BE1025014B1 - Hardening - Google Patents

Abstract

Hardening with an upper structure and a lower structure, the upper structure comprising a hardened surface with openings and a raised edge enclosing the hardened surface, a substantially watertight layer being provided between the upper structure and the lower structure such that the watertight layer and the raised edge water container, wherein a water pump is provided to pump water to and from the container, such that the hardened surface is below a water surface when the container is full and above a water surface when the container is pumped empty, wherein the substructure is formed with one or more cavities as a water buffer for the water pump and wherein the substructure has infiltration openings.

Description

(30) Priority data:

(73) Holder (s):

ATRIUM.GREEN BVBA

9100, SAINT-NICOLAS

Belgium (72) Inventor (s):

SWINNEN Kristof Leon Maria 9100 SAINT-NICOLAS Belgium (54) Pavement (57) Pavement with a superstructure and a substructure, the superstructure containing a paved surface with openings and an upright edge enclosing the paved surface, between the superstructure and the substructure a mainly waterproof layer is provided such that the waterproof layer and the raised edge function as a container for water, a water pump being provided to pump water to and from the container, such that the paved surface is below a water surface when the container is pumped full and is above a water surface when the container is pumped empty, the substructure being formed with one or more cavities as a water buffer for the water pump and the substructure having infiltration openings.

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BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy

Publication number: 1025014

Filing number: BE2017 / 5111

Intellectual Property Office

International classification: E03F 1/00 B05B 17/08 EOIC 11/22 Date of issue: 02/10/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on 23/02/2017.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

ATRIUM.GREEN BVBA, Atomiumstraat 19,9100 SAINT-NICOLAS Belgium;

represented by

PHILIPPAERTS Yannick, Meir 24 box 17, 2000, ANTWERP;

a Belgian invention patent with a term of 20 years, subject to payment of the annual fees as referred to in Article XI.48, § 1 of the Code of Economic Law, for: Pavement.

INVENTOR (S):

SWINEN Kristof Leon Maria, Atomiumstraat 19, 9100, SAINT-NICOLAS;

PRIORITY :

BREAKDOWN:

Split from basic application:

Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 02/10/2018,

With special authorization:

2017/5111

BE2017 / 5111 Pavement

The invention relates to a pavement. More particularly, the invention relates to a terrace.

Pavements such as terraces are typically constructed in public places and near residential or workplaces to create a clean and / or beautiful area where people can linger. Such terraces are typically impermeable or poorly water permeable, and are therefore often fitted with drainage systems for draining rainwater. Water management is particularly challenging in urban or densely built-up areas. In urban or densely built-up areas, a relatively large percentage of the subsurface is covered by buildings or pavements, such that water has little chance of infiltrating the subsurface. To avoid flooding, rainwater that falls on a building or pavement will always have to be drained, and then stored and / or infiltrated into the underground.

Several solutions have been devised to enable good water management in urban and heavily built-up areas. On the one hand, in many areas it is mandatory to provide a water buffer, for example by providing an underground rainwater tank. In addition, rainwater tanks are known with an infiltration system such that the rainwater from the rainwater tank can infiltrate into the underground. In many areas, legal restrictions are also laid down regarding the installation of pavements. This ensures that sufficient non-paved surface remains available in the area where rainwater can infiltrate the surface. These legal restrictions serve a further aesthetic purpose, namely surfacing is considered unnatural in an environment. By limiting “unnatural” pavements, the authenticity of the environment and the presence of natural surfaces such as water and greenery (grass, trees, plants) can be preserved.

It is an object of the invention to provide a pavement with a low aesthetic impact on the environment, and with improved water management.

To this end, the invention provides a pavement with a superstructure and a sub-structure, the superstructure comprising a hardened surface with openings and an upright edge enclosing the paved surface, wherein a mainly waterproof layer is provided between the superstructure and the sub-structure such that the watertight layer and the raised edge act as a receptacle for water, a water pump being provided to pump water to and from the receptacle, such that the paved surface is below a water surface when the receptacle is pumped full and above a water surface when the container is pumped empty, the substructure being formed with one or more cavities as a water buffer for the water pump and the substructure having infiltration openings.

