The present invention relates to a formwork device for a battery formwork for the production of structural elements, in particular prefabricated concrete elements, which comprises at least two partition walls and the formwork device comprises two formwork panels that are connected to one another, preferably in an articulated manner, in order to be transferred from an unfolded state to a folded state, where each formwork panel comprises a formwork front side for attaching formwork elements and a formwork rear side, and the formwork rear sides of the two formwork panels face each other in the folded state and the formwork device is intended to be positioned in the folded state between the partition wall. The present invention further relates to an arrangement consisting of a battery formwork and at least one formwork device according to the invention, where the formwork device is arranged suspended in the battery formwork.

A hinged corner for a construction form includes a first flange connected to a first mounting plate for a form member and a second flange connected to a second mounting plate for a form member. The first flange and the second flange pivot relative to one another in an overlapping relationship about a pivot point disposed between the first mounting plate and the second mounting plate.

A rough-in box used during the construction of buildings having poured concrete flooring, such as multi-story high-rise buildings. The rough-in box may be used to retain an opening in the floor through which plumbing and mechanical components may be installed after concrete has been poured around the device and hardens into a slab. The present invention also relates to a method comprising the steps of assembling the side walls of a box, placing a lid made of a material stronger than that of the side walls and capable of supporting a weight of 2,000 pounds, placing the box over a hole on the floor, and pouring concrete to form a floor around the box. The box will remain in place providing an accessible penetration through the flooring with space for plumbing connections and a flush surface with the floor over which pallet jacks and workers may travel without obstruction.

A collapsible formwork element, the element including: a pair of opposing side wall panels; and at least one connector member extending between the side wall panels, wherein the formwork element is movable between an expanded configuration, wherein the opposing panels are spaced apart, and a collapsed configuration, wherein the opposing panels are relatively closer together.

A ballast block has a uniquely designed framework consisting of lightweight, pre-fabricated, metal panel members and cross-bracing and elongated bracing members. The various components of the ballast block framework are compactly bundled and shipped to the end use location for assembly on-site. Once assembled, the ballast block framework is properly positioned on its permanent, end use location and concrete or equivalent ballast material is poured into the framework, completely filling its internal space. The ballast block can be sized and fabricated for the specific desired purpose.

A method can produce an assembly for a line penetration. The method includes: (a) cutting a fire-protection mat forming a fire-protection module to length appropriate for the size of the line penetration, where the fire-protection mat has a flexible carrier element, on at least one end region of which a fire-protection tape of an intumescent material is fastened, (b) bending the fire-protection mat into a circular shape and joining opposite rims of the fire-protection mat to one another via a joining means, so that the fire-protection tape is disposed in a region of an axial end of the circularly shaped fire-protection mat, and (c) fastening at least one mechanical positioning element constructed separately from the fire-protection mat on the fire-protection mat and which is arranged in such a way that the assembly can be fastened, via the mechanical positioning element, on a wall or on formwork.

A rough-in box used during the construction of buildings having poured concrete flooring, such as multi-story high-rise buildings. The rough-in box may be used to retain an opening in the floor through which plumbing and mechanical components may be installed after concrete has been poured around the device and hardens into a slab. The present invention also relates to a method comprising the steps of assembling the side walls of a box, placing a lid made of a material stronger than that of the side wails and capable of supporting a weight of 2,000 pounds, placing the box over a hole on the floor, and pouring concrete to form a floor around the box. The box will remain in place providing an accessible penetration through the flooring with space for plumbing connections and a flush surface with the floor over which pallet jacks and workers may travel without obstruction.

A collapsible formwork element, the element including: a pair of opposing side wall panels; and at least one connector member extending between the side wall panels, wherein the formwork element is movable between an expanded configuration, wherein the opposing panels are spaced apart, and a collapsed configuration, wherein the opposing panels are relatively closer together.

A ballast foundation includes a portable rolled steel enclosure formed from multiple sections and further includes internal bracing. The internal bracing is used to support an upright vertical structural member that connects to an external load (such as a frame structure for a solar array) that is supported by the ballast foundation when the enclosure is filled with concrete.

A formwork for manufacturing a concrete structure which is composed of one or several folding portions, provided with one or several hollow portions which in an unfolded and stretched condition have the shape of the contours of portions of the concrete structure to be formed, whereby the formwork can be placed on a bottom in an initial condition and whereby, by pouring or pumping concrete slurry in the hollow portions of the formwork, the formwork can be taken from the initial condition to the stretched condition so as to form the respective portions of the concrete structure.