Estudo sobre a viabilidade da reutilização de entulhos provenientes da construção civil para criação de um novo traço de argamassa

Abstract

The present work presents a feasibility study for the creation of a new mortar trace, which, in addition to cement and fine aggregates, had in its composition materials from a civil construction work and this form would directly impact sustainability. For the experimental procedures, the experiment planning methodology was applied. There were three factors and two levels of operation. The factors were: amount of cement, amount of fine aggregates and amount of reused material, the chosen ones have the greatest impact on the optimized final project. Each factor operated at two levels (Upper and Lower) and were dimensioned per unit of mass (kg), based on the existing mortar mix, to determine the work envelope, that is, the experimental region. The general objective was to reduce the consumption of fine aggregates and cement, since the reused material is used in the preparation of the consumption studied. This way, according to the experimental design, there were eight traces with different compositions, which were consistently through the Statistica 12.5 software. An experimental region was identified that produced a trait according to the resistance standards by ABNT NBR 1/2005.