Extruding cement-bonded PVA-fibreboard

Yixin Shao*, Surendra P Shah

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The extrusion technology has been developed to fabricate cement-bonded PVA-fiberboard. PVA fiber has a hydrophilic surface. Combined with the inherent affinity to water, the fiber has a strong bond with cement matrix. The high strength and high modulus of the fiber enables the PVA-fiberboard to have a postpeak yielding behavior with a strain of 0.8% and more. Extruded fiberboard exhibits better performance than conventionally cast board. This superiority is attributed to the process-induced fiber dispersion, fiber orientation and compaction. Extruded PVA-fiberboard is best suitable for the applications where impact resistance is required. Extrusion technology can also be used to mass produce cement-bonded cellulose pulp fiberboard, wood chip particleboard as well as lightweight styrofoam-cementboard. The process is not restricted to flat sheets. Various structural shapes, such as hollowed wall panel, can also be fabricated.

Original languageEnglish (US)
Title of host publicationCanadian Society for Civil Engineering - 1998 Annual Conference Proceedings
EditorsJ.P. Newhook, H. Vaziri, L.G. Jaeger
Pages187-196
Number of pages10
Volume1
StatePublished - Dec 1 1998
EventCanadian Society for Civil Engineering - 1998 Annual Conference - Halifax, NS, Canada
Duration: Jun 10 1998Jun 13 1998

Other

OtherCanadian Society for Civil Engineering - 1998 Annual Conference
Country/TerritoryCanada
CityHalifax, NS
Period6/10/986/13/98

ASJC Scopus subject areas

  • Engineering(all)

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