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    • 专利摘要:
    The present invention relates to a method for manufacturing a concrete column whose length dimension is considerably larger than the width dimension and the height dimension. The method comprises at least the following steps: - providing a formwork; - installing reinforcement in the formwork; - pouring a concrete composition into the formwork; - hardening of the concrete composition in the formwork into a concrete column; - removing the concrete column from the formwork. The concrete composition includes calcium chloride and a hydroxide base. Removal of the concrete column from the formwork is carried out when the concrete column has a compressive strength of 20 MPa to 25 MPa.
    公开号:BE1022928B1
    申请号:E2015/5404
    申请日:2015-06-29
    公开日:2016-10-19
    发明作者:Luc VULSTEKE
    申请人:Houtland Beton Nv；
    IPC主号:
    专利说明:

    METHOD FOR MANUFACTURING A CONCRETE COLUMN TECHNICAL DOMAIN
    The invention relates to a method for manufacturing a concrete column.
    STATE OF THE ART NL 2 007 738 describes a method for producing a component of concrete in a formwork, preferably a thick-walled mass construction in the outside air, wherein a pipe is placed in the formwork that is poured into the form-free concrete, so that said pipe is embedded in the concrete, preferably at least 30 cm below the concrete surface, and whereby a heating or cooling liquid or gaseous medium is flowing through that conduit so that the concrete is heated or cooled from the inside and controlled by the medium while the concrete is up to its final strength hardens. This temperature control is aimed, among other things, at avoiding a hardening that takes too much time because the concrete is too cold. NL 2 007 738 has the problem that the collapse of the pipe causes additional material costs and that the heating or cooling of the medium entails a non-negligible cost. In addition, the size of the pipes must always be adjusted to the size of a concrete structure to be produced. This does not benefit the flexibility in the production of a concrete component. NL 1 027 239 describes a method for preparing concrete mortar for corrosion-resistant iron-reinforced concrete in which the iron reinforcement is protected against corrosion by the addition of an oxidizing agent and a base. This concrete mortar protects the iron reinforcement against corrosion after an iron reinforcement has been embedded and the concrete mortar has hardened. In addition, NL 1 027 239 describes a method for making corrosion-resistant iron-reinforced concrete using the concrete mortar. NL 1 027 239 has the problem that a structure of iron-reinforced concrete only reaches the required strength for loading the structure after a long time. This entails that a mold for shaping such a construction will be occupied for a long time. In addition, it is necessary to plan the manufacture of such structures well in advance in construction projects. WO 2013/049401 describes a cement composition comprising calcium aluminate cement and a composition comprising carbonate. In addition, WO 2013/049401 mentions concrete beams and columns made from the cement composition. WO 2013/049401 has the problem that in order to obtain a concrete beam or column of a certain strength, the concrete composition must be cured in an environment with controlled environmental factors, such as, for example, controlled temperature and humidity. Due to varying weather conditions, checking environmental factors can cause difficulties or can be expensive.
    It is an object of the present invention to find a solution to at least some of the aforementioned problems.
    SUMMARY OF THE INVENTION
    The invention relates to a method for manufacturing a concrete column (5) whose length dimension (16) is considerably larger than the width dimension (14) and the height dimension (15), which method comprises at least the following steps: providing a formwork ( 30, 38); applying a reinforcement (7, 8, 9) in the formwork (30, 38); pouring a concrete composition into the formwork (30, 38); curing the concrete composition in the formwork (30, 38) into a concrete column (5); removing the concrete column (5) from the formwork (30, 38); wherein the concrete composition comprises calcium chloride and a hydroxide base and wherein removal of the concrete column (5) from the formwork (30, 38) is carried out when the concrete column (5) has a compressive strength of 20 MPa to 25 MPa.
    By pouring the concrete composition comprising calcium chloride and a hydroxide base into the formwork (30, 38), it is possible to obtain concrete after a short time of curing that has sufficient compressive strength to be used as a part of a building that may or may not be loaded , and which concrete will retain its compressive strength in the long term.
    According to an embodiment of the present invention, the method further comprises the step of preparing a concrete composition, wherein 5 to 9 parts by weight of water, 13 to 21 parts by weight of cement, 22 to 34 parts by weight of fine aggregate material, 35 to 53 parts by weight of coarse aggregate material, 0.25 up to 0.55 parts by weight of calcium chloride and 0.25 to 0.55 parts by weight of hydroxide base are combined with each other.
    The use of such a concrete composition in the method according to the present invention gives rise to a concrete that already after an exceptionally short time of hardening has sufficient compressive strength to be used as a part of a building that may or may not be loaded, and which concrete is used for a long time. optimally maintain its compressive strength in the long term.
    According to an embodiment of the present invention, the formwork (30, 38) is an adjustable formwork (38), which adjustable formwork (38) comprises at least one formwork floor and formwork side walls, which formwork floor and formwork side walls are modularly constructed and movable floor modules (36), respectively. and movable wall modules (35), and the method further comprises the step of adjusting the adjustable formwork (38).
