There is provided a prefabricated floor panel (101) for use with a supporting structure (103) including a floor member (105) the floor member (105) defining a floor surface (107) and being adapted to engage with an adjacent similar floor panel (101) and at least one or more strengthening beams (109) configured to engage with the supporting structure (103) in use to support the prefabricated floor panel (101).

Disclosed herein are low density fiber cement articles, such as fiber cement building panels and sheets, comprised of multiple overlaying fiber cement substrate layers having small and uniform entrained air pockets distributed throughout. Also disclosed herein are air entrainment systems and methods for manufacturing aerated low density fiber cement panels or sheets with consistent air void content and uniform air void distribution. Also disclosed herein are air entrainment technologies adapted to work in conjunction with the Hatschek process to produce aerated fiber cement articles having controlled air void content and distribution.

The invention comprises a relatively lightweight cementitious-based material panel. The cementitious-based material panel comprises a foam insulating panel having a first surface and a second surface; a first structural layer of cementitious-based material formed on the first surface of the foam insulating panel and affixed thereto; and a second non-structural layer of cementitious-based material formed on the second surface of the foam insulating panel and affixed thereto. The second non-structural layer of cementitious-based material is substantially thinner than the first structural layer of concrete. The second non-structural layer of cementitious-based material is preferably formed from polymer modified concrete, plaster or mortar. A method of making the cementitious-based material panel is also disclosed.

A construction panel comprising a rigid insulation layer having an interior surface and an exterior surface, an outer concrete wythe secured to the exterior surface of the insulation layer, an inner concrete wythe secured to the interior surface of the insulation layer, a grid system which ties the outer concrete wythe to the inner concrete wythe and a capillary tube system located within the construction panel wherein liquid is passed through the tubing in order to increase or decrease the temperature of the construction panel.

The invention relates to a reinforcing element (1) comprising a first (2) and a second reinforcing mat (3) having metal mat rods (6), which are welded at angles to each other at junction points (7), which reinforcing mats (2, 3) are held spaced apart from each other at a normal distance (9) by rod-shaped spacers (8) with respect to the first mat plane (4) and the second mat plane (5) of the reinforcing mats. The spacers are metal (8) and are permanently connected to individual mat rods (6) of the first (2) and second reinforcing mat (3) by welding connections (10), preferably resistance welding connections, wherein at least individual spacers (8) protrude outward at least beyond the first mat plane (4) of the first reinforcing mat (2) in a direction (11) pointing away from the second reinforcing mat (3) by a first protrusion length. The invention further relates to a double wall furnished with the reinforcing element and a method for producing the reinforcing element and the double wall.

A precast concrete wall panel and system comprising pre-stressed concrete layers surrounding an insulation layer, the concrete layers prestressed using fiber reinforce polymer bar rebar.

A method of making a concrete panel board is provided. The method includes the steps of: (a) providing a substrate; (b) applying a primer layer to the substrate; (c) drying the board after step b; (d) applying a thinset mortar layer to the primer layer; (e) drying the board after step d; (f) applying a plaster layer to the thinset mortar layer; (g) drying the board after step f; and (h) applying a sealant layer to the plaster layer.

Systems and methods for a concrete apparatus with incorporated lifter are provided. A concrete apparatus is formed by placing a reinforcement system in a mold. The reinforcement system comprises a lifter. Concrete is poured into the mold such that the lifter protrudes from the poured concrete. After the concrete has hardened and the mold is removed, the lifter is used to carry and position the concrete apparatus. After the concrete apparatus is positioned, the lifter is removed at the circumference of the concrete apparatus leaving no holes, thereby eliminating water leakage due to lifting methods.

A method for manufacturing cladding elements for use in construction, including a composite cement-based structure, including an elastically deformable support element having a first surface, a second surface and a plurality of spacer elements having an elongated shape positioned between the first and second surface to realize a plurality of interconnected cavities. The method further provides preparing a substantially fluid and water-based cementitious composition and introducing the substantially fluid cementitious composition into the support element to obtain a composite structure in a deformable state. After this, part of the fluid cementitious composition is removed from the support element, to eliminate the excess fluid cementitious composition and position the deformable composite structure in a forming device. The method provides for maintaining the deformable composite structure in association with the forming device, until the consolidation thereof and that said support element is constituted by a three-dimensional elastically deformable fabric.

The present invention pertains to an element of an autoclave aerated concrete (AAC) material having a web of a second material different from AAC embedded therein and generally centrally disposed in a depth dimension of the element and between two planar faces and the second material supporting hardware for connecting the element to other structures.