Permex

The Permex is the ideal block for covering artificial reefs or rubble mounds of composite type breakwaters, which has outstanding stability and superior economy. It also contributes to creating habitats for a wide variety of marine life.

  • Outstanding stability
    Large inside openings and outside notches significantly reduces the up-lift force acting on Permex. Therefore the stability against wave action of Permex can be improved remarkably in comparison with other conventional armor blocks. The Permex is the ideal block for covering artificial reefs or rubble mounds of composite type breakwaters, therefore the 4t type can be used for a wide range of design conditions.
  • Superior economy
    Because high stability of Permex allows to use smaller block, total amount of concrete can be reduced. Therefore Permex has superior economy to those of other conventional blocks. In addition, it is expected such saving of resources will contribute to the preservation of the global environment.
  • Eco-friendliness
    Extremely long ridgelines and five openings of Permex provide a variety of growth environment to marine life.

Applications

  • Artificial reefs, Composite type breakwaters, detached breakwaters
Location
Sanze Oishi coast
Client
Niigata Prefecture
Facility
Artificial reef
Remarks
4t type
Location
Jogatani fishing port
Client
Fukui Prefecture
Facility
Composite type breakwater
Remarks
4t type
Location
Niijima port coast
Client
Tokyo Metropolitan
Facility
Revetment
Remarks
4t type

Shape and Dimensions

Shape and Dimensions

Dimensions