    The provision of an adjustable formwork (38) and the adjustment of one or more movable floor modules (36) and / or wall modules (35) of this formwork (38) provides great flexibility in length and width of the formwork (38). This formwork (38) can therefore be adjusted to a wide variety of definable lengths and widths. This benefits the flexibility and consequently the progress of the production process in the manufacture of a concrete column (5).
    According to an embodiment of the present invention, the method further comprises the step of applying a wider base plate (6) to the reinforcement (7, 8, 9) of the concrete column (5), and the step of providing external openings ( 13) in the vicinity of the circumference of the foot plate (6).
    The provision of a base plate (6), with external openings (13), is a cost and time efficient way to attach a concrete column (5) to another structure (1) if desired. This contributes to the rapid deployability of a concrete column (5) comprising concrete that already has sufficient compressive strength after a short time of hardening to be used as a part of a building, whether or not loaded, and which concrete will have its compressive strength in the long term. preserve.
    DESCRIPTION OF THE FIGURES
    Figure 1 is a possible embodiment of a concrete column (5) according to embodiments of the present invention.
    Figure 2 is a possible embodiment of a mold (30) adapted to manufacture a concrete column (5), according to embodiments of the present invention.
    Figure 3 is a possible embodiment of a concrete column (5) with a base plate (6) according to embodiments of the present invention.
    Figure 4 is a detailed view of a possible embodiment of the attachment between concrete column (5) with base plate (6) and a structure (1), according to embodiments of the present invention.
    Figure 5 is a detail view of a possible embodiment of the attachment between concrete column (5) with base plate (6) and a structure (1), according to embodiments of the present invention, showing the internal components of the concrete column (5).
    Figure 6 is a possible embodiment of a concrete column (5) with base plate (6), according to embodiments of the present invention.
    Figure 7 is a detailed view of a possible embodiment of the attachment between concrete column (5) with base plate (6) and a structure (1), according to embodiments of the present invention, showing the internal components of the concrete column (5), and wherein internal rods (11) anchored in a structure (1) are placed in the tubes (12) so as to obtain a solidity whole between concrete column (5) and structure (1).
    Figure 8 is a possible embodiment of a concrete column (5) according to embodiments of the present invention.
    Figure 9 is a possible embodiment of an adjustable formwork (38) provided with console modules (37), according to embodiments of the present invention.
    Figure 10 is a detail view of a possible embodiment of a detachable corner slat (39) according to embodiments of the present invention.
    Figure 11 is a detail view of a possible embodiment of a releasable beam-shaped element (41) according to embodiments of the present invention.
    DETAILED DESCRIPTION
    Unless defined otherwise, all terms used in the description of the invention, including technical and scientific terms, have the meaning as generally understood by those skilled in the art of the invention. For a better assessment of the description of the invention, certain terms are explicitly explained.
    The terms "includes," "includes," and "includes" are inclusive or open terms indicating the presence of what follows, and which do not exclude or prevent the presence of other components, features, elements, members, steps, known from or described in the prior art.
    The invention relates to a method for manufacturing a concrete column (5) whose length dimension (16) is considerably larger than the width dimension (14) and the height dimension (15), which method comprises at least the following steps: providing a formwork ( 30, 38); applying a reinforcement (7, 8, 9) in the formwork (30, 38); pouring a concrete composition into the formwork (30, 38); curing the concrete composition in the formwork (30, 38) into a concrete column (5); removing the concrete column (5) from the formwork (30, 38); wherein the concrete composition comprises calcium chloride and a hydroxide base and wherein removal of the concrete column (5) from the formwork (30, 38) is carried out when the concrete column (5) has a compressive strength of 20 MPa to 25 MPa.
    The term "concrete column" (5) in this text refers to a column (5) or pillar made of concrete. In a building or building structure, concrete columns (5) usually act as upright load-bearing structures that carry loads mainly through axial compression. The cross-section of concrete columns (5) can take many polygonal forms, such as, for example, a square, a rectangle, a hexagon, etc. The concrete column (5) according to the present invention can be obtained by curing any concrete composition from the prior art technology that is suitable for obtaining concrete with a sufficient compressive strength to be used in a building or building construction. The concrete columns (5) according to the present invention preferably have a sufficient compressive strength, sufficient resistance to moisture, frost and salt, a smooth aspect, and a uniform color.
    A "formwork" (30, 38), also referred to as a mold or counterform, is a preformed device that can comprise a substance. The formwork (30, 38) holds the concrete composition in place during hardening of the concrete composition into a concrete column (5). The dimensions (31, 32, 33) of the formwork (30) are therefore preferably adjusted to the desired dimensions (14, 15, 16) of the concrete column (5). The formwork (30, 38) can be made from any material or from a combination of any materials known in the art, such as, for example, wood, plastic, and metal, for example steel. At the places where the formwork (30, 38) holds the concrete composition in place during its curing into concrete, an additional coating or layer can be provided that allows the concrete column (5), once cured, to be easier removed from the formwork (30, 38).
