Evaluation of The Influence of Rice Husk Bio-oil Use, as an Addition for Structural Concrete

This work seeks to evaluate the influences of the addition of rice husk bio-oil in the concrete mixture for structural purposes. In the first stage of the research, through the pyrolysis process, the fraction of bio-oil was obtained and in a second moment, its addition to the cement paste and the concrete mixture. With the use of oil obtained from rice husk, it was aimed to analyze the effects generated in cement paste and concrete in the fresh and hardened states, consequently seeking to evaluate the potential of the liquid as a surfactant addition to concretes. The study embraces the analysis of the physical and mechanical properties of the concrete mixt with the addition of the bio-oil. The results indicate that these properties undergo changes, which may enable the use of its by-product.