Block environmental products
Fudo Tetra continues to challenge new things to meet the demands and needs of the new era,
making the land resilient to natural disasters and supporting local communities.
- Tetrapod
The Tetrapod, which has become synonymous with wave-dissipating blocks, have a simple shape yielding superior workability, and its high stability against wave action due to strong interlocking between each block makes structures stable.
- Tetraneo
Tetraneo has been developed based on “ Tetrapod” which have reliability and many site applications. Tetraneo has advantages as below.
- Penta-Con
Penta-con is the structure that two legs of truncated trigonal pyramid and three legs of truncated quadrangular pyramid stuck out of from the triangular column of the central nucleus. The two types of legs link together to make an extremely stable structure.
- Dolos
Through an anchor-type shape, the Dolos has super excellent stability against waves due to its interlocking between blocks.
- Dolos II
The Dolos Type II is a unreinforced block that was developed based on the Dolos, which targets severe wave areas. It realizes high structural strength, high stability, and low-cost construction.
- 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.
- X Block (standard)
The X-Block is a versatile block in a wide range of situations such as covering rubble mounds of composite type breakwaters or foot protection of rivers. Its simple shape gives advantages in performance of construction.
- Pressrock
This block has been much used for streambed protection for rivers or as armor block of artificial reefs and rubble mound. Legs at four corners make for greater ease of installation.
- Crabrock
Used as slope cladding for seashores and river embankments, it helps prevent erosion while maintaining hydrophilic characteristics.
- Crabrock E
Used as slope cladding for seashores and river embankments, it helps prevent erosion while maintaining hydrophilic characteristics.
- Pressrock Mega
This block meets the structural requirements for armor blocks on coastal revetments, and good interlinking prevents high position blocks from projecting over low position blocks at times of overflow.
- Crabrock R
Eliminating the vulnerability at the block junction between level and sloping surfaces, it effectively reinforces the area at the foot of the back slope from overflowing water.
- Trion
An articulated block for earth-covered river embankments with connection function that uses steel cable etc. for interlocking so that the highly flexible joints can adapt to changes in slope. Trion is an ideal block for brackish water.
- Crabrock S
Developed for sabo dams, jetties and revetments, the top projections on this block allow vertical piling or placing to a preferred gradient.
- Terrace CS
By making the step side two-tier, with a circular and letter “S” curve, the Terrace CS-Type is attractive for landscaping, while allowing for easy access to waterfronts.
- RS Block
This block has good stability because the meshing in the vertical and horizontal cross-sectional directions. It forms wide steps, and functions as a hydrophilic embankment.
- Igloo
The Igloo is a vertical wave-dissipating block that secures calmness within ports and fishing harbors. It boasts excellent wave-dissipating function and a superior appearance.
- Cross Hollow
Cross Hollow imparts wave-absorbing block function to upright wall itself. There are abundant construction results such as breakwater and quay wall.
- Bag Material for bag-type foot protection (Kyowa Filter Unit S type; standard type; reinforced type; mat type)
- Reef Mat
Reef Mat is excellent basket products used specialty polyethylene coating wire rod, and have high durability and high strength than traditional products.
- Haneru Fishway Block
Fishway blocks recreate natural mountain streams, allowing passage for fish such as salmon and sweetfish, freshwater goby and Japanese mitten crabs.
- Re-Birth Wood
A recycled wood material that is safe and impervious to water. Redundant natural wood decks can be recycled as this material.
- Shipotex Method
A mineral coating material in natural stone colors that preserves and protects block structures etc.
- Ion Culture
A base promoting seaweed growth through an adhering diatom proliferation material that releases phosphorus and ferrous ions essential for seaweeds to thrive.
Type | ApplicationsProduct name | Location | Structural type | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shorelines | Waterways | Others | Breakwaters & Revetments | Detached breakwaters | Wave-dissipating breakwaters | Jetties & Headlands | Submerged breakwaters & Artificial Reefs | Upright wave-dissipating breakwaters and shipping facilities | Shallow sloping and stepped embankments | Coastal Breakwater | Fish reefs & Seaweed beds | Dikes (rivers) | Revetments (rivers) | Spur dikes (rivers) | Groundsills (rivers) | Erosion control (rivers) | Fishways (rivers) | Temporary placement | Others | ||
Solid type | Tetrapod | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
Tetraneo | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
Penta-Con | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
Dolos | ● | ● | ● | ● | ● | ● | |||||||||||||||
Dolos II | ● | ● | ● | ● | ● | ● | |||||||||||||||
Flat type | Permex | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
X Block | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||
X Block(T-Type, Thick Type) | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||
X Block(Protrusion type) | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||
X Block(Low Protrusion type) | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||
Pressrock | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
Crabrock | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
Crabrock E | ● | ● | ● | ● | |||||||||||||||||
Pressrock Mega | ● | ● | ● | ● | |||||||||||||||||
Crabrock R | ● | ● | |||||||||||||||||||
Trion | ● | ● | ● | ||||||||||||||||||
Flat type (stepped) |
Crabrock S | ● | ● | ● | ● | ● | ● | ||||||||||||||
Stepped type | Terrace CS | ● | ● | ||||||||||||||||||
Terrace T | ● | ● | |||||||||||||||||||
RS Block | ● | ● | |||||||||||||||||||
Upright (vertical wave-dissipating) |
Igloo | ● | ● | ||||||||||||||||||
Cross Hollow | ● | ● | |||||||||||||||||||
Environmental product | Bag Material for bag-type foot protection (Kyowa Filter Unit S type;) | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
Bag Material for bag-type foot protection (Kyowa Filter Unit standard type; reinforced type; mat type) | ● | ● | ● | ● | ● | ● | |||||||||||||||
Reef Mat | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
Haneru Fishway Block | ● | ● | ● | ● | |||||||||||||||||
Re-Birth Wood | ● | ● | |||||||||||||||||||
Shibotex Method | ● | ● | |||||||||||||||||||
Ion Culture | ● | ● | ● |