ESTUDO DA VIABILIDADE TÉCNICA DO CONCRETO AUTOADENSÁVEL COM A APLICAÇÃO DA CINZA DO BAGAÇO DA CANA-DE-AÇÚCAR

Abstract

Although the country's development is correlated with the advancement of the civil construction industry, this activity causes environmental impacts, due to the increase in cement production. A mitigating measure is the replacement of Portland cement with alternative materials. Therefore, this work aims to study the sugarcane bagasse ash from the Bioenergética Plant, as a partial substitute for Portland cement in the preparation of self-compacting concrete. The experimental procedure was carried out from the reference line 1: 2.15: 2.12: 0.38 obtained experimentally through the measurement of Nan Su et. al. (2001), with the addition of 0.7% superplasticizer additive and with the required resistance of 40MPa. The experimental procedure was carried out from the reference line 1: 2.15: 2.12: 0.38 obtained experimentally through the measurement of Nan Su et. al. (2001), with the addition of 0.7% superplasticizer additive and with the required resistance of 40MPa. The result obtained through the X-Ray Fluorescence tests and the Pozzolanic Activity Index confirm the reactivity of the ash, proving its employability as a pozzolanic material in the scope of civil construction. The study carried out in the fresh state showed workability and adequate visual stability within the standards of technological control, enabling the reuse of the residue within the most diverse applications. Upon the evaluation of the mechanical behavior, both percentages of substitution of ash from sugarcane bagasse showed efficacy, however, the trace with substitution of 10% of ash obtained a better performance over time.