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Reef building blocks
Eco-Coral© and Eco-Coral© Wall artificial coral units used in reef restoration and reef rehabilitation are manufactured from a cementious mix using aggregates that have a pH of 7.0 which, when combined with a modified cement yield a finished pH of the units at 7.9-8.2. The cementious mixture is mixed with a controlled amount of deep well water (not chlorinated) and poured into moulds mounted on a vibrating table. The resultant cured material is extremely strong and does not require re-inforcement. These artificial corals are ideal for coral restoration and have been tested in the reef at Zambales for almost 3 years with amazing results.
Eco-Coral© artificial coral units are built fo fit within a volume of 0.6m x 0.6m x 0.6m and have an approximate surface area of 3.6 square meters.
Eco-Coral© Wall is 2.4m x 0.7m x.2m and is 0.075m thick and has a surface area of 2.48 square meters.
The surface of the units has small craters about 2 mm diameter and 1 mm deep which are the optimum size for spore attachment and growth whilst substantially increasing surface area for colonization. If so desired, there are many places where live coral cuttings may be attached underwater using epoxy clay.
The finished units are colored with 4 basic colors using an inert material; this is done as a result of in-reef trials where it is found that coloring accelerates the colonization of the units and the acceptability to reef fish who will take up house inside the Eco-Coral© artificial corals within a few minutes of installation.
With combinations of Eco-Coral© and Eco-Coral© Wall there are endless opportunities to build feature artificial coral reefs with towers and tunnels, walls and pyramids and anything you may imagine ensuring that reef restoration and reef rehabilitation, using our Eco-Coral© artificial corals ,creates underwater theme parks of great beauty. Each structure is hollow allowing all manner of reef creatures to inhabit and grow.
The drawing below shows how Eco-Coral© Wall may be used with Eco-Coral© artificial coral units to construct unlimited designs.
Eco-Coral© Wall is shown below in a basic assembly of pieces creating a structure 8.4m long x 2.4m wide x 3.6m high, which is stable but allows water currents to flow through
Artificial Coral installation
Eco-Coral© and Eco-Coral© Wall artificial coral have been designed for installation without significant machinery and barges. Eco-Coral© artificial coral units weigh on average 70 kilograms (154 lbs.), Eco-Coral© wall units weigh 140 kilograms (308 lbs.). For transportation the units may be stacked. The units are easily loaded out and transferred by 2 persons and the Wall units by 4 persons allowing inexpensive installations for reef restoration and reef rehabilitation.
Boat types for installation.
Local and indigenous boats are fine, Eco-Coral© and Eco-Coral© Wall artificial coral units have been designed to be installed using local fishing boats of the type found in smaller communities in Asia and the central American countries meaning that coral restoration is not a huge engineering task. The original installation at Capones Islands, Zambales, Philippines was achieved using 16 foot outrigger 'bancas'. On the sea bed 1 diver can manage an Eco-Coral© and 2 divers an Eco-Coral© wall artificial coral.This installation was achieved over 2 days and installed 100 units at 3 depths : 30 feet, 40 feet and 60 feet.
The installation of the designed reefs can be achieved very easily as all components can be handled without difficulty. For larger installations there is a mini Reef Layer which can carry 30 units of Eco-Coral© artificial coral. It is powered by an outboard motor and delivers the corals to the sea bed using a central hatch and small crane arm. This can be supplied pre-manufactured for final assembly or as a set of plans for local construction.