METHOD OF MANUFACTURING POROUS SINTERED BODY

摘要

PROBLEM TO BE SOLVED: To provide a porous sintered body exhibiting small elution amount of 6-valent chromium to be safely used even when chromium is contained in a raw material and suitably used as a paving material because the excellent drainage property is exhibited over a long period.

SOLUTION: The method of manufacturing the porous sintered body is carried out by firing a material-to-be-fired containing papermaking sludge incineration ash and the temperature in the firing is controlled to 650-1,000°C.

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