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Title: Nanocellulose and Microcellulose Fibers for Concrete
Accession Number: 01157605
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: A study was conducted in which a reactive powder concrete was reinforced with a combination of nanocellulose and microcellulose fibers to increase the toughness of an otherwise brittle material. These fibers could provide the benefit of other micro- and nanofiber reinforcement systems at a fraction of the cost. An empirical investigation into the effects of several different reinforcement schemes on processing parameters and mechanical properties of a reactive powder concrete mixture was conducted. In particular, notched-beam tests were performed under crack-mouth opening displacement control to measure fracture energy under stable crack-growth conditions. Preliminary results show that the addition of up to 3% micro- and nanofibers in combination increased the fracture energy by more than 50% relative to the unreinforced material, with little change in processing procedure. Splitting tensile tests were also performed for comparison with beam-bending tests. Current work focuses on applying high-resolution three-dimensional imaging techniques to better quantify the physical microstructures and the corresponding shifts in damage mechanisms that lead to higher toughness.
Monograph Title: Monograph Accession #: 01157601
Report/Paper Numbers: NANO10-0040
Language: English
Authors: Peters, Sarah JRushing, Todd SLandis, Eric NCummins, Toney KPagination: pp 25-28
Publication Date: 2010
ISBN: 9780309142779
Media Type: Print
Features: Figures
(1)
; References
(8)
; Tables
(4)
TRT Terms: Uncontrolled Terms: Subject Areas: Materials; I32: Concrete
Files: TRIS, TRB, ATRI
Created Date: May 26 2010 2:47PM
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