If I want to prepare Brick in the laboratory using Electric Muffle Furnace for research purpose what shall I have to do? Temperature, Duration of firing, Cooling, Precautions etc is required to know. If anybody have experience, please share.
If I can successfully prepare good quality brick in the laboratory; Next time I will mix some ETP sludge with soil in different dose as admixture to check change of physical and chemical property of Brick. So, if anyone have relevant paper, please share.
Clay soils are compounds of silica and alumina. Calcareous clays have calcium carbonate and will burn to a yellow or cream color. Non-calcareous typically contain feldspar and iron oxides, and will burn to a brown, pink or red, depending on the amount of iron oxide.
The silica in the clay, when fired at 900-1200 degrees C, will turn to a glassy phase. This process, called vitrification, will turn the clay to a crystalline structure. Therefore, temperature is important. If under-fired, the bonding between the clay particles will be poor and the brick will be weak. If the temperature is too high, the bricks will melt or slump.
ETP sludge will affect bonding characteristics during high temperature.
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