Field of invention

The present invention relates to application equipment / construction of such / reinforcement and cleansing of micro cracks in buildings of diverse kinds, which may consists of concrete, plaster, stone etc. The invention further relates to a computerised control, measurement and supervision system for the method of supplying, cleaning the object that is to be reinforced, repaired in micro cracks and crack.

Background of the invention

A small number of methods for filling, tightening cracks in concrete, plaster and stone are previously known. The hitherto known methods are injection into cracks with a width smaller than 2 mm. One then uses high pressure through cuffs that are fastened by glueing or drilling the to the cracks and this damages the appearance.

The limitations of these method are that one often cannot achieve a 100% filling, and that one move loose particles forward as one fills and these will eventually constitute a stopper agains further filling. The known methods damages the appearance and they may only be used to a limited degree as one has to take into consideration the counter forces, and further one uses alien substances such as epoxi, polyesters etc. in concrete, plaster and non synthetic substances. It is desirable to be able to fill 100% in micro cracks that have not been possible to fill until now and also to be able to fill with powder concrete, cement, chalk in micro cracks that can link the chemical bonds in the present substance. Due to the fact that one can use a high concentration of powder concrete, cement/chalk the free cement/chalk particles in the mix propagates into the original substance and this therefore achieves a higher strength and at the same time a higher PH value. One also has a higher strength in the cracks than with conventional methods in the cracks since the original substance gets a higher strength.

Objects of the invention

An object of the present invention is therefore to provide a higher degree of filling in micro cracks - cracks and a better force transmitting repair and thus an increased total strength and protection against decomposition in the original substance through being able to fill with ia. powder concrete to prevent corrosion of reinforcement at a too low PH and carbonisation of concrete, plaster etc.

Summary of the invention

This object is according to the invention achieved by the application equipment and corresponding method of the previously disclosed kind, where the application equipment comprise at least one plate Ia or several plates, bands, rubber element with distance delimiting system (9) that may be any version of figs 16a-d and an extra embodiment according to fig. 17, locking systems (7) of various kinds and software that control the system.

As one can create a vacuum under the plate and concurrently measure the volume down into the crack, ia. powder concrete supplied from a container (2) will tend to fill out all cavities that are under vacuum pressure and the normal air pressure excerts a force on the mass. The system then further controls the mass have filled the cavities by measuring the amount (33, 34) of air that is being removed by the vacuum pump (35). If this shows that the degree of filling is not fulfilled, the system supplies more ia. powder concrete for filling and makes anew check. At full degree of filling the computer indicates ok, whereupon one moves the equipment to a new area where it is needed and repeats the procedure.

Brief description of the drawings

The present invention will from here on be further described with reference to the enclosed figures, which show preferred embodiments of the invention for the purpose of exemplifying.

Fig. 1 shows a version of the application system according to the invention.

Fig. 2 shows a cross section of one kind of mixing container of the application system in fig. 1 according to the invention.

Fig. 3 shows in cross section one kind of mixing container for pressurising the substances of the application system in fig. 1 according to the invention.

Fig. 4 shows in cross section one kind of mixing container for pressurising the substances with an externally applied rotation pump for the substances of the application system in fig. 1 according to the invention.

Fig. 5 shows in a top view another embodiment of a container with guidance rails for rotation of the liquid into the duct system according to the invention.

Fig. 6 shows in a perspective view a preferred embodiment of a plate with joints according to the invention.

Fig. 7 shows in cross section one kind of plate according to one embodiment of the invention.

Fig. 8 shows in cross section one kind of tightening strip that may be pressurised according to the invention.

Fig. 9 shows in cross section yet another embodiment of an excess container for separating excess liquid, provided with guidance rails under plate for preventing possible liquid from reaching the vacuum part of the duct system according to the invention.

Fig. 10 shows simplified schematics of the control system with the various components according to the invention.

Fig. 11 shows in cross section a spiral cut tube according to the invention.

