| 摘要 |
PROBLEM TO BE SOLVED: To provide a roadbed material improved in strength while effectively using an ALC waste material by using ALC for the roadbed material. SOLUTION: This roadbed material is characterized by including a crushed material of autoclaved lightweight concrete (ALC) waste material in crushed stone or regenerated crushed stone. Preferably, the grain size of the crushed material is smaller than that of the crushed stone or regenerated crushed stone, and the mixing ratio of the crushed material to the crushed stone or regenerated crushed stone is less than 30%. COPYRIGHT: (C)2004,JPO
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