Study on performance of fiber reinforced magnesium phosphate cement-bonded particleboards
LI Shuang
LI Zhida
WANG Lei
ZENG Chaohua
Abstract：Cement-bonded particleboard is a kind of environmental-friendly building material composed of cement,wood and chemical admixtures. Magnesium phosphate cement could accelerate setting and hardening of particleboards. Based on this,the ef-fects of polyvinyl alcohol (PVA) fiber on the bending strength and fracture energy of particleboards were investigated. The experi-mental results showed that PVA fiber can significantly enhance the bending strength and fracture energy of magnesium-phosphate particleboards. Under the condition of equal volume fraction,PVA fiber with smaller diameter showed higher improvement effect on the strength. In addition,oiled PVA fiber presented larger enhancement on toughness of particleboards when compared to unoiled fiber. On the fractured interface,microscopic analysis indicated that most oiled PVA fiber was pulled out,while most unoiled fiber was ruptured during failure of particleboards.
Keywords：cement-bonded particleboardmagnesium phosphate cementPVA fiberbending strengthfracture energy
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 73-77 )