KR101259097B1 - Method of continual concrete pavement and structure produced using the same - Google Patents

Abstract

The present invention relates to a seaming method and a structure produced thereby, and in particular, in the seaming method of forming a continuous concrete structure by pouring new concrete followed by other poured concrete, the other concrete is poured during the new concrete pouring. A) 100 parts by weight of a room temperature-curable organic liquid resin based on solids at or at a constant depth and width at the junction of the new poured concrete and the new poured concrete; b) 10 to 200 parts by weight of glass beads; And c) a process of pouring the chemical grout material including 10 to 500 parts by weight of the glass powder and successively plastering the surface, and the structure produced thereby. It is possible to prevent the occurrence of cracks at the joint surface by integration of the joint surface by sealing, thereby preventing leakage, thereby preventing moisture, microorganisms, mold, etc., and to prevent corrosion and deterioration of facility equipment. In addition, it is possible to prevent leakage due to cracking of the joint surface by connecting, to prevent displacement of the structure, to prevent vibration and to extend the life of the structure, and to prevent maintenance costs and damage to the structure due to the repair work. . In addition, the construction can be performed in parallel with the pouring work, so it is easy to implement and shortens the air, thereby minimizing the construction cost.

 Stitching, chemical grout, glass beads, fiberglass

Description

Jointing method and the structure produced by it {METHOD OF CONTINUAL CONCRETE PAVEMENT AND STRUCTURE PRODUCED USING THE SAME}

Figure 1 is a schematic diagram of a cross-sectional view schematically showing the connection portion of the concrete formed by the conventional seaming method.

Figure 2 is a schematic diagram of a cross-sectional view schematically showing an embodiment of the connection portion of the concrete formed by the stitching method of the present invention.

3 is a schematic view of a cross section schematically showing another embodiment of a connection portion of concrete formed by the stitching method of the present invention.

Figure 4 is a schematic diagram schematically showing an embodiment of the stitching method of the present invention.

Figure 5 is a schematic diagram of a cross-sectional view schematically showing an embodiment having a reinforcing layer in the connection portion of the concrete formed by the stitching method of the present invention.

Figure 6 is a schematic diagram of a cross-sectional view schematically showing another embodiment having a reinforcing layer in the connection portion of the concrete formed by the stitching method of the present invention.

Figure 7 is a schematic view of the cross-section schematically showing another embodiment having a reinforcing layer in the connection portion of the concrete formed by the stitching method of the present invention.

8 is a schematic view of a cross-sectional view schematically showing an embodiment of the seaming method of reinforcing the column by the seaming method of the present invention.

9 to 12 are schematic views of a cross-sectional view schematically showing several other embodiments of the seaming method of reinforcing the column by the seaming method of the present invention.

Figure 13 is a schematic view of the cross-sectional view schematically showing an embodiment having a reinforcing layer in the connection portion of the concrete formed in the vertical direction by the stitching method of the present invention.

14 is a photograph showing the compressive strength measurement site for the connection portion and the spaced portion of the concrete formed by the joint method of the present invention.

Description of the Related Art [0002]

10: other poured concrete 20: new poured concrete

30: waterproofing material layer 100: chemical grout

110: reaction layer 150: chemical grout layer

160: reinforcing mat 200: frame

250: rebar

The present invention relates to a seaming method and a structure manufactured thereby, more specifically, to prevent the occurrence of cracks at the joint surface by the integration of the joint surface stitched to prevent the leakage caused by this, and thus moisture, It prevents microorganisms, molds, etc., and prevents corrosion and deterioration of facility equipment. In addition, it is possible to prevent leakage due to cracking of the joint surface by joining, to prevent structure fluctuation, vibration, and to extend the life of the structure, and to prevent maintenance costs and damage to the structure due to the repair work. . In addition, since the construction can be performed in parallel with the pouring work, it is easy to implement, and the effect of shortening the air is related to the connecting method and the structure manufactured thereby, thereby minimizing the construction cost.

In remodeling using large-scale underground facilities, continuous civil structures, and existing structures, when concrete is large in size, it is difficult to continually pour them at a large scale. In this way, the connecting method, which is a method of connecting the first poured section and then placing the next section to complete the entire pouring, has been applied.

However, the structure produced by the seaming method can cause cracks in the seam due to the difference in shrinkage, heterogeneous interface, and copper and static load on the seam. The crack width is expanded according to the transfer and change of the load and the drying shrinkage, and the crack generated in this way intensively leaks and corrodes.

