MANUFACTURING METHOD OF SOLIDIFIED BRICKS

摘要

PURPOSE: Provided are solidified bricks with improved compression strength and submersion resistance compared with conventional clay bricks by using alkali promoter. CONSTITUTION: Solidified bricks comprise 100pts.wt. of blast furnace sludge, 30-50pts.wt. of solidifier containing fine blast furnace slag powder having surface area more than 4000cm¬2/g and Portland cement in a weight ratio of 0.25-4.0, and 1-3pts.wt. of alkali promoter selected from steelmaking dust, mini-mill dust and sintered dust. Solidified bricks are manufactured by controlling water content to be the weight ratio of water to solidifier ranging from 0.2-0.5, mixing the above components, compression forming, and curing.