Abstract: A pneumatic stripping tool is provided. A top end of a main base is connected with an upper plate through screws; a middle part of a top end of the upper plate is connected with a handle through screws; one end of the upper plate is connected with a pneumatic-wrench fixing seat collar through screws; a pneumatic wrench is connected between the handle and the pneumatic-wrench fixing seat collar; the outer side of one end of the pneumatic wrench is connected with a power wrench sleeve; mounting holes are formed in portions of the main base which are corresponding to the power wrench sleeve; the inner side of one end of the power wrench sleeve is connected with a bottom wheel; and the bottom wheel extends into an inside of the mounting hole.

Abstract: The disclosure discloses a method for preparing a multifunctional ecological exterior wall, including: preparing a ceramic board of a ceramic thermal insulation waterproof layer; preparing a ceramic sound-absorbing board of a sound-absorbing layer; and installing a ecological exterior wall: leveling a surface of the wall of a building with cement slurry, and applying a cement bonding layer thereon; laying the ceramic thermal insulation waterproof board on the cement bonding layer, and applying the cement bonding layer on the ceramic board; laying the ceramic sound-absorbing board on the cement bonding layer and reserving a gap used to place a pipe; driving the screw-thread steel bolt from the surface of the ceramic sound-absorbing board into the wall obliquely; installing and fixing the pipe in the gap, which is reserved at the upper of the ceramic sound-absorbing board; planting a green plant on the surface of the ceramic board of the sound-absorbing layer.

Abstract: A building system including at least one block and further including at least one mortarless side panel including a finished outside surface and at least one dovetail protrusion on an opposing surface for joining the side panel to the at least one blocks, and a connector on each end of the panel for joining the side panel to other side panels, and at least one top cap including a finished top surface.

Abstract: 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).

Abstract: A bullet resistant wall system including ballistic paver blocks constructed, configured, and arranged to form a wall having at least two adjacent individual layers. The at least two adjacent individual layers include multiple adjacent rows of the ballistic paver blocks. The ballistic paver blocks are formed from wet ballistic concrete prepared without an addition of a preformed foam or wet ballistic concrete prepared without an addition of a stabilizing agent.

Abstract: The invention relates to an elevator car comprising a support frame, a floor structure and a ceiling structure, as well as at least one car door, and side walls extending between the floor structure and the ceiling structure, wherein the side walls are formed from several wall elements, which are aligned end-to-end or end-to side in corners, wherein the wall elements are composite panels consisting of at least one support material and at least one noise insulating material, that the elevator car comprises at least one flatbar, extending over the surface of both adjacent wall elements, and covering the joint between them, which flatbar comprises or is connectable with fixing elements to at least one of both adjacent wall elements. Via this means the joint between two noise insulating wall elements does prevent any essential noise leakage.

Abstract: System of disposable molds for the realization of modular formworks to contain and modelize vertical concrete castings, comprising one basic element and a plurality of special elements, such as to let a limited quantity of cement mixture come out, suitable for being spread on the formwork faces to trim it.

Abstract: A multi-component composite block includes a pair of opposed and parallel masonry face panels amalgamated with transverse non-masonry truss-webs or a truss-module including a plurality of joined non-masonry truss-webs. Truss-webs and/or truss-module are delivered within the mold assembly and aligned, retained, and held fast in place by mold apparatuses. Portions of truss-web and/or truss-module unite together with mold apparatuses to shape partitioned residual cavity spaces for the addition of concrete block forming material to form face panels. The truss-web members and/or truss-module have configured elements that integrate with the concrete mass of the face shells providing a permanent amalgamated bond. The assembled multi-component composite block is rigidly stable, durable, structural, lightweight, and thermally efficient.

Abstract: Prefab wall, column, ceiling concrete forms are provided. The wall or column concrete forms comprise a metal mesh portion, dented line portions, horizontal cut portions, edge-pole portions, and a foam or light concrete portion. The metal mesh portion is formed with a shape of three-sided vertical mesh frame, the metal mesh portion comprising front net and two side nets. The dented line portions are provided horizontally across a plurality of locations of the metal mesh portion. The horizontal cut portion is provided at an edge of the side nets and being configured to receive rebars. The edge-pole portion is provided vertically along an inner edge of the side nets. The foam or light concrete portion is disposed and hardened with the metal mesh portion and the plurality of dented line portion. The ceiling concrete form includes a base board, pyramidal trusses, and a longitudinal bar.

