CARBONATAÇÃO NATURAL EM CONCRETO COM RESÍDUO DO BENEFICIAMENTO DE ROCHAS ORNAMENTAIS EM SUBSTITUIÇÃO AO AGLOMERANTE

Abstract

This work evaluated the influence of partial replacement of Portland cement by residue from ornamental stone processing in the concrete carbonation process in a natural environment in the cities of Pelotas/RS and Rio Grande/RS. The residue was used in proportions of 5%, 7.5% and 10% replacement in mass to cement. The results showed differences between the reference mix and concrete with residue, and differences between cities, with Rio Grande presenting the lowest carbonation averages.