Abstract: A repair element for a formwork board that includes a housing. The repairing element comprising a first member made of thermoplastic material and a second member made of porous material, wherein the second member acts as a support of the first member, the first member being arranged on the second member. The first member has a height that partially projects from the board once the repairing element is fixed in the housing, the first member being suitable for filling a cavity existing between the repairing element and the housing once the repairing element is placed in the housing after being at least partially melted, thus sealing the attachment between the repairing element and the board. Repairing method of the board with the repairing element.

Abstract: A self-climbing scaffold system that includes rails and shoes fixed to concrete sections of a building that are adapted for guiding the rail in a climbing direction Z. The system further includes a guide element pivotally coupled to the rail, the guide element having at least a first guide surface which, in a prior position before a threading position for threading the rail, projects with respect to the rail towards a corresponding concrete section. The first guide surface is adapted for interfacing with the shoe in said prior position and straightening the rail with respect to the shoe as said first guide surface moves in a guided manner in the shoe pivoting with respect to the rail.

Abstract: A formwork structural member having at least one core made of a material that has a density between approximately 40 kg/m3 and approximately 500 kg/m3, and at least one metal casing that substantially covers an outer contour of the core, the metal casing being arranged attached to the core.

Abstract: The present disclosure relates to a perimetric protection system for buildings undergoing construction including at least two masts (1) spaced from one another and each formed by two vertical U-profiles (1); a horizontal platform (3) supported on at least two horizontal beams (300) attached to the masts by means of first attachment elements or anchors (130). The system further comprises: at least two inclined beams (100) parallel to one another, which are attached: to the masts (1) by means of at least two second attachment elements (110) forming a first angle (?); to the horizontal beams (300) by means of at least two third attachment elements (310) forming a second angle (?); and, the at least two inclined beams (100) having a free end (100a) in the third attachment elements (310), such that their height is greater than the height of the horizontal platform (2); an inclined protective panel (120) attached to said at least two inclined beams (100).

Abstract: The present invention describe a process and an installation for the production of stiff recyclable sandwich-type polymeric panels, preferably polypropylene-based panels, and the panel obtained, comprising three lines, in one of which a polymeric polypropylene-based foamed core is produced by extrusion (line A); the structural skins are produced in a second line (line B), which skins are formed by a polypropylene-based lamina reinforced with wood fiber, on which lamina there is applied an also polypropylene-based surface coating layer reinforced with glass fibers; in the third line the structural skins produced in line B are adhered by heat and pressure to the foamed core produced in line A. The sandwich panel produced has a thickness between 7 and 40 mm, an overall density of 400-700 kg/m3 and an elastic modulus of 5-10 GPa.

Abstract: The system used to form slabs on large surfaces includes a grid structure comprised of vertical braces, support bolsters, primary beams and cross beams, all of which rest on the bolsters, with the cross beams closing the grid and providing a stiffness to the structure that allows assembly of the entire grid structure and the later positioning of the formwork panels. The bolsters provide support so that the beams can descend to a stripping position allowing to recover, before the concrete sets, both the beams and the panels. The longitudinal beams are provided with supports for the panels, constructed such that they allow the panels to hang vertically during the stripping operation. The cross beams end at a profile made of rubber or the like providing a means for sealing the grid, as well as for absorbing any possible clearances originated during the assembly of the panels.

Abstract: A slab formwork comprising vertical props, fixed bolsters mounted on the upper end of the props and shuttering panels supported on the bolsters. In correspondence with the four corners of a planar, horizontal and upper surface of the bolsters, some diagonal protuberances project outward with their upper surface inclined downward toward the interior and with two slopes defining individual inclined planes convergent in a common and longitudinal edge, the upper surface defining the support for the corresponding shuttering panels, the latter having on their corners some reinforcements. There are also defined complementary inclined surfaces to the two slopes of the upper surfaces of the protuberances, those reinforcements being supplemented with lateral flanges by means of which it is possible to hang the shuttering panels, both for carrying out their erection and for their dismantling.

Abstract: A formwork is structured of a lower substrate of beams that are supported on struts, and a substrate with identical beams supported on and perpendicular to the lower beams. Resting upon the upper beams, there are panels of wood that make up the surface of the formwork; the beams are formed from steel plate of great strength and small wall thickness. The beams (1) have a trapezoidal configuration with an upper projection forming a channel that holds wooden strips. The beams have lateral folds or lateral ridges for rigidity. The beams of the lower substrate rest upon bidirectional heads (4) having wings (16) and a lower cylindrical portion (14) that connects onto the upper end of a corresponding strut.