Addition of Cellulose Nanofibers in Reactive Powder Concrete

作者:Machado F G D*; Pedroti L G; Lemes J V B; Lima G E S; Fioresi L A F; Fernandes W E H; Alvarenga R C S S; Alexandre J
来源:TMS Annual Meeting and Exhibition / Symposium on Characterization of Minerals, Metals, and Materials, 2017 To 2017.
DOI:10.1007/978-3-319-51382-9_57

摘要

Cellulose fibers are extracted from renewable sources and have potential to be used in various fields. In this study, a type of Reactive Powder Concrete (RPC) was produced with the addition of Cellulose Nanofibers (CNF), a biopolymer extracted from lignocellulosic materials. Three different concrete compositions were produced, each with addition of 0.10, 0.20 and 0.25% of CNF in mass, proportionally to the cement's mass. During the analysis were performed Scanning Electron Microscopic (SEM) tests, compressive strength and Young's modulus tests after 1, 3, 7 and 28 days of production and shear and flexural strength after 28 days of production. The results showed that the addition of CNF in aqueous solution reduces the concrete's workability and negatively affects mechanical properties.

  • 出版日期2017