NL8502696A - Concrete partition prodn. method - involves pouring onto sides and bottom of mould and swinging sides up after setting - Google Patents

Abstract

The method produces partitions, particularly of concrete, by casting in a mould and allowing to set. The concrete is poured into a mould having two or more hinging sidewalls, the bottom and sides of the which contain stiffening tubes forming a closed circuit which can be connected to a heater from which a heat-transfer medium is delivered, the mixture being delivered onto the extended walls and bottom with the aid of the enclosing strips, smoothed and compacted. After setting, the walls are swung up into the vertical position.

Description

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A method for the production on site of mountable partition walls and the production unit used therefor.

The invention relates to a method for producing dividing walls, in particular of concrete, provided with construction connections, by shaping a pre-mixture and allowing it to harden, as well as a production unit used for this method.

Partitions, in particular non-load-bearing partitions, are produced in the factory and transported to the construction site.

Such partitions are usually made of light or heavy concrete products for industrialized public housing. Such slabs intended for partitions which may have different dimensions, such as, for example, 5 cm, 7 cm and 10 cm, of light or heavy concrete, and which can have different own weights, are generally manufactured by pouring the mortar into horizontal mold bases , pressing and rolling, after which the plates are transported to climatic chambers to harden there under optimal and conditioned conditions.

In the plates acting as walls, further collapsed electrical lines and universal boxes as well as non-universal boxes, lifting hooks inside and outside the wall dimensions, recesses for coupling of electricity and ventilation channels can be provided. After the hardening, the plates are tilted mechanically and stored in racks vertically on the bag field for further hardening there. Subsequently, the walls are transported to the work in trailers with, for example, a loading capacity of up to several tens of tons in vertical position, to be unloaded there and stored or mounted directly in the work. During installation, the wall elements are either mounted before the floor slabs are installed or the walls are stored in the order of assembly in the soil and mounted after the floors have been installed. In the casting construction, the walls are mounted after pouring with specially developed transport / assembly wagons. The walls are placed on piglets on rough but flat finished floors. The walls are attached to the ceiling by welding the lifting anchors to a reinforcing bar to be installed in the floor. The interconnections are S5 6 2 3 9 6 ____. · - - - - - by means of screws in nylon plugs. The subsurface of the walls is carried out in cement / sand mortar. The seams between the walls and the ceiling are sealed and finished with a cement or plaster product or, where necessary, an elastic joint paste. It is clear that such walls can be custom-made with, for example, collapsed electrical cables, have a well-finished wallpaper surface on both sides and meet the standards for sound insulation and fire resistance. They can be mounted quickly in the work and are generally applicable, so that time savings are obtained on the construction site by increasing the construction speed. Furthermore, the construction site is clean due to the lack of chopping, breaking and moisture input. Nevertheless, such partitions, in particular light and heavy concrete partitions, have the disadvantage that they have to be factory-produced under conditioned conditions, a relatively large storage space is required for conditioning in climatic chambers and transportation is expensive. The plates must be transported in a vertical position, which can easily cause damage during transport. Thus, 20 additional repairs are required, which increases the price.

The present invention provides a method for producing partition walls, in particular of concrete, which is cost-saving compared to the known methods in that no storage or transport of the product is required and therefore no transport damage can occur. (

It is an object of the invention to have the production and assembly of the partition walls proceed at an adjusted pace and to shorten the time between the manufacture of the walls and their use.

It is a further object of the invention to provide a production unit with which such a partition can be produced on site during the periods in which a partition wall is required. It is also intended to design the production unit as a transport container, so that it is also possible to provide partition walls at remote locations without having to rely on a factory.

The invention thus provides a method for producing 8502 395 * -Jfr- - 3 - partitions, in particular of concrete, provided with construction connections by shaping and hardening a concrete premix characterized by it that the mixture is poured in the correct form into a production unit having at least two two or more hinged hinged side walls, the bottom and side walls of which comprise stiffening sleeves which form a closed circuit and which can be connected to a heating unit for circulating a thermal medium, the mixture is poured onto the laid out walls and possibly the bottom in the correct form with the aid of moldings, the mixture is smoothed and compacted in a manner known per se, after which the plates are accelerated after heating, which has accelerated by heating by moving the walls of the production unit to a substantially vertical position in a substantially vertical position deleted. The production unit is preferably designed in the form of a transportable container. The walls of the container are hinged, preferably all walls, with these walls being caught in, for example, expansion irons at a position of about 75-85 °, preferably 80 °, to facilitate the release of the paved wall. In this way, the hardened walls can be removed in a virtually vertical state and arranged on site, so that any breakage during possible horizontal transport of the plates is prevented. The production unit is preferably rectangular in shape, as is usual in transport containers, but it is clear that other shapes can also be used when needed. The condition is that the unit can always be used as a container and is thus easy to transport. The wall surfaces and preferably also the mold bottom are stiffened by means of tubular profiles, which are mutually connected and thereby form a closed circuit with connections to a heating unit. This closed circuit gives the advantage that the hardening of the mixture is accelerated by circulation of a heating medium, such as hot water, steam, hot air and the like, so that, even when using a fast-setting concrete mixture, the hardening time of the wall is possible and adjust the time of use. When the plate is poured in the morning, it is possible to install the partition in the afternoon.