In order to prevent this, continuous casting is often impossible due to site conditions, and the newly developed epoxy adhesive for old and new adhesives has a low specific gravity and is difficult to use in concrete mixed with ready-mixed concrete including water. Therefore, in the field, as shown in FIG. 1, without applying any additional reinforcement to the joint that causes such a problem, simply apply a waterproofing method of applying a waterproofing material 30, which is a general waterproofing method, on the top of the pavement, landscaping facility, and other finishing materials. The situation is being processed.

However, in the case of applying a simple upper waterproofing material coating, when the crack width is increased due to the displacement of the structure or the vibration or the drying shrinkage, the waterproof layer of the upper part of the crack shows damage more quickly than the normal part and is likely to leak.

In particular, if cracks occur due to internal or external factors such as dry shrinkage of the material, behavior due to load changes, and dynamic loads, the method of injecting internally and removing the coated facilities, and re-installing after waterproofing, relieves the cost, inconvenience, and reliability. Due to the large losses lost, the development and dissemination of new techniques for crack repair in the seaming area is necessary.

In particular, in the current trend of expanding underground structures, the level of perfection of waterproof quality, durability of structures, and facility safety requirements are increasing, and damages and malfunctions due to corrosion of various machinery and control devices are problematic, and excessive humidity due to leakage Is an environmental pollutant due to the contamination of microorganisms and molds and the inflow of radioactive materials by groundwater.

In addition, the cracks generated in the pour joint (joint surface) of the structure is difficult to check the damage location because the upper part of the structure is covered with the finishing material as shown in Figure 1, many trial and error cases related to the diagnosis and treatment for repair Experienced and costly, and the epoxy filling method performed in the reverse direction as described above is limited in its repair, the effect is also unclear, and the upper part of the structure is covered with a finishing material damage It is difficult to check and recover the location, and it causes a large cost due to repeated diagnosis and construction, and it is recognized that problems related to defect management are frequent and difficult to terminate after the end of the warranty period.

In order to solve the above problems, in order to prevent the occurrence of cracking of the joint surface by the conventional seaming method, forming a joint surface on the surface of the joint surface to block the leakage due to the crack, displacement of the structure The purpose of the present invention is to provide a joint construction method and concrete structures manufactured thereby, which are easy to implement and shorten the air by minimizing the construction cost by preventing the vibration and extending the life of the structure, as well as being able to be installed in parallel with the placing work. do.

To achieve these and other advantages and in accordance with the purpose of the present invention,

In the joining method of forming a continuous concrete structure by pouring new concrete followed by other concrete,

A) 100 parts by weight of a room temperature-curable organic liquid resin based on solids at the junction of, or at a constant depth and width to, the joint of the other concrete and the new concrete at the time of the new concrete pouring; b) 10 to 200 parts by weight of glass beads; And c) pouring a chemical grout material including 10 to 500 parts by weight of the glass powder and successively plastering the surface.

Also,

Other cast concrete structures;

A new concrete structure that is poured in succession to the other concrete structure and has a filling space on or above the joint surface with the other concrete structure;

Based on the solid content formed by filling in the filling space of the new concrete structure, a) 100 parts by weight of the room temperature curable organic liquid resin; b) 10 to 200 parts by weight of glass beads; And c) a solid body of chemical grout material comprising 10 to 500 parts by weight of glass powder; And

Reaction layer formed on the interface between the solid body and the concrete structures

It provides a joint concrete structure, characterized in that it comprises a.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

The present invention relates to a stitching method, followed by other concrete 10, and then new concrete 20 (here, the new pour concrete is not necessarily limited to concrete, but includes various known finishes such as plaster mortar or cement, etc. In the joining method of forming a continuous concrete structure by pouring a), a certain depth and width at the junction of the other pour concrete 10 and the new pour concrete 20 when the new concrete 20 is poured. Based on the solid content, a) 100 parts by weight of the room temperature curable organic liquid resin; b) 10 to 200 parts by weight of glass beads; And c) pouring the chemical grout material 100 including 10 to 500 parts by weight of the glass powder and successively plastering the surface, or at the time of placing the new concrete 20, new pouring with other concrete 10 On the basis of solids (preferably on its entire surface) at the junction of concrete 20, a) 100 parts by weight of a room temperature curable organic liquid resin; b) 10 to 200 parts by weight of glass beads; And c) pouring the chemical grout material 100 including 10 to 500 parts by weight of the glass powder and successively plastering the surface.

In other words, in order to prevent cracks in the joints, which are a problem in the conventional seaming method, a mating surface must be present between the poured concrete and the concrete that is poured in succession. There must be a mating surface. To this end, the present invention uses the chemical grout material of the composition described above. In order to form the bonding surface, it is necessary to prevent separation of the three parts of the poured concrete and the chemical grout material and the concrete (the concrete) which is subsequently poured, and such components, in particular, the moisture contained in the concrete The key is not to lose its function (bonding function) by absorption. Preferably, the joining method can be applied to continuously joining the same planar structure to fabricate one wide planar structure. Specific examples thereof are as shown in FIGS. 2 to 7.

