Alvenaria de vedação em bloco cerâmico ou em bloco de gesso: estudo comparativo de custo e produtividade em residência de um pavimento

Abstract

Partition masonry, used to define spaces, can be defined as masonry that does not have the function of withstanding vertical loads, supporting only its own weight. Thus, different materials can be used for its execution, such as the most traditionally used in Brazil, the ceramic block. However, in recent decades, an alternative construction system using gypsum block has emerged in the Northeast region of Brazil, offering advantages from different perspectives. In this context, this study aimed to understand and present both vertical partition systems and their advantages and disadvantages from the perspective of cost and productivity, comparing the use of gypsum block for internal and external partitioning in single-story homes with the traditional method using ceramic block. The development of this research was based on relevant Brazilian regulatory standards related to the theme addressed in this study and recent specialized literature, with emphasis on the works of Carlos Wellington de Azevedo Pires Sobrinho (2010, 2011, and 2021). The object of study was a single-story house located in the city of Goiânia, where, through the architectural project, it was possible to determine the total area of masonry to be built, excluding all openings for frames. Data collection and the representation of results, such as cost and productivity per square meter and total, were based on reports from specialized public and private organizations, such as SINAPI (2024) and TCPO (2010 and 2017), in addition to material price quotes from some companies. It was concluded that the option with the greatest economic feasibility, considering its impact on other services that make up the construction of a residence, i.e., in the overall budget, with a shorter period for completing all masonry areas, and also reducing the project schedule by eliminating one service, which is the absence of wall coating (plastering), as it is not necessary in this system, was the model using gypsum block.