio de Mello Maron da Costa UFPR https://orcid.org/0000-0002-9421-7985
Nayara Soares Klein Universidade Federal do Paraná https://orcid.org/0000-0002-7905-9608

Keywords:

rendering mortars, rheology, dosage, particle packing

Abstract

Mortars’ workability results from other properties, such as consistency, plasticity, cohesion, water retention, exudation, initial adhesion and density. A workable mortar distributes itself in application, doesn’t segregate during transport, and remains plastic during the application time. This property depends on several application factors, together with the constituent materials. Therefore, this study aims to assess the influence of the formulation, aggregate type and water content on rheological behavior of rendering mortars, combined with particle packing studies. For this purpose, three usual mortar formulations were chosen. The minimum water content was calculated through the concepts of particle packing and the squeeze flow test. As a result, the influence of each constituent on the workability of the mortar was determined, together with the formulations optimized by the aggregate type. The water content analysis revealed the wet packing density and minimum value required for the formation of the water film around the particles.