BG1098U1 - Pvc-based construction shuttering - Google Patents

Abstract

The PVC-based construction formwork comprises construction shuttering panels (1), which are mounted prior to casting the concrete; they are used to keep the concrete and ensure its hardening. Such panels are manufactured on the basis of an elastic PVC material, while the fact that they are manufactured together with walls ensures even distribution of the load.

Description

Technical field

This utility model relates to a construction formwork comprising construction formwork panels that are installed before pouring concrete and used to hold the concrete to ensure its tightening and remain installed for a period of time after the concrete is poured.

The present utility model also relates to the production of such webs on the basis of elastic PVC, with walls providing an equal distribution of load between them.

BACKGROUND OF THE INVENTION

It is known that concrete is poured into the structure after mounting the supports and floor formwork and installing the reinforcement. After some period the shuttering panels are removed, the walls are built, plastered, and then the rest of the construction works are carried out.

Mainly for floor formwork wooden and metal panels are used.

Metal panels are preferred over wooden ones on the one hand in terms of durability; however, the water contained in the mortar contributes to the corrosion of these sails. Corrosion is undesirable in these sails. Only one side of these sails is in contact with the mortar, the other side does not allow alternate use.

Because they are heavy, carrying and transporting them is more labor-intensive and expensive than wooden sails. It is not possible to cut and reshape them, as in wooden ones. For this reason, when the formwork does not fit as needed, part of it has to be finished with wooden formwork elements. For this reason, builders using metal shuttering must also have some wood available.

Wooden formwork does not have some of the above disadvantages. For example, since wooden sails are lighter than metal ones, their transportation and transportation does not cause problems like metal ones. Because wooden panels can be cut and cut, they fit any size.

For wooden sails it is necessary to smear their surface with tar before pouring the concrete. This additional operation prevents the concrete from sticking to the surface of the canvas. As tar contains water, over time the wooden sails swell and warp. The deformation of the surfaces leaves permanent imprints on the concrete. A thick layer of plaster is required to erase these prints. For this reason, costs are unnecessarily rising.

Practice shows that sometimes the webs are cracked or broken after pouring the concrete due to unequal load distribution. Only one side of the canvas can be used effectively, whether it is wooden or metal.

The technical nature of the utility model

This utility model aims to solve the problems listed above. To accomplish this task, a construction formwork has been designed, incorporating a canvas with smooth surfaces, whose weight is much less than that of wooden or metal canvases, which has a suitable structure to distribute the pressure on itself and which can be cut at need to fit the size.

The utility model provides a construction formwork comprising a construction formwork made of PVC with at least one horizontal flat surface. The outer surface of the canvas (which will come in contact with the formwork during pouring of the concrete) can be made so smooth that it does not cause any residual prints.

According to a preferred embodiment, a second flat horizontal surface parallel to the first is provided. In this way, the second surface does not need further processing (resin coating, etc.), thus increasing the life of the canvas.

According to another preferred embodiment, the construction formwork is provided with walls between the upper and lower horizontal levels. The vertical walls are arranged from a flat upper horizontal surface relative to the second lower horizontal surface perpendicularly. Other walls are located from one horizontal surface to another second horizontal surface at a certain angle. Thanks to these walls, load cushioning is achieved after concrete is poured.

Description of the attached figures

Figure 1 is a perspective view of a construction formwork;

Figure 2 is a side projection of the canvas.

Examples of implementation of the utility model

According to the attached FIG. 1, construction formwork includes construction formwork panels 1. Each formwork formwork 1 is made by the method of extrusion from PVC material. Formwork web 1 has flat surfaces 2 on the upper and lower horizontal level. The surface on which the concrete will be poured is made up of many shuttering panels 1, positioned side by side.

According to the attached FIG. 2, the shuttering web 1 has walls 3 designed to transfer the load between the upper horizontal surface 2.1 and the lower horizontal surface

2.2 after pouring the concrete.

The aforementioned walls 3 are designed to withstand horizontal and vertical loads and prevent damage to the formwork web 1. The lower and upper surfaces 2.1, 2.2 of the walls 3 are connected to each other. Upper and lower surfaces 2.1,

2.2 are parallel to each other. Walls 3 are vertical walls 3.1 or sloping walls 3.2. While the vertical walls 3.1 are disposed from one flat surface 2 relative to another second such 2.2 at an angle of 90 °, the inclined walls 3.2 are disposed from one upper flat surface 2 relative to the other lower

2.2 at a certain angle. This angle is preferably 45 °.

The utility model is not limited to the above embodiments. Obviously, many changes can be made to it in terms of size and construction, while the basic idea for a PVC construction shutter having at least one flat surface remains constant.

Claims (5)

Claims A polyvinyl chloride based formwork comprising formwork webs, characterized in that each formwork web (1) is made of PVC with at least one flat horizontal surface (2). Construction formwork according to claim 1, characterized in that the shuttering web (1) has a second lower flat horizontal surface (2, 2.2) parallel to said upper flat horizontal surface (2.1). Construction formwork according to claim 2, characterized in that the shuttering web (1) includes walls (3) located between the upper flat horizontal surface (2.1) and the lower flat horizontal surface (2.2). Building formwork according to Claims 2 and 3, characterized in that the formwork web (1) includes vertical walls (3.1) perpendicular to the upper flat horizontal surface (2.1) relative to the second second flat surface (2.2). Building formwork according to Claims 1 to 3, characterized in that it includes sloping walls (3.2) located from an upper flat horizontal surface (2.1) with respect to the second second flat surface (2.2) at a known angle.