Fig. 12 shows in cross section a spiral cut hose according to the invention.

Fig. 13 shows in a perspective view a stand for mixing container according to the invention.

Fig. 14 shows the application system attached to a vertical surface with mixing container and separation container attached with a hose.

Fig. 15 shows the application system attached to a surface from below with mixing container and

separation container attached with a hose.

Description of preferred embodiments

Fig. 1 shows a mounted application system for horizontal use. The figure show a resilient application design according to the invention with a plate, which in this example is constituted by the substance container (2a), it is connected with a tube (17a) on which there are control valves (4) and a separation container (5), which is connected with a tube (17b) to the plate (la-c) and has a top connection to a vacuum and flow meter (34) for measurement of the volume under the plate. The meter (34) is connected to the valve (6) which is connected to the vacuum pump (34) by hose. The plate has tightening strips (9a) on the rear side which may be embodied in an expanding way (9a) according to the invention for tightening against the surroundings, such that air does not enter the vacuum phase and such that the supplied substance flows out to the surroundings too. The figure shows exemplifying embodiments of attachment plates (7), the task of which is to press the plate (Ia) against the surface, the attachment holders (7) are locked against the plate in this figure. The substance container (2a) is provided with a stirrer (3a) at the top of the container (2a) for rotating the filling substance. The containers are connected with each other with a smaller tubing system (21) that also has a control valve (20) attached in certain cases.

Fig. 2 shows an alternative embodiment of the mixing container (2a). The mixing container (2a) in this example is provided with a rotary mixer (3 a) at the top of the container. The rotary mixer is controlled by the computer system and it gives the rotary mixer various pulsating signals both in frequency and voltage. This is to optimise the mixture without air binding to the filling substance, it is also provided with guiding rails (10) at the bottom of the container, these are setting the mixture in motion when it passes into the duct system.

Fig. 3 shows an alternative embodiment of the mixing container (2b). The mixing container (2a) may, like in this example, be provided with an expansion bladder (13) at the interior of the top lid (12). The lid has a pressure connection (24) on the outer side where one supplies a controlled amount of air with the control valve (42), the lid is provided with a tightening gasket (30) for pressure. The container is also provided with guidance rails (10) at the bottom of the container, these are for putting the mixture in motion when it passes to the duct system. To the container can be attached a stirrer (14) with a motor (3b) on the exterior of the container, the connections

(31, 32) are provided on the side of the container.

The rotary mixer is controlled by the computer system and gives the rotary mixer pulsating signals of various frequencies and voltages, this to optimise the mixture without air bound in the various filling substances being used.

The expansion bladder is used when aiding in transporting mixtures under and upwards, and when a closed system is desired, ia. chemical mixes that may harm the environment and humans.

Fig. 4 shows a container (2b) provided with an external stirrer (14) with a motor (3b) placed at the side of the container and the entrance (31) to the mixer is visible. This container has a pressure lid (11) attached to the container, the lid also has a pressurised air connector (24) mounted on the lid. A gasket (30) is provided between the lid and the container to tightening against leaks.

Fig. 5 shows the bottom and interior of the mixing container (2b) from above. The placement of the guidance rails (10) is visible and how these are turning towards the container outlet. The angle alpha should be a deceasing angle within 7-30 degrees and the blades should have an elliptical shape and size to be optimal at the rotation action. The placements of the connectors for inlet (31) and outlet (32) to the outer rotary pump (14) are shown in the figure.

Fig. 6 shows in a birds perspective an example of a jointed plate (Ib), which also on the rear side has tightening strips (9a) which also may be expanding (9a) according to the invention for tightening against the surroundings. This is to prevent air from entering the vacuum phase and such that the supplied substance flows out to the surroundings too.

Fig. 7 shows in cross section a plate (Ia) with tightening strips (9a) with grooved contact surfaces, and also the pressurised air duct (26) where an over pressure mat be supplied for the strip to tighten larger cavities, roughnesses in the surface. The plate has a number of connections (25) for the various necessary containers.

