Influence of nano-SiO2 and nano-Al2O3 additions on steel-to-concrete bonding

摘要

The research on nanoparticles is quite recent and potentially relevant in different contexts, including the concrete field. Fiber reinforced concrete presents several advantages, one of which its capacity to best control cracking. In this scope, the bond between steel rebars and/or fibers and the binding paste plays a most relevant role. The study herein described was developed aiming at analyzing the influence on the latter, and as a consequence on cracking, of nano-Al2O3 and nano-SiO2 additions.