In addition to the formation of such a structure in the plane, in the case of reinforcement by increasing the cross section of the pier or pillar as a specific example, in order to increase the column cross-section area of the existing column and to improve the mechanical properties (toughness, compressive strength, etc.) of the column The circumference may be connected to the circumference. In this case, on the basis of the solid content at the junction (preferably in its entire surface) of the other concrete 10 and the new concrete 20 at the time of new concrete 20, a) 100 parts by weight of the room temperature-curable organic liquid resin. ; b) 10 to 200 parts by weight of glass beads; And c) pouring the chemical grout material 100 comprising 10 to 500 parts by weight of the glass powder (in this case, including applying) and continuously plastering the surface to carry out increasing the radius. It may be. That is, the chemical grout material is applied to the surface of other concrete and then new concrete is poured into the new concrete formwork in the circumferential direction, or molds for pouring the chemical grout material to the surface of the other concrete are installed and the chemical grout material is applied thereto. And then circumferentially pour new concrete into the new concrete formwork or apply plaster mortar. In this case, the pouring area of the new concrete and chemical grout material may further include a reinforcing material for increasing toughness, such as iron plate, reinforcing bars or welding thereof, or a wire mesh, and the reinforcing material may be a column in some cases. It may be formed by connecting with a reinforcing reinforcing material which drills a hole in and penetrates through this hole, or may be formed by connecting with a reinforcing material of a net structure surrounding the periphery of the column, or a through reinforcing material which drills a hole and is disposed through this hole, The reinforcing member may be made of only the reinforcement of the net structure surrounding the pillar, and the chemical grout material may be injected into the contact surface between the reinforcing member and the pillar (including the hole and the reinforcing member) so that the reinforcing member and the pillar are integrated. Specific examples thereof are as shown in FIGS. 8 to 12.

The chemical grout material used in the present invention is characterized by further adding glass beads and glass powder as a filler to a resin which has been widely used as a main component of a conventional non-shrink high viscosity chemical grout material. That is, the non-shrink high viscosity chemical grout material applied to this invention contains a) room temperature hardening type organic liquid resin as a main component. As this room temperature hardening type organic liquid resin, epoxy type, acryl type, urethane type, alkyd type, polyester type, polyvinyl chloride type, etc. are preferable. The epoxy-based resin is preferably a solvent-free or solvent- diluting epoxy resin having a molecular weight in the range of 350 to 3,000 MW among diglycidyl and triglycidyl types. The acrylic resin is preferably an acrylic urethane, an aqueous acrylic hydrosol, an emulsion-free acrylic silane, an ultraviolet curable acrylic, or the like having a methacrylic acid derivative as a main component. The alkyd based resin is preferably an alkyd resin in a paint form modified with a polybasic acid and a polyhydric alcohol ester compound, and includes rosin, phenol, epoxy, and vinyl styrene monomer. ), Alkyd resins modified with isocyanate, silicon, or the like can also be used. The polyvinyl chloride system preferably uses a plastic sol liquid resin of PVC.

In addition, unlike the conventional urethane-based grout material, the room temperature-curable organic liquid resin has the advantage that the non-shrink high viscosity chemical grout material of the present invention has no expansion (foaming) property due to the high specific gravity of glass beads and glass powder added as essential components. Therefore, before the concrete 20 to be newly poured into the non-shrink high viscosity chemical grout material 100 applied to the present invention is hardened (preferably, pouring the grout material together with the new concrete casting is performed between the concrete structure and the grout material). It is good because the fusion is good.) When the part is pushed to the side and poured into the filling space formed accordingly, the chemical grout material has moisture affinity at a specific gravity similar to that of newly poured concrete (reconcrete), so that no separation of materials occurs. , By forming the reaction layer 110 to increase the bonding strength has a strong adhesive strength, the grout material itself by the glass beads and glass fibers in the grout material itself has a high hardness and strength, so the new work and other concrete When hardened together at the boundary of concrete (before ready-to-dry) As the grout material is formed in the concrete structure as shown in FIGS. Convert parts to a single structure

That is, the new grout can be completed through the process of pouring the chemical grout material from the upper part at a constant depth and width to the joint portion of the new concrete and the new pouring concrete at the upper part, and successively plastering the surface. In order to provide a space for pouring the new pour concrete to a certain depth and width to the new concrete side may be poured into the grout material therein, as shown in FIG. 20) After pouring the grout material 100 in the space secured by the mold 200, the method of removing the mold and plastering may also be applied. That is, in order to secure the pouring width and depth of the chemical grout material, after the new concrete is poured, it is pushed by a certain width and depth, or a partition is installed to prevent the new concrete from entering a certain width and depth before the casting and the chemical grout material is installed. It can be applied in the form of removing it after pouring.

