| 摘要 |
<p>PURPOSE:To obtain a colored secondary product of concrete as well as to tightly seal harmful industrial waste by kneading the waste with cement, a pigment, fine aggregate, coarse aggregate and water, filling the resulting mixture into a mold and solidifying the mixture. CONSTITUTION:Harmful industrial waste is kneaded with fine aggregate such as river sand, coarse aggregate such as crushed concrete scraps, cement such as common Portland cement, a pigment, silica black and water. The resulting mixture is filled into a mold and solidified to produce a secondary product of concrete. Since the harmful industrial waste is tightly sealed, environmental pollution can be prevented and the colored secondary product of concrete having superior durability can be produced.</p> |
