Improvement Of Heat Conductivity Coefficient Of Fly Ash-Based Geopolymer Brick By Substitution Of Blast Furnace Slag

Brick, one of the oldest materials known in history, is a building material that has come up to present day by continuing its development over time. However, with technology, brick been continuously revised. Recently, researchers have turned production geopolymer bricks substituting waste into structure.
 In this study it aimed research effect blast furnace slag substitution on heat conduction coefficient fly ash-based brick. study, was replaced clay different proportions (10, 30, 50, and 70%). Furthermore, 20% ash kept constant, 8 10 M sodium hydroxide for alkaline activation, 4% 8% calcium were used produce bricks.
 The conductivity determination experiment applied samples. As result, observed decreased increase slag, hydroxide, substitution. best results obtained from samples produced 70% 0.26 W/mK. addition, concluded an effective way dispose industrial waste.