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The pavement according to the invention is constructed with a superstructure and a substructure. The upper structure is provided with a hardened surface which is located in a water container. The receptacle is connected to a water pump so that water can be pumped into the receptacle so that the water surface extends above the paved surface. Water can also be pumped out of the container so that the water surface is below the paved surface. This is achieved by pumping water in and out of the superstructure via the water pump. This allows a user or manager of the pavement to choose whether the top layer of the pavement is formed by the paved surface or by a water layer. It is also easy to switch between the two. This makes it possible to pump the pavement according to the invention in use "dry" or "empty", so that the water surface is below the paved surface and so that the pavement can be used and observed by a person as pavement. Furthermore, a pavement according to the invention can be pumped “full” when not in use, so that the water surface will lie above the paved surface and so that a user perceives the pavement as the water surface. In the latter situation, the paved surface is under water. A water surface gives a natural visual impression and therefore has a small aesthetic impact on the environment.

The pavement according to the invention further has a substructure with cavities that can function as a water buffer. Rainwater may or may not be temporarily stored here. Furthermore, infiltration openings are provided in the substructure, so that water can infiltrate into the underground. The pavement according to the invention thus provides a mechanism for doing water management. Namely, water can be stored under the paved surface. Furthermore, infiltration openings can be provided under the paved surface, such that the surface on which water can infiltrate into the substrate is essentially the same size as the surface of the pavement. Furthermore, the paved surface overlaps the infiltration surface in such a way that space is optimally used.

Preferably, the openings are formed to allow water to flow from above the paved surface to the waterproof layer. When the water pump pumps water out of the container, the water can flow through the openings from above the paved surface to the waterproof layer, which is below the paved surface. This makes it easy to pump out water. The openings thereby allow water that is on and / or above the paved surface, and makes the paved surface "wet", to flow down, so that the paved surface can be "dry" in a relatively short time. Even when water is pumped to the container, the water can still be pumped through the openings from the waterproof layer to above the paved surface.

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Preferably, the substructure is formed by several modules, each module containing at least one of the one or more cavities. By modularly forming the substructure, pavements of different shapes and sizes can be realized in a simple manner.

Preferably, the cavities of the multiple modules are connected to each other via at least one tube extending between the modules, so that the cavities form communicating vessels. By connecting the multiple modules such that the cavities form communicating vessels, the multiple modules will function together as one large buffer vessel. This makes it possible to add water to one module, whereby the water is automatically and evenly distributed over the multiple modules. Water can also be extracted from one module, and the water will be redistributed evenly over the different modules, so that water from all modules can be used via one module.

Preferably, the modules have an upper edge that is shaped to hook into an upper edge of an adjacent module such that the multiple modules are connectable through their upper edges. By forming the upper edges of the modules compatible, different modules can be connected together as building blocks, so that a solid substructure can be formed by the multiple modules in a simple and time-efficient manner.

The upright edge is preferably provided on a peripheral edge of the multiple modules. The upright edge forms part of the superstructure and, together with the waterproof layer, forms the container for the water in the superstructure. By forming this upright edge on a peripheral edge of the multiple modules, the upright edge can easily be realized, and the upright edge is firmly supported.

Preferably, each module is provided with the infiltration openings that allow water to infiltrate from the cavities into the substrate. By providing each module with the infiltration openings, an infiltration surface is created that mainly corresponds to the surface of the pavement.

Preferably, the modules are covered by a plate, and the waterproof layer is provided above the plate. The plate forms a support surface for the superstructure. The modules are preferably stackable. By forming the modules stackable, transport of the modules will be considerably simplified. The modules can be shaped in a stackable manner, for example as pots that fit together.

Preferably, each module is provided with at least one support element and the support element is compatible with the module in at least two different mutual positions, so that a height of the module relative to the support element is adjustable. Through every module on

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BE2017 / 5111 to provide at least one support element, the height of the modules can be easily adjusted by adjusting the height of the support element relative to the module. This further allows the modules to be easily adjusted in height relative to each other. This simplifies the placement of the modules. In this context it is noted that the superstructure is provided to function as a container for water. Water will always flow horizontally, also called level. This means that the multiple modules must also be placed level. The support elements facilitate this because the modules can be set at different heights relative to the support elements.

Preferably, a support structure is provided on the waterproof layer to support the paved surface. By placing the paved surface on a supporting structure instead of directly on the waterproof layer, spaces, cavities or cracks can be provided in the supporting structure that allow water to flow under and between the paved surface.

