WO2015114182A1 - Method for the versatile application of a protective coating to structures and infrastructures - Google Patents

Abstract

The method according to the invention is carried out in steps, starting with sealing one of the outlets of a part of fibre cement tubing with adhesive tape, and then applying a primer over the entire surface, followed by the product according to the invention, consisting of a thermoplastic (4) made of products pertaining to the family of polyureas, polyurethanes, polymers, advanced polymers, other derivatives in ceramic compositions and others with the same characteristics, thoroughly hot-mixed due to the product compositions, or cold-mixed, by means of projection in successive layers (5) on the outside, said layers (6) being continuously applied, due to the ultra-fast curing of said product, until the desired thickness is reached.

Description

 VERSATILE PROTECTION APPLICATION PROCESS IN STRUCTURES AND INFRASTRUCTURES

OBJECT OF THE INVENTION

The present invention relates to a versatile application process in situ, consisting of applying a coating on these based on a thermoplastic product or products belonging to the thermoplastic family such as polyureas, polyurethanes, polymers, advanced polymers, polymer based in isocionate and polyol, other derivatives with ceramic-metallic compositions and others of similar characteristics, as well as the use of these compounds for the elaboration of new structures or as a complement in the form of a coating both in construction structures and in infrastructures, obtaining an envelope that works as a barrier, armor or shield, through an increase in the thickness of the product that happens to be between 1 mm to 5cm and thicker, depending on the characters of the structure or infrastructure, obtaining a high impact resistance, at weather resistant to corrosion, erosion, abrasion, waterproofing Zation, which can be applied on different surfaces of concrete or concrete as well as metal, wood, plastics, fiberglass and polyester, polyethylene, asphalt, mortar, plaster, any construction material, thus extending the life of these structures and infrastructure . The product obtained by the process object of the present invention has a cure of 6 to 10 seconds with a commissioning of the structures or infrastructures of maximum 24 hours. The base composition of this product contains elements that form or belong to the thermoplastic family: such as polyureas, polyurethanes, polymers, advanced polymers, polymers based on isocyanate and polyol and any polymer with the following percentages in relation to weight:

- aromatic amine or polyamide or aliphatic 50%

- 50% polyoxypropylene diamine

Formulations with different composition can also be found: -Disocyanate: 0 = C = N -CH2- N = C = 0 -Diamine: H2N-CH2-CH2-NH2

Other derivatives with ceramic-metallic ingredients have the following compositions:

Bisphenol A. Epichlorohydrin 60%

5% titanium dioxide pigment

Silica (various grades) and other 35%

These percentages may change within a range of 5% to 40% of each element and even the adaptation of new elements for new compositions, but they are always intended to obtain the result that indicates the use of this invention.

It provides the state of the art with the advantage of greater durability of the life of any type of surface structures and infrastructure to which applies, whether these contain liquid or solid products, reducing product leaks and economic losses arising from such leaks. It is applicable in different sectors, such as the drinking water or desalination industry, sewage, waste, oil, petrochemical industry and its derivatives, gas treatment and distribution facilities, electricity from both nuclear power plants and thermal power plants. or combined cycle, the mining sector, the construction sector, agronomist sector, pharmaceutical sector, automobile sector and in any other sectors. In all this area it can be applied in all facilities, such as distribution lines, pipes, pipes, reserves, containment rafts, deposits, pavements, roofs and any type of surface. It is also applied in the installation for the creation of new structures such as paraments or rafts for containment both in areas of rocky and terrestrial or arid surfaces, also in river banks or in areas of risk of flooding by manufacturing paramentos to avoid the overflow, manufacture of channels for agricultural irrigation and supply channels.

In the cases of creation of surfaces on earthly or arid surfaces, since it is not a compact surface, the risk of detachment increases, including here the versatile application procedure object of the present invention, the previous placement of a geo-textile type fabric support or another that helps to consolidate the surface in these areas, and once said support is placed, the application of the thermoplastic wall with the high resistance provided by the present invention continues. In the case of rocky areas, since it is not a compact surface, polyurethane or other foam is injected or projected for the consolidation of the surface and on top of this surface the procedure object of the present invention is continued. The present invention is intended for use both outdoors and indoors and in areas of difficult access by robotic or other machinery that facilitates access to the process. It is definitely a solution to guarantee structural protection of any kind, with on-site execution by mobile factory or workshop. In the case of manufacturing or designing new structures or parts, the original structure or part is always used as a mold and an exact copy of it is made.