Fig. 8 shows in cross section a tightening strip (9a-b) with grooved contact surfaces, and also the pressurised air duct (26) where an over pressure is supplied for the strip to tighten larger cavities, roughnesses in the surfaces. The strip expands vertically in the direction of the arrow such that it

get higher, the degree of which is controlled by supplying a certain amount of air. It is also reinforced with treads or angled metal plates (22) of various embodiments, depending on the size of the strip.

Fig. 9 shows in cross section an excess container (5) for separating excess liquid. It is provided with guidance rails (16) to spread the liquid under the plate (15) for stopping the rate of flow at presence of liquid from reaching the vacuum system on the vacuum pump according to the invention. The container is also provided with a connector (39) to connection for evening of pressure.

Fig. 10 shows simplified schematics of the control system (30) with the various components.

Fig. 11 shows in cross section an angularly cut tube (17a-b). The angle of the cut out grooves (19) is measured in the direction of the tube extension and the angle alpha is between 15-3 degrees.

Fig. 12 shows in cross section an angularly cut hose. The angle of the cut out grooves is measured in the direction of the hose extension and the angle alpha is between 15-3 degrees.

Fig. 13 shows separate holders (29) for the containers (2a-b + 5) when this is needed. The containers are placed in the holder and connected via hose (18a-b) to the plate (la-c).

Fig. 14 shows a mounted application system for vertical use a resilient application design according to the invention with a plate, which in this example comprises the substance container (2a) and a separation container (2a) which is attached with hoses (18a-b) upon which there is a control valve (4) on hose (18a). On its rear side the plate has tightening strips (9a) which may be expanding (9a) according to the invention to tighten against the surroundings, to prevent air from entering the vacuum phase and such that the supplied substance flows out to the surroundings too. The figure an example of an embodiment of a fastening holder (7), the task of which is to press the plate (Ia) against the surface, the fastening holders (7) are locked against the plate via the bar (27) in this figure. The substance container (2b) is provided with a stirrer (3a) at the top of the container (2a) for rotating the filling substance. The containers are connected to each other with a smaller hose system (21) which also has control valve 8 connected in some cases.

Fig. 15 shows a mounted application system for use from below a surface and upwards. It is with a resilient design according to the invention with a plate, which in this example comprises the substance container (2b) and a separation container (5) which are connected with hose (18a-b) and there are control valves (4) on the hose (18a). The plate has on its rear side tightening strips (9a) that may be expanding (9a) according to the invention, to tighten against the surroundings, to prevent air from entering the vacuum phase and such that the supplied substance flows out to the surroundings too. The figure shows an example of an embodiment fastening holders (7), the task of which is to press the plate (Ia) against the surface via the bar (27).

The fastening holders (7) are locked against the plate with the bar (27) in this figure. The substance container (2b) is provided with a stirrer (3b + 14) at the side of the container (2b) for rotating the filling substance. The containers are connected to each other with a smaller hose system (21).

Fig. 16a-b shows variants of embodiments strips for tightening against the surface and the surroundings. These are intended for use under plates or similar for preventing leakage and are expanding by supplying pressure to the duct (26) in the strip, the strip then expands vertically due to the reinforcement (22) and the design.

Fig. 16c shows one embodiment of a tightening strip that can attach lockingly both under and upwards when vacuum is created in respective vacuum duct (27, 28) according to the figure.

Fig. 16d shows one embodiment of a tightening strip with reinforcement (23) that tightens due to it being pressed against the object.

Fig. 17 shows an interior tightening strip that is applied directly onto the surface through vacuum action or some means of attachment of the strip. Thereafter the plate (la-c) is placed over the area on and the process starts. This is to reduce the counter forces by filling, especially by applications from below such as in fig. 15 when an expansion bladder is used.