Abstract: An insulated concrete form including of first and second spaced sidewalls forming a cavity therebetween, said sidewalls having an inside surface and interconnected by a plurality of form ties, and a form insert made of an insulative material positioned adjacent the inside surface of at least one sidewall which thereby increases the R-value of the resulting structure.

Abstract: A module for a paving or building system can include a pan that provides one major surface of the module and a block that contains a cement mixture, attaches to the pan, and provides an opposite major surface with a cement finish. The pan may have side walls, and an upper portion of the concrete block can extend above a top edge of the pan. The block extending over the edge of the pan in a module allows for joining modules to create an extended cement finished surface. Passages may be provided though modules to allow assembly of modules using cables or bolts that extend through the passages of multiple modules.

Abstract: A stay-in-place form-work for casting a concrete structure comprises a plurality of elongate panels interconnectable in edge-to-edge relationship via complementary connector components on their longitudinal edges to define at least a portion of a perimeter of the form-work. The panels include a first panel having a first connector component incorporating a receptacle, and a second panel having a second connector component incorporating a protrusion. The first and second panels are connectable to one another in edge-to-edge relationship by: effecting a loose-fit connection by extending the protrusion of the second connector component into the receptacle of the first connector component; loosely seating a clip onto the first and second connector components; and pushing the clip against the first and second connector components to reach a locked configuration wherein restorative deformation forces associated with the clip act to retain the first and second connector components in the locked configuration.

Abstract: A formwork assembly is adapted to receive concrete to produce structures such as wall structures. The formwork includes PVC tubular form elements having recessed female engagement portions. The female engagement portions are adapted to receive respective male engagement portions. An octagonal form element has a female engagement portion positioned at each vertex between adjacent sides. A recessed female engagement portion is closed to the interior of the form element but open to the exterior of the form element. Thus, the form element includes a plurality of vertices open to the exterior. The form elements also include male engagement portions at an open side. Wall panels, corner panels, and joint connectors can also include male engagement portions. The male engagement portions and female engagement portions are adapted to mate to form a formwork arrangement having a substantially flat exterior wall. A formwork assembly can additionally include concrete flow apertures and insulation.

Abstract: A system and method of stabilizing and strengthening wall structures constructed with hollow core cementitious blocks that have not been filled with concrete. Relatively small ports are drilled at the grout line every 4-6 courses along the vertical plain of one hollow core and this and every second core is then filled with a high density expanding resin thus filling the core there by providing sufficient strength and rigidity, yet flexibility to the wall structure to withstand significant seismic activity.

Abstract: An insulated core for a building block for a building wall, the block has spaced apart parallel face shells with the insulating core filling the space between the parallel face shells. The insulating core defines spaced apart parallel surfaces for engaging the respective face shells. The insulating core is provided with channels such that when the block forms part of a wall with other blocks, the channels form intersecting uninterrupted passageways for receiving elongated reinforcing members and grout to provide a reinforcing structure to the wall. A method of preparing a structural insulating wall for buildings and an insulating core including a metal connecting bar with lateral wings provided within at least one male interlocking member to provide a thermal break are also disclosed.

Abstract: A building element that is an elongated extrusion of plastics material. The element can be used to form straight or curved walls. Like elements are secured together by transverse relative movement and snap engagement of flanges in recesses. En one embodiment the element has a longitudinally extending seal projection that aids in sealingly connecting engaged elements.

Abstract: A multi-purpose part (32), comprising: a frusto-conical projection (322?) in a lower end INF; a frusto-conical housing (322) in an upper end SUP, arranged to match the frusto-conical housing (322?); a falling mortar pipe (326) extending from the upper end SUP to the lower end INF of the pillar and having, at the lower end (INF), a portion (326?) which curves from a downward vertical plane toward a front face of the frusto-conical projection (322?) for the introduction of mortar; a rising mortar pipe (327) extending from the lower end INF to the upper end SUP of the pillar and having, at the lower end INF, a portion (327?) which is bent from a horizontal plane toward an upward vertical plane so that the mortar introduced rises until a cavity defined by the mortar pipes (326, 327), the frusto-conical housing (322) and the frusto-conical projection (322?) is filled.

