Possibility of Wood Waste Processing in the Course of Gypsum Articles Manufacture

A possibility to produce gypsum articles with the use of wood waste (WW) of laminate sawing as filler is substantiated. The introduction of WW into the composition of gypsum paste causes an increase in water demand of the system due to the hydrophilicity of a timber component. To ensure the molding processability and operational properties of articles produced, it is necessary to use hyperplasticizers and regulators of setting time. It is shown that introducing 15% of WW into compositions with building gypsum makes it possible to manufacture articles with lowered density (up to 1040 kg/m³) while maintaining high strength characteristics. For assessing heat insulation properties and strength of samples in water saturated state, indicators characteristic for produced gypsum products have been established.

S.V. ANISIMOVA, Candidate of sciences (Chemistry)
A.E. KORSHUNOV, Engineer(This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.A. ZEKIN, Student

Nizhny Novgorod State University of Architecture and Civil Engineering (65, Ilyinskaya Street, 603950, Nizhny Novgorod, Russian Federation)

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