Preferably, a level controller is provided for controlling the level of the water surface by controlling the water pump, a level of the water surface being adjustable based on an input. With the level controller, the water surface can be regulated to a predetermined level depending on the input of the user or manager. This allows to control the water surface above the paved surface. The water surface under the paved surface can also be regulated. The user or administrator can set or program the level control in different ways, on time and / or based on sensors.

Preferably, an external water reservoir is further provided. The external water reservoir can, for example, be used to pump the container full when all the water from the cavities has infiltrated into the substrate. For example in the summer, or in a dry period, the water buffer in the sub-structure of the pavement may be empty as a result of the infiltration openings. In such a situation, water from the external water reservoir can be used to flood the paved surface.

The pavement is preferably a terrace. Alternatively, the pavement is a driveway, a path, a street, or a part and / or combination thereof.

The invention will now be described in more detail with reference to an exemplary embodiment shown in the drawing.

In the drawing:

figure 1 shows a cross-section of a pavement according to an embodiment of the invention;

figure 2 shows a detail section of a pavement according to a further embodiment of the invention;

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BE2017 / 5111 figure 3 shows a further detail section of a pavement according to a further embodiment of the invention; and Figure 4 shows a stack of modules for use in the invention.

In the drawing, the same or analogous element is assigned the same reference numeral.

Figure 1 shows a pavement 1. In the embodiment shown, the pavement is shown as a terrace built with several terrace tiles. Based on the characteristics and description of the terrace, the skilled person will understand that other types of pavements can be formed on the same principle and with the same technical characteristics. Examples of pavements where the invention is applicable are driveways, pavements, roof terraces, paths, or parts thereof. The pavement 1 has a paved surface 4, which is shown in figure 1 as terrace tiles 4. Alternative materials for forming a paved surface 4 are natural stone, clinkers, pavers, pebble, or other paved materials that are suitable as a floor or as a substrate .

The pavement 1 is constructed with a superstructure 2 and a substructure 3.

The superstructure 2 extends above the substructure 3, preferably over the entire surface of the pavement 1. Alternatively, the superstructure 2 can extend further or less than the substructure 3 so that only a partial overlap takes place. Preferably, the superstructure 2 and substructure 3 have an overlap of at least 50% of their average area, more preferably at least 70% and most preferably at least 90% of their average area.

The hardened surface 4 is formed in the top structure 2. The top structure 2 further comprises an upright edge 5 which extends continuously along a periphery of the top structure 2. The upright edge 5 extends further to a height higher than the top point or top surface of the paved surface 4. More specifically, the upright edge will protrude at least 0.5 cm, more preferably at least 1 cm above the top point of the paved surface 4.

The upper structure 2 is separated from the lower structure 3 by a waterproof layer 6. The waterproof layer extends to the upright edge 5, and is connected thereto such that the waterproof layer 6 together with the upright edge 5 forms a suitable container for water retention. Since the raised edge 5 extends higher than the hardened surface 4, the container can retain water, the water surface being above the hardened surface 4. Thus, the paved surface 4 can be flooded. The person skilled in the art will understand that the water level in the container can be chosen so that the water surface lies below the hardened surface 4.

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The substructure 3 contains at least a cavity 11 for buffering water. Preferably, the cavity 11 extends over substantially the entire height of the sub-structure 3, and further preferably the cavity 11 extends over almost the entire surface of the sub-structure 3. As will be explained by the following embodiments the cavity 11 contains several compartments. The sub-structure 3 is provided, by the presence of the cavity 11, to function as a water buffer or as a rainwater tank.

From the above description of the superstructure 2, the person skilled in the art will understand that water can preferably be pumped to and from the container in order to flood or not flood the paved surface 4, depending on the wishes of the user or manager. A water pump 7 is provided for this. The embodiment of figure 1 is the water pump 7 provided in the sub-structure 3. The sub-structure 3 forms a water buffer so that water from the sub-structure 3 can be pumped to the superstructure 2. Water can also be pumped from the superstructure 2 to the sub-structure 3, depending on the operating direction of the pump 7.