Abstract: A wall construction system includes a plurality of leveling blocks arranged in a first course wherein each leveling block including an upper surface, a wall defining a leveling block void, and at least one leveling component having a leveling plate that engages the wall and at least one threaded adjuster extending through the plate. A plurality of field blocks is arranged in a second course atop the first course wherein each field block includes a lower surface that interfits with the upper surface of at least one of the leveling blocks and a wall defining a field block void aligned with the leveling block void of the one leveling block. A cementitious material is disposed in an aligned field block void and leveling block void of at least one of the field blocks and at least one of the leveling blocks, respectively.

Abstract: A wall forming system that uses a pair of panels in combination with a furring strip assembly and retainer The pair of panels are placed in spaced relation using the combination of the furring strip assembly and the retainer wherein the furring strip assembly holds the exterior of the panels while the retainer is disposed between the panels to hold them at a predetermined distance. By holding the panels at a predetermined distance concrete is poured within the cavity formed between the panels to create a wall.

Abstract: The present invention uses insulating concrete forms (ICF) in the construction of residential buildings. An entire wall panel is formed from polystyrene panels that may be cut by a hot wire machine. If necessary, hat channel shaped metal may be inserted into hat channel slots. Columns of polystyrene are removed so that concrete posts may be poured therein after the wall panel has been secured into place with rebar being located therein. Rebar and concrete also are formed along the top of the wall panel. Electrical and plumbing connection pathways are provided in the wall panel at the time of cutting with hot wire. Each wall panel is separately designed and cut by hot wire while still at the factory, but are all connected together to form an ICF residence. Openings are provided for doors and windows and are buck framed. Hat channels are inserted as necessary for strength and/or connection thereto.

Abstract: A formwork assembly is adapted to receive concrete to produce structures such as wall structures. The formwork includes PVC tubular form elements having recessed female engagement portions. The female engagement portions are adapted to receive respective male engagement portions. An octagonal form element has a female engagement portion positioned at each vertex between adjacent sides. A recessed female engagement portion is closed to the interior of the form element but open to the exterior of the form element. Thus, the form element includes a plurality of vertices open to the exterior. The form elements also include male engagement portions at an open side. Wall panels, corner panels, and joint connectors can also include the male engagement portions. The male engagement portions and female engagement portions are adapted to mate to form a formwork arrangement having a substantially flat exterior wall. A formwork assembly can additionally include concrete flow apertures and insulation.

Abstract: The present invention relates a concrete wall where spacer blocks between framing members form a structural insulating core with column and beam molds to form a concrete wall. The spacer blocks interlock horizontally and vertically using a means of forming a tongue and groove connection between the spacer blocks and between the framing members. Various interlocking tongue and groove connections form different wall structures and horizontal bracing channels along with the horizontal tongue and trough add flexibility. Metal channels are used as framing members and the structural insulation core assembly allows the concrete wall to be poured over or below the structural insulating core.

Abstract: A construction component is described. The construction component may include: a) a permanent formwork constituted by a pair of separate semi-forms, facing each other and defining a hollow space between them; b) a construction setting material arranged inside the hollow space; and c) auxiliary installations, such as piping, wiring, or cabling. In one example, each semi-form includes a metal plate fitted with protuberances projecting from one side of the metal plate towards the construction setting material, and with slots housing the auxiliary installations. In another example, each semi-form includes a plastic plate, wherein one of the plastic plates is fitted with protuberances and the other plastic plate is fitted with slots. The example method may include arranging of the auxiliary installations in the slots; and arrangement of two semi-forms and subsequent filling with the construction material until it sets; and optionally connecting the systems and/or installing of the coating components.

Abstract: A mold core with a plurality of tension springs is placed in a mold box such that the top of the mold core is even with the top of the mold box when the plurality of tension springs have no tension. Block mix including a substantial amount of compressible material is poured into the mold and lightly vibrated. A movable bottom plate then moves downward at the same time as the mold core is moved downward a first distance to stretch the plurality of tension springs. After the mold core is moved downward the first distance, the movement of the mold core stops while the movement of the movable plate continues downward, thereby ejecting the partial block element from the mold. Block elements are cured, then glued together to form a complete block. One or both of the exterior surfaces of the block may have a wooden attachment layer attached.

