In a one aspect there is disclosed a formwork wall panel (10) having an operative inner surface (12) to face towards an inner space to be filed with building material and an opposing operative outer surface (14) having a surface finishing component (16) secured thereto. The operative inner surface (12) of the formwork wall panel (10) includes a brace coupling formation (18) operatively adapted to engage a wall panel coupling formation (20) of a brace (22) operatively extending between the formwork wall panel (10) and an opposing second formwork wall panel.

The disclosure presents a composite concrete structure formwork which comprises stay in place fiberglass profiles and reinforcement to form various building and shelter structures. The structures include an interior container maintained at a set distance within an exterior container to form a void. The void is filled with wet concrete which is allowed to cure. All of the components in a preferred embodiment are formed of a fiberglass material.

Disclosed is a form work system (100) that comprises first (102a) and second (102b) building formwork components that are connected by a building formwork connector (104) The connector (104) comprises a moveable portion (128) that is moveable from a closed position to an open position. In the closed position, one or more sidewalls of the connector (104) define a cavity (144) for receipt of cementitious material. The cavity (144) of the connector (104) is located with respect to cavities (110) of the first (102a) and second (102b) formwork components. In the open position, access is provided to the cavity (144) of the connector (104).

The disclosure presents a reconfigurable composite floor formwork which defined by a plurality of interlocking fiberglass panels formed into profiles which may be moved and adapted to provide a concrete form for a floor or ceiling. All of the components in a preferred embodiment are formed of a fiberglass material.

The disclosure presents a formwork system which utilizes Fiber Reinforced Polymer (FRP) panels to create modular segments to form and reinforce concrete subgrade structures. The segments may be rearranged and bonded together to conform to intended dimensions of many subgrade structures. The segments are manufactured by cast molding, bonding or vacuum forming. The segments may include integrated FRP stanchions to prevent deflection of the panels during concrete placement. The stanchions also may be used for positioning structural steel or FRP rebar. FRP bars are permanently bonded to the interior sides of the panels inside the segments. In use, the assembled segments are filled with concrete. After the concrete is cured, the segments remain in place and function as external protection and reinforcement for the cured concrete.

A concrete corner structure with diagonally oriented fiber resin polymer rebar and method that utilizes straight rebar to reinforce the corner structure. The straight rebar intersects with the horizontally disposed rebar in the first and second walls that form the corner structure. The straight rebar is placed at a 45-degree angle with respect to the two walls and tied to the horizontally disposed rebar. This allows for the use of straight rebar to reinforce the corner structure as opposed to a curved rebar.

A concrete corner structure with diagonally oriented fiber resin polymer rebar and method that utilizes straight rebar to reinforce the corner structure. The straight rebar i intersects with the horizontally disposed rebar in the first and second walls that form the corner structure. The straight rebar is placed at a 45-degree angle with respect to the two walls and tied to the horizontally disposed rebar. This allows for the use of straight rebar to reinforce the corner structure as opposed to a curved rebar.

In a first aspect there is disclosed a support structure assembly (10). The support structure assembly includes a first wall panel (12) operatively associated with an opposing, spaced apart second wall panel. The first wall panel (12) including a channel (14) having two spaced apart channel walls (16) connected via a transverse channel base (18). The channel (14) encloses a resilient body (20).

The disclosure presents a composite column formwork which utilizes a fiber reinforced polymer (FRP) stay in place container which incorporates horizontally coplanar support chairs bonded to the interior surface, closed ties bonded to the support chairs and a plurality of longitudinal rebar enforcements bonded to the closed ties. All of the components in a preferred embodiment are formed of a fiberglass material.

The disclosure presents a formwork system which utilizes Fiber Reinforced Polymer (FRP) panels to create modular segments to form and reinforce concrete subgrade structures. The segments may be rearranged and bonded together to conform to intended dimensions of many subgrade structures. The segments are manufactured by cast molding, bonding or vacuum forming. The segments may include integrated FRP stanchions to prevent deflection of the panels during concrete placement. The stanchions also may be used for positioning structural steel or FRP rebar. FRP bars are permanently bonded to the interior sides of the panels inside the segments. In use, the assembled segments are filled with concrete. After the concrete is cured, the segments remain in place and function as external protection and reinforcement for the cured concrete.