PENENTUAN KUALITAS BATU BATA MERAH BERDASARKAN KONDUKTIVITAS TERMAL

Abstract

A compressive strength testing (  ) and thermal conductivity testing (k) have been performed on red bricks from the district of Tenayan Raya and Rumbai. This research using a compression machine, iron, solder, thermometer, styrofoam and its purpose was to prove the theory of the thermal conductivity having relationship to compressive strength. The result showed that the highest compressive strength due to the conventional red brick of Rumbai district is 10.82 x 10 5 N/m 2 and the lowest compressive strength due to the press red brick of Tenayan Raya district is 3.67 x 10 5 N/m 2 . The research results of thermal conductivity showed that the thermal conductivity value of the best sample of conventional red brick of Rumbai district is 1.05 J/sm  C and the thermal conductivity value of the lowest sample of press red brick of Tenayan Raya district is 0.857 J/sm  C . The affecting factor of the quality of red bricks is density. The density of conventional red bricks of Rumbai district for compressive strength and thermal conductivity, are 2486.880 Kg/m 3 and 2200 Kg/m 3 , respectively. Meanwhile average density of press red brick of Tenayan Raya district for compressive strength and thermal conductivity are 1696 Kg/m 3 and 2000.5 Kg/m 3 , respectively. Based on the result there was in relationship between compressive strength and thermal conductivity which was discribed by the regression equation Y  2 x 10  7 X  0 . 812