KR200241764Y1 - Mold panel for repairwork and reinforcement - Google Patents

Abstract

The present invention relates to a formwork panel for water reinforcement, which is installed in water, in particular to prevent rust from occurring when installing bridges and to prevent cracking of concrete.

In general, bar structures were manufactured using reinforcing bars and concrete. There was a problem in that reinforcing bars were rusted when used for a long time and concrete cracked due to the expansion of the rust.

In order to realize this, the formwork panel of the present invention is made by stacking the inner and outer surfaces of the perforated metal steel sheet with FRP synthetic resin, and the aggregate is laminated on the inner layer to be used for reinforcement of underwater structures.

Description

Formwork panel for repair reinforcement {Mold panel for repairwork and reinforcement}

The present invention relates to a formwork panel for water reinforcement, which is installed in water, and in particular, a layer of aggregate is formed by using glass fiber in a formwork made of steel to prevent rust from occurring even when the bridge is used for a long time. The present invention relates to a formwork panel for underwater reinforcing reinforcement, which can prevent cracking of concrete and reduce safety accidents as well as maintenance cost.

In general, bar structures were manufactured using reinforcing bars and concrete, and there was a problem that rust occurred in reinforcing bars when used for a long time and concrete cracked due to the expansion of the rust.

As a result, safety accidents that cause human injury and maintenance work must be performed after a certain period of time, resulting in high maintenance costs.

The purpose of the present invention is to solve the problem, to laminate the glass fiber in the formwork made of steel plate used for the reinforcement of marine underwater structures, to prevent the cracks of the reinforcement structures and to prevent the occurrence of corrosion inside. It is to provide a formwork panel for reinforcement.

1 is a partial view showing an embodiment showing the structure of the formwork panel of the present invention.

<Brief description of symbols for the main parts of the drawings>

1: wooden mold 2: mold

3: release agent 4: gel coat layer

5,9,13,17: Mat 6,8,10,12,14,16,18: Glass fiber resin

7,15: roving cross 11: metal steel plate layer

19: aggregate

In order to realize this, the formwork panel of the present invention is manufactured by stacking the inner and outer surfaces of the perforated metal steel sheet with FRP synthetic resin, and the aggregate is laminated on the inner layer to be used for repairing underwater structures. It is a new composite structure of unsaturated polyethylene resin and glass fiber, which is reinforced plastic which is stronger than iron, lighter than aluminum, excellent in acid resistance, heat resistance and corrosion resistance and used almost permanently. Such fiber-reinforced plastics have a specific gravity of 1/5 of iron, an allowable tensile strength of about 1/2 of iron, light weight and excellent mechanical strength, and are excellent in manufacturability and usability. It is a high-molecular compound containing an ester bond in the main chain, and contains unsaturated acid (MA, FA, etc.) as one component, and the unsaturated alkyd obtained by esterifying polyhydric alcohol using saturated dibasic acid together is dissolved in the polymerizable monomer. The obtained resin is said. Roving cloth used for fiber-reinforced plastic is a product such as a foldable cloth that is woven using roving. At this time, there are two kinds of rovings: the filament from the bushing is pulled out without twisting into several strands and the strands are gathered from several strands. This roving cross can be used with most thermosetting resins. Roving crosses are used in large moldings to give high strength and are used with other reinforcing materials. Gel coating is mainly used with the product name TH-350C, and it is structurally chemical because it has a three-dimensional molecular arrangement as a lining coating material. It serves to prevent infringement.

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

Figure 1 shows the manufacturing process of the underwater structure of the present invention, to produce a wooden die (1), through the mold (MOLD) (2) and the coating of the release agent (3), gel coat layer (GEL COAT) (4 ), Laminate the mat (5), spray the glass fiber resin (6), laminate the roving cross (7), spray the glass fiber resin (8), laminate the mat (9), The glass fiber resin 10 is sprayed and the metal steel plate layer 11 is coated.

The metal steel plate layer 11 is bored.

Next, the glass fiber resin 12 is sprayed, the mat 13 is laminated, the glass fiber resin 14 is sprayed, the roving cross 15 is laminated, the glass fiber resin 16 is sprayed, The mat 17 is laminated, the glass fiber resin 18 is sprayed, and the aggregate 19 is laminated. The aggregate 19 may be placed on the sprayed glass fiber resin 18, and the glass fiber resin ( As the 18 is hardened, the aggregate 19 is fixed.

After that, it is hand compacted, cured, heated, demolded, finished, and manufactured in the same order as manufacturing completed and shipped. In this case, hand compacted aggregates 19 placed on the glass fiber resin 18 are prepared. Just press by hand to stick to the glass fiber resin.

As described above, the reinforcement formwork panel of the present invention manufactures a wooden mold using FRP synthetic resin and prevents cracking of the underwater structure and eliminates rust since it is laminated with a material having higher strength than rebar without rust occurring inside. It can be effective.

Claims (1)

In manufacturing the underwater reinforcement formwork panel, a wooden mold (1) is manufactured, a mold (2) is applied, a mold releasing agent (3) is applied, and a gel coat layer (GEL COAT) 4 is applied. , Stacking the mat (5), spraying the glass fiber resin (6), stacking the roving cross (7), spraying the glass fiber resin (8), stacking the mat (9), glass fiber resin ( 10) spraying, coating the perforated metal sheet 11, spraying the glass fiber resin 12, laminating the mat 13, spraying the glass fiber resin 14, roving cross (15) Laminating, spraying the glass fiber resin 16, laminating the mat 17, spraying the glass fiber resin 18, laminating the aggregate 19 and then manual compaction, curing heating, demolding, Formwork panel for underwater reinforcement, characterized in that made through the finishing work.