To provide a mounting member comprising a ridge that is long in one direction and fixed to a desired position on a formwork in a simple manner, to form a desired groove portion in a concrete flat plate. The mounting member that is mounted on a formwork used to fabricate a concrete flat plate, and the mounting member comprises: a base material; a ridge portion that is provided on the base material and projects against an inner surface of the formwork; and a fixing portion that fixes the ridge portion to the inner surface.

A form assembly for creating structural supports is disclosed. Embodiments of the present invention provide a form assembly for molding a structural support of a predetermined configuration using a moldable forming composition. The present invention provides non-planar interlocking stackable form members for adjusting the height of molded support structures such as joists and beams.

A form assembly for creating structural supports is disclosed. Embodiments of the present invention provide a form assembly for molding a structural support of a predetermined configuration using a moldable forming composition. The present invention provides non-planar interlocking stackable form members for adjusting the height of molded support structures such as joists and beams.

A pre-stressed cast concrete structure comprises embedded fibrous reinforcing tendons in tension. The fibrous reinforcing tendons each comprises a plurality of continuous non-metallic fibers extending substantially the entire length of the tendon. A system for pre-stressing a cast concrete structure includes a mold for containing concrete, fibrous reinforcing tendons, chuck assemblies associated with the reinforcing tendons and a tensioning mechanism. When cured, the concrete rigidly surrounds the reinforcing tendons such that the reinforcing tendons are maintained in tension. The chuck assemblies have a plurality of jaws that contact the reinforcing tendons in a manner to resist damage to the fibers.

A pre-stressed cast concrete structure comprises embedded fibrous reinforcing tendons in tension. The fibrous reinforcing tendons each comprises a plurality of continuous non-metallic fibers extending substantially the entire length of the tendon. A system for pre-stressing a cast concrete structure includes a mold for containing concrete, fibrous reinforcing tendons, chuck assemblies associated with the reinforcing tendons and a tensioning mechanism. When cured, the concrete rigidly surrounds the reinforcing tendons such that the reinforcing tendons are maintained in tension. The chuck assemblies have a plurality of jaws that contact the reinforcing tendons in a manner to resist damage to the fibers.

A modular panel made of plastic material for manufacturing pool walls comprises: a generally rectangular main body of which a first surface is intended for being oriented toward the inside of the pool, the lengths of the main body defining a reference plane; a complementary body capable of being attached to a second surface of the main body and defining a hollow column intended for receiving concrete, wherein the first surface has an initial convex transverse curve on the width of the main body in a plastic injection mold, the maximum amplitude of the transverse curve relative to the reference plane being selected to compensate for all or part of the deformations that occur between the removal from the mold and the setting of the concrete, in the transverse and longitudinal directions.

A sheet 100 of water-soluble material such as polyvinyl alcohol comprises a plurality of individual, sealed pockets 110, each pocket containing concrete admixture. The sheet is cut to size and attached to the interior of a formwork structure 200 with, for example, PVA glue. After concrete is poured into the formwork, covering the sheet 100, the sheet dissolves, releasing the admixture onto the surface of the concrete as it sets. In another arrangement, a sealed container 300 formed from a water-soluble material contains concrete admixture. The external wall of the container has a plurality of regions 320 where a thickness of the wall is reduced. The container is attached to interior walls of a formwork structure 200 or to reinforcing bars inside a formwork structure. After concrete is poured into the formwork, submerging the container, the container dissolves, with the thinner regions dissolving sooner, releasing the admixture into the concrete.

A sheet 100 of water-soluble material such as polyvinyl alcohol comprises a plurality of individual, sealed pockets 110, each pocket containing concrete admixture. The sheet is cut to size and attached to the interior of a formwork structure 200 with, for example, PVA glue. After concrete is poured into the formwork, covering the sheet 100, the sheet dissolves, releasing the admixture onto the surface of the concrete as it sets. In another arrangement, a sealed container 300 formed from a water-soluble material contains concrete admixture. The external wall of the container has a plurality of regions 320 where a thickness of the wall is reduced. The container is attached to interior walls of a formwork structure 200 or to reinforcing bars inside a formwork structure. After concrete is poured into the formwork, submerging the container, the container dissolves, with the thinner regions dissolving sooner, releasing the admixture into the concrete.

A formliner, sheet, system, and methods of use and manufacture are provided in order to provide a product that can minimize and/or eliminate visible seaming between interconnected formliners during fabrication of a pattern on a curable material. In some embodiments, the formliner can comprise raised sections that define interrelated inner and outer dimensions. Thus, a plurality of formliners can be interconnected by overlaying raised sections thereof. Further, the formliner can comprise one or more detents and one or more protrusions to enable engagement between interconnected formliners without requiring adhesives. In this manner, formliners can be interconnected in a nested manner such that visible seaming between the interconnected formliners is reduced and/or eliminated.

A formliner, sheet, system, and methods of use and manufacture are provided in order to provide a product that can minimize and/or eliminate visible seaming between interconnected formliners during fabrication of a pattern on a curable material. In some embodiments, the formliner can comprise raised sections that define interrelated inner and outer dimensions. Thus, a plurality of formliners can be interconnected by overlaying raised sections thereof. Further, the formliner can comprise one or more detents and one or more protrusions to enable engagement between interconnected formliners without requiring adhesives. In this manner, formliners can be interconnected in a nested manner such that visible seaming between the interconnected formliners is reduced and/or eliminated.