Abstract: A modular retaining wall is illustrated and described having open or closed polygonal modules with channels disposed therein. The wall is set at least partially below a surface, the surface either being land-based or aqueous-based, and interfaces therebetween, e.g., shoreline. The modules of the wall are fastened to each other by respective fastening means such that engaging connectivity is provided between the modules, yet retains the ability for fluid to pass through.

Abstract: A waterproof heat-insulation construction method aims to spread a layer of waterproof heat-insulation powder through a waterproof heat-insulation module on a work surface to form waterproof and heat insulation effect thereof. The method comprises the steps of: first, anchoring at least one waterproof heat-insulation module which can be arranged on the work surface; then holding the waterproof heat-insulation powder in the waterproof heat-insulation module in contact with the work surface to form a waterproof heat-insulation layer. The invention also provides a corresponding waterproof heat-insulation module which can be constructed in a modular fashion to achieve waterproof and heat insulation effect for buildings.

Abstract: Embodiments of a structural stud and panel for use in building a tilt-wall building are disclosed. Devices and methods for forming structural studs and panels are also disclosed.

Abstract: An insulated concrete form system for constructing the exterior walls and gable ends of a structure is disclosed using expanded polystyrene forms that interconnect and are bonded to each other and to the structure's slab or foundation with concrete. Internal, substantially columnar voids are provided in each of the panel forms and both the interior and the exterior surfaces of the walls and gable ends may be finished with a variety of finish materials using furring strips that are incorporated into the interior and exterior surfaces of the forms.

Abstract: Multiple layers of polymer foam form structural concrete into a desired planar shape that retains a foam panel when flat or upright. The polymer foam has a planar shape and an exterior surface with multiple channels into the panel. The channels are generally wider at the bottom and narrower towards the top, preferably a trapezoidal shape. In use, the panel is placed flat within a forming frame, exterior surface upwards. Then concrete is poured upon the exterior surface and into the channels. The trapezoidal shape of the channel prevents removal of the panel from the concrete. The concrete panel can then be used flat or upright as specified for a construction project.

Abstract: An insulating concrete form block adapted to be interlocked with other insulating concrete blocks to form an insulating concrete form for casting concrete. The insulating concrete block including a first foam panel and a second foam panel supported in a spaced apart, parallel relationship to form a concrete receiving cavity. Each of the first panel and the second panel having a top end, a bottom end, a first end, and a second end. The top end and the bottom end of each of the first and second panels having an outside row of a plurality of projections and an inside row of a plurality of projections. The projections of the outside row being spaced apart to define a plurality of recesses and the projections of the inside row being spaced apart to define a plurality of recesses with the projections of the outside row being adjacent to the recesses of the inside row and the recesses of the outside row being adjacent projections of the inside row.

Abstract: A concrete wall forming system including a plurality of mold units for forming a wall of concrete. The mold units include a bond beam form extending into the body lengthwise, defined by a first wall, a second wall, a bond beam form bottom, a first end and a second end where the first wall and second wall extend a depth defined by a portion of the distance from the top surface to the bottom surface and where the bond beam form does not touch the first side or the second side. First and second ledges extend lengthwise along the body from the first and second sides respectively to the first and second walls respectively of the bond beam form. The bond beam form bottom extends from the first wall to the second wall. At least two column forms extend from the bond beam form bottom to a bottom surface.

Abstract: An elongated building element (14) to form a series of walls (10) to (13). The elements (14) each have longitudinally extending flanges (21) that snap engage with longitudinally extending grooves (19) in the next adjacent element (14). Accordingly the wall (10) is constructed by joining the elements (14) in a direction transverse their general direction of extension. If so required the elements (14) may be filled with concrete.

Abstract: A method of constructing a masonry infill in a load bearing structure comprises the steps of: laying one or more courses of masonry (7) in the infill space; partitioning off a casting space having as its base the then uppermost course of masonry (22); the casting space extending from one side of the infill space to the other; positioning reinforcing material (14) in the casting space; securing an end of the reinforcing material to the load bearing structure; filling the casting space with concrete (20), and laying one or more further courses of masonry on top of the filled casting space. The reinforced concrete forms a bond beam which strengthens the masonry. The reinforcing material may be rebar, secured to a load-bearing frame of the building by a cleat (16) having pockets (12) for reception of the rebar ends. Optionally the reinforcement may be tensioned, to pre-stress the bond beam.