In the embodiment of figure 1, the pump 7 is provided for pumping water via a valve 8 to a control vessel 9. The control vessel 9 is fluidly connected to the superstructure 2, in particular to the receptacle of the superstructure 2. The receptacle and the control vessel 9 preferably form communicating vessels. For communicating vessels that are open at the top and thus have an atmospheric pressure above the water, the water surface level in the container of the superstructure 2 will be almost identical to the water surface level in the control vessel 9. This makes it possible to place a level regulator 14 in the control vessel 9, whereby the aesthetic impact of the level controller 14 at the hardened surface 4 is nil, i.e. at the hardened surface 4, it is not necessary to place a level controller. Due to the fluid connection, illustrated in Figure 1 with reference numeral 10, the superstructure 2 and the regulating vessel 9 act as communicating vessels and the level of the water surface level in the container of the superstructure 2 can be measured in the regulating vessel 9. Furthermore, tests have shown that filling and emptying of the superstructure 2 can be easily implemented via a control vessel 9. Any turbulence of water as a result of the pumping will then be visible in the control vessel 9, and not at the hardened surface 4. In this context it is noted that the water can be controlled at different levels. For example, on a hot day, when people are sitting on a terrace, the water level can be pumped up to one or a few millimeters above the terrace surface to cool the feet. When the superstructure 2 is pumped full, the water level can be up to a few centimeters above the terrace surface.

Figure 1 further shows an external water supply 13 which is connected to the cavity 11 of the substructure 3. Via such an external water supply, water from remote

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BE2017 / 5111 places are supplied to the substructure 3. For example, water from a roof of a building can be supplied via the external water supply 13 to the cavity 11 of the substructure 3. This increases the functionality of the substructure 3 as a water buffer and as a water infiltration element, as will be further explained below.

In the embodiment of figure 1 a filter 15 is further provided for filtering water in the container of the superstructure 2. The filter has a return 16 and a return 17. In the embodiment of figure 1 a pump is provided in the superstructure 2 at the location of the return 16. The return 16, the filter 15 and the return 17 allow to circulate water which is located in the superstructure 2. Preferably, return and return are located in opposite sections of the superstructure 2 to create maximum circulation of water in the superstructure 2. The water in the superstructure 2 can be cleaned via the filter 15. The filter 15 may contain a filter element of one or more types, including a particle filter, an algae filter, a UV filter or other types of filter elements known for use in swimming pools and / or ponds.

In Figure 1, an overflow 18 is further provided in the superstructure 2. The overflow is preferably provided at a height which is substantially equal, or just below the upright edge 5. Excess water that ends up on the superstructure 2, and which for some reason does not get to the substructure 3 via the pump 7, can be discharged via the overflow 18. The overflow 18 is connected, for example, to the sewer or to a moat.

Figure 1 further shows how a controller 19 is provided for controlling one or more elements of the figure. For example, figure 1 shows how valve 8, level regulator 14 and filter 15 are operationally connected to the control 19. Preferably, pump 7 is also connected to the control 19. Control 19 further preferably comprises an operation 20 with which a user or manager can control the operation of set the pavement 1. Specifically, the control 20 provides an input mechanism with which a user or manager can provide an input on the basis of which the water level in the container of the superstructure 2 is regulated. In its most rudimentary form, a user or administrator can set the water level “high” or “low”. A high water level will correspond to a paved surface 4 that is under water, with which the pavement 1 appears as a water surface to a user. In the low position, the water level is below the hardened surface 4, so that the hardened surface appears as hardening for a user.

In an advanced embodiment, a user or manager can control the water level in the container of the superstructure 2 on the basis of time parameters and / or on the basis of sensors. For example, a presence detector may be operatively connected to the controller 19, such that the water level is kept low in the presence of one or

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BE2017 / 5111 several people, while the water level is set high when nobody is present. Settings can also be provided which have to do with water storage in the cavity 11 of the substructure 3, so that intelligent water management can be done.

Preferably, one or more skimmers (not shown) are provided in or on the superstructure 2, at the location of the drain and / or feed of water. Skimmers have been known to collect leaves and other large debris. This allows easy removal of the leaves and the large dirt. Skimmers are known in ponds and pools and are therefore not described in further detail. In the superstructure 2, surface skimmers, bottom skimmers as well as a combination thereof can be used.

Figure 2 shows a detail section of a preferred embodiment of the pavement 1. Figure 2 shows the superstructure 2 and the substructure 3. The figure also shows tiles 4 which are placed in the superstructure 2 at a height below the top of the edge 5. The tiles 4 are placed on a supporting structure 25 which supports the tile 4 at a distance from the waterproof layer 6. The supporting structure 25 is formed in a discontinuous manner or the supporting structure 25 has openings such that water can flow from under the tile 4 to above the tile and vice-versa. For example, by forming the support structure 25 from elements that support the tiles 4 only at their vertices, an embodiment is obtained in which water between adjacent tiles can flow from below the tiles 4 upwards to the tiles 4 and vice versa.

