Investigação da viabilidade técnica da produção de argamassa com dióxido de carbono incorporado

Abstract

International autonomous and business entities, as the International Energy Agency (IEA) and the World Business Council for Sustainable Development (WBCSD), joined by many countries, have acted searching for measures to cease the greenhouse gases emissions in an attempt to attend the drawn goals until 2050. Included on, the cement industry, as a contributor to the carbon dioxide (CO2) releases to the atmosphere, has been searching for innovate technologies to increase the material and its lifecycle efficiency and to reduce its harmful environment effects. This study aims to recreate mortars with carbon dioxide additions technology during its production, while a fresh wet mix, as well as to analyse the carbonation effects over the mixture properties. Mortars were produced with different CO2 contents after studies developed over the analog injection system to define the emitted mass flow . Afterwards, laboratory trials were performed to test and compare the obtained results and its properties. In conclusion, after analysing the data it was possible to conclude that some mortars presented porosity reduction, without significant increase of compressive strength. It’s quite important to develop new researches based on this study line on Brazil, adopting new methods and different types of investigation, since the recent, scarce and promising researches.