A STUDY ON ENGINEERING PROPERTIES OF SAWDUST THERMAL INSULATOR

Abstract

This research is to study the properties of the insulation sheet made from sawdust by using sawdust, hardwood and rubber wood sawdust, which is a waste material mixed with rock powder glue, measured by using rubber wood sawdust instead. Solid wood sawdust at a mixture ratio of 0%, 25%, 50%, 75%, and 100% by volume, for example, insulation sheets in the size of 20.0 x 20.0 x 2.0 cm. The specimens were removed from the mould after 1 day. Test for flexural strength, density, water absorption, swelling, moisture content, thermal conductivity, thermal diffusivity and specific heat at the age of 28 days. The results showed that replacing hardwood sawdust with rubber wood sawdust did not affect the change in the flexural strength and swelling, while the moisture content tends to increase slightly. For insulation properties at water absorption, thermal conductivity, thermal diffusivity and specific heat also tends to decrease. In addition, the density of the insulation sheet from this research through the TIS Standards 876 - 2547 flat type plywood.