It is clear that by proceeding in this manner, where

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55, -690 - 4 - the construction connections have already been made in the building board, can also work very quickly in remote places, while there is also the advantage that no highly skilled labor is required. The production unit naturally also includes auxiliary means such as a mortar mixer, surface roller, hand tools and equator for smooth production of the partition walls.

The invention is also directed to a production unit for use in the method of the invention, which is designed as a production container, with at least two hinged side walls, which are further provided with stiffening sleeves which form a closed circuit and are connectable on a heating unit to circulate a thermal medium. In a commonly used embodiment, the dimensions of the production container are 6 x 2.5 x 2.5 meters, the spread area being approximately 7.5 x 11 meters.

The inside of the walls is preferably constructed as a mold bottom, hinged on the base surface to preferably a position of about 80 ° in which they are caught in expanding irons in connection with the release of the paved wall.

The production unit of the invention will be further elucidated with reference to the drawing. In the drawing, figure 1 is a perspective view of the production unit in the form of a transport container, figure 2 shows the production unit in the expanded state, while figure 3 schematically shows the position of two side walls in a position of approx. 80 ° are hinged when the wall is released.

Figure 1 diagrammatically shows a production container, the usual size of which is 6 x 2.5 x 2.5 meters.

In figure 2 all four side walls 2, 3, 4 and 5 are knocked out, the hinge connections being indicated schematically by 7.

In this position, the premix is also applied to four surfaces of the side walls, if desired also on the surface of the bottom. Use is made of lists with which the molds are demarcated. 35 The floor can also be used as walking space. After the moldings have been applied, the mixture has been poured and compacted and otherwise smoothed by a surface roller or 8502 69 6 • βϋ .................. .......... 11 ^? ' - 5 - harden gutter plates. A heating medium is circulated through the plates, which is not indicated in the drawing for the sake of clarity.

Figure 3 shows the condition that the plates are hardened; the side walls are now placed in a position of 80 °, caught in expanding irons after which the paved wall is unloaded. A construction crane or container crane can be used for this. In this way, the partition can be immediately installed on site without the risk of damage or breakage.

10 In figure 2, the spread out area is approx. 7.5 x 11 meters. Figure 3 only shows a position of 80 ° for two walls? the two other walls can of course also be hinged in the 80 ° position when they have served as mold bases.

Partitions can be manufactured with the method and device of the invention which consist of the known standard types such as 5 cm light concrete, 5 cm heavy concrete, 7 cm light concrete, 7 cm heavy concrete, 10 cm heavy concrete. Preferably, walls are used that meet the airborne sound insulation requirements in accordance with NEN 1070, for example type dB -20 and type dB-Stil, -17 and -15. However, the method of the present invention can also already be used for the production of walls from sand and cement without further auxiliaries except water up to thicknesses of 5 cm. This obviously has great advantages for third world countries.

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Claims (11)

1. Method for producing partitions, in particular of concrete, provided with construction connections by bringing a concrete premix into the correct shape and allowing it to harden, characterized in that the mixture is poured in the correct shape into a production unit with at least two or more hinged hinged side walls, the bottom and side walls of which have stiffening sleeves which form a closed circuit with one another and which can be connected to a heating unit for circulating a thermal medium, the mixture on the laid walls and possibly the 10, the base is poured into the mold by means of moldings, the mixture is smoothed and compacted in a manner known per se, after which the plates, after the necessary hardening time has been formed, are displaced by moving the walls of the production unit to a substantially vertical position almost vertical position can be removed. Method according to claim 1, characterized in that the production unit is in the form of a transportable container. Method according to claims 1-2, characterized in that the straps of the unit are pivotable and can be locked at a position of 75-85 °. Method according to claims 1-3, characterized in that the production unit is rectangular in shape. 5. A method according to claims 1-4, characterized in that during production the production unit is heated by means of a thermal medium circulating in the closed circuit, such as hot water or steam or air. 6. Method according to claims 1-5, characterized in that a fast-setting concrete mixture is used. 7. Process according to claims 1-6, characterized in that the partition walls are produced directly on the construction site. 8. Production unit for use in the method according to claims 1-7, characterized in that it is built up from a flat bottom container to which the side walls are hinged, the walls and bottom comprising stiffening tubes forming a closed circuit. and connectable to a heating unit. 85 0 2 69 8 - 7 - Production unit according to claim 8, characterized in that it is designed as a transport container. Production unit according to claims 8-9, characterized in that it is rectangular in shape. Production unit according to claims 8-10, characterized in that the side walls can be locked in a position of 75-85 °. 85 02 S3 6