Production of waste bio-fiber cement-based composites reinforced with nano-SiO 2 particles as a substitute for asbestos cement composites

Hosseinpourpia, R ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1016/j.conbuildmat.2011.12.102
  3. Publisher: 2012
  4. Abstract:
  5. The environmental impact of asbestos fibers on human health and their consequent safety-related problems indicate that there is a significant need to replace this material in all asbestos-containing products. Many different types of fibers have been introduced to replace asbestos fibers. In this study, the performance of silica nano-particles combined with waste paper pulp fibers (sulfite fibers) has been investigated. Different mechanical (compressive and flexural strengths and bending performance), durability (water absorption), physical (bulk density and flowability), and microstructural (scanning electron microscopy) tests were conducted to examine the properties of manufactured green composites. The results reveal that the mechanical properties of cement-based composites containing a ternary system of "natural waste fiber-silica nano-particle cement" have been enhanced. Adding silica nano-particles allows the development of green cement-based composites and movement toward sustainable development in the concrete industry
  6. Keywords:
  7. Asbestos fiber ; Green cement-based composites ; Silica nano-particles ; Waste bio-fiber ; Asbestos fibers ; Bulk density ; Cement composite ; Cement-based ; Compressive and flexural strengths ; Flowability ; Green composites ; Human health ; Micro-structural ; Nano- SiO ; Natural wastes ; Waste paper pulp ; Asbestos cement ; Bending strength ; Bending tests ; Nanoparticles ; Reinforced plastics ; Silicon compounds ; Fibers ; Asbestos ; Bend Strength ; Cement ; Composites ; Mechanical Properties ; Scanning Electron Microscopy ; Silica ; Ternary Systems ; Waste Papers ; Wastes
  8. Source: Construction and Building Materials ; Volume 31 , 2012 , Pages 105-111 ; 09500618 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0950061811007926