阅读说明：本技术 夹芯保温外墙板玻璃纤维拉结件受损修复加固方法 (Method for repairing and reinforcing damaged glass fiber pulling piece of sandwich thermal insulation external wall panel ) 是由 孙效明 邵徽斌 李建来 高则炎 胡欣 张伟 解俊峰 张明智 左文生 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种夹芯保温外墙板玻璃纤维拉结件受损修复加固方法,包括以下步骤：步骤一定位,按照设计图纸及构件损伤部位利用钢筋探测仪准确确定钻孔的位置与数量、步骤二钻孔、步骤三清孔、步骤四配置植筋胶、步骤五注入植筋胶、步骤六植拉结件、步骤七养护固化。本发明通过设计图纸及构件损伤部位先利用钢筋探测仪准确确定钻孔的位置与数量,然后,使用安装有12-18mm钻头的电动冲击钻在确定的位置钻孔,再将调配好的植筋胶注入成型的孔内,并将拉结件一端垂直插入注有植筋胶的孔内,最后,在常温下静置3-5天即可完成加固工作,不仅可以减少不必要的浪费,还能够提高装配式夹芯外墙板的结构稳定性。(The invention discloses a method for repairing and reinforcing damaged glass fiber drawbars of sandwich thermal insulation external wall panels, which comprises the following steps: positioning, namely accurately determining the positions and the number of the drilled holes by using a steel bar detector according to a design drawing and a damaged part of a component, drilling holes in the step two, cleaning the holes in the step three, configuring bar planting glue in the step four, injecting the bar planting glue in the step five, planting a tie piece in the step six, and curing in the step seven. According to the invention, the positions and the number of the drilled holes are accurately determined by a design drawing and a damaged part of a component by using a steel bar detector, then the holes are drilled at the determined positions by using an electric impact drill provided with a drill bit of 12-18mm, then the prepared bar-planting glue is injected into the formed holes, one end of a tie piece is vertically inserted into the holes injected with the bar-planting glue, and finally, the tie piece is stood at normal temperature for 3-5 days to complete the reinforcement work, so that the unnecessary waste can be reduced, and the structural stability of the assembled sandwich external wall panel can be improved.)

1. A method for repairing and reinforcing damaged glass fiber drawbars of sandwich thermal insulation external wall panels is characterized by comprising the following steps:

step one, positioning: determining the positions and the number of the drilled holes by using a steel bar detector according to a design drawing and a damaged part of a component;

step two, drilling: drilling holes at determined positions by using an electric impact drill and a 12-18mm drill bit;

step three, hole cleaning: cleaning immediately after pore forming, cleaning the ash on the pore wall for not less than 3 times by using a brush, blowing out dust by using a high-pressure air gun to ensure the dryness in the pore, and dipping cotton yarn into acetone to wipe the pore wall once;

step four, preparing bar planting glue;

step five, injecting bar planting glue;

step six, planting a pulling piece: one end of the tie piece is adhered with the bar planting glue and is vertically inserted into the hole;

step seven, curing and solidifying: the pulling-up member implanted into the hole should be cured at normal temperature without disturbance, and the adhesive can be completely cured within 3-5 days at 20 ℃.

2. The method for repairing and reinforcing the damaged glass fiber pulling part of the sandwich thermal insulation external wall panel according to claim 1, wherein in the first step, the steel bar detector can detect the position of the steel bars in the wall panel, so that the holes drilled by the steel bars can be avoided.

3. The method for repairing and reinforcing the damaged glass fiber tie member of the sandwich thermal insulation external wall panel according to claim 1, wherein in the second step, the depth range of the drilled hole is 13-15cm, in order to ensure the anchoring effect to be fully exerted, the embedding and the hole diameter of the tie member are strictly in accordance with the above requirements, the structure of the original concrete member is not damaged during drilling, the original main reinforcement and other stressed reinforcements of the member are not damaged, and the hole wall after hole forming is complete and free of cracks, honeycombs and pore channels.

4. The method for repairing and reinforcing the damaged glass fiber tie member of the sandwich thermal insulation external wall panel according to claim 1, wherein in the third step, the acetone is colorless transparent flowable liquid, is very volatile, is often used as a cleaning agent, and after hole cleaning, if the bar planting glue cannot be injected in time, the hole opening must be temporarily blocked to prevent dust, gravel and the like from entering the hole.

