KR20060108132A - Concrete surface manufacture method of concrete construction and lining processing method of concrete surface to use a lining a mold and this mold - Google Patents

Abstract

The present invention forms a mold for treating the concrete surface with a chemical resin on the surface of the concrete molding structure to put the concrete in the formwork in a factory producing cement secondary processing products, and to process the concrete surface using the formwork It is also provided as a method of forming and lining, or forming a formwork at a construction site, and then preparing a concrete structure by putting ready mixed concrete therein.

In general, concrete is corroded by concrete properties deterioration factors such as moisture, climate change, acid infiltration by acid rain, salt, east sea, surface impact, ultraviolet rays, etc. Since it often happens that shorten the life and fail to function the intended concrete structure,

The methods provided to solve this problem are methods of coating a surface of concrete with organic, inorganic or organic and inorganic materials, such as waterproofing and painting, and organic and / or inorganic materials that improve the waterproofing performance when making concrete. Dispersing resins into unconsolidated concrete to harden concrete, remove corroded surfaces such as piers, and line up with high-strength concrete containing organic polymers. As a result, the desired purpose is difficult to achieve consistently obtained over the life of the concrete, and its adhesion is also easily degraded by the thermophilic factors that age the concrete.

However, the present invention is hardened by molding a chemical resin in the form of formwork or by applying a thermosetting resin to a mold for molding a concrete structure;

The heterogeneous thermosetting property on the surface of the concrete by processing the protrusions so as to physically bond the surface of the die or thermosetting resin-treated mold to the concrete, and attaching the adhesive member such as wire mesh or the formation of protrusions by coarse aggregate. The resin molded sheet material is integrated;

The concrete is injected and completely attached to the surface of the formed concrete structure so that the concrete structure becomes part of the structure surrounding the concrete structure even after curing.

In the mold or thermosetting resin-treated mold, the surface of the structure that does not come into contact with the concrete can be surface treated to form artificial marble, natural stone, specific patterns or letters, thereby improving concrete structure and urban aesthetics, and periodically The painting work to perform becomes unnecessary,

In addition, due to the strong waterproof and corrosion resistance of chemical resins, waterproof and corrosion resistance can be continuously maintained even in harsh environments, moisture in concrete evaporates, and harmful substances in concrete that are not gelated by hydration reactions leak into the air. It can block the air pollution and the risk of seeping into the ground and polluting groundwater and soil.

Accordingly, the present invention provides a structure-attached formwork (also referred to as a mold or a mold) formed of synthetic resin, the formwork processing the inner surface so as to adhere well to the concrete surface, the outer surface is artificial marble or It is an object to provide a structure for forming a natural stone pattern and the like, and to provide a method for making a concrete molded structure using the formwork.

Thermosetting resins, thermoplastics, unsaturated polyester resins (UP), surface linings of concrete moldings, formwork, molds, molds, concrete surface protective coatings,

Description

 Concrete surface manufacture method of concrete construction and lining processing method of concrete surface to use a lining a mold and this mold}

1 is a cross-sectional view showing embodiments of forming formwork (1 to 4) of an example concrete structure for the purpose of explanation of the invention,

Figure 2 is a cross-sectional view showing the formwork and lining and forming method showing an example of the formwork application of the water pipe, for example for the purpose of illustrating the present invention;

Figure 3 is a cross-sectional view showing the formwork and the lining and forming method showing an example of the formwork of the water tank block, to illustrate the present invention,

4 is a construction sectional view and formwork showing an example of constructing a pier of a bridge, for example, to explain the present invention;

Figure 5 is a construction cross-sectional view and formwork showing an example of the site construction of the retaining wall, for example to illustrate the present invention

FIG. 6 shows an example of another formwork for constructing a bridge pier, for example to illustrate the present invention. FIG.

Fig. 7 is a construction sectional view of repairing and reinforcing the pier of a bridge, which is an aging concrete structure, using formwork according to the present invention, which has been exemplified for explaining the present invention.

