![]() PAVEMENT ELEMENT, METHOD OF MANUFACTURING SUCH PAVING ELEMENT AND ROAD INCLUDING SUCH PAVING ELEMENT
专利摘要:
The invention relates to a paving element, comprising: - a drivable top surface, - a bottom surface disposed substantially parallel to the top surface at a distance therefrom, - a circumferential edge extending between the top surface and the bottom surface, at least a part of the circumferential edge extending extends from the top surface at a non-right angle to the top surface in the direction of the bottom surface over a first part of the height of the peripheral rim, and from the first part of the height over a second part of the height of the bottom peripheral a substantially right angle with the bottom surface extends to the bottom surface; and wherein the paving element is made of a geopolymer material. The invention also relates to a method for manufacturing such a paving element, as well as to a road comprising such a paving element. 公开号:BE1026820B1 申请号:E20195912 申请日:2019-12-16 公开日:2021-01-08 发明作者:Jan Dirk Staman 申请人:V D Bosch Beton B V; IPC主号:
专利说明:
PAVEMENT ELEMENT, METHOD OF MANUFACTURING ONE SUCH PAVEMENT AND ROAD INCLUDING SUCH The invention relates to a paving element, comprising: - a drivable top surface, - a bottom surface arranged substantially parallel to the top surface at a distance therefrom, - a peripheral edge extending between the top surface and the bottom surface, at least part of the peripheral edge extends from the top surface at a non-right angle to the top surface in the direction of the bottom surface over a first part of the height of the circumferential rim, and from the first part of the height a second part of the height of the circumferential rim extends at a substantially right angle from the bottom surface to the bottom surface; and wherein the paving element is made of a geopolymer material. An advantage of the use of a geopolymer material is that such a cementless concrete can be better for the environment and in particular a lower CO 2 emission for producing the geopolymer compared to cement-based concrete. Such a paving element can, for instance, be used on relatively narrow roads, where the paving element forms a transition to the verge. The part of the peripheral edge that extends at a non-right angle with the top surface in the direction of the bottom surface provides a gradual transition from the paving element to the verge. As a result, a driver of a vehicle who enters the verge with a wheel next to the paving element will be able to steer back relatively easily and return via this part of the peripheral edge to the top surface that can be driven on. The portion of height of the peripheral edge that extends at a non-right angle to the top surface in the direction of the bottom surface, in particular extends obliquely with respect to the drivable top surface, more particularly obliquely outwardly with respect to the top surface. driveable top surface. A straight height part is arranged adjacent to the oblique part, which straight height part extends substantially perpendicular to the bottom surface. The said part of the circumferential edge thus substantially shows a kink between the oblique part of the height and the straight part of the height. Said part of the circumferential edge can alternatively be referred to as a first part of the circumferential edge. In one embodiment of the paving element according to the invention, the geopolymer material comprises: - a binder and / or an aggregate; - a liquid; - optionally, an alkaline reagent; an alkaline activator with a molarity in the range of about 1.0 to about 20 M, preferably in the range of about 1.0 to about 10 M, more preferably in the range of about 2.0 to about 4, 0 M; and - an additive having a molarity in the range of about 0.001 to about 0.2 M selected from a sugar and derivatives thereof and / or an organic acid and salts thereof. The term "about" as used herein, and will also be used hereinafter, is intended to include minor deviations, particularly within 10% of said values. The density of the geopolymer material can be about 500 kg / m "to about 4500 kg / m". In another embodiment of the paving element according to the invention, the binder is an industrial powder and / or ash selected from the group of pulverized coal fly ash, blast furnace slag, granulated blast furnace slag, metakaolin, industrial slag, industrial combustion residues, cement, soil material, natural minerals, waste minerals, sludge , and combinations thereof. In yet another embodiment of the paving element of the invention, the aggregate is selected from fine aggregates, coarse aggregates, and combinations thereof. In yet another embodiment of the paving element according to the invention, the aggregate is selected from dolomite powder, limestone powder, natural mineral powder, industrial mineral powder, sand, gravel, steel, plastic, organic material, natural stone, crushed stone, recycled concrete granulate, waste minerals, industrial minerals and combinations thereof. In yet another embodiment of the paving element according to the invention, the alkaline activator is selected from an