CARBONATAÇÃO DE ARGAMASSAS MISTAS PRODUZIDAS COM REJEITO DE MINÉRIO DE FERRO

Abstract

The state of Minas Gerais is the second largest iron ore producer in Brazil and in 2019, it was responsible for 39% of the country’s iron ore production. This work aimed to evaluate carbonation and CO2 capture potential in mixed coating mortars, in 1:2:9 and 1:1:6 mixes, produced with iron ore tailings (IOT), calcined at 500 degrees and in natura, in replacement of cement CP IV, at levels of 0%, 10% and 20%. For this, mechanical and natural carbonation tests were carried out. The results indicate the feasibility of incorporating IOT into mortars without harming their durability.