    Concrete can very well withstand pressure loads, but for absorbing tensile loads, the concrete should best be provided with a reinforcement (7, 8, 9). The term "reinforcement" is a term known in the art and refers to a reinforcing element that is provided in concrete to reinforce it and to make it more resistant to, for example, compressive or tensile forces to which the concrete is subjected. When a reinforcement (7, 8, 9) is present in the concrete, "reinforced concrete" is typically used. The reinforcement (7, 8, 9) according to the present invention can comprise any configuration known in the state of the art and can for instance be provided in the form of rods, nets, cables, gratings, etc. and can furthermore comprise any material known in the prior art, such as metal, e.g. steel, fiberglass, plastic, etc. The cheapest form of reinforcement (7, 8, 9) is formed by iron-based reinforcement. The reinforcement (7, 8, 9) preferably comprises steel and / or iron.
    The provision of a reinforcement (7, 8, 9) in the formwork (30, 38) can take place in any suitable manner as is known from the prior art. For example, the reinforcement (7, 8, 9) can only be applied manually in the formwork (30, 38). A reinforcement (7, 8, 9) can be considerably heavy because of the materials chosen, such as, for example, iron, and / or large dimensions. To that end, it is advantageous to arrange a reinforcement (7, 8, 9) in a formwork by means of a mechanical aid, such as, for example, a rolling bridge.
    A concrete composition comprises, as components, generally water, cement, and one or more aggregate materials. In addition, so-called auxiliaries can be added to a concrete composition, such as, for example, anti-foaming agents, water-repellent agents, dispersants, binding accelerators, binding retardants, plasticizers, super-plasticizers, water reducers, binders, freezing point-lowering agents, adhesion-improving agents, air trapping agents, and dyes. Upon contact, water reacts with cement, also called hydration, so that the components of the concrete composition are connected to concrete. Surcharge materials can be subdivided as fine aggregate material or as coarse aggregate material. Fine aggregate material is aggregate material in which the grain size is less than 4 mm. Coarse aggregate material is aggregate material in which the grain size is greater than or equal to 4 mm. Fine aggregate material can be found in nature such as river sand, mountain sand or sea sand, or can be obtained artificially, for example by breaking rocks or stones. Coarse aggregate material, in turn, can be found in nature, for example, as river, silage or sea gravel, or can be produced by breaking stones or rocks. The properties of the aggregate materials, such as the ratio between fine and coarse aggregate material and the associated grain distribution, are of great importance for a concrete composition. After all, surplus materials form the bulk of a concrete composition and absorb the most compressive forces of a concrete.
    Pouring a concrete composition into a formwork (30, 38) can be carried out in any suitable manner as known in the art. If desired or required, the concrete composition can be applied in one or more steps. Optionally, a device for leveling and compacting the cast concrete, such as for example a vibrating needle or a vibrating beam, can be used to distribute the concrete nicely in the formwork (30, 38) and to push it in such a way that a nice and smooth concrete can be obtained.
    The curing of the concrete composition in the formwork (30, 38) into a concrete column (5) is generally influenced by environmental factors such as ambient temperature and ambient humidity. The present invention aims, inter alia, to minimize dependence on the ambient temperature. This is pursued by the presence of calcium chloride in the concrete composition. Calcium chloride acts as a binding accelerator in the concrete mixture, so that a concrete with a certain compressive strength can be obtained more quickly. Calcium chloride provides a faster bond because calcium chloride changes the rate of hydration. The use of calcium chloride is a cheaper and easier alternative to achieving a faster binding than an increase and control of the ambient temperature. The amount of added calcium chloride can also be adjusted to the weather conditions. For example, to obtain a certain compressive strength, more calcium chloride will have to be added within a certain time when it is colder than when it is warmer. The use of calcium chloride according to the present invention thus makes it possible to continuously obtain concrete during the year with desired compressive strength, independent of the weather conditions.
    By pouring the concrete composition comprising calcium chloride and a hydroxide base into the formwork (30, 38), it is possible to obtain concrete after a short time of curing that has sufficient compressive strength to be used as a part of a building that may or may not be loaded , and which concrete will retain its compressive strength in the long term. The rapid hardening of the concrete is due to the concrete composition and mainly to the presence of calcium chloride in the concrete composition. The removal of the concrete column (5) from the formwork is carried out in the process when the concrete column (5) has a compressive strength of 20 MPa to 25 MPa. Provided the correct dimensioning of the body in which the concrete is formed, a concrete with a compressive strength of 20 MPa to 25 MPa is already strong enough to withstand the load of standard structures in a building. This means that a concrete obtained from the concrete composition according to the present invention can already be used in the short term as a part of a building that may or may not be loaded. To ensure that the concrete can retain its compressive strength in the long term, the reinforcement (7, 8, 9) of the concrete, which reinforcement (7, 8, 9) preferably comprises steel and / or iron, is protected against acid corrosion due to the presence of a hydroxide base in the concrete composition. Acid corrosion occurs when a metal is exposed to an acid-containing electrolyte. The chloride ions of the calcium chloride can cause acid corrosion. The relative amount in which the hydroxide base is included in the concrete composition of the present invention is tuned to avoid acid corrosion. This means that a concrete obtained from the concrete composition according to the present invention can already be used in the short term as a part of a building that is loaded or not, and that the concrete will retain its compressive strength in the long term. This is advantageous both for the progress of the construction of a building by means of concrete obtained from a concrete composition according to the invention, and for the stability of such a building in the long term.