The advantages with this technique of application in all types of facilities that use distribution lines such as pipes, pipes, reservoirs, reserves, rafts or others indicated for the Industrial and construction sector. All this whether they are of type of surface and material (concrete, metal, plastic, polyester, fiber, wood, glass) intended or not; to the supply of water (potable or residual), gas, electricity, petroleum, refinery, petrochemicals, mining and any other fluid independently of liquids or solids. These facilities or structures are fully protected against impact and consequently conserve the supply longer thanks to this application technique.

The product or raw material is tested to be in contact with any liquid or solid of natural or chemical nature, drinkable human consumption products, as well as non-drinkable. In the case of structures or infrastructures that are in poor condition due to breakage or other, in active leaks (liquid leakage) a protective ring is created with the same product and the applied technique that lengthens the life of the installation previously having made a patch with the same material as the structure or infrastructure composition about the break. In the case of leaks that are not active (without leaking liquid) they are repaired directly with the same product and the technique applied until the complete sealing of the breakage, fissure or leakage or others.

BACKGROUND OF THE INVENTION Currently thermoplastics composed or independently of products belonging to the family of polyureas, polyurethanes, polymers, advanced polymers, polyol-based isocyanate polymers, other derivatives with ceramic compositions and others with the same characteristics are used and apply as a coating of the paint or corrosion type coatings, not reaching the manufacture or creation of a new surface or new body in the form of armor or armor as the present invention does. This means that they are only intended to protect against corrosion, erosion and waterproofing; However, the impact resistance is low as it is not recommended at high thicknesses and that limits us to not getting the necessary armor. The results are that it is not possible to manufacture or create a new structure and neither the adequate reinforcement to oppose a high impact resistance, in turn a longer supply time is not guaranteed without leaks in the structures or deterioration of the coating. So far with the conventional procedure the The only solution was to change the damaged structure and replace it with a new one, which implies a higher cost and delay in the commissioning of the services of these structures.

Although no invention identical to that described by the inventor has been found, the documents found that reflect the state of the art related thereto are set forth below.

Thus, document ES2053904T3 refers to a process for obtaining copolymers showing isocyanate groups with a determined molecular weight as an average weight value of 1000 to 100,000 by radically initiated copolymerization of olefinically unsaturated monomers and free of isocyanate groups with olefinically unsaturated monoisocyanates in such an amount, that 0.1 to 13% by weight of chemically incorporated isocyanate groups with an average NCO functionality of the copolymers of at least 2 are present in the copolymers, which are used as olefinically unsaturated monoisocyanates olefinically unsaturated compounds in the range of molecular weight from 252 to 800, which show a urethane group content of 7 to 24% by weight and an isocyanate content of 5 to 17% by weight, bound in tertiary carbon atoms which in turn are part of a cycloaliphatic ring, except 1 - isocyanate - 1 - methyl - 3 - ( 2-allyloxy-ethoxycarbonylamino) -cyclohexane and 1-isocyanate-1-methyl-3 - (2-acryloxyethoxycarbonylamine) -cyclohexane.

ES2068595T3 proposes a process for manufacturing composites and laminates reinforced with continuous or long fibers and / or filaments, such as Carbon Matrix Compounds, Ceramic Matrix Compounds, Glass Matrix Compounds, Vitroceramic Matrix Compounds, Metallic Matrix Compounds, Intermetallic Matrix Compounds, Cement Matrix Compounds, Concrete, Diamond or Plaster and Reinforced Polymers, including the successive phases of (a) forming a preform of reinforcing material by placing a ribbon, strip, sheet or raw cloth that includes numerous longitudinally oriented continuous fibers or filaments that are spaced from each other by means of uniformly distributed particles, joined by means of a flexible binder, (b) remove or convert most of the binder and, if applicable, (c) partially or completely fill the voids and cavities with matrix material.

Document ES2095557T3 describes a cathodic concrete reinforcement protection system comprising an anodic structure covered with poured concrete and having a plurality of strips with openings of valve material or alloy of valve material coated with an electrocatalytic layer, connection elements electrical and spacers of a cement-like material that supports said strips on the reinforcement, that the cement-like support material is of the composite type comprising dispersed, continuous or mesh fibers of a non-conductive material of a polymeric material.

Conclusions: As can be seen from the research carried out, none of the documents found solves the problems raised as the proposed invention does.