Abstract: A modular retaining wall is illustrated and described having open or closed polygonal modules with channels disposed therein. The wall is set at least partially below a surface, the surface either being land-based or aqueous-based, and interfaces therebetween, e.g., shoreline. The modules of the wall are fastened to each other by respective fastening mating fasteners such that engaging connectivity is provided between the modules, yet retains the ability for fluid to pass through.

Abstract: An interlocking panel configured for lightweight insulating concrete has channels which form a profile that includes transversely protruding anchoring cavities. When the lightweight insulating concrete is poured into the channels and hardens, the concrete interlocks and forms an underside interlocking which resists vertical separation of the concrete from the deck panel.

Abstract: A formwork assembly is adapted to receive concrete to produce structures such as wall structures. The formwork includes PVC tubular form elements having recessed female engagement portions. The female engagement portions are adapted to receive respective male engagement portions. An octagonal form element has a female engagement portion positioned at each vertex between adjacent sides. A recessed female engagement portion is closed to the interior of the form element but open to the exterior of the form element. Thus, the form element includes a plurality of vertices open to the exterior. The form elements also include male engagement portions at an open side. Wall panels, corner panels, and joint connectors can also include male engagement portions. The male engagement portions and female engagement portions are adapted to mate to form a formwork arrangement having a substantially flat exterior wall.

Abstract: An article of manufacture for building concrete structures from precast blocks and the process for making the structural system. The block comprises one or more annular tire wall stack units embedded in reinforced concrete. Prestressing and/or post-tensioning structural reinforcing techniques are used with assembled building blocks. The blocks are made by placing used tire stacks in a form that centralizes the stacks so that reinforced concrete can be placed around them while maintaining a hollow core through the stacks. Horizontal interlocking between blocks uses reinforcing bars and/or a tongue and groove configuration, and/or post-tension wire strand placed in a recess or post-tension tubes formed in the blocks and mortared in-place during construction. Vertical interlocking between blocks uses a tongue-and-groove interlock, shiplap splicing, and reinforcing bars. Post-tension wire strand, pipe, or H-piles are placed in and through the stacks and mortared in-place during construction.

Abstract: A set of extruded panels is provided which can be assembled on site to create a permanent form-work for concrete. The set includes inside and outside extruded side wall panels which are arranged to be connected edge to edge to form inside and outside walls. Longitudinally spaced connecting wall panels span between the inside and outside walls at spaced positions across the width of the walls to hold the walls apart and define a hollow interior therebetween including a plurality of interconnected cells with a plurality of holes for communication of concrete and reinforcing bars between each cell and the next. Each connecting wall panel has T-shaped connectors at each edge for attachment to corresponding C-shaped receptacles on the side wall panels. Rigid foam insulation is inserted at the outside wall.

Abstract: A method and apparatus for manufacturing reinforced wall panels and reinforced roof panels and using the pre-manufactured reinforced wall and roof panels in the construction of a building structure at a building site. The reinforced wall and roof panels are molded using a molding medium consisting of two part polyurethane which is mixed with Portland cement. Reinforcing members and exterior weather resistant materials are placed within a mold and the mold is filled with the molding medium by injection or by pouring. The filled mold is then placed within a press to ensure against expansion by internal pressure caused by curing of the molding medium, thus ensuring dimensional accuracy of the finished panel. After hardening of the molding medium, the mold is removed from the press, opened and the finished panel is removed from the mold and is stored until the molding medium has completely cured. The reinforcing members and weather resistant material constitute integral components of the building panel structure.

Abstract: A concrete wall forming system of mold units that include first and second panel members and a plurality of connecting members. The panel members each have a horizontal length of three to thirty feet and a vertical height of three to twenty feet. The inner sides of the panels include slots extending vertically therethrough. The connecting members are detachable and securable with respect to the panels and extend the length vertically therebetween to maintain a spatial distance for defining a molding chamber. The connecting members include flanges detachably and securably extending within the slots in the panels. A mid-section portion in the connecting members contains a plurality of pour holes spaced along its length vertically. Concrete can be poured into the molding chamber and through the pour holes and once allowed to set and harden forms an insulated concrete wall.

Abstract: A method is provided for optimizing routing on a substrate such as an integrated circuit or printed circuit board. The method defines a plurality of parallel strips on an initial routing layout of conductors for a layer of an integrated circuit. Each conductor within each strip defines a brick. For each of the plurality of strips, a spacing between bricks and a brick thickness of each brick is adjusted as a function of i) a location of a brick in adjacent strips corresponding to the same conductor; ii) a desired brick thickness; and iii) a desired brick spacing.