    According to an embodiment of the present invention, the method further comprises the step of preparing a concrete composition, wherein 5 to 9 parts by weight of water, 13 to 21 parts by weight of cement, 22 to 34 parts by weight of fine aggregate material, 35 to 53 parts by weight of coarse aggregate material, 0.25 up to 0.55 parts by weight of calcium chloride and 0.25 to 0.55 parts by weight of hydroxide base are combined with each other.
    The use of such a concrete composition in the method according to the present invention gives rise to a concrete that already after an exceptionally short time of hardening has sufficient compressive strength to be used as a part of a building that may or may not be loaded, and which concrete is used for a long time. optimally maintain its compressive strength in the long term. With the concrete composition according to this embodiment a concrete column (5) with a compressive strength of 20 MPa to 25 MPa is already obtained after a maximum of 8 hours of curing. Specific quantities of parts of the concrete composition, which are within the above intervals expressed in parts by weight, can be selected as a function of the ambient temperature and / or desired structural properties of concrete columns to be obtained (5). Thus, the use of the concrete composition according to this embodiment in the method according to the present invention provides a flexible, cost-efficient and time-efficient manner for manufacturing concrete columns (5).
    According to an embodiment of the present invention, during the curing of the concrete composition in the formwork (30, 38) to a concrete column (5), the temperature of the environment in which the formwork (30, 38) is placed is kept above 0 ° C.
    Although the concrete composition according to the present invention is aimed at obtaining a rapid curing of concrete at a variety of ambient temperatures, ensuring a specific ambient temperature or ambient temperature is conducive to curing. The ambient temperature is preferably kept above 5 ° C, and more preferably above 10 ° C. The stated ambient temperatures can be obtained in cheap and sustainable ways. For example, a single application of insulation in the area where the formwork (30, 38) is placed can be sufficient to guarantee the specified temperatures in the long term.
    According to an embodiment of the present invention, the method further comprises the step of manufacturing a formwork (30, 38).
    Manufacturing a formwork yourself provides great flexibility in dimensioning concrete columns to be produced (5). A time saving can also be obtained since one is not dependent on suppliers.
    According to an embodiment of the present invention, the method further comprises the step of manufacturing a reinforcement (7, 8, 9), wherein main reinforcements (7) are connected in parallel to standing reinforcement brackets (8), and horizontal reinforcement brackets (9) are connected transversely with main reinforcements (7) and standing reinforcement brackets (8).
    Main reinforcements (7) are elongated reinforcement bars that can be positioned in the longitudinal direction of the formwork (30, 38). The longitudinal direction of the formwork (30, 38) is the direction of the formwork (30, 38) which is located according to the largest dimension or dimension of the formwork (30, 38). Reinforcement brackets (8, 9) are curved in a hoop shape and closed reinforcing bars with flattened corners. The self-manufacture of a reinforcement (7, 8, 9) provides great flexibility in dimensioning and structural support for concrete columns to be produced (5). A time saving can also be obtained since one is not dependent on suppliers. Moreover, a reinforcement (7, 8, 9) with the aforementioned connections between main reinforcements (7) and reinforcement brackets (8, 9) provides optimum support for a concrete column (5) obtained via the method according to the present invention. Such a reinforcement (7, 8, 9) can also be referred to as a reinforcement basket.
    According to an embodiment of the present invention, the formwork (30, 38) is an adjustable formwork (38), which adjustable formwork (38) comprises at least one formwork floor and formwork side walls, which formwork floor and formwork side walls are modularly constructed and movable floor modules (36), respectively. and movable wall modules (35), and the method further comprises the step of adjusting the adjustable formwork (38).
    With "adjustable" formwork (38) is meant that the formwork is adjustable (38). Different parts of the adjustable formwork (38), discussed below, can be moved or adjusted. The formwork floor of the adjustable formwork (38) is usually oriented parallel to a support, such as for example a floor, and can preferably be placed on such a support. The formwork side walls of an adjustable formwork (38) are form-fittingly positioned with respect to the formwork floor, and the formwork side walls are oriented at a certain angle relative to the formwork floor. The formwork side walls are preferably oriented transversely to the formwork floor. The term "form-fitting" refers to a concatenation of various parts, such as, for example, formwork floor and side walls, wherein the leaking of a substance, such as, for example, of concrete, does not take place or cannot take place at the location of the connection. The wall modules (35) and floor modules (36) can comprise any material known in the state of the art such as, inter alia, wood, plastic, metal, steel or any combination of these materials. Preferably, the wall modules (35) and floor modules (36) comprise steel, and more preferably, sheet steel. The floor modules (36) and wall modules (35) can be seen as segments of the formwork floor and the formwork side walls, respectively. The adjustment of the adjustable formwork (38) comprises the adjustment of movable floor modules (36) and / or wall modules (35). The adjustment of movable floor modules (36) and / or wall modules (35) involves moving or removing modules (35, 36). This is preferably carried out in such a way that adjacent wall modules (35) mutually, adjacent floor modules (36) mutually, and floor modules (36) with respect to wall modules (35) are form-fitting relative to each other. The displacement can be carried out manually, or can be carried out by means of any drive technique or drive as known in the prior art, such as mechanical, electrical, hydraulic or pneumatic drive techniques, preferably hydraulic drive techniques. The provision of an adjustable formwork (38) and the adjustment of one or more movable floor modules (36) and / or wall modules (35) of this formwork (38) provides great flexibility in length and width of the formwork (38). This formwork (38) can therefore be adjusted to a wide variety of definable lengths and widths. This benefits the flexibility and consequently the progress of the production process in the manufacture of a concrete column (5).