Preferably, the secondary concrete ready-to-use is placed at the joint of the first-poured concrete, and the filling space is about 10 to 30 mm, preferably poured at a depth and width of about 20 mm, and the surface is flattened. It is desirable to secure and simplify the construction. In addition, in order to secure an excellent bonding force and to facilitate the formation of the reaction layer, it is preferable to clean the surface around the joint of other concrete and then harden it after plastering with the chemical grout to form a bonding layer. More preferably, before the chemical grout material is poured into the other concrete, the method may further include applying a surfactant to the other concrete upper surface. This enables the chemical grout material and other concrete to be activated for ion bonding, thereby increasing the bonding strength between each other and increasing the strength of the other concrete.

In addition, these room temperature curable organic liquid resins act as a binder for imparting adhesion to cement, concrete, and the like, which are attached in the space where the chemical grout material is injected, and also impart acid resistance and alkali resistance to the chemical grout material itself.

If the content of the room temperature-curable organic liquid resin is too low, adhesion to cement, concrete, etc. is weak, and if the content is too high, the content of the glass powder, which is a relatively filler additive, is reduced, so that hardness, strength, and other grout materials are reduced. There is a problem that the physical properties as deterioration.

The chemical grout material applied to the present invention comprises b) glass beads. As glass beads, spherical, oval, or any shape glass beads may be used, and various sizes may be selected and used from those in which various sizes are distributed.

The content of the glass beads in the chemical grout material applied to the present invention is 10 to 200 parts by weight, preferably 100 to 200 parts by weight, and more preferably about 150 parts by weight based on 100 parts by weight of the room temperature-curable organic liquid resin solids. .

When the content of the glass beads in the chemical grout material applied to the present invention is less than 10 parts by weight, the flowability of the non-shrink high viscosity chemical grout material may be low, the strength and hardness after curing, glass beads in the non-shrink high viscosity chemical grout material When the content of more than 200 parts by weight of the room temperature curable organic liquid resin can not only decrease the content of the non-shrink high viscosity chemical grout material may be lowered and may be dropped after the non-shrink high viscosity chemical grout material is cured. When the content of the glass beads is 100 to 200 parts by weight, it is possible to satisfy the workability and physical properties.

Thus, the content of the glass beads added to the non-shrink high viscosity chemical grout material as a filler is preferably high when the specific gravity of the ready-mixed concrete is high, and low when the low specific gravity is high.

In addition, it is preferable to select the particle size of glass beads suitably according to a construction use and a construction thickness. The particle diameter of the glass beads at this time is more preferably 200 mesh to 3 mm. The use of glass beads with a particle size of less than 200 mesh results in low volume filling and low impact resistance, and the use of glass beads larger than 3 mm in particle size results in low dispersibility.

In particular, since glass beads have a spherical shape, glass beads give high fluidity to non-shrink high-viscosity chemical grout materials, and provide excellent shelf life in which a mixture of resin and filler additives is mixed well by simple stirring even after long term storage. .

In addition, the glass beads are higher in strength than sodium silicate and have a shape close to a spherical shape as described above, so that the glass beads absorb and disperse shocks from the outside well. Therefore, the non-shrink high viscosity chemical grout material applied to the present invention in which glass beads are added as a filler has excellent impact resistance.

The chemical grout material applied to the present invention further includes c) glass powder. This glass powder functions to increase the viscosity of the non-shrink high viscosity chemical grout material to increase impact resistance and tensile strength and to suppress shrinkage due to drying.

The glass powder used for this invention can use the thing of various particle shape and particle size. The particle | grains of this glass powder are obtained by pulverizing normal glass, and if a glass composition is compatible with resin, such as A, C, E, alkali-resistant glass powder composition, it will not specifically limit.

The glass powder is used in an amount of 10 to 500 parts by weight based on 100 parts by weight of the room temperature-curable organic liquid resin solid content, preferably 20 to 80 parts by weight, and more preferably about 50 parts by weight. When the content of the glass powder is less than 10 parts by weight with respect to 100 parts by weight of the room temperature-curable organic liquid resin solid content, the viscosity of the grout material may be lowered and the shrinkage force may be increased after curing. It is difficult to inject evenly, and there is a problem that the content of the room temperature-curable organic liquid resin is relatively decreased, so that the strength of the non-shrink high viscosity chemical grout material is lowered.

