OA20004A - Construction system made of walls or partitions made of cement or plasterboard panels. - Google Patents

Abstract

In general, the real estate sector in Cameroon is marked by often very long construction times. This implies a fairly high construction cost that sometimes does not take into account aspects related to the thermal and sound insulation of buildings. In order to overcome these drawbacks, the CONSTRUCTION SYSTEM MADE OF WALLS OR PARTITIONS IN CEMENT OR PLASTER PANELS was created: it is a pre-industrialized system that saves time and avoids the additional costs experienced by old buildings. This system combines speed of implementation, cost reduction, moreover, it guarantees the thermal and sound insulation of buildings. Thus, this new system will on the one hand considerably improve the construction field in Cameroon and on the other hand will allow for sustainable environmental development.

Description

The present invention relates to a system for constructing buildings from conventional construction materials, notably using earth, steel wire, cement and sand, all arranged in a material which saves time, costs, aesthetics and thermal and sound insulation.

The housing sector in Africa in general and in Cameroon in particular is dominated by concrete block construction. Plank and earth brick construction are also used depending on the builder's needs. These different types of construction were made each time to address the shortcomings of previous techniques, as each type of construction has major drawbacks, including high costs, long construction times, the quality of the material used, and the aesthetic appearance of the construction.

In the context of earth brick wall construction, bricks are only made during the dry season to allow the bricks to dry before the wall is built. In addition, the wall is built brick by brick, which lengthens the time. Running electrical cables and plumbing pipes is a real challenge.

In the context of building concrete block walls, although the wall is solid, the cost and time of construction remain a real difficulty, as does the passage of cables and plumbing pipes which requires additional operations of drilling the wall.

In the context of plank construction, the walls are made with wooden beam uprights onto which planks are nailed. The advantage of this system is that the building and the foundations are lightweight, resulting in a low and affordable cost. The wood, which is the main element, is available in our forests. However, there are certain disadvantages: the lack of thermal and sound insulation, the lifespan of the building, which is very limited because wood is a material that deteriorates easily. Ultimately, this construction does not provide any safety or comfort because it is poorly resistant to bad weather.

DUPLICATE

It is to correct the various drawbacks encountered during the construction of previous types of construction that the CONSTRUCTION SYSTEM MADE OF WALLS OR PARTITIONS IN CEMENT OR PLASTER PANELS called "TERRALIGHT" was created.

Unlike the earth brick construction system, the TERRALIGHT system can be built in all seasons. The panels, whose exterior surfaces are already finished, simultaneously act as formwork and wall. The smooth, ready-to-paint finish has a similar appearance to a concrete wall and is much more pleasing to the eye and to the touch. The structure is quickly assembled and filled with compacted damp earth called rammed earth, cellular concrete, or polystyrene-reinforced concrete. In terms of cable and plumbing piping, everything is done in the formwork, the frame of which is either wooden or metal, before being filled with insulation.

Unlike the concrete block construction system, the TERRALIGHT system has a smoother appearance made up of 90% earth, which is a readily available material, which significantly reduces costs. The walls are built by pouring cellular concrete or lightweight concrete into the assembled metal frame, or by filling rammed earth into the previously assembled wooden frame. This system allows for a considerable reduction in construction times. Passing cables and plumbing pipes is easy, as there is no need to drill or break. The metal mesh facilitates the pouring of mortar or cellular concrete, and allows for reinforcement of the wall. The wooden formwork serves as a container into which the rammed earth is poured. The wall thus filled with earth is solid and constitutes an excellent thermal and sound insulator.

Unlike the plank construction system, the TERRALIGHT system solves the problem of wall strength, while ensuring thermal and sound insulation, thus providing good value for money.

Finally, the TERRALIGHT system offers the possibility, for those who are handy, to build their own house without having to resort to additional costs from specialists.

DUPLICATE

The TERRALIGHT construction system is composed of a metal lattice (metal frame) or a wooden structure, or a mixed structure (wood and metal lattice) and panels called plasterboard, placolight or placokraft.

