Investigation of the type and content of gypsum on the dimensional stability and mechanical properties of gypsum particleboard

Document Type : Research Paper

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Abstract

In this study in order to investigate the effect of gypsum type on the physical and mechanical properties of gypsum Particleboard were used from two type Jebel and Micronize gypsum. To obtain the suitable amount of gypsum in manufacturing gypsum particleboard was used from the three levels 2.5:1, 2.75:1 and 3:1 of gypsum to dried mass of wooden materials. Physical and mechanical properties of manufactured board were carried out in accordance with European Norms (EN) standard. The result showed that gypsum particleboard manufactured Jebel gypsum have the most mechanical properties (Bending strength, modulus of elasticity and internal bond strength), but physical properties (water absorption and thickness swelling) of this boards was more than the boards manufactured from Micronize gypsum. Furthermore using 2.75 times gypsum to dried mass of wooden materials is also suitable in production gypsum particleboard.

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References

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