Therefore, in order to prevent material separation, it is preferable to inject grout material by adjusting the content of glass powder according to the specific gravity of the new concrete to be poured to adjust the same specific gravity.

Unlike silica or silica sand, this glass powder does not absorb resin, so it can be added a large amount in non-condensing high viscosity chemical grout material, and even if the content of glass powder is high, it is well mixed and dispersed in the room temperature-curable organic liquid resin, and the volume filling effect is very good. great.

As such, when glass powder is added to the non-shrinkable high viscosity chemical grout material, if the grout material injection conditions are low temperature, the glass powder content can be lowered to reduce the viscosity. On the contrary, if the grout material injection conditions are high temperature, the glass powder content is increased. It can also be used by increasing the viscosity.

The particle diameter of the glass powder is preferably 10 μm to 1 mm, and the glass powder also performs a function of filling the voids between the glass beads, and therefore, it is preferable to use one having a smaller particle diameter than possible glass beads.

If the particle diameter of the glass powder is less than 10 μm, the viscosity of the chemical grout material applied to the present invention may be greatly increased. If the particle diameter of the glass powder exceeds 1 mm, the void filling function of the glass beads is lowered, and the non-shrink high viscosity chemical grout is reduced. There is a fear that the strength of the ash is lowered or the shrinkage force is increased.

Optionally, pulverized glass fibers may be further added to the chemical grout material applied to the present invention. The addition of glass fibers increases the tensile strength of the cured grout material and increases the crack resistance when the non-shrink high viscosity chemical grout material is cured.

Such glass fiber is preferably a long glass fiber of E composition, it is also possible to use fibers of the alkali resistance composition. The glass fiber may be a chopped fiber obtained by cutting a glass fiber having a fiber diameter of 10 to 20 μm into a uniform strand length, or a milled fiber prepared by pulverizing an average fiber length. . The chopped fibers are preferably cut to a fiber length of about 2 to 12 mm, and the pulverized fibers preferably have an average fiber length of 100 to 300 m.

Such glass fiber is preferably such that 1 to 50 parts by weight based on 100 parts by weight of the solid content of the room temperature curing type organic liquid resin. If the content is less than 1 part by weight, the tensile strength of the cured building material grout material may be lowered, cracks may occur, and shrinkage may increase. If the content is more than 50 parts by weight, it is difficult to mix and disperse. More preferably, the content of the glass fiber is 1 to 10 parts by weight.

The chemical grout material applied to the present invention is very excellent in fluidity, but when easily injected into the gap of concrete, a solvent such as benzyl alcohol may be further added.

Moreover, a hardening | curing agent, a hardening accelerator, etc. can be further added to the said chemical grout material applied to this invention. The selection of the curing agent and the curing accelerator is determined according to the type and amount of the resin, and the amount of the curing agent is determined according to the type and situation of the construction site where the non-shrink high viscosity chemical grout material is injected.

The chemical grout material applied to the present invention has a viscosity of 1000 to 20000 cps, and is higher in viscosity than a grout material containing a small amount of sodium silicate as a main component of a conventional epoxy resin. In particular, when the chemical grout material applied to the present invention includes glass fibers, the viscosity is preferably 15000 to 20000. In addition, since the glass beads close to the spherical as an essential ingredient, despite the high viscosity, the fluidity is excellent, so it is possible to inject to the deepest place where impurities such as bubbles are blocked.

Therefore, the chemical grout material applied to the present invention has an excellent injection property, and when injected into a filling space according to a known method such as swelling, it is also possible to easily inject deeply.

As described above, the chemical grout material applied to the present invention, as well as connecting the connected concrete, itself is excellent at the same time acid resistance, alkali resistance, injection properties, fluidity, impact resistance, crack resistance and storage resistance. That is, the grout material is a paste-based material based on epoxy resin having excellent adhesion and curing properties to structures in water and in wet conditions due to its low surface tension. It protects the structure by preventing re-cracking caused by vibration and temperature change, and it supports smooth repair and reinforcement work on structures and grounds in water and wet state with a simplified method that does not soften in water and does not require PRIMER process even when mixed with water. In addition, it can be used simultaneously with ready-mixed concrete pouring, and there is no material separation due to the specific gravity and composition similar to that of concrete, which effectively prevents cracking of the seam.

In addition to this, the joining method of the present invention may be configured to further include a step of applying the waterproofing material 30 to the upper surface of the structure of the plastering. The cross section of the structure made through such a process is as shown in FIG. 4.

