| 摘要 |
PROBLEM TO BE SOLVED: To achieve an inexpensive solidifying treatment and a utilization technique by excluding dewatering treatment using a dewatering treatment apparatus, reducing the amount of cement for use in cement solidification and using low-cost cement when high-water content construction sludge is effectively used. SOLUTION: To adjust the water content of the high-water content construction sludge, a roof tile-crushed rubble which is one of construction waste materials having a high water absorption performance and is not established with a treatment method is mixed. The grain size of the roof tile-crushed is adjusted at 40 mm or smaller. The mixture of the construction sludge and the roof tile-crushed is loaded with cement as a solidifying agent. Normally, Portland cement can also be used. However, an inexpensive treatment can be performed by applying Portland blast furnace cement. Further, a blend ratio of cement can be reduced down to not more than 20%. After loading and mixing treatment, it is aged in heaps. Thereafter, it is crushed into a size enough for utilization as a material for civil engineering/construction. COPYRIGHT: (C)2008,JPO&INPIT
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