5. The method for repairing and reinforcing the damaged glass fiber pulling part of the sandwich thermal insulation external wall panel according to claim 1, wherein in the fifth step, the bar-planting adhesive solution is injected into the hole at a low pressure as soon as possible to discharge air bubbles and ensure the adhesive layer to be full.

6. The method for repairing and reinforcing the damaged glass fiber pulling part of the sandwich thermal insulation external wall panel according to claim 1, wherein in the seventh step, the cured pulling part needs to be sampled and inspected on site after five days.

Technical Field

The invention relates to the technical field of damage repair of glass fiber tie pieces, in particular to a method for repairing and reinforcing damaged glass fiber tie pieces of a sandwich thermal insulation external wall panel.

Background

Assembled sandwich outer wall panel generally uses non-metallic material (glass fiber drawknot piece) to connect inner leaf wallboard, core heated board and outer leaf wallboard to satisfy the heat preservation of outer wall panel overall structure, bearing capacity, deformation and durability, in prefabricated sandwich outer wall panel lifts by crane, deposits, transports, and later stage operation process, the improper atress of outer leaf wall causes glass fiber drawknot piece impaired easily, influences structural safety.

Therefore, it is necessary to invent a method for repairing and reinforcing damaged glass fiber pulling parts of sandwich thermal insulation external wall panels to solve the above problems.

Disclosure of Invention

The invention aims to provide a method for repairing and reinforcing damaged glass fiber tie pieces of sandwich thermal insulation external wall panels, which can solve the problems that the tie pieces proposed in the background technology are damaged and the structure safety is influenced by drilling damaged parts, injecting bar-planting glue and vertically inserting new tie pieces after the bar-planting glue is cured.

In order to achieve the purpose, the invention provides the following technical scheme: a method for repairing and reinforcing damaged glass fiber drawbars of sandwich thermal insulation external wall panels comprises the following steps:

step one, positioning: accurately determining the positions and the number of the drilled holes by using a steel bar detector according to a design drawing and a damaged part of a component;

step two, drilling: drilling holes at determined positions by using an electric impact drill and a 12-18mm drill bit;

step three, hole cleaning: cleaning immediately after pore forming, cleaning ash on the pore wall by using a brush for not less than 3 times, blowing out dust by using a high-pressure air gun, completely drying the pore, and dipping cotton yarn in acetone to wipe the pore wall once;

step four, preparing bar planting glue;

step five, injecting bar planting glue;

step six, planting a pulling piece: one end of the tie piece is adhered with the bar planting glue and is vertically inserted into the hole;

step seven, curing and solidifying: the pulling-up member implanted into the hole should be cured at normal temperature without disturbance, and the adhesive can be completely cured within 3-5 days at 20 ℃.

Preferably, in the first step, the reinforcing steel bar detector can detect the position of the reinforcing steel bar in the wallboard, so that the drilling of the reinforcing steel bar can be avoided.

Preferably, in the second step, the depth range of the drilled hole is 13-15cm, in order to ensure that the anchoring effect is fully exerted, the embedding and the aperture of the tie piece are strictly in accordance with the above requirements, the structure of the original concrete member cannot be damaged during drilling, the original main reinforcement and other stressed reinforcements of the member cannot be damaged, and the hole wall after hole forming must be complete and undamaged without cracks, honeycombs or pore channels.

Preferably, in the third step, if the bar-planting glue cannot be injected in time after hole cleaning, the hole opening must be temporarily blocked to prevent dust, gravel and the like from entering the hole.

Preferably, in the fifth step, the bar-planting glue solution is injected into the holes at a low pressure as soon as possible, air bubbles are discharged, and the glue layer is full.

Preferably, in step seven, the cured pulling piece needs to be sampled and inspected on site after five days.