The present invention forms a form for forming a molded structure of concrete material, and the form and the formwork is attached to the concrete structure so that after the concrete structure is molded to protect the surface of the concrete structure (corrosion, waterproof, aesthetics, etc.) As for a manufacturing method and the construction method using this formwork,

Reinforced concrete moldings that can be applied here are complex, small sized precast moldings manufactured at cement secondary product processing plants, and piers, water tanks, and constructions using formwork at construction sites. Reinforced concrete construction objects such as water treatment plants, dams, retaining walls, beams, breakwaters, box culverts, port structures, chemical plant structures, and dustproof structures of buildings are all included, and concrete forming structures manufactured at cement secondary product plants are box culverts. , Fume pipe, VR pipe, manhole block, cable trough, plume and bench plume, water pipe, side channel pipe, perforated pipe, L-shaped port, sidewalk concrete board, boundary block, storm cap, ready-made terrazzo board, building panel, bridge beam , Artificial Reefs, Breakwater Blocks, Retaining Walls, Elastic Supports for Bridge Supports, Piles, Firewalls, Central Separators, Reservoir Blocks, Septic Tank Protection Blocks There is, blocks stairs, submerged weir, nakchagong, poles, the centrifugal force can rogwan, bricks, blocks, retaining wall blocks and the like.

Generally, a mold (sometimes called a formwork or a mold) made of metal or metal and wood, which is essential to shape a concrete formed structure, is manufactured, and a mold release agent is applied to the mold surface, and the concrete is poured to vibrate or centrifuge. The method of compacting molding and demoulding formwork is used, and when curing or construction (installation) of the completed structure is completed, waterproofing, corrosion resistance or paint construction on the surface of the structure has been provided in a general manner,

Recently, concrete structures have many advantages such as structural stability, durability, strength, versatility, economy, etc., but they are increasingly limited due to problems related to complex shape forming, molding precision, waterproof performance, chemical resistance, and risk of poor construction. .

Therefore, the present invention is to make a mold for molding a concrete structure using a chemical resin, or coated with a thermosetting resin on a specific part or all parts inside the mold for molding, the surface of the concrete structure formed before the resin is cured The surface is processed to be physically attached to the surface, and the resin coating layer is cured or the concrete is filled by filling the mold made of chemical resin with concrete, and even if the concrete structure is cured and shaped, the mold made of resin and the inner surface of the mold for concrete molding The thermosetting resin layer attached to the surface is adhered to the surface of the concrete structure to be a surface treatment lining coating film for waterproofing and corrosion-resistant treatment of the concrete surface in close contact with the concrete surface,

In addition, in the surface treatment method of the concrete structure, the form surface (surface corresponding to the outer surface of the concrete molded structure) and the surface protective layer made of a thermosetting resin are formed on the marble, natural stone, a specific pattern or color, and the like. The surface of the structure can be finished, and if a large number of structures having the same shape are made, a mold for injection can be made of thermoplastic resin such as PE, and the mold can be mass-produced by injection molding.

Formwork combined with the forming and surface lining of the concrete according to the present invention and a method for constructing a structure using the formwork is a formwork of a concept that has not been provided until now, and it is largely used for the precise construction of a durable, fully formed structure with a concrete molding technology that has not been put to practical use. Will contribute.

The present invention has been invented to improve the above problems, and various aging and deterioration factors (moisture penetration, alkali component elution, climate / temperature change, salinity, acid rain, etc.) that rapidly age and deteriorate concrete molded structures, Formwork that prevents corrosion and moisture penetration of concrete from physical shocks, wind, ultraviolet rays, corrosion of internal reinforcing bars, pollutants in the atmosphere, etc., adorns the surface of concrete forming structures, and performs concrete forming processes easily The purpose of the present invention is to provide a concrete surface-attached lining to the concrete and formwork, a coupling structure with the concrete attachment surface, and a construction method of the formwork.

