Effect of colloidal silica on the mechanical properties of fiber-cement reinforced with cellulosic fibers - Santos, Sérgio Francisco dos; Rodrigues, José Anchieta; Tonoli, Gustavo Henrique Denzin; Almeida, Alessandra Etuko Feuzicana de Souza; Savastano Júnior, Holmer (Journal of Materials Science, 2014)