| 摘要 |
<p>PURPOSE: A carbonized lightweight aggregate with strong bonding force, absorption, and adsorption by carbonized surface by firing a formed body comprising organic sludge and clay at high temperature. CONSTITUTION: A method for manufacturing carbonized lightweight aggregate using organic sludge comprises: a step of mixing water in 51-90 weight% of organic sludge and 10-49 weight% of clay in water to form a wet formed body; and a step of plasticizing the formed body at 700-1100°C under reducing atmosphere to have lightness, absorption, adsorption, and mechanical strength. The lightweight aggregate further contains 5-10 weight parts of one or more additive selected from limestone, iron oxide, and blast furnace slag.</p> |
