Estudo de dosagem de concreto seco para aplicação em blocos com utilização de agregados reciclados: uma abordagem teórica

Abstract

The construction industry is a significant indicator of a nation's economic and social progress. However, it is also responsible for considerable environmental impacts, and the waste generated has been a significant challenge for society. Moreover, the use of this waste in the production of dry concrete blocks has been shown to be a viable and sustainable alternative for the construction industry in Brazil. However, the dosing methods for this type of block are still considered technological gaps. Therefore, this study aimed to analyze various works on dosing methods for dry concrete production using recycled aggregates, originating from construction and demolition waste (CDW), in the composition of blocks. The literature review was based on surveys of reference studies on dry concrete, recycled aggregates, dosing methods, and concrete blocks. As a result of this study, the main parameters that directly affect the dosing and proposed properties of dry concrete were highlighted. In addition, comparisons were made between the different methods studied, focusing on their advantages, disadvantages, and main applications. Thus, it was possible to conclude that the choice of dosing method for dry concrete blocks with recycled aggregates should take into account the characteristics of the project, the equipment used, the materials available, as well as the advantages and disadvantages of each existing method option. Finally, this initial evaluation is necessary to choose a specific method that best fits each production type. However, although the research does not cover all the existing literature on the subject, the reviewed articles serve as a knowledge base for this purpose and can assist future studies on the subject.