PAVEMENT STRUCTURE AND CONSTRUCTION METHOD USING VOLCANIC ASH FROM MOUNT SHINMOEDAKE

摘要

PROBLEM TO BE SOLVED: To provide a pavement structure using the volcanic ash from Mount Shinmoedake, which solves volcanic ash fall disposal problems and prevents flood damage as well, having both permeability and water retentivity, and a construction method thereof.SOLUTION: The volcanic ash from Mount Shinmoedake and a cement-based solidification material are mixed at a predetermined weight ratio so that a first mixture M1 is manufactured. The volcanic ash from Mount Shinmoedake and a resin-based binder are mixed at a predetermined weight ratio so that a second mixture M2 is manufactured. The second mixture M2 is roll-compacted on a road bed 3 to form a water retentive layer 2. The first mixture M1 is then laminated thereon to form a permeable layer 1.