alkaline hydrogen carbonate activator, an alkaline silicate activator, an alkaline hydroxide activator and combinations thereof. In yet another embodiment of the paving element of the invention, the geopolymer material comprises less than about 5.0M alkaline reagent, and preferably alkaline reagent in the range of 0 to about 3.0M. The alkaline reagent can be soluble silicate. In yet another embodiment of the paving element according to the invention, at least one through hole is provided in the top surface, which through hole extends to the bottom surface to allow plant growth on the paving element. Such a through hole can be located anywhere in the top surface. For example, a said hole may be provided spaced from the peripheral edge of the paving element, the hole having an enclosed peripheral edge. Alternatively or additionally, said hole may be provided on the peripheral edge of the paving element, the hole having an incompletely enclosed peripheral edge. When such a paving element is arranged against a similar or identical paving element, two adjacent holes at the peripheral edges of the respective paving element can together form a hole with an enclosed peripheral edge. The hole can have any suitable cross-sectional shape, such as, for example, round, square, or polygonal. In yet another embodiment of the paving element according to the invention, the first part of the height comprises more than 5%, more than 10%, preferably more than 15%, even more preferably more than 20% of the total height of the peripheral edge. The first part of the height is thus not just any chamfer or chamfer that can be provided, for example, over the entire circumferential edge, but covers at least an above-mentioned percentage of the height of the circumferential edge. The first part of the height comprises, for example, a maximum of 50%, preferably a maximum of 45%, more preferably a maximum of 40% of the total height of the circumferential edge. In yet another embodiment of the paving element according to the invention, the first part of the height makes an angle with the top surface in the range of 25 ° - 60 °, more preferably about 45 °. In yet another embodiment of the paving element according to the invention, a second portion of the peripheral edge extends from the top surface to the bottom surface at a substantially right angle to the top surface and the bottom surface. An advantage of this paving element is that the paving element with this second part can abut another paving element and / or against the road. This second part of the circumferential edge can, if desired, be provided with a chamfer or chamfer, for instance with a chamfer or chamfer of a few mm. This second part can be arranged at least on a side of the paving element opposite to said part. The top surface and the bottom surface of the paving element according to the invention can, for example, have a substantially rectangular shape, in which case three contiguous peripheral parts of the peripheral edge can be designed in accordance with the second part of the peripheral edge and therefore extend from the top surface to the bottom surface. extending at a substantially right angle to the top surface and the bottom surface, and wherein a fourth circumferential portion extending between two adjacent corners of the top surface and / or bottom surface is configured conforming to said portion of the circumferential edge and thus first under a non-straight at an angle to the top surface and thereafter at a substantially right angle to the bottom surface. In this example, the circumferential edge is formed by four side surfaces, one side surface being designed in accordance with said part of the circumferential edge, and the other three side surfaces being designed in accordance with the second part of the circumferential edge. In other words, along one side of the substantially rectangular drivable top surface the side surface, viewed from the top surface in the direction of the bottom surface, is first oblique and then straight, and along the other three sides the side surface is substantially straight. Here, straight is defined as a right angle to the top surface and the bottom surface, and oblique as a non-right angle to the top surface and the bottom surface. In yet another embodiment of the paving element according to the invention, the paving element comprises coupling means for coupling adjacent paving elements to each other. The paving elements can thus be coupled to each other by these coupling means, whereby a more stable strip of paving elements is obtained and as a result of which tilting and subsidence of the paving elements are mutually prevented. In yet another embodiment of the paving element according to the invention, the drivable top surface is provided with parallel grooves. These parallel grooves generate vibrations and noise when a vehicle drives over these paving elements. This warns the driver and allows him to adjust his speed and make any necessary adjustments. Furthermore, the grooves ensure an improved drainage of rainwater. The invention also relates to a method for manufacturing a paving element