Synergic effect of fiber and matrix treatments for vegetable fiber reinforced cement of improved performance. (30th April 2019)

• Record Type: Journal Article
• Authors: Ballesteros, Julian Eduardo Mejia; Mármol, Gonzalo; Filomeno, Rafael; Rodier, Loic; Savastano, Holmer; Fiorelli, Juliano
• Is Part Of: Construction & building materials. Volume 205(2019)
• Page Start: 52
• Page End: 60
• Publication Date: 2019-04-30
• Subjects: Composites -- Durability -- Mechanical properties -- Mineralization -- Reinforcement -- Vegetal pulps; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2019.02.007
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: Hornification generates a hydrophobic fiber with better dimensional stability. Composites reinforced with hornificated pulp and AC showed better MOR and SE values. Hornification fibers and AC presents potential to be used as combined treatments. Composites with hornificated pulp and AC improved durability of pulps after ageing. Composites with hornificated pulp and AC showed better physico-mechanical performance. Abstract: This paper assesses for the first time the effect of accelerated carbonation and hornification treatments on fiber-cement composites, both combined and independently. In order to improve the mechanical performance and durability of the material, the influence of each treatment over matrix and fiber is analyzed along time. The results indicate that hornification treatment yields greater dimensional stability improving the fiber-matrix interface and greater Specific Energy of the composites, while accelerated carbonation generates denser matrices, which increases Modulus of Rupture. After accelerated aging, the combined effect of both treatments improved the mechanical performance compared to the rest of the samples. In addition, cellulose material is preserved, showing the potential efficiency of both treatments combined on fiber/matrix.