Hereinafter, the present invention will be described with reference to the application example of the structure and molding, construction, lining method of the formwork as shown in the accompanying drawings,

1 is a cross-sectional view showing the forming formwork embodiments (1 to 4) of the concrete structure as an example for the description of the present invention, Figure 2 is an example of the formwork application of the waterway pipe, as an example for the description of the present invention. Figure 3 is a cross-sectional view showing the formwork and lining and forming method shown, Figure 3 is a cross-sectional view showing the formwork, lining and forming method showing an example of the formwork of the reservoir block, to illustrate the present invention, Figure 4 Is a construction sectional view and a formwork showing an example for constructing a bridge pier, for example to explain the present invention, Figure 5 is a construction sectional view showing a site construction example of a retaining wall, for example to illustrate the present invention 6 is a view showing an example of another formwork for constructing a bridge pier, for example to explain the present invention, Figure 7 is an example to illustrate the present invention, By formwork It is an illustration for demonstrating this invention by the construction sectional drawing and formwork which repair and reinforce the bridge | bridge of the bridge which is an aging concrete structure using, and does not limit the scope of this invention.

In order to achieve the object described above, the present invention is divided into a method, a structure and a material for forming the formwork according to the method and shape of the concrete molded structure, the use environment of concrete and the purpose of waterproofing and anticorrosive treatment, etc. ,

The formwork thus formed is simply a method of manufacturing and constructing (installing) the concrete structure so as to be suitable for the characteristics and uses of the intended concrete structure or facility.

First, the method of manufacturing the formwork and the formwork according to the present invention in the precast concrete forming structure to the variables such as the complexity of the shape of the concrete structure, the importance of the waterproofing and corrosion treatment, the production of the concrete structure and the method of forming process, etc. According to the three types of concrete formwork close contact form and form the formwork, divided into a method of forming a concrete structure as shown in Table 1 below;

Second, when forming a concrete structure using ready mixed concrete at the construction site as shown in the application example in Figures 4 and 5, the size of the structure is small, so that large structural load does not occur in the formwork, As a formwork suitable for the construction for the purpose of improving the waterproofing, corrosion prevention, and aesthetic performance on one side, and the manufacturing method and construction method of the formwork,

The formwork can be made of any thermoplastic or thermoset resin, but for economical and surface finish, phenol, epoxy, urethane, urea, unsaturated polyester (UPR), A thermosetting resin selected from one or more selected thermosetting resins selected from melamine and furan, or a hybrid of two or more selected resins is preferable, and more preferably, a heterogeneous unsaturated polyester (UPR) is mainly used. Is to hybridize the resin of

It is possible to expect good lining properties even when a form surface for structural reinforcement using a steel plate is used by using a thermoplastic resin such as PE and a thermosetting resin together.

[Table 1] Formwork and Forming Method Suitable for Precast Concrete Forming Structures

As shown in the method 3 of Table 1 using the thermosetting resin, the method selected by the shape and the molding amount of the form among the general method of forming the thermosetting resin, the hand lay-up method, the spray-up method, the press method, the rotation molding method, and the SMC method. In making thin concrete attachable formwork with a minimum thickness of 0.5mm or more,

The structure of the formwork includes a "connecting / waterproof protrusion" on a "former support" having a sufficient surface area to apply an adhesive for chemical resin to the formwork end face such as shown in FIGS. 4 and 5 so that neighboring formwork can be connected to each other. Insert grooves are formed, and "concrete adhesive reinforcement", "adhesive utilizing coarse aggregate", as shown in Figures 4 and 5 through the one or more kinds of adhesion means shown in Figure 1 for integral physical attachment with concrete; In order to form an adhesive surface (inner surface of the attachable formwork according to the present invention) with concrete with a "perforated iron plate", and improve the aesthetic performance of the surface of the concrete structure according to the present invention, the outer surface of the formwork is shown in Table 1 above. Like manufacturing method 3, it is possible to form protrusions or uneven parts to prevent advertisements, inserting patterns and letters such as marble and natural stone, and inserting concrete. Type construction, and the surface, it characterized in that the attachment to desorb the vinyl film from being damaged,

And, in making a die for strength according to the present invention that can be applied when forming a concrete structure by applying only the formwork according to the present invention, as shown in FIG.