DESCRIPTION OF THE INVENTION The versatile application process of protection in structures and infrastructures object of the present invention is developed from the use of a thermoplastic product of products belonging to the thermoplastic family such as polyureas, polyurethanes, polymers, advanced polymers, other derivatives in ceramic and other compositions with the same characteristics, which are applied hot mixed by their product compositions, increasing the thickness of the coating from 1 mm, successively passing up to 5 cm and more thicknesses. With the application of said coating, another body is created that covers the existing one, covering it with a peculiarity unknown until now, as a plasticized envelope: structure protection and damage repair. Advantageously, both the application and the commissioning of the installation are very fast.

A pilot procedure for applying the product object of the present invention has been carried out on a concrete or fiber cement pipe; applying a thickness of between 3mm and 4mm covering the entire surface, and it has been observed that to the extent that the product was applied with said thickness, an armor or otherwise said was created somewhat similar to a high impact resistance shield . Said pipe was subjected to an impact test which consisted of applying blows with a hammer on the pipe thus covered in a high thickness, observing that the concrete or fiber cement pipe was destroyed and yet the product applied with the system object of the present invention it remained intact and preserving the state and shape of the concrete pipe structure, In addition to being a coating that works against corrosion, abrasion, waterproofing and erosion, it has also resulted in a new body with high impact resistance when applied at high thicknesses. With the versatile application technique of the present invention, the result has been the manufacture of a new surface that serves as armor of the original old surface, which will benefit all types of sectors, whether industry, construction or others, when applied in facilities that handle any type of liquid, chemical, solid and mineral obtaining a repair and commissioning in less time by the way of its application and curing. The structures that are treated and applied with the process object of the present invention have a notable reduction in repair and maintenance costs, given the physical strengths that are obtained.

Another solution or result of the process object of the present invention is that the thermoplastic serves to repair liquid leaks from any installation from the outside or inside, applying the product on the leak, considering leakage to the fissure or perforation of any element or surface to repair, first proceeding to cover the anomaly with any element compatible with the surface to be repaired, then the leak already treated with a thermoplastic ring is circled. The entire ring will retain the same thickness, this is also to hold the pressure that is created in favor of patching performed on the leak. The result is as if we had manufactured a new part above the existing one, clamp type with snap function and leak seal. The installation, both distribution lines and deposits on which the present procedure is applied are protected against strong impacts, the distribution of liquids is ensured, without such distribution being affected by leaks that force the supply to be paralyzed with the consequent losses economic, a longer life is guaranteed to the facilities of the supply, and on the other hand a saving of the maintenance. Installations or structures either made of concrete or metal intended for the supply of drinking or waste water, gas, oil, refinery, petrochemicals and any other fluid, regardless of whether they are liquid or solid, will be fully protected against impact, and preserved for longer. the supply With this applied invention technique we create a tight body of high resistance on any type of surface and material (concrete, metal, plastic, polyester, polyethylene, asphalt, fiber, wood, glass, plaster, etc.). The application of the procedure object of the present invention gives a great result in the repair and reinforcement, obtaining a high productive saving per work day, the waiting times of curing are a maximum of 24h, the set-up of the repaired installation or reinforced, applying this procedure is immediate.

The application of the system object of the present invention with thermoplastic is by projection with thermal functions machine that heats the product that is divided into several components to be able to mix, then its application is by projection, this makes it fast production. The thermal machine that heats and projects the thermoplastic is an installation composed of air compressor, air dryer, group generator, more hose components, projecting guns, mounting tool accessories and others. These facilities can be fixed in the workshop or mobile through mobile factories in vehicles. Once the mixture is made with this machine, it is applied directly or on a primer on any surface by the exterior or interior, and in cases of difficult access adapting a machine with robotic system to be able to access these areas as interior of pipes, pipes or distribution lines

Regardless of the application described, it is also possible to apply the same invention to tanks that have to be reinforced or rehabilitated, rafts or canals, slopes to stop the detachment, containment for liquids or solids, armor to protect facades or sculptures-historical moldings , creation of anti-overflow walls in rivers and sea-docks or others, creation of panels for continuous thermal-acoustic-insulated insulation without joints, creation of barriers and human security protections in inhabited buildings or in transit constructions of people with or without a vehicle, resisting, avoiding and reducing the landslides of roofs or others in case of seismic or similar that put human life at risk, statues and sculptures for decoration, plasticizing or wrapping surfaces of any material to protect them. BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the present specification, some drawings are attached which, by way of non-limiting example, illustrate an embodiment of the invention. In the drawings:

Figure 1: Fiber cement pipe piece

 Figure 2: Apply a primer

 Figure 3: Application of layers until the desired thickness is reached

 Figure 4: Pipe already coated

 Figure 5: Abrasion test with metal brush

 Figure 6: Resistance test

 Figure 7: The original pipe has been destroyed and a new one has been created Figure 8: Resistance tests