After the technical scheme is adopted, the invention has the following positive effects: the damaged repair and reinforcement method for the glass fiber pulling piece of the sandwich heat-insulation external wall panel is used for reinforcing the damaged external wall panel, the positions and the quantity of drilled holes are accurately determined by a design drawing and a damaged part of a component by using a steel bar detector, then, the holes are drilled at the determined positions by using an electric impact drill provided with a 12-18mm drill bit, the prepared bar planting glue is injected into the formed holes, one end of the pulling piece is vertically inserted into the holes injected with the bar planting glue, and finally, the reinforcement work can be finished by standing for 3-5 days at normal temperature, so that unnecessary waste can be reduced, and the structural stability of the assembled sandwich external wall panel can be improved.

Drawings

FIG. 1 is a schematic view of the repair of the glass fiber pulling member of the sandwich external wall panel of the present invention.

In the figure: 1 outer leaf wall board 1, 2 sandwich heat preservation board 2, 3 inner leaf wall board 3, 4 tie 4, 5 drilling 5, 6 planting bar glue 6.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the invention.

As shown in figure 1, the damaged repair and reinforcement method for the glass fiber pulling part of the sandwich thermal insulation external wall panel comprises the following steps:

step one, positioning: detecting the reinforcing steel bars inside the sandwich external wall panel by using a reinforcing steel bar detector according to a design drawing and a damaged part of a component, avoiding the reinforcing steel bars and determining the position and the number of the drill holes 5;

step two, drilling: drilling holes at determined positions by using an electric impact drill and a 12-18mm drill bit;

step three, hole cleaning: cleaning immediately after pore forming, cleaning ash on the pore wall for not less than 3 times by using a brush, blowing dust by using a high-pressure air gun, dipping cotton yarn in acetone to wipe the pore wall for one time, and cleaning the drill hole 5 by using the characteristic that the acetone is colorless, transparent and easy-to-flow liquid and is very volatile, and simultaneously ensuring that the interior of the drill hole 5 is kept dry;

step four, preparing bar planting glue 6;

step five, injecting bar planting glue 6;

step six, planting a pulling piece 4: one end of the tie part 4 is adhered with the bar planting glue 6 and is vertically inserted into the hole;

step seven, curing and solidifying: the pulling-on part 4 which has been inserted into the hole should be cured at normal temperature without disturbance, and the adhesive can be completely cured within 3 to 5 days at 20 ℃.

Further, in the above technical scheme, in the first step, the reinforcing steel bar detector can detect the position of the reinforcing steel bar inside the sandwich external wall panel, so that drilling of the reinforcing steel bar can be avoided;

further, in the technical scheme, in the second step, the drill hole 5 penetrates through the outer leaf wallboard 1 and the sandwich insulation board 2 and is stopped inside the inner leaf wallboard 3 body, the depth range is 13-15cm, in order to ensure that the anchoring effect is fully exerted, the embedding and the aperture of the tie piece 4 are strictly in accordance with the requirements, the structure of the original concrete member cannot be damaged during the drilling of the drill hole 5, the original main rib and other stressed reinforcing steel bars of the member cannot be damaged, and the hole wall after the hole forming is complete and free of cracks, honeycombs and pore channels;

furthermore, in the technical scheme, in the third step, the acetone is colorless and transparent liquid which is easy to flow and volatilize, is often used as a cleaning agent, and if the steel bar planting glue 6 cannot be injected in time after hole cleaning, the hole opening must be temporarily blocked to prevent dust, gravel and the like from entering the hole;

further, in the technical scheme, in the fifth step, the glue solution of the bar-planting glue 6 is injected into the hole at a low pressure as soon as possible, air bubbles are discharged, the glue layer is ensured to be full, and the structural stability can be further improved;

furthermore, in the above technical solution, in the seventh step, the cured pulling-on piece 4 needs to be sampled and inspected on site after five days, so as to ensure the success rate of repair.

The working principle of the invention is as follows:

referring to the attached figure 1 of the specification, firstly, accurately determining the positions and the number of the drill holes 5 by using a steel bar detector according to a design drawing and a damaged part of a component, then, drilling the holes at the determined positions by using an electric impact drill provided with a drill bit of 12-18mm, immediately cleaning the holes after drilling, removing ash on the hole walls by using a brush, blowing out dust by using a high-pressure air gun, dipping cotton yarns in acetone to wipe the hole walls once, injecting prepared bar planting glue 6 after the holes are completely dried, vertically inserting one end of a tie piece 4 into the holes injected with the bar planting glue 6, and finally, standing for 3-5 days at normal temperature.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.