Figure 2 further illustrates how the superstructure 2 can be pumped full of water 24. Thus, Figure 2 illustrates that the water 24 can extend above the paved surface 4. On the basis of figure 2 it can also be understood that the water 24 can be pumped out of the superstructure 2 so that the hardened surface 4 comes to lie dry.

Figure 2 illustrates how the substructure 3 is modularly shaped. The sub-structure 3 in figure 2 is formed by a plurality of modules 21, wherein figure 2 fully represents one module, indicated with reference numeral 21a, and only an adjacent module 21b only partially. The person skilled in the art will understand that a terrace will be built with one or more, for instance several tens of such modules 21.

The modules 21 are supported by support elements 22. The support elements are provided to support the modules 21 at different heights. Preferably, the connection between the support elements 22 and the modules 21 is almost infinitely adjustable, so that fine adjustment of the height of the module 21 is possible. This makes it possible in a simple manner to set several modules 21 at the same height. This also makes it possible to level the modules 21. The support elements 22 have, for example, a screw thread which is compatible with a screw thread of the modules 21 so that a rotation of the support element 22 is

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BE2017 / 5111 involves a height change of the support element relative to the module 21 relative to the module.

The modules 21 are preferably provided at their top side with a plate 23 which acts as a support for the top structure. Also, the plate 23 will form the top of the cavities 11, so that the cavities 11 are closed. The plate 23 can be formed in different ways and from different materials. In a preferred embodiment, a hard mat is superimposed over several modules 21 to act as plate 23. In an alternative embodiment, each module 21 is provided with a plate that fits on the module 21 to close off the module 21 at the top.

Multiple modules 21 are fluidly interconnected, for example by providing a tube 26 between adjacent modules 21. The tube 26 is preferably positioned on an underside of the module 21 so that water can flow from one module 21 to another module 21 through the tube 26, even when the water level in the cavity 11 is low. By providing the tube 26 connecting the modules 21, the modules 21, in particular the cavities 6 formed therein, function as communicating vessels. As a result, the different cavities 11 can be regarded as one storage tank for the operation of the cavities 11 as water storage. At the top, the modules 21 are preferably provided with a ventilation and / or aeration opening so that the pressure in the cavity 11 of each module 21 is substantially atmospheric.

The modules 21 are provided with an upper edge at the location to be connected to each other, preferably by means of a hook connection. A specific example of a hook connection is a click connection, in which one edge can hook over an adjacent edge and click into it. By providing a hook connection, several modules can be easily connected to one another, so that a substructure 3 according to the invention can be realized in a cost-efficient manner.

Each module 21 is preferably provided with infiltration openings. Infiltration is illustrated in Fig. 2 with arrows 28. Infiltration openings aim to allow water to flow from cavities 11 to the subsurface at a predetermined flow rate. The predetermined flow rate has been determined to give the substrate sufficient time to allow the water 28 to penetrate. The predetermined flow rate is obtained by shaping the infiltration openings with a certain size, shape and frequency. In this way, a controlled release of water in the cavities 11 to the substrate can be made possible. This allows efficient water management to be carried out, whereby rainwater that comes down in a short period with a relatively large flow rate can be temporarily stored in the cavities 11, and in which case it is worth mentioning

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BE2017 / 5111 is given a longer period of time to infiltrate 28 into the subsurface. This prevents water problems, which can lead to flooding.

A further advantage of building up the substructure 3 with modules is that the modules are also suitable for deploying plants. This has the advantage that when the garden is being constructed the substructure 3 can first be placed, whereby no final choice has yet to be made as to which part is to be paved and which part is to be planted. Even after construction, the pavement can be extended or reduced relatively easily, whereby the superstructure is converted from planting to pavement or vice versa. The modules also allow to build a garden, city garden, patio, roof terrace, etc. with a combination of plants and pavement with water feature.