 Figure 9: Tube restored

 Figure 10: Liquid leak

 Figure 11: Leak repair

 Figure 12: Execution of the ring on the leak with the system of the invention

The numerical references of these figures correspond to the following constituent elements:

1. Adhesive tape

 2. Fiber cement pipe

 3. Primer

 4. Thermoplastic

 5. Coating layers

 6. Metallic brush

 7. Wood grip hammer and solid iron head

8. Water 9. Waterproof piece

 10. Truck

DESCRIPTION AND PREFERRED EMBODIMENT

 A preferred embodiment of the present invention can be developed through the application of:

A product whose base composition contains elements that form or belong to the thermoplastic family: such as polyureas, polyurethanes, polymers, advanced polymers, polymers based on isocyanate and polyol and any polymer with the following percentages in relation to weight:

- aromatic amine or polyamide or aliphatic 50%

- 50% polyoxypropylene diamine

They can also be found with formulations with different composition:

- Disocyanate: O = C = N -CH2- N = C = O

- Diamine: H2N-CH2-CH2-NH2

Other derivatives with ceramic-metallic ingredients have the following compositions: Bisphenol A. 60% Epichlorohydrin

5% titanium dioxide pigment Silica (various grades) and other 35%

These percentages may change within a range of 5% to 40% of each element and even the adaptation of new elements for new compositions, but they are always intended to obtain the result that indicates the use of this invention.

Developing the following stages: a) One of the outlets of a piece of fiber cement pipe is sealed with adhesive tape (1), this pipe has the dimensions (2) of 50cm long, 10cm in diameter and a section thickness of 1cm . thereby creating a false support base. b) A primer (3) is simply applied on the entire surface for a joint bridge, depending on the surface its total cure is not necessary, but with the viscous aspect it is already used for anchoring the thermoplastic (4). c) The product object of the present invention is applied, consisting of a thermoplastic (4) composed or independently of products belonging to the family; called polyureas, polyurethanes, advanced polymers, other derivatives in ceramic compositions and others with the same characteristics, well mixed hot by their product compositions, by projection in successive layers (5) on the outside, and being this ultra curing product quickly apply the layers (5) followed until reaching the desired thickness. d) At the end of said application, the thickness of the coating (5) ranging from 3.5 mm to 4 mm can be seen in the fiber cement pipe (2) already coated. e) We move on to the testing phase, placing the pipe (2) in a horizontal position at ground level. f) We perform a first abrasion test with a metal brush (6), observing that the product is not torn and does not suffer serious damage from scratches. g) We pass the second test consisting of impact resistance, for which we hit with a wooden handle hammer and solid iron head (7) repeatedly on the coating applied on the pipe (2). We begin to observe that the fiber cement pipe (2) begins to be destroyed while the coating (applied is doing its functions of armor or armor, and despite the blows it still retains the shape and dimension of the old pipe. H) Reaching the point in which the fiber cement pipe (2) is totally destroyed, we observe that a new pipe constituted by the coating (5) practiced is maintained, such that said coating (5) is an exact copy of its predecessor, but has no joints no perforation is observed, it is not deformed thanks to this application technique, where we had sealed an exit with adhesive tape (1) of paper the applied technique has covered it without making a difference because it is another substrate, everything is a monolithic body and with Very high impact resistance and all with little waiting time. i) Then, after reviewing and not finding any drilling, we perform a tightness test. The new tube-shaped body is filled with water (8) to verify exactly that there is no possible leak, and the result is to obtain a completely watertight piece (9). j) To the result obtained, the watertight piece (9) of the previous stage, we performed a mechanical resistance test, which consists of deforming the tube until its breakage. The tube is placed horizontally on the ground and a truck (10) is passed over. When passing the truck over we observe that at the time of traffic of one of the wheels on it, it is crushed but once the truck (10) passes leaving the tube (2) behind, it returns to recover its cylindrical shape and not It has been deformed. k) We carry out a final test, consisting of locating some breakage point due to the crushing done in the previous stage, which consists of another sealing test, we fill it a second time with water (8) and we observe that there are no leaks and with this result indicates that it has not suffered any type of damage. I) In case of leakage (8) considering leakage (8) to the fissure or perforation of any element or surface to be repaired, we proceed first to cover the anomaly with any element compatible with the surface to be repaired, and then the leak already treated with a thermoplastic ring, said ring retaining the same thickness sufficient to hold the pressure that is created in favor of the patching performed on the leak, the result being as if we had manufactured a new part above the existing one, type clamp with snap function and leak seal. With this invention technique we manufacture any surface, shape, design using the initial surface as a mold. We adapt through armor manufacturing with armor effects with very high impact resistance, corrosion protection, erosion, abrasion, waterproofing, with application outside or inside and in areas of difficult access as in pipes with robot system to cover or reinforce structures and even repair leaks.