In addition, the joint method of the present invention in order to further reinforce the upper part of the structure by applying the chemical grout material 150 on the upper surface of the structure is made of plastering, covering the reinforcing mat 160 on the upper surface, ⅰ) It may be configured to further include an additional coating step of applying the waterproof material 30 or ii) applying the chemical grout material 150 or iii) applying the waterproof material 30 again after applying the chemical grout material 150. have. A drawing of a specific example thereof is as shown in FIGS. 5 to 7. That is, iii) the case where the chemical grout material is applied to the upper surface of the plastering structure, the reinforcing mat is covered on the upper surface, and the waterproofing material is applied to the upper surface is as shown in FIG. 5, and ii) the structure on which the plastering is performed. When the chemical grout material is coated on the upper surface, the reinforcing mat is covered on the upper surface, and the chemical grout material is applied on the upper surface thereof, as shown in FIG. 6, i) the chemical is applied on the upper surface of the structure where the plastering is made. The case of applying the grout material, covering the reinforcing mat on the upper surface thereof, applying the chemical grout material on the upper surface thereof, and then applying the waterproofing material again is as shown in FIG. 7. The reinforcing mat 160 may be applied to a reinforcing mat of various materials and thicknesses applied to the public, preferably, a strength reinforcing mat may be applied thereto, and a plurality of heterogeneous layers as well as a single material mat. Composite mat having a may also be applied, if necessary, may be repeatedly stacked a plurality of lamination of the reinforcing mat and the grout material.

In another aspect, the present invention provides a concrete structure produced through the above-described joint method. That is, the other concrete structure (10); It is placed in succession to the other concrete structure (10) and to the joint surface (preferably the entire joint surface) with the other concrete structure (for example, a reinforcement structure having increased the cross section of the column or piers) Or a new concrete structure 20 having a filling space thereon (for example, a structure which is continuously connected horizontally); Based on the solid content formed by filling in the filling space of the new concrete structure, a) 100 parts by weight of the room temperature curable organic liquid resin; b) 10 to 200 parts by weight of glass beads; And c) a solid body of chemical grout material comprising 10 to 500 parts by weight of glass powder; And a reaction layer 110 formed on the interface between the solid body and the concrete structures. Detailed description thereof is as described above, and the chemical grout material includes all of the grout materials described above.

In addition, the structure of the present invention may be configured to further include a waterproof material layer 30 applied to the upper surface of the structure as shown in Figure 4 to correspond to the above-described seaming method, Figures 5 to As shown in FIG. 7, the chemical grout layer 150 applied to the upper surface of the structure, the reinforcing mat layer 160 covered on the upper surface thereof, and the coated waterproofing material layer bonded to the upper surface thereof. Reinforcement layer 30, ii) reinforcement layer 150 made of the applied chemical grout material layer, or iii) a form further comprising a reinforcement layer made of a coated chemical grout material layer 150 and a waterproof material layer 30 applied to the upper surface It can be configured as. Specific examples thereof are as shown in FIGS. 5 to 7.

In addition, the stitching method of the present invention can be applied to the method as described above, preferably not only in the horizontal direction but also in the vertical direction. These include civil structures, columns, vertical building structures, continuous column cross-sections, cross-sections stacked on slabs, stacked bridge decks, subsequent column reinforcement tops, and laminated slabs. It is applicable to the reinforcement top surface forming, laminated bridge top plate reinforcement top surface forming, such a structure is based on the solid content on the upper surface of the other concrete, a) 100 parts by weight of the room temperature curable organic liquid resin; b) 10 to 200 parts by weight of glass beads; And c) Pour the chemical grout material comprising 10 to 500 parts by weight of the glass powder, and after the chemical grout hardening to a certain degree can be applied to the method of stitching the new concrete or plastering mortar on the upper surface.

In addition, the chemical grout material may be the same as described above, and thus the a) room temperature-curable organic liquid resin of the chemical grout material may be selected from the group consisting of an epoxy resin and a polyurethane resin, and the chemical grout material may be The epoxy resin may be a solvent-free or solvent-diluting epoxy resin having a molecular weight of 350 to 3000 MW among diglycidyl and triglycidyl types, and the particle diameter of the b) glass beads of the chemical grout material is 200 mesh. 3 to 3 mm may be used, and the particle diameter of the c) glass powder of the chemical grout material may be 10 μm to 1 mm.

In addition, the viscosity of the chemical grout material is preferably 1000 to 20000 cps as described above.