As shown in the detail view "B" of FIG. 4, the formwork frame is formed of "steel sheet for bearing strength", "perforated reinforcing plate for resin bonding", "a-beam of resin-coated length and width direction", and "lining form surface layer" It is formed of a PE resin, and the other part is characterized by being formed in a structure that can be avoided by using a support steel pipe scaffolding and reinforcing plate required for general formwork by coating with a thermosetting resin.

In addition, in such a method of constructing a concrete structure molded lining integrated formwork for the field construction, as in the application example of Figure 4 and 5, the concrete structure lining integrated formwork according to the present invention that can be produced in a general form of the concrete structure is When molded, the formwork is not removed by demolding but is integrated with concrete to serve to improve the surface corrosion and waterproofing properties and aesthetics of the concrete structure, and the present invention as shown in FIG. It is divided into a method of sandwiching the formwork between the formwork and concrete and the formwork according to the present invention to reinforce the formwork for strength as shown in FIG.

The first method is an individual method according to the present invention for the waterproof, corrosion and exterior of the concrete structure surface in the reinforced concrete construction to form a common concrete structure such as building walls, shafts and retaining walls in the construction site as shown in the construction example of FIG. Apply adhesive to the outer side of the formwork on the formwork end, and combine the "connection / waterproof insertion protrusion" and "connection / waterproof insertion groove" to form an aggregate corresponding to the size of the concrete structure construction area. Characterized in that to form a concrete structure by inserting into the inner surface of the flow path used as formwork,

The second method is to the individual endwork for the individual load-bearing form according to the present invention for waterproofing and the method of the surface of the concrete structure in the reinforced concrete construction to form underwater concrete structures such as piers, underwater beams, etc. in the construction site as shown in the construction example of FIG. Adhesive is applied to the outer side of the formed "former support", and the "connecting / waterproof insertion protrusion" and "connecting / waterproof insertion groove" are combined to form an aggregate corresponding to the size of the concrete structure construction area, and to the inner surface of the formwork assembly. Using the "steel pipe scaffolding" as the supporting axis in the height direction, form the form support by the "width direction fixing member" using the steel material to stand in the position where the concrete structure will be constructed:

Remove this material (water, mud, etc.) inside the formwork assembly assembled as above;

On the bottom inside the formwork assembly, concrete of 10-20 cm in thickness is poured on the floor;

Again, the waterproofing coating or paint is poured thereon with a thickness of about 0.5 to 2 cm and the reinforcing bar assembly is inserted, the reinforcing work is performed, the concrete is poured, and the vibration compacting is performed;

When the molding is finished, before the concrete bridging occurs, a coarse aggregate is put on top of the concrete compacting surface to harden, and then the adhesive surface of the resin concrete attachment is performed;

When the curing of the concrete structure is finished, the coarse aggregate is characterized in that the cured by pouring the resin concrete mixed with coarse aggregate and filler in the thermosetting resin on the upper surface.

And as another example of the present invention, if the concrete surface-bonded steel structural formwork in the composition of the formwork assembly having a strong structural strength and fastening as shown in Figure 6 as an example of the underwater piers shown in FIG. 5;

Rather than partially tightening the load-bearing formwork according to the present invention, the "A" partial detail is also subjected to regular perforations in order to strongly adhere the resin to the "bearing iron plate" as in Examples 1 to 3, uneven surface treatment, Attaching the "resin adhesive perforated reinforcing plate", formed into a sheet, coated with a thermoplastic resin such as low-density polyethylene, when height adjustment is required, as in the embodiment of the cross-sectional view of the "B-BB" direction of FIG. By joining two or more formwork by bending the connection surface to each other by tightening bolts and adhesive construction,

It is possible to form formwork for forming concrete structures that withstand very strong strength, and concrete structures with this lining formwork are also fastened and have strong structural strength, and are suitable for earthquake-resistant design and construction against earthquakes.

When the assembly of the formwork assembly according to the present invention is completed, the bottom surface of the assembly is sealed with a lining formwork according to the present invention, and the construction is carried out when the reinforced concrete structure is constructed by leaving the upper part in the construction position in the form of an open container. It can be shortened.

