Hydrocast™ Fabric Forms are used to cast large concrete armor units in place, either underwater or in-the-dry. Fabric formed concrete armor units are reliable and economical cast-in-place alternative to older, traditional methods of expensive heavy quarry stone (rip rap) or large precast concrete blocks. They are designed for Hurricane Storm Protection erosion control structures such as spillway aprons, breakwaters, dikes, seawalls, groins, and jetties. They can also be used for foundation structures (such as underwater pipelines), footing supports. The Departments of transportation rely heavily on these new methods to prevent or repair scour at bridge piers and abutments.
Fabric Formed Concrete Systmes, when filled with a fine aggregate or conventional concrete, assume a defined geometric shape. The concrete is pumped under pressure on the job site, resulting in improved concrete properties. Their strong mass and stability armor them against severe forces of large Hurricane Storm waves and rapidly flowing water such as hurricanes. These Geotextile concrete armor units can be placed side-by-side or stacked pyramid style to form an interlocked structure. Because they are concrete filled in-situ, they can adapt to variations in the bottom profile.
Hydrocast™ Fabric Forms can be placed and filled with concrete from the water's surface in shallow water or by divers in deeper water ideal for Hurricane Storm Protection. Unlike quarry stone or precast concrete blocks, they do not require placement by heavy cranes working from the land or from barges. Manpower to fill and place the forms is minimal, as well as the equipment needed, keeping job costs down. Hydrocast™ Fabric Formed Concrete armor units can be formed in wide range of sizes and shapes. Our technical staff accurately calculates the length, width and height of the concrete armor unit and the volume of concrete per measure of unit length with the aid of computer programs.