|About this Abstract
||Materials Science & Technology 2019
||Late News Poster Session
||P3-47: Evaluation of Printability of Ecoefficient Cement Compositions Using Different Rheological Methods
||Heitor Montefusco Bernardo, Estevão de Carvalho Laurito, Alexandre Cordeiro Santos, Valdecir Ângelo Quarcioni, Roberto Cesar Cesar de Oliveira Oliveira Romano, Rafael Giuliano Pileggi
|On-Site Speaker (Planned)
||Roberto Cesar Cesar de Oliveira Oliveira Romano
The civil construction sector is responsible for more than 50% of the extraction of raw materials, a value that is increasing due to the need for infrastructure and deficits of homes. Solutions that involve low environmental impacts and low risks to ergonomics, associated with high productivity, will be global trends. So, the use of 3D-additive manufacturing is growing up, because is fast and it is possible to produce high-performance components, with no need for molds, reducing the amount of waste. However, it is a common practice the use of compositions with large consumption of cement, representing considerable environmental impact due to the CO2-released. In this work, compositions with different cement consumption were evaluated using squeeze-flow and Benbow-Bridgwater methods, to comprehend the rheological parameters before the production of components using the 3D-print method. The results show that is possible to produce components with adequate fresh performance associated with low binder content.