    According to an embodiment of the present invention, the step of adjusting the adjustable formwork (38) further comprises exchanging one or more movable floor modules (36) and / or wall modules (35) with console modules (37), and / or further moving one or more console modules (37), which console modules (37) are adapted to provide a console (29) on a concrete column (5).
    A console (29) of a concrete column (5) is a protruding or protruding structural part on a concrete column (5), which serves as a support for a beam or a plate. A console is usually designed according to the shape of the moment line. A console module (37) is a mold formed to shape a curing material, such as concrete, into a console (29). A console module (37) may comprise any material known in the art such as, inter alia, wood, plastic, metal, steel or any combination of these materials. Preferably, a console module (37) comprises steel, and more preferably, sheet steel. The console modules (37) are arranged to be form-fitting with respect to adjacent floor modules (36) and / or wall modules (35) in an adjustable formwork (38). Exchanging can mean that one or more floor modules (36) and / or wall modules (35) that are form-fittingly placed in an adjustable formwork (38) are removed and that the vacant place is occupied by the form-fitting placement of one or more console modules (37). ), or may mean that one or more console modules (37) forming part of the form-fitting assembly of an adjustable formwork (38) are removed and that one or more floor modules (36) and / or wall modules (35) are form-fitting instead. can be placed, or can mean a combination of the latter two options. Moving one or more console modules (37) means that console modules (37) that are part of the form-fitting assembly of an adjustable formwork (38) are moved to match the formwork (38) to the dimensions of a concrete column to be manufactured (5). The use of the adjustable formwork (38) comprising console modules (37) in the method of the present invention has the advantage that consoles (29) can be flexibly provided with a concrete column (5) on three sides by means of the console modules (37).
    According to an embodiment of the present invention, the step of adjusting the adjustable formwork (38) is used both before the step of providing a concrete composition in the formwork (38) and after the step of curing the concrete composition to form a concrete column (5).
    The step of adjusting the adjustable shuttering (38) for the step of providing a concrete composition in the adjustable shuttering (38), or the first adjusting, ensures that the shape of the adjustable shuttering (38) can be adjusted to a concrete column (5) to be manufactured. The adjustment of the adjustable formwork (38) after the step of curing the concrete composition to a concrete column (5), or the second adjustment, is performed to simplify the removal of the concrete column (5) from the formwork (38). For this purpose, wall modules (35), floor modules (36), and / or, where present, console modules (37) can be moved away from the concrete column (5).
    According to an embodiment of the present invention, the method further comprises the step of mounting releasable corner slats (39) on the formwork (30, 38), said releasable corner slats (39) being arranged around beveled corners (28) of a concrete column (5) ) to obtain.
    The releasable corner slats (39) are preferably placed at the level of portions of the formwork (30, 38) that are in the vicinity of the corners of a concrete column (5) to be manufactured. In this way, a concrete column with beveled corners (28) can be produced, which may be desirable because beveled corners (28) from an aesthetic point of view are preferable to non-beveled corners. The dimension of a corner slat (39) in the longitudinal direction of the formwork (30, 38) is preferably larger than the other dimensions of the corner slat (39). The dimension of a corner slat (39) is preferably adapted to the dimensions of formwork (30, 38) and, where applicable, adapted to the dimensions of floor modules (36), wall modules (35), and / or console modules (37), to which the detachable corner slat (39) can be attached. A corner slat (39) comprises at least two legs, a first leg and a second leg. The first and the second leg can have any desired shape. Preferably, the first leg and the second leg of a corner slat (39) are straight. A corner slat (39) can comprise any material known in the prior art such as, inter alia, wood, plastic, metal, steel or any combination of these materials. Preferably the corner slat (39) comprises steel, and more preferably sheet steel. The releasable arrangement of the corner slats (39) can for instance take place by means of magnets (40). According to another embodiment, the corner slats (39) are not releasably provided and are permanently connected to a formwork (30, 38) and where applicable to floor modules (36), wall modules (35) and / or console modules (37). The non-detachable arrangement of corner battens (37) can for instance be carried out by welding.
    According to an embodiment of the present invention, the method further comprises the step of applying releasable beam-like elements (41) to the formwork (30, 38), which releasable beam-like elements (41) are adapted to obtain rectangular recesses (34) in a concrete column (5).