As described in detail above, the concrete-adhesive integral lining formwork and the method for manufacturing and lining the formwork have been recently invented in order to apply the advantages of chemical resistance, corrosion resistance, waterproofness, etc. to the surface of a concrete structure. As the best alternative to corrosion of concrete;

In concrete structures, it has been found to be resistant to breakage and deformation, structural strength, economical (all costs for the entire service life), shockproof, waterproof, chemically resistant, environmentally friendly, aging and durable, and to chemicals such as hydrochloric acid. It can impart chemical resistance, breakage and deformation resistance, structural strength, waterproofness, economical efficiency,

In particular, the thermal factors due to the concrete characteristics (underwater curing, waterproofing, chemical resistance, reinforcing steel, deterioration of aquatic ecosystems, etc.) of civil structures such as underwater beams, bridges, underwater structures, coastal facilities, water tanks, etc. Since it completely blocks the outside of concrete and concrete, it provides an optimal solution.

Claims (10)

In the method of the surface lining coating treatment for the method, waterproofing, exterior of the concrete molding structures of the cement secondary products manufactured in the factory, Coarse aggregate and adhesive as shown in the example of FIG. 1 so as to lining as required in the manufacturing method 1 of Table 1 to the required part of the surface for forming the product of the form for forming the concrete structure to be manufactured, the physical coupling with the concrete on the upper surface of the lining Method of forming the concrete structure by forming the member in advance and putting concrete The method according to claim 1, Molding is difficult, or the concrete structure is reduced in productivity, as shown in the manufacturing method 2 and Table 3 of Table 1, by molding a method or lining the critical part in question as a claim 1, the concrete structure In the case of molding, a method of forming a concrete structure by attaching a partial or whole molded lining formwork to the formwork for forming a concrete structure, and the concrete surface-attached lining formwork thus formed The method according to claim 1 and 2, In order to treat the outer surface of reinforced concrete structures in the step of forming / manufacturing surface-mounted lining formwork, the lining material is colored with pigment, flame retardant is added to flame retardant, or lining material is made transparent. Surface processing method of lining formwork such as coloring coarse aggregate, which is an adhesive member attached to the surface, and lining formwork attached to the concrete surface thus formed In the reinforced concrete construction to make the reinforced concrete structure at the construction site, as illustrated in FIGS. 4 to 7 in order to ensure the stability of the method, waterproofing, exterior, seismic resistance, construction performance of the surface of the concrete structure, After forming the concrete structure, the lining formwork is attached to the concrete surface to form an integrated lining surface, and part of the surface contacting surface of the concrete structure is impregnated into the concrete to form a physical bond with the concrete structure. To form the surface of the concrete structure by forming the surface of the concrete structure by bonding the uneven surface with the concrete so that the form is impregnated into the concrete structure. The method according to claim 4, Forming lining plates of lining formwork with synthetic resin to a thickness of 1-50 mm; Each lining-type engaging groove / projection and formwork support is formed on the side of the lining plate as in the example of FIG. 5; Concrete surface-attached lining formwork with concrete adhesive reinforcement and coarse aggregate on inner surface By using this formwork, the adhesive is applied to the formwork support of each lining formwork on the inner surface of the formwork for general concrete structure forming, and the lining formwork assembly which is combined to be waterproof by inserting the protrusion into the groove is inserted into close contact with each other. Way The method according to claim 4, As in the example of detail "B" of FIG. 4 in forming a form for constructing a large civil structure such as underwater beams, bridges, underwater structures, coastal facilities, water tanks, etc., where the construction and use environment of the concrete structure is poor, Resin-bonded perforated reinforcement plate welded to prevent the resin from sticking to the bent edge steel plate, uneven processing or perforation on the surface, and concrete lining coated with synthetic resin on the surface of the steel structure welded with steel to the part bonded to the concrete Attachable lining formwork, Using this concrete attachable lining formwork, Fastening the aggregate corresponding to the size of the concrete structure construction method by applying an adhesive on the outer side of the support of the formwork, and by fitting the projection to the fastening groove; Reinforce the formwork assembly on the inner