Method of making a protective element for a breakwater or wave-retarding construction
AssigneeHbg Civiel B.V.
InventorsJan Sebastiaan Reedijk, Martijn Klabbers, Markus Muttray
Life of this patent
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Abstract
A protective element for a breakwater or wave-retarding construction comprises a body that has at least two opposing projections. The projections are on either side of a flat base and extend transversely thereto. The periphery of the base is non-circular, so that rolling of the protective element under the influence of the beating of the waves is resisted.
Claims11
A method of making a protective element for a breakwater, the protective element having a plate-shaped base and two projections extending from opposite sides of the base, the method comprising the steps of:
- creating a cavity in a substrate and inserting bottom shuttering into the substrate at sides of the cavity to define a mold for a first of the two projections;
- erecting a middle shuttering on a surface of the substrate so as to define a mold for the base;
- erecting a top shuttering above the middle shuttering to define a mold for a second of the two projections;
- and
- pouring concrete into the bottom, middle, and top shutterings separately or continuously and allowing the concrete to set, whereby the set concrete forms the protective element,
- wherein the step of pouring the concrete includes pouring concrete into the bottom and middle shutterings and allowing the concrete in the bottom and middle shutterings to set sufficiently to support the top shuttering, and wherein the step of erecting the top shuttering includes erecting the top shuttering on a surface of the concrete in the middle shuttering.
A method of making a protective element for a breakwater, the protective element having a plate-shaped base and two projections extending from opposite sides of the base, the method comprising the steps of:
- providing two halves of a mold that defines the protective element when the two halves are joined, each of the two halves having bottom shuttering that defines half of a first of the two projections, middle shuttering that is attached to the bottom shuttering and defines half the base, and top shuttering that is movably attached to the middle shuttering and that defines half of a second of the two projections, the middle shuttering having a lower surface with an opening to the bottom shuttering, the bottom shuttering being elevated on a raised area;
- joining the two halves;
- pouring concrete into the mold and allowing the concrete to set;
- moving the top shuttering up to free the top shuttering from the concrete;
- moving the bottom and middle shuttering down to free the bottom and middle shuttering from the concrete;
- and
- removing the two halves from the concrete form the protective element.
Dependencies are inferred from the claim text.