    The provision of rectangular recesses (34) makes it possible to slide in wall panels if desired. The dimension of a releasable beam-like element (41) in the longitudinal direction of the formwork (30, 38) is preferably larger than the other dimensions of the releasable beam-like element (41). Preferably, the dimension of a releasable beam-shaped element (41) is adapted to the dimensions of formwork (30, 38) and, where applicable, adapted to the dimensions of floor modules (36), wall modules (35), and / or console modules (37) to which the releasable beam-shaped element (41) can be attached. A releasable beam-shaped element (41) can comprise any material known in the prior art such as, inter alia, wood, plastic, metal, steel or any combination of these materials. Preferably, releasable beam-shaped element (41) comprises a plastic, for example PVC. The releasable arrangement of the releasable beam-shaped element (41) can for instance take place by means of magnets (40). According to another embodiment, the beam-shaped elements (41) are not releasably provided and are permanently connected to a formwork (30, 38) and where applicable to floor modules (36), wall modules (35) and / or console modules (37). The non-releasable arrangement of beam-shaped elements (41) can be carried out, for example, by gluing the beam-shaped elements (41).
    According to an embodiment of the present invention, the method further comprises the step of applying a wider base plate (6) to the reinforcement (7, 8, 9) of the concrete column (5), and further the step of providing external openings (13) in the vicinity of the circumference of the foot plate (6).
    A foot plate (6) is defined herein as a device which is provided on a side, preferably an upper surface (17) and / or lower surface (18) with a concrete column (5), and which foot plate (6) is arranged to quickly connect concrete column (5) to another structure (1), whereby the base plate (6) can moreover be used to quickly align the positioning of the concrete column (5). Such a base plate (6) is low in cost price and moreover simple to install on the reinforcement (7, 8, 9) of the concrete column (5). The provision of a base plate (6), with external openings (13), is therefore a cost and time efficient way of attaching a concrete column (5) to another structure (1) if desired. This contributes to the rapid deployability of a concrete column (5) comprising concrete that already has sufficient compressive strength after a short time of hardening to be used as a part of a building, whether or not loaded, and which concrete will have its compressive strength in the long term. preserve. The base plate (6) can be connected to the reinforcement (7, 8, 9) by welding. It should be emphasized that the foot (6) can also be connected to the reinforcement (7, 8, 9) of the concrete column (5) by all possible techniques or systems known to those of ordinary skill in the art. A foot plate (6) appears as a plate. Preferably, the length dimension (21) of the foot plate (6) is limited with respect to the width dimension (19) and height dimension (20) of the foot plate (6). The foot plate (6) preferably consists of a material that can withstand large forces. The foot plate (6) can consist of, among other things, plastic or metal. The base plate (6) preferably consists of metal, and more preferably of iron. Iron is, after all, a cheap metal. The provision of external openings in the base plate (6) can be achieved, for example, by drilling into the base plate (6). Through these openings, for example, a screw and nut system can be used to connect the base plate (6) and consequently a concrete column (5) to a structure (1). In addition, the base plate (6) can be provided with any analog means for fixing as known from the prior art.
    According to an embodiment of the present invention, the method further comprises the step of arranging at least one cavity extending along the length dimension (16) of the concrete column (5), and of arranging a sleeve (12) in each cavity extending longitudinally from the concrete column (5), and from the provision of internal openings (22) in the base plate (6) in line with the positions of said sleeves (12) in the concrete column (5).
    The provision of at least one cavity extending in the longitudinal direction of the concrete column (5) can be effected, for example, by drilling a cavity in the concrete column (5), which may or may not be cured. The provision of a sleeve (12) in each cavity extending in the longitudinal direction of the concrete column (5) can be effected, for example, by striking these sleeves (12) in the cavities, for example with a hammer. In another embodiment, the tubes (12) are already provided in the formwork (30, 38) before or during the pouring of the concrete composition. As a result, the provision of cavities in the concrete column (5) and the installation of sleeves (12) in these cavities are obtained in one step. It must be ensured here that the flow of the concrete composition into the tubes (12) is avoided. This can be achieved when the tubes (12) run over the entire longitudinal direction of the formwork (30, 38) and over the entire longitudinal direction of the concrete column (5). The internal openings (22) in the base plate (6) can be provided, for example, by drilling openings (22) in the base plate (6). The combination of internal openings (22) and tubes (12) provides an additional way to securely connect a concrete column (5) to another structure (1).
    According to an embodiment of the present invention, the method further comprises the step of providing rods (3, 11) to a structure (1) to which the concrete column (5) is to be connected.
    Attaching rods (3, 11) to a structure (1) equips the latter with means for entering into a connection with a concrete column (5) with base plate (6). A foundation solid is an example of a structure (1). In one embodiment, the concrete column (5) has a base plate (6) with only external openings (13) and a structure (1) is provided with external rods (3). In another embodiment, the concrete column (5) has a base plate (6) with both internal openings (22) and external openings (13) and a structure (1) is provided with both external bars (3) and internal bars (11).
    According to an embodiment of the present invention, the method further comprises the step of connecting the concrete column (5) to bars (3, 11) provided in a structure (1).
    The joining can take place quickly and efficiently by the provisions made at the height of the concrete column (5) and at the level of the structure (1). In one embodiment, a concrete column (5) with a base plate (6) with only external openings (13) and a structure (1) provided with external rods (3) are connected to each other. In another embodiment, a concrete column (5) with a base plate (6) with both internal openings (22) and external openings (13) and a structure (1) is provided with both external bars (3) and internal bars (11) with interconnected. External bars (3) are connected to external openings (13). Internal bars (11) are connected to the tubes (12) which are in line with the internal openings (22), for which concrete is poured into the tubes (12).
