Effect of additive added to cemented wood composite material on board properties

Abstract

Cemented wood composites are among the high strength materials formed by combining the good qualities of cement and the high advantages of wood compared to other traditional materials and it is high moisture and fire resistance, easy to workability, high resistance to fungus and termites.In the study, composite boards were produced by using 20% of red pine wood timber wastes according to the amount of cement and by adding 2.5%, 5% and 10% active wood carbon as an additive, and the effect of different ratios of activated carbon on the board properties was investigated. The humidity, oven dry density (g/cm3), air dry density (g/cm3), water absorption, thickness swelling, bending strength (N/mm2), modulus of elasticity (N/mm2) and heat transmission coefficient values of the cemented wood composite board were determined. It was determined that as the amount of activated carbon added to the produced boards increased, the amount of moisture, water absorption and thickness swelling increased, and the amount of full dry density and air dry density decreased. While there was no effect on the nail holding resistance from mechanical properties, it increased the screw holding resistance, bending resistance and modulus of elasticity values. In addition, it was determined that the additive decreased the heat transfer coefficient value.

Keywords

• red pine
• cement
• activated carbon
• physical and mechanical properties
• kızılçam
• çimento
• aktif karbon
• fiziksel ve mekanik özellikler