according to any one of claims 1 to 12, comprising the following steps to be performed in any suitable sequence: a) providing a geopolymeric material in a substantially liquid state; b) providing a mold in the form of the paving element according to any one of claims 1 to 12; c) filling the mold with the liquid geopolymer material; d) allowing the geopolymer material to cure at least partially to obtain an at least partially cured paving element; e) releasing the partially cured paving element, f) optionally, allowing the paving element to cure further. The paving element according to the invention can be manufactured in a simple manner by means of such a method. The geopolymer material can be the material as defined in any one of claims 1 to 12. The geopolymeric material may be completely or incompletely cured during the release of the paving element, step f) being carried out after step e) if the paving element has not yet fully cured upon release. In step e) the geopolymer material of the paving element is cured at least such that the paving element retains its shape when it is detached from the mold and / or is transportable and / or stackable. Step d) can last, for example, a maximum of 24 hours, preferably a maximum of 18 hours, more preferably a maximum of 12 hours, even more preferably a maximum of 8 hours and even more preferably a maximum of 4 hours. Step d) can take place, for example, at a temperature of at least 40 ° C, preferably at least 50 ° C, more preferably at least 60 ° C, even more preferably at least 70 ° C, even more preferably at a temperature of about 80 ° C. C. The invention further relates to a road comprising a paved roadway and paving elements according to any one of claims 1-12 arranged along at least one side of the paved roadway or manufactured according to the method according to claim 13, wherein said part of the peripheral edge runs parallel to the road surface. paved side lane and is arranged on a side of the paving element remote from the paved roadway. The invention will be further elucidated with reference to figures, in which: Figure 1 shows a schematic perspective view of a road with paving elements according to the invention at the side; Figure 2 shows in perspective view an embodiment of the paving element according to the invention; and Figure 3 shows a top view of the paving element of Figure 2. Figure 1 shows a part of a road according to the invention. This road has a paved carriageway 1 on which vehicles V can drive. Along the side of the roadway 1 are paving elements 2. Here, a side of the paving element 2 lies flat against the roadway 1 and the side surface 3 remote from the roadway 1 is provided with a partial chamfer to which the verge B further adjoins. Due to this chamfer 3, the transition between the paving element 2 and the verge B is gradual. In figure 2 the paving element 2 is shown in more detail. This paving element 2 has a drivable top surface 4, which is substantially rectangular in shape. Side surfaces 3, 5, 6, 7 are present along the peripheral edge of this drivable surface 4. In the paving element 2, vegetation openings 8 are further provided, which openings extend from the drivable top surface 4 to the underside of the paving element 2. Via these openings 8, plants can take root in the underlying soil, giving the paving element an overgrown appearance. The side surface 3 is provided with a first, sloping height portion 11, which extends over a first part of the height of the circumferential edge from the top surface 4, and a second, straight elevation portion 12, which adjoins the sloping part and extends up to the bottom. of the paving element 2 and has a right angle to the underside. The side surface therefore shows more or less a kink. As can be seen from Figure 2, the paving element 2 in this exemplary embodiment furthermore has parallel grooves 13, which are arranged in the top surface 4 and extend between side surface 3 with the sloping height part 11 and straightening height part 12, and the opposite side surface 6. The grooves 13 run parallel to the side surfaces 4, 5. The grooves 13 can alternatively also extend in another direction, but preferably not parallel to the roadway 1. As further appears from Figure 2, the first portion 11 of the height of the peripheral edge is greater than a depth of the grooves 13. In other words, the grooves 13 have a bottom surface that is higher than the kink between the first height portion 11 and second height part 12. Furthermore, the side surfaces 5 and 7, which adjoin the side surface 3 with the sloping height part, are provided with coupling means 9 and 10. The coupling means 9 are complementary to the coupling means 10 and, due to the alternating arrangement 1s, the coupling surface 5 is thus complementary to the coupling surface. interface 7. The paving element 2 is manufactured according to the invention from a geopolymer material, also called a cementless concrete. The geopolymeric material may include the claimed ingredients. It is noted that the invention is not limited to the embodiments shown, but also extends to variants within the scope of the appended claims.
