Development of Sustainable Bricks by Industrial By-Product

Cement bricks are generating huge carbon emissions during their manufacturing process, and due to the high carbon emissions, global warming takes place. To avoid those circumstances, new inventions are needed in bricks, and at the same time, the new material which is used for replacement should emit low carbon emissions. A sustainable industrial by-product ground granulated blast furnace slag (GGBS or GGBFS) was introduced here. The slag was partially replaced with cement on 25 and 30% as a binder material which gives compressive strength from 7 to 24 MPa on its 28-day strength. The water absorption of the bricks is found to be 4–7% which is normal when compared to the nominal brick water absorption range. The raw materials used for this brick were GGBS, Ordinary Portland Cement, and M-Sand. Most of the high-strength bricks were developed by adding iron ore tailings, GGBS, etc. in bricks, but here GGBS itself gives high strength in terms of brick standards. To develop a sustainable construction material, slug is used here in a potential way. It is also found that the size of the slag is comparatively less than Ordinary Portland Cement and the compressive strength gets increased rapidly as the slag particles settle in between the gap present in cement molecules. Finally, as the cement is partially replaced by 30%, the carbon emission is also comparatively reduced.