NATURAL FRIENDLY-POROUS CONCRETE BLOCK WITH FUNCTION OF PURIFICATING WATER USING CHARCOAL FROM WASTE WOODS

摘要

PURPOSE: An eco-friendly porous concrete block is provided to obtain a water purifying function, a planting function, and an effective microorganism inhabiting space by adding recycled coarse aggregate and waste charcoal. CONSTITUTION: An eco-friendly porous concrete block includes 308 parts by weight of recycled coarse aggregate, 11 parts by weight of silica fume, 2.2 parts by weight of reinforcing fiber, 1.1-5.6 parts by weight of waste charcoal, 0.78 parts by weight of admixture, and 40 parts by weight of binding water based on 100 parts by weight of a solidified binding composition. The solidified binding composition includes 57-65 weight% of granulated blast furnace slag, 14-20 weight% of ladle slag, 7-10 weight% of anhydrous gypsum, 11-15 weight% of lime, 0.2-5.0 weight% of fast hardener, and 0.01-0.1 weight% of an antifoaming agent.