权利要求:
Claims (14) [1] 1. Paving element, comprising: - a drivable top surface, - a bottom surface arranged at a distance from it substantially parallel to the top surface, - a peripheral edge extending between the top surface and the bottom surface, at least part of the peripheral edge extending from the top surface below. a non-right angle to the top surface in the direction of the bottom surface extends for a first part of the height of the circumferential edge, and extends from the first part of the height over a second part of the height of the circumferential edge under a substantially straight line angle with the bottom surface extends to the bottom surface; and wherein the paving element is made of a geopolymer material. [2] Paving element according to claim 1, wherein the geopolymer material comprises: - a binder and / or an aggregate; - a liquid; - optionally, an alkaline reagent; an alkaline activator with a molarity in the range of about 1.0 to about 20 M, preferably in the range of about 1.0 to about 10 M, more preferably in the range of about 2.0 to about 4, 0 M; and - an additive having a molarity in the range of about 0.001 to about 0.2 M selected from a sugar and derivatives thereof and / or an organic acid and salts thereof. [3] The paving element of claim 2, wherein the density of the geopolymer material is from about 500 kg / m2 to about 4500 kg / m2). [4] The paving element according to claim 2 or 3, wherein the binder is an industrial powder and / or ash selected from the group of pulverized coal fly ash, blast furnace slag, granulated blast furnace slag, metakaolin, industrial slag, industrial combustion residues, cement, soil material, natural minerals, waste minerals, sludge. , and combinations thereof. [5] A paving element according to any one of the preceding claims 2 - 4, wherein the aggregate is selected from fine aggregates, coarse aggregates, and combinations thereof. [6] Paving element according to any one of the preceding claims 2 - 5, wherein the aggregate is selected from dolomite powder, limestone powder, natural mineral powder, industrial mineral powder, sand, gravel, steel, plastic, organic material, natural stone, crushed stone, recycled concrete granulate, waste minerals, industrial minerals and combinations thereof. [7] A paving element according to any one of the preceding claims 2-6, wherein the alkaline activator is selected from an alkaline hydrogen carbonate activator, an alkaline silicate activator, an alkaline hydroxide activator and combinations thereof. [8] The paving element of any one of the preceding claims 2-7, wherein the geopolymer material comprises less than about 5.0M alkaline reagent, and preferably alkaline reagent in the range of 0 to about 3.0M. [9] A paving element according to any one of the preceding claims 2-8, wherein the alkaline reagent is soluble silicate. [10] A paving element according to any one of the preceding claims, wherein at least one through hole is provided in the top surface, which through hole extends to the bottom surface to allow plant growth on the paving element. [11] Paving element according to any one of the preceding claims, wherein the first part of the height comprises more than 5%, more than 10%, preferably more than 15%, even more preferably more than 20% of the total height of the peripheral edge. [12] A paving element according to any one of the preceding claims, wherein a second portion of the circumferential edge extends from the top surface to the bottom surface at a substantially right angle to the top surface and the bottom surface. [13] A method for manufacturing a paving element according to any one of claims 1 to 12, comprising the following steps to be performed in any suitable order: a) providing a geopolymeric material in a substantially liquid state; b) providing a mold in the form of the paving element according to any one of claims 1 to 12; c) filling the mold with the liquid geopolymer material; d) allowing the geopolymer material to cure at least partially to obtain an at least partially cured paving element; e) releasing the partially cured paving element, f) optionally, allowing the paving element to cure further. [14] A road comprising a paved roadway and paving elements according to any one of claims 1 - 12 arranged along at least one side of the paved roadway or manufactured according to the method of claim 13, wherein said part of the peripheral edge runs parallel to the paved side strip and is arranged on a side of the paving element remote from the paved roadway.
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同族专利:
公开号 | 公开日 BE1026820A1|2020-06-25| NL2022239B1|2020-07-03| DE102019134998A1|2020-06-18|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 NL1023270C2|2003-04-25|2004-03-25|Den Bosch Beton B V Van|Paving element for sides of roads, has slanting lateral side surface to provide smooth transition between road and verge| US8038789B2|2008-09-09|2011-10-18|Ceramatec, Inc.|Pervious concrete comprising a geopolymerized pozzolanic ash binder| WO2015076675A1|2013-11-22|2015-05-28|Pqa B.V.|Geopolymer materials comprising alkaline activator and an additive selected from sugar and/or organic acids| WO2017137168A1|2016-02-12|2017-08-17|Betonwerk Kwade Gmbh & Co. Kommanditgesellschaft|Moulded concrete block|
法律状态:
2021-03-19| FG| Patent granted|Effective date: 20210108 |
优先权:
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申请号 | 申请日 | 专利标题 NL2022239A|NL2022239B1|2018-12-18|2018-12-18|PAVING ELEMENT, METHOD FOR MANUFACTURING SUCH PAVING ELEMENT AND ROAD CONTAINING SUCH PAVING ELEMENT| 相关专利
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