PURPOSE: To efficiently utilize waste as the backfill in civil work, culture soil for growing plants, etc., by adjusting the water content of crushed stone sludge close to that at plastic limit, adding a solidifying agent and granulating the mixture.

CONSTITUTION: The crushed stone sludge generated from a stone crushing plant is dehydrated and then dried to control the water content within ±5% of the water content at plastic limit. More than 5wt.% of an increase of a solidifying agent such as cement and lime is added to the dried sludge and mixed, and the mixture is granulated to obtain the crushed stone sludge granulated material.