With this application technique we obtain:

- Creation of plastic wrap with a shielded impact coating in the form of reinforcement on any surface.

- Waterproofing and construction of watertight vessels, swimming pools, rafts, pipes, deposits, covered reserve areas and any type of structural form.

- Renovation of surfaces and structures of any kind, form or architecture.

Claims

1.- Versatile application procedure for protection in structures and infrastructures, characterized by being carried out in the following stages: a) One of the exits of a piece of fiber cement pipe (2) 50cm long is sealed with adhesive tape (1) , 10cm in diameter and a section thickness of 1cm. thereby creating a false support base. b) A primer (3) is simply applied on the entire surface for a joint bridge, not being fully cured, but with the viscous aspect it is already used for anchoring the thermoplastic (4). c) The product object of the present invention is applied, consisting of a thermoplastic (4) composed of products belonging to the family; of polyureas, polyurethanes, polymers, advanced polymers, other derivatives in ceramic compositions and others with the same characteristics, either mixed hot by their product compositions or cold, by projection on successive layers (5) on the outside, and at Being this ultra fast curing product, the layers (5) applied to the desired thickness are applied. d) At the end of said application, the thickness of the coating (5) ranging from 3.5 mm to 4 mm can be seen in the fiber cement pipe (2) already coated. e) We move on to the testing phase, placing the pipe (2) in a horizontal position at ground level. f) We perform a first abrasion test with a metal brush (6), observing that the product is not torn and does not suffer serious damage from scratches. g) We pass the second test consisting of impact resistance, for which we hit with a wooden handle hammer and solid iron head (7) repeatedly on the coating applied on the pipe (2). We begin to observe that the fiber cement pipe (2) begins to be destroyed while the coating (applied is doing its functions of armor or armor, and despite the blows it still retains the shape and dimension of the old pipe. H) Reaching the point in which the fiber cement pipe (2) is totally destroyed, we observe that a new pipe constituted by the coating (5) practiced is maintained, such that said coating (5) is an exact copy of its predecessor, but has no joints no perforation is observed, it is not deformed thanks to this application technique, where we had sealed an exit with adhesive tape (1) of paper the applied technique has covered it without making a difference because it is another substrate, everything is a monolithic body and with Very high impact resistance and all with little waiting time. i) Then, after reviewing and not finding any drilling, we perform a tightness test. The new tube-shaped body is filled with water (8) to verify with accuracy that there is no possible leak, and the result is to obtain a completely sealed part (9). j) To the result obtained, the watertight piece (9) of the previous stage, we performed a mechanical resistance test, which consists of deforming the tube until its breakage. The tube is placed horizontally on the ground and a truck (10) is passed over. When passing the truck over we observe that at the time of traffic of one of the wheels on it, it is crushed but once the truck (10) passes leaving the tube (2) behind, it returns to recover its cylindrical shape and not It has been deformed. k) We carry out a final test, consisting of locating some breakage point due to the crushing done in the previous stage, which consists of another sealing test, we fill it a second time with water (8) and we observe that there are no leaks and with this result indicates that it has not suffered any type of damage. I) In case of leakage (8) we proceed first to cover the anomaly with any element compatible with the surface to be repaired, and then the leak already treated with a thermoplastic ring is surrounded, keeping said ring the same thickness. 2.- Versatile application procedure for protection in structures and infrastructures, according to claim 1, characterized in that the creation of any surface, shape, design using the initial surface as a mold, to which we adapt by coating to Layer base armor with shielding effects with very high impact resistance, corrosion protection, erosion, abrasion, waterproofing, applied outside or inside and in difficult areas access as in pipes with robot system to cover or reinforce the structures and even repair leaks. 3.- Versatile protection application procedure in structures and infrastructures, according to claim 1 and 2, characterized in that with this application technique one obtains: - Armored impact coating in the form of armor on any surface. - Waterproofing and creation of watertight vessels, swimming pools, rafts, pipes, deposits, covered reserve areas and any type of structural form. - Renovation of surfaces and structures of any kind, form or architecture.