Constructive system comprising at least four modular elongated prefabricated floor elements, each floor element defining a longitudinal axis parallel to its long side and a transversal axis parallel to its short side, and being arranged coplanar in a 2×2 matrix configuration such that each floor element is adjacent to another element by one of its long sides and adjacent to another of the elements by one of its short sides, the ends of the short sides of the floor elements resting on linear supporting elements, the floor elements comprising in the vertical face of each of the long sides a longitudinal groove having the direction of the longitudinal axis such that a cavity is formed between each pair of adjacent floor elements, the cavities being filled with a grouting, the system including at least one duct extending continuously along the two cavities and a post-tensioned tendon within the duct.

In a first aspect there is disclosed building panel (100) for forming a load-bearing structure. The building panel (10) comprises a backing member (102) and a strengthening element (104) mountable to the backing member (102). The building panel (100) further includes a void former (110) mountable to the backing member (102) and disposed adjacent to the strengthening element (104) for forming a void (112) in the structure wherein the backing member (102), the strengthening element (104) and the void former (110) are configured to receive a mixture curable to form the structure.

A precast floor system and precast radiant floor modules provide an alternative to conventional radiant systems that are installed in the field. Radiant circuits are embedded in concrete floor planks when they are precast, thereby forming precast radiant floor modules. The radiant circuits can be pre-configured into multiple temperature-controlled zones in the floor plank. The precast floor system is assembled by arranging ribbed and non-ribbed precast radiant floor modules in an alternating configuration where non-ribbed precast radiant floor modules are supported along their edges by the ribs on the ribbed precast radiant floor modules.

A precast floor system and precast radiant floor modules provide an alternative to conventional radiant systems that are installed in the field. Radiant circuits are embedded in concrete floor planks when they are precast, thereby forming precast radiant floor modules. The radiant circuits can be pre-configured into multiple temperature-controlled zones in the floor plank. The precast floor system is assembled by arranging ribbed and non-ribbed precast radiant floor modules in an alternating configuration where non-ribbed precast radiant floor modules are supported along their edges by the ribs on the ribbed precast radiant floor modules.

The invention comprises a product. The product comprises a first removable concrete form having a concrete forming face and a first insulating panel insert having a first primary surface and an opposite second primary surface, wherein the second primary surface of the first insulating panel insert contacts the concrete forming face of the first removable concrete form. The product also comprises an elongate anchor member having an enlarged portion and an elongate portion, the elongate portion having a first end and an opposite second end, wherein the enlarged portion is disposed adjacent the first end and contacts the second primary surface of the first insulating panel insert and wherein the elongate portion extends through the first insulating panel insert and extends outwardly from the first primary surface of the first insulating panel insert. A method of using a removable insulated concrete form system is also disclosed.

A floor vent including a grille defining a plurality of vent openings and cross-members therebetween, and one or more pins corresponding to a respective one or more of said cross-members, wherein each of the one or more pins may be either (a) contained within the respective cross-members, or (b) affixed to the respective cross-members, and wherein the one or more pins are formed of material or materials that are substantially stronger than the material or materials of which the respective cross-members are formed, to provide for strengthening the respective cross-members.

The present apparatus and method relates in general to sealing a hole in a floor with a precast plug. A precast plug is created by pouring a wet aggregate mix into a form mold and thereafter inserting a pre formed rod into the uncured mixture, positioning it such that the center of the rod rests in the center of the form mold and the ends of the rod extend outward near the top of the form mold. The mix is then cured. The precast plug may then be transported to the hole that it is destined to fix. Grooves may be carved on either side of the hole to accommodate the rod' s ends. The interior of the hole and the exterior of the plug may then be covered with a sealant, after which the plug may be inserted into the hole. Once the sealant cures, the hole is fully repaired.

The present apparatus and method relates in general to sealing a hole in a floor with a precast plug. A precast plug is created by pouring a wet aggregate mix into a form mold and thereafter inserting a pre formed rod into the uncured mixture, positioning it such that the center of the rod rests in the center of the form mold and the ends of the rod extend outward near the top of the form mold. The mix is then cured. The precast plug may then be transported to the hole that it is destined to fix. Grooves may be carved on either side of the hole to accommodate the rod' s ends. The interior of the hole and the exterior of the plug may then be covered with a sealant, after which the plug may be inserted into the hole. Once the sealant cures, the hole is fully repaired.

A floor assembly is provided. The floor assembly is configured to form or be positioned on a floor of an enclosed space. The floor assembly includes a grid, a pan, and a surround member. The grid has an array of openings configured to allow passage of liquid. The pan is disposed beneath the grid and defines a cavity. The pan includes a pan floor and a frame. The frame is disposed laterally outward of the pan floor and supports the grid. The surround member is supported by the frame. The surround member is disposed laterally outward of the grid, and the surround member and grid do not overlap.