    In the following, the invention is described with reference to some examples. EXAMPLES: EXAMPLE 1:
    Example 1 relates to a method for manufacturing a concrete column (5), a possible embodiment of which is shown in Figure 1. In a first step, a formwork (30) is provided (Figure 2). A reinforcement basket is then placed in the formwork (30) by means of a rolling bridge. This reinforcement basket consists of a reinforcement (7, 8, 9) with main reinforcements (7) connected in parallel with standing reinforcement brackets (8), and horizontal reinforcement brackets (9) connected transversely to main reinforcements (7) and standing reinforcement brackets (8). A concrete composition with a specific composition is then poured into the formwork (30) according to the table below.
    Subsequently, the concrete composition is hardened in the formwork (30) into a concrete column (5). Curing is preferably done at night. Due to the specific concrete composition (Table 1), it is possible to remove the concrete column (5) from the formwork after a maximum of 8 hours at not too low temperatures. The concrete column (5) obtained after a maximum of 8 hours of curing has a compressive strength between 21 and 23 MPa, a smooth aspect, and a uniform color. In the long term, the concrete column (5) obtained has good resistance to moisture, frost and salt. The presence of calcium chloride in the indicated amount ensures that said compressive strength of the concrete column can be obtained within the stated cure time. The intended compressive strength of the concrete column (5), obtained from the above concrete composition, after 28 days is between 64 and 66 MPa. EXAMPLE 2:
    Example 2 includes all steps and features discussed in Example 1. In addition, in Example 2, the concrete column (5) is additionally provided with a wider base plate (6). The base plate (6) is welded to the reinforcement basket or reinforcement (7, 8, 9). Before or after welding the foot plate (6) to the reinforcement (7, 8, 9), four external openings (13), each at a corner of the foot plate (6), are drilled through the foot plate (6). A possible embodiment of a concrete column provided with base plate (6) is shown in Figure 3. The base plate (6) is wider than the concrete column (5) and is symmetrical with respect to the lower surface (18) of the concrete column (5). In an additional step, an anchor plate (2) is provided in a construction (1). The structure (1) is a foundation solid. The anchor plate (2) comprises four openings which are intended to guide four external rods (3). The external bars (3) are fitted in the structure (1). For this purpose, elongated holes are drilled in the structure (1) and external rods (3) are then fitted in the holes. The external bars (3) are provided with a thread. In a next step, the concrete column (5) is connected to the structure (1) by means of its base plate (6). The external rods (3) are hereby connected to the external openings (13). For this purpose, nuts (4) are fitted at the height of each external rod (3), and above and below the base plate (6). A possible embodiment of this connection is shown in Figure 4. However, the nuts present under the base plate (6) cannot be observed in this Figure 4. In Figure 5 the concrete of the concrete column (5) is omitted so that the connection between reinforcement (7, 8, 9) and base plate (6) is visible. In addition to a connection between concrete column (5) and structure (1), the base plate (6) with external openings is extremely suitable for adjusting the alignment of the concrete column (5). To this end, the nuts (4) are each loosened or tightened until the concrete column (5) has the desired alignment. EXAMPLE 3:
    Example 3 includes all steps and features discussed in Example 1 and Example 2. In addition, in Example 3, four cavities extending along the length dimension (16) of the concrete column (5) are drilled into the concrete column (5). A sleeve (12) is then beaten in each of these cavities. Internal openings are also drilled in the base plate (6) in line with the positions of the sleeves (12). A possible embodiment of such a concrete column (5) with foot is shown in Figure 6. In a further step, a plate-shaped structure (10) is welded to the foot plate (6). Such a plate-shaped structure (10) functions as an additional reinforcement of the base plate (6). In an additional step, the structure (1) is additionally provided with internal bars (11). The internal bars (11) are cast in the concrete of the structure (1). An anchor plate (2) is hereby provided on the structure (1) which is suitable for guiding both internal rods (11) and external rods (3). In a next step, the concrete column (5) is connected to the structure (1) via the external openings (13) and tubes (12). The external openings (13) are connected to the external bars (3) as discussed in Example 2. The tubes (12) are connected to the internal bars (11) by pouring concrete into the tubes (12). Both the inside of the sleeves (12) and the surface of the internal bars (11) are also provided with a ribbed pattern, whereby a highly efficient connection is obtained. A possible embodiment of the connection according to Example 3 is shown in Figure 7. It is emphasized here that the concrete in the representation of Figure 7 has been omitted in order to be able to display the internal components. EXAMPLE 4:
    Example 4 corresponds to all the steps and characteristics of Example 1, except for providing another formwork, namely an adjustable formwork (38), and apart from additional steps related to this adjustable formwork (38). A possible embodiment of an adjustable formwork (38) according to Example 4 is depicted in Figure 9. For pouring the concrete composition into the formwork (38), the arrangement of the adjustable formwork (38) is adjusted such that after the concrete composition has hardened a concrete column (5) according to Figure 8 is obtained. The concrete column (5) is equipped with a console (29), rounded corners (28) and a rectangular recess (34). Such recesses (34) are extremely suitable for accommodating the ends of a concrete beam or concrete beam which, due to the presence of such recesses (34), rests nicely and without loss of space on consoles (29) of at least two concrete columns (5). The rounded corners (28) are obtained by applying removable corner slats (39) to the formwork (38), and this for casting the concrete composition. The releasable corner slats (39) are provided with magnets (Figure 10), with which magnets the releasable corner slats (39) are attached to the formwork (38). The rectangular recess (34) is obtained by applying detachable beam-shaped elements (41) to the formwork (38) for pouring the concrete composition into the formwork (38). The beam-shaped elements (41) are provided with magnets (Figure 11) and are attached to the formwork (38) by means of these magnets.