In addition, it is preferable that d) glass fiber is added to the chemical grout material by a) 1 to 50 parts by weight based on 100 parts by weight of the room temperature-curable organic liquid resin, as described above, and the glass fiber of d) is Chopped fibers cut into glass fibers having a glass composition of 2 to 12 mm, or milled fibers pulverized to a length of 100 to 300 μm, and d) glass It is preferable that the viscosity of the chemical grout material to which the fiber is added is 15000 to 20000 cps.

In addition, in the vertical direction as described above, the method may further include applying a surfactant to the top surface of the concrete before pouring the chemical grout material to the other concrete, wherein the chemical grout At least one of the group consisting of reinforcing wire, wire mesh, nonwoven fabric and carbon fiber is added to the space to be filled with the chemical grout material before pouring the chemical grout material in order to supplement the mechanical properties of the ash to improve the toughness of the solid body of the chemical grout material. It is preferable to further include a step of disposing a reinforcing material, and more preferably, the step of applying a surfactant to the surface of the other concrete before pouring the chemical grout material to the other concrete, the surfactant The chemical on the top surface Reinforcing material comprising at least one step of applying a diluted solution of the route material, and at least one of the group consisting of reinforcing wire, wire mesh, nonwoven fabric and carbon fiber in the space to be filled with the chemical grout material before pouring the chemical grout material The configuration in the form further comprising the step of helping to improve the mechanical properties of the other structure, the chemical grout solid and the new structure.

In another aspect, the present invention provides a seam concrete structure produced in this way, which is based on the solid content formed on the upper surface of the other concrete structure, the other concrete structure, a) 100 parts by weight of room temperature curing type organic liquid resin ; b) 10 to 200 parts by weight of glass beads; And c) a solid body of chemical grout material comprising 10 to 500 parts by weight of glass powder, a new concrete or plastered mortar structure which is subsequently added to the solid body upper surface of the chemical grout material, and the chemical grout material solid and the solid upper and lower parts. It comprises a reaction layer formed on the interface between the structure of the structure, which preferably comprises at least one of the group consisting of reinforcing wire, wire mesh, nonwoven fabric and carbon fiber inside the solid body of the chemical grout material as described above It may have a structure further comprising a reinforcement, the particle diameter of the b) glass beads of the chemical grout material of the concrete structure is preferably 200 mesh to 3 mm, as described above, the c) glass of the chemical grout material The particle diameter of the powder is 10 ㎛ to 1 mm As described above, in addition to the solid body of the chemical grout material as described above, d) glass fiber is added in an amount of 1 to 50 parts by weight based on a) 100 parts by weight of the room temperature-curable organic liquid resin. The glass fiber of d) may be composed of chopped fiber cut into a long glass fiber of E-glass composition to a fiber length of 2 to 12 mm, or pulverized fiber pulverized to a length of 100 to 300 μm. It is more preferable that it is (milled fiber).

Specific examples of the cross-section of the vertical seaming concrete structure formed by the above method are as shown in FIG. 13, and in addition to the case of FIG. 13, the reinforcement material is formed in a similar shape as that shown in FIGS. 8 to 12. Of course, it can be configured. Through this, the existing cast concrete is joined by the newly poured concrete and the solid grout layer of the chemical grout material, and the existing weak slab and the solid grout of the chemical grout material and the new slab are combined to utilize the mechanical strength of the existing slab. The new slabs and solids act as structures, and even if the thickness of the new slabs is thin, a structure that maintains sufficient strength and rigidity can be obtained.

An embodiment of such a joint concrete structure is as shown in FIG. This is shown in Fig. 14 with respect to the solid body region (5 lines), the new concrete region (1 to 4 lines), and the existing concrete region (6 to 10 lines) of the chemical grout after progressing on the plane. The compressive strength was measured at the intersection of the straight lines and the results are shown in Table 1 below.

1 line 2 lines 3 lines 4 lines 5 lines 6 lines 7 lines 8 lines 9 lines 10 lines A line 123 196 210 292 442 276 248 196 184 123 B line 184 307 307 442 426 248 224 248 224 145 C line 133 248 196 321 475 262 276 248 210 210 D line 171 196 238 307 410 248 210 238 196 133 E line 145 196 224 171 248 224 196 224 196 123

                                                               (Unit: kgf / ㎠)

That is, the splice concrete structure formed through the splice method of the present invention is a structure part (part spaced far from the splice) consisting of simply concrete having completed hardening at its connection part (solid body of chemical grout material) (5 lines) (1 Not only has a much higher compressive strength as compared to 10 lines), but also a concrete portion (3, 4, 6, 7, 8 lines) adjacent to a solid part, which is a portion where the chemical grout material is not directly introduced, has a high compressive strength. It can be seen that. Therefore, the chemical grout material not only hardens itself by flowing into the connection part, but also affects existing concrete structures and newly added structures, thereby improving the strength of the structure near the connection part.

