PENGARUH ABU SEKAM PADI SEBAGAI BAHAN PENGISI UNTUK PEMBUATAN TUNGKU RUMAH TANGGA

Abstract

The study of the effect of rice husk ash as a filler in making of household furnace has been carried out which includes raw material analysis and then furnace making. This study aims WR REWDLQ FRPSRVLWH PDWHULDOV IRU WKH IXUQDFH¶V ERG\ DQG WR FUHDWH D GHVLJQ WKDW LV VXLWDEOH IRU domestic use. The observation and physical testing of composite materials showed drying shrinkage of 5.24-9.49%, burning shrinkage of 0.80-1.82%, compressive strength of 46.66- 70.84 kg/cm², producing good-shaped product with no crack, no bent on draining at sunshines and burning at 700 °C. Based on this information, furnaces were made with a composite material made from: (a) 1 part of rice husk ash (ASP) and 3 parts of flexible clay (TLP), and (b) 2 parts of ASP + 3 parts of TLP. Furnace of each treatment is designed to have 2 holes and 4 holes for air flow. The result showed that the fastest time for boiling of 500 ml of water using 665 g of wood was 11.65 minutes. Observation of the highest temperature in the combustion chamber when the furnace has been used for 210 minutes was 60 °C in treatment (a) with 2 holes; while the lowest temperature was 40 °C in treatment without TLP with 2 holes and in treatment without ASP with 4 holes.