An important aspect of the invention is that the rainwater can buffer. When the pavement, both superstructure and substructure, is emptied, a huge volume is available as a buffer. The buffers can be emptied early if there is anticipated excessive rainfall. During the rainfall, the buffer will serve to prevent flooding. For this reason, at least in some countries governments subsidize green roofs. Because control is provided in the invention, by simply adding a network connection, for example by providing a SIM card or WiFi connection, the pavement can even be emptied remotely by third parties (government, external company or organization, resident traveling).

Figure 3 shows a cross section of the pavement 1 at the location of the control vessel 9. In Figure 3, the control vessel 9 is formed directly adjacent to the superstructure. As shown in figure 1, the control vessel 9 can also be formed at a distance from the superstructure 2. Figure 3 shows how the control vessel 9 has a level controller 14. The figure further shows an alternative overflow 18, in which the overflow 18 is directly connected to the substructure 3. Figure 3 shows an alternative form of a filter 29 which filters the water 24 in the superstructure 2. The figure further shows how a UV lamp 30 can be provided for cleaning water. More specifically, the UV lamp 30 will prevent algae formation, so that the hardened surface 4 does not turn green.

Figure 4 shows a stack 31 with modules 21. Since the modules 21 are formed with an open top, and because the modules 21 are preferably tapered with an opening at the top larger than a bottom, the modules 21 are stackable. Because the modules 21 are stackable, a stack 31 can be formed which is easy to transport. In operation, the open tops of the modules 21 are covered by the plate 23, described above, such that the modules 21 form a solid base for the superstructure 2. Preferably, several identical modules 21 are provided with an edge with hook elements for realizing the hook connection 27. Each module 21 is preferably formed so that water in the

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BE2017 / 5111 module 21 can be held. When the module 21 contains multiple compartments, the multiple compartments are preferably fluidly connected such that the compartments form communicating vessels.

Based on the description above, those skilled in the art will understand that the invention can be practiced in different ways and on different principles. In addition, the invention is not limited to the above-described embodiments. The above-described embodiments, as well as the figures, are merely illustrative and serve only to enhance the understanding of the invention. Therefore, the invention will not be limited to the embodiments described herein, but is defined in the claims.

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Claims (14)

Conclusions 1. Hardening with a superstructure and a sub-structure, the superstructure comprising a paved surface with openings and an upright edge enclosing the hardened surface, wherein a mainly waterproof layer is provided between the superstructure and the sub-structure such that the waterproof layer and the upright rim function as a receptacle for water, where a water pump is provided to pump water to and from the receptacle, such that the paved surface is below a water surface when the receptacle is full and above a water surface when the receptacle is empty wherein the substructure is formed with one or more cavities as a water buffer for the water pump and the substructure has infiltration openings. The pavement of claim 1, wherein the openings are formed to allow water to flow from above the paved surface to the waterproof layer. Pavement according to any of the preceding claims, wherein the substructure is formed by several modules, each module containing at least one of the one or more cavities. The pavement of claim 3, wherein the cavities of the plural modules are connected to each other via at least one tube extending between the modules so that the cavities form communicating vessels. Pavement according to claim 3 or 4, wherein the modules have a top edge that is shaped to hook into an upper edge of an adjacent module, so that the plural modules are connectable via their top edges. The pavement according to any one of claims 3-5, wherein the raised edge is provided on a peripheral edge of the plural modules. The pavement according to any one of claims 3-6, wherein each module is provided with the infiltration openings which allow water to infiltrate from the cavities into the substrate. Hardening according to any of claims 3-7, wherein the modules are covered by a plate, and wherein the waterproof layer is provided above the plate. The hardening according to any of claims 3-8, wherein the modules are stackable. A pavement according to any one of claims 3-9, wherein each module is provided with at least one support element and wherein the support element is compatible with the module in at least two different mutual positions so that a height of the module relative to the support element is adjustable. 2017/5111 BE2017 / 5111 A pavement according to any preceding claim, wherein a support structure is provided on the waterproof layer for supporting the paved surface. Pavement according to any of the preceding claims, wherein a level regulator is provided for controlling a level of the water surface by 5 controlling the water pump, whereby a level of the water surface is adjustable on the basis of an external input. Pavement according to any of the preceding claims, wherein a water reservoir is further provided. Hardening according to any of the preceding claims, wherein the 10 pavement is a terrace. BE2017 / 5111 BE2017 / 5111 BE2017 / 5111 BE2017 / 5111 --8-CN m 2017/5111 BE2017 / 5111 Pavement