Abstract: The modular construction blocks include a preform having a plurality of passageways therethrough. The preforms may by formed from a plastic material and filled with concrete and steel reinforcing bars to form footings, foundations, girders, walls, and roofs. The modular construction blocks generally include a 5-hole block which has five holes or passageways extending therethrough and a 2-hole block which has two holes or passageways extending therethrough. The 5-hole blocks include the plurality of passageways intersecting and extending along three different planes. Kits, building structures, furring strips, and methods for forming building structures are also disclosed.

Abstract: A roofing element comprises a structural box of concrete and an insulating layer extending inside the structural box.

Abstract: The present invention relates a low cost, highly insulated light weight prefabricated building assembly capable of providing a swift, efficient and economic construction of exterior walls, interior walls and roofs to form a sturdy building assembly. The present invention includes a plurality of exterior wall panels; a plurality of styrofoam exterior connection blocks; the plurality of exterior connection blocks being capable of joining the plurality of exterior wall panels that form an exterior wall of the building; a plurality of roof panels, where the plurality of roof panels form a roof of the building; a plurality of interior wall panels; and a plurality of interior connection blocks. The plurality of interior connection blocks are used to connect the plurality of interior wall panels that form at least one interior wall of the building.

Abstract: An elongate sleeve tie is used with casting form ties in the manufacture of composite wall structures. The casting form ties and sleeve ties act to secure one or more casting forms in a rigid position relative to an insulating layer positioned between the casting forms during the manufacture of composite wall structures. The casting form tie is received in a central recess of the elongate sleeve tie. Once the composite wall has been formed, the casting form ties may be pulled out of the wall, leaving the elongate sleeve ties in place. Removal of the casting form ties eliminates the thermal bridges that metal casting form ties would otherwise create. At least a portion of the sleeve tie is formed of a material having a high thermal resistance.

Abstract: Foam blocks may be manufactured using a two part urethane foaming agent or the like at the construction site using a mold that may be disassembled into a plurality of component pieces for ease of transportation and to facilitate removal of a block. Preferably, the blocks are formed in the mold in which a facing is placed such that the facing is bonded to the foam of the block. A wall constructed from successive courses of blocks will have intersecting horizontal and vertical channels which may be filled with concrete and reinforcing rod to produce a wall with high horizontal and vertical load capacity as well as superior insulating properties.

Abstract: The invention relates to a prefabricated construction element for buildings in prefabricated construction, comprising a core element (10) and at least one reinforcement element (12). In order to absorb high tensile and transverse forces without the danger of developing cracks, the reinforcement element is configured as a flat material element (12) from fiber-reinforced plastic that is fixated on a lateral face (20) of the core element (10) in a form-fit and/or a material fit.

Abstract: A construction block, bed gasket and butt gasket are described, as well as a unique construction method for constructing a construction array utilizing the construction blocks and gaskets. The construction blocks comprise a first and second load bearing faces, first and second engaging faces, an inner face and an outer face, which faces define a block passage, as well as at least one lifting rod to aid in assembly of the construction array. The construction method utilizes bed gasket and butt gasket to provide for ease of assembly of the construction blocks, as well as other benefits.

Abstract: A modular assembly for creating formwork for casting vertical concrete structures is characterized by elongated wall elements which are disposed in edge to edge relationship in two facing rows and which are simultaneously retained in edge to edge relationship and in facing relationship by connecting members. Retaining elements slidably engage connecting members and wall elements in diagonal relationship. Connecting members include engagement means for cooperating with notches in rigid panels which are disposed against the interior surfaces of flat walls formed by the formwork.

Abstract: A device for creating a receptacle within preformed walls, the preformed walls having an internal wall and an external wall such that a curable material may be poured therebetween. The device having a first, second, third, and fourth panel that are interconnected and receive a fifth panel at an inner edge thereof such that an opening is defined by the first, second, third, and fourth panel at an outer edge thereof which is distal to the fifth panel. Inserting the device into a cavity defined through the internal wall such that the outer edge of the first, second, third, and fourth panels may be attached to the internal wall during pouring of the curable material. The opening adapted to receive a member therein.