surface of the formwork assembly with a supporting axis in the height direction and a fixing member in the width direction; The reinforced form assembly is placed at the position where the concrete structure is to be constructed, and foreign matter (water, mud, etc.) generated inside the form assembly is removed from inside the support; On the bottom inside the formwork assembly, concrete of 10-20 cm in thickness is poured on the floor; Again, the waterproofing coating material or paint is poured thereon with a thickness of about 0.5 to 2 cm, followed by subsequent construction (inserting reinforcing bar assembly, reinforcement, concrete input, vibration compaction); When the molding is finished, before the concrete bridging occurs, a coarse aggregate is put on top of the concrete compacting surface to harden, and then the adhesive surface of the resin concrete attachment is performed; When the curing of the concrete structure is finished, a series of construction methods characterized in that by pouring the resin concrete mixed with coarse aggregate and filler in the thermosetting resin on the upper surface protruding coarse aggregate. In the lining formwork and manufacturing method and construction method as shown in the example shown in Figure 6 for improving the fastening force of the lining formwork having a bearing structure according to claim 6 and the structural stability of the aggregate, Welding and attaching regular perforated, uneven surface treatment or perforated resin bonding reinforcing plates to strongly adhere the resin to the steel sheet; Cutting, punching and banding steel sheet to an appropriate length; Placing a steel sheet on a roller-type press, and adding a thermoplastic resin that is melt-extruded onto the steel sheet while heating the steel sheet at 100 to 120 ° C .; The thermosetting resin is pressed onto a steel sheet by a roller type press, cooled with water to form a sheet coated with a thermoplastic resin on the steel sheet; Method and method for manufacturing concrete-attached lining formwork by bending each cross section of the formed sheet, When the formwork thus formed needs adjustment of the formwork's height (or width, and extends in only one direction) as shown in the example of FIG. 6, two or more sheet-shaped formwork are glued to each form section bend, and bolted ( Height direction expansion may apply the method of fitting by its own weight.) Integrate; The bottom of the integrated formwork assembly is completely sealed by fastening the concrete-attached lining formwork, and a water collecting port is installed to form the formwork form in a container form; A series of methods of opening and closing the water passage to place the container-shaped lining formwork assembly in place, removing foreign matter therein, and then constructing it by the construction method of claim 5 In the construction method according to claim 6 and 7, In the case of non-underwater construction or in the case of very large structures, a method of forming a concrete structure by stacking a concrete lining formwork aggregate from the bottom of the concrete structure In manufacturing a concrete-attached lining formwork suitable for construction according to claim 6 and 7 in the form of a container having an upper side opened in the shape of a concrete structure of a size to be constructed, Welding and attaching regular perforated, uneven surface treatment or perforated resin bonding reinforcing plates to strongly adhere the resin to the steel sheet; The steel structure is formed by reinforcing a suitable structure (performed on the inner side of the steel structure in contact with the concrete) by using a steel material in the shape of the concrete structure to be constructed by the steel plate in which the resin bonding means is formed; Lining the thermosetting resin on the inner and outer sides of the formed iron structure; Concrete adhesive surface is made by spraying coarse aggregate coated with thermosetting resin so that the surface is not covered and hardening it like lining coating layer. In the lining work for repairing and reinforcing aging underwater reinforced concrete structures, one or more lining formwork selected from the lining formwork specified in claim 4, 6, 7, and 9 are selected as illustrated in FIG. So, Forming a lining formwork aggregate larger than the size of the concrete structure; When placing the lining formwork in water, it forms a sliding device such as a small wheel of the lining formwork so as to maintain a proper distance from the aging concrete structure and not to impact it; Attaching and seating the die assembly step by step from the top until the bottom of the lining die assembly falls to the bottom of the water; Rubble at the height of 30 cm or more on the bottom of the space formed between the surface of the concrete structure and the lining-type formwork, and poured underwater concrete made of a fire separating admixture and polymer thereon to a height of 30 cm or more; When underwater concrete is cured, the upper surface is repaired and reinforced with a series of concrete structures that are finished with resin concrete mixed with thermosetting resin coarse aggregate and fine aggregate.

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