    权利要求:
    Claims (14)
    [1]
    CONCLUSIONS
    Method for manufacturing a concrete column (5) whose length dimension (16) is considerably larger than the width dimension (14) and the height dimension (15), which method comprises at least the following steps: providing a formwork (30, 38); applying a reinforcement (7, 8, 9) in the formwork (30, 38); pouring a concrete composition into the formwork (30, 38); curing the concrete composition in the formwork (30, 38) into a concrete column (5); removing the concrete column (5) from the formwork (30, 38); characterized in that the concrete composition comprises calcium chloride and a hydroxide base and in that removal of the concrete column (5) from the formwork (30, 38) is carried out when the concrete column (5) has a compressive strength of 20 MPa to 25 MPa.
    [2]
    Method according to claim 1, characterized in that the method further comprises the step of preparing a concrete composition, wherein 5 to 9 parts by weight of water, 13 to 21 parts by weight of cement, 22 to 34 parts by weight of fine aggregate material, 35 to 53 parts by weight of coarse aggregate, 0.25 to 0.55 parts by weight of calcium chloride and 0.25 to 0.55 parts by weight of hydroxide base are combined with each other.
    [3]
    Method according to claim 1 or 2, characterized in that during the curing of the concrete composition in the formwork (30, 38) to a concrete column (5) the temperature of the environment in which the formwork (30, 38) is placed above 0 ° C.
    [4]
    Method according to one of claims 1 to 3, characterized in that the method further comprises the step of manufacturing a formwork (30, 38).
    [5]
    Method according to one of claims 1 to 4, characterized in that the method further comprises the step of manufacturing a reinforcement (7, 8, 9), wherein main reinforcements (7) are connected in parallel to standing reinforcement brackets (8) and horizontal reinforcement brackets (9) are connected transversely to main reinforcements (7) and vertical reinforcement brackets (8).
    [6]
    Method according to one of claims 1 to 5, characterized in that the formwork (30, 38) is an adjustable formwork (38), which adjustable formwork (38) comprises at least one formwork floor and formwork side walls, which formwork floor and formwork side walls are modular are constructed and comprise movable floor modules (36) and movable wall modules (35), and wherein the method further comprises the step of adjusting the adjustable formwork (38).
    [7]
    Method according to claim 6, characterized in that the step of adjusting the adjustable formwork (38) further comprises exchanging one or more movable floor modules (36) and / or wall modules (35) with console modules (37), and / or further comprising moving one or more console modules (37), which console modules (37) are adapted to provide a console (29) on a concrete column (5).
    [8]
    Method according to claim 6 or 7, characterized in that the step of adjusting the adjustable formwork (38) both before the step of providing a concrete composition in the formwork (38) and after the curing step of the concrete composition for forming a concrete column (5) is carried out.
    [9]
    A method according to any one of claims 1 to 8, characterized in that the method further comprises the step of mounting releasable corner slats (39) on the formwork (30, 38), said releasable corner slats (39) being arranged to bevel corners (28) of a concrete column (5).
    [10]
    A method according to any one of claims 1 to 9, characterized in that the method further comprises the step of applying releasable beam-like elements (41) to the formwork (30, 38), which releasable beam-like elements (41) are arranged to obtain rectangular recesses (34) in a concrete column (5).
    [11]
    A method according to any one of claims 1 to 10, characterized in that the method further comprises the step of applying a wider base plate (6) to the reinforcement (7, 8, 9) of the concrete column (5), and further comprising the step of providing external openings (13) in the vicinity of the circumference of the foot plate (6).
    [12]
    Method according to claim 11, characterized in that the method further comprises the step of arranging at least one cavity extending along the length dimension (16) of the concrete column (5), and of arranging a sleeve (12) in each cavity extending in the longitudinal direction of the concrete column (5), and from the provision of internal openings (22) in the base plate (6) in line with the positions of said sleeves (12) in the concrete column (5).
    [13]
    A method according to claim 11 or 12, characterized in that the method further comprises the step of providing rods (3, 11) to a structure (1) to which the concrete column (5) is to be connected.
    [14]
    A method according to any one of claims 11 to 13, characterized in that the method further comprises the step of connecting the concrete column (5) to bars (3, 11) provided in a structure (1).
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    同族专利:
    公开号 | 公开日
    BE1022928A9|2016-11-30|
    BE1022928A1|2016-10-19|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BE20155404A|BE1022928A9|2015-06-29|2015-06-29|Method for manufacturing a concrete column|BE20155404A| BE1022928A9|2015-06-29|2015-06-29|Method for manufacturing a concrete column|
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