| 摘要 |
PURPOSE: Provided is a method for preparing material useable in civil engineering and constructional applications such as various port breakwaters by re-using waste sludge and constructional waste materials generated from sand mould, minerals, glass, metal and/or used ceramics. CONSTITUTION: The method comprises several steps of breaking used sludge and constructional waste material by less than 5mm after classifying types and components thereof and washing and drying the material; selecting the broken materials by grain sizes; admixing 22.5wt% of the waste sludge, 15wt% of waste synthetic resin and 42.5wt% of waste concrete, and 20wt% of polyester resin; forming a product by charging the admixture into a mould under vibration and in a condition of 200kgf/cm¬2 of pressure and 85-90 deg.C of temperature for 5-30 minutes; curing the compressed product in a drying furnace at 30-90 deg.C for 10-50 minutes; and cutting the cured product into a desirable size of the constructional and civil engineering products.
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