The figures in the appendix provide a better understanding of the construction system. These include: the wooden structure or wooden frame (Figure 1), the metal mesh or metal frame (Figure 2), the principle of mounting the panel hooks on the metal frame (Figure 3), the principle of mounting TERRALIGHT on the metal frame (Figure 4), the principle of mounting TERRALIGHT on the wooden frame (Figure 5), the method of filling with cellular concrete or lightweight concrete on the metal frame (Figure 6), the method of filling with cellular concrete or lightweight concrete on the mixed frame (Figure 6), the method of filling with rammed earth on the wooden frame (Figure 7), the different layers making up the placokraft panel (Figure 8), the different layers making up the placokraft panel for interior and ceiling plastering (Figure 9), the plastering method with the panels [placociment, placolight and placokraft] (Figure 10), the principle of mounting partitions on a mixed frame (Figure 11), the principle of assembly of the mixed structure or mixed frame (Figure 12), the principle of assembly of window openings (Figure 13), the method of wall insulation (Figure 14), the principle of assembly of door openings (Figure 15), the different layers making up the plasterboard panel (Figure 16), the different layers making up the placolight panel for interior plastering and ceiling (Figure 17).

The metal mesh or metal frame:

The wire mesh is composed of a lower crosspiece, uprights, and an upper crosspiece in Galvanized steel with a 50x50mm mesh and a 3mm wire diameter (Figure 2).

The wooden structure or wooden frame:

The structure is made of planks assembled to form a formwork (Figure 1).

DUPLICATE

The PLACOCIMENT panel:

The two-component PLACOCIMENT panel consists of a layer of plaster and cellular concrete.

The PLACOLIGHT panel:

The two-component PLACOLIGHT panel consists of a layer of plaster and polystyrene-reinforced concrete.

The PLACOKRAFT panel:

The PLACOKRAFT panel is made up of 2 layers of water-resistant KRAFT paper and a layer of polystyrene-reinforced concrete.

The Filling Mortar:

The different filling mortars are as follows:

• rammed earth mortar (compacted wet earth: earth and water);

• cellular concrete mortar (cement, water, sand and foaming agent);

• lightweight concrete mortar (cement, water, sand and polystyrene beads).

The TERRALIGHT metal frame construction system is assembled as follows:

Layout for wall placement;

- Assembly of the metal structure carried out on the ground (Figure 2, Figure 3); Raise, align and fix the structure following the lines and stabilize the wall using mortar (figure 4);

Fix the placolight, placocement or placokraft panels to the interior and exterior faces of the wall using folded sheet metal plates as follows (Figure 4, Figure 10);

Pour the cellular concrete or lightweight concrete (Figure 6).

The assembly process for the TERRALIGHT wood frame wall is as follows:

Layout for wall placement

Assembly of the wooden structure carried out on the ground (Figure 1, Figure 5)

DUPLICATE

Raise, align and fix the structure according to the tracings and stabilize the wall using mortar;

Fix the placolight, placocement or placokraft panels on the interior and exterior faces of the wall (Figure 4, Figure 10);

Pour the rammed earth (Figure 7).

The assembly process for the TERRALIGHT mixed frame wall is as follows:

Layout for wall placement;

Assembly of the mixed structure carried out on the ground (Figure 11, Figure 12);

Raise, align and fix the structure according to the tracings and stabilize the wall using mortar (figure 12);

Fix the placolight, placocement or placokraft panels to the interior and exterior faces of the wall using folded sheet metal plates as follows (Figure 10);

Pour the cellular concrete or lightweight concrete (Figure 6).

DUPLICATE

Claims (3)

1. The TERRALIGHT construction system is characterized by a mixed frame on which cement or plaster panels are fixed on either side and into which cellular concrete, polystyrene-reinforced concrete or rammed earth is poured between the panels, and this assembly constitutes walls or partitions which provide sound and thermal insulation. 2. The panel system as described in claim (1) may be a plasterboard panel characterized in that it is a two-component consisting of 02 layers of water-resistant kraft paper and polystyrene-lightened concrete. io 3. A mixed frame as described in claim (l) characterized in that it is composed of a low and high crosspiece made of galvanized metal mesh with a 50x50mm mesh and a 3mm wire diameter, wooden uprights, and on which the panels are fixed by means of screws.