According to the jointing method of the present invention and the concrete structure manufactured by the same as described above, it is possible to block the leakage according to the prevention of cracking of the joint surface by the joint, to obtain the effect of the structure fluctuation, vibration prevention and structure life extension In addition, maintenance costs and damage to the structure can be prevented due to maintenance work. In addition, the construction can be performed in parallel with the pouring work, so it is easy to implement and shortens the air, thereby minimizing the construction cost.

The present invention described above is not limited to the detailed description, examples, and drawings of the above-described invention, and various one of ordinary skill in the art without departing from the spirit and scope of the present invention described in the claims below. Of course, modifications and variations are also included within the scope of the present invention.

Claims (26)

delete Based on the solid content on the upper surface of the concrete, a) 100 parts by weight of the room temperature curable organic liquid resin; b) 10 to 200 parts by weight of glass beads; And c) pouring a chemical grout material comprising 10 to 500 parts by weight of the glass powder, and adding new concrete or plastered mortar to the upper surface after the chemical grout material is cured to a certain degree. 3. The method of claim 2, The a) room temperature-curable organic liquid resin of the chemical grout material is a joining method, characterized in that selected from the group consisting of an epoxy resin and a polyurethane resin. The method of claim 3, The epoxy resin of the chemical grout material is a glulycidyl type (triglycidyl) and triglycidum (triglycidyl) type of the joint method characterized in that the solvent-free or solvent dilution epoxy resin having a molecular weight of 350 to 3000 MW. 3. The method of claim 2, The particle diameter of the said b) glass beads of the said chemical grout material is 200 mesh-3 mm, The seaming method characterized by the above-mentioned. 3. The method of claim 2, The c) glass powder of said chemical grout material has a particle diameter of 10 µm to 1 mm. 3. The method of claim 2, Jointing method characterized in that the viscosity of the chemical grout material is 1000 to 20000 cps. 3. The method of claim 2, The method according to claim 2, wherein d) glass fiber is added to the chemical grout material of claim 2 in an amount of 1 to 50 parts by weight based on a) 100 parts by weight of the room temperature-curable organic liquid resin. The method according to claim 8, wherein the glass fiber of d) is a chopped fiber cut the glass long fiber of the E-glass composition to a fiber length of 2 to 12 mm, or pulverized to a length of 100 to 300 ㎛ Seaming method characterized in that the fiber (milled fiber). The method of claim 8, wherein the d) glass fiber added chemical grout material has a viscosity of 15000 to 20000 cps. delete delete delete delete 3. The method of claim 2, And sprinkling a surfactant on the top surface of the precast concrete before pouring the chemical grout material onto the precast concrete. 3. The method of claim 2, Before the chemical grout material is poured, placing a reinforcing material including at least one of a group consisting of reinforcing wire, a wire mesh, a nonwoven fabric, and a carbon fiber in a space to be filled with the chemical grout material. . 3. The method of claim 2, Applying a surfactant to the top of the precast concrete before pouring the chemical grout material into the precast concrete; Applying at least one time a solution of diluting the chemical grout material on the upper surface to which the surfactant is applied; And Before the chemical grout material is poured, placing a reinforcing material including at least one of a group consisting of reinforcing wire, a wire mesh, a nonwoven fabric, and a carbon fiber in a space to be filled with the chemical grout material. . delete Other cast concrete structures; Solid of the chemical grout material of claim 2 formed on the upper surface of the other concrete structure; A new concrete or plastered mortar structure that is subsequently added to the solid body upper surface of the chemical grout material; And And a reaction layer formed at an interface between the chemical grout solid and the structures above and below the solid. delete delete 20. The method of claim 19, Reinforcement concrete structure characterized in that it further comprises a reinforcing material containing at least one of the group consisting of reinforcing bar, wire mesh, nonwoven fabric and carbon fiber in the solid body of the chemical grout material. 20. The method of claim 19, Particle diameter of the b) glass beads of the chemical grout member is characterized in that 200 mesh to 3 mm. 20. The method of claim 19, And c) the glass powder of the chemical grout material has a particle diameter of 10 μm to 1 mm. 20. The method of claim 19, D) glass fiber is added to the solid body of the chemical grout material, a) 1 to 50 parts by weight based on 100 parts by weight of the room temperature-curable organic liquid resin is added. The glass fiber according to claim 25, wherein the glass fiber of d) is chopped fiber cut into a long glass fiber of E-glass composition to a fiber length of 2 to 12 mm, or pulverized to a length of 100 to 300 μm. Seaming concrete structure, characterized in that the fiber (milled fiber).

Images