Detection and reinforcement analysis method for reinforcing damaged concrete structure by using carbon fiber cloth
By carrying out comprehensive base treatment before reinforcing the concrete structure with carbon fiber cloth, the problem of insufficient attention to base treatment in the existing technology is solved, and a better concrete reinforcement effect is achieved.
Patent Information
- Application Number
- CN202411457876.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-01-21
AI Technical Summary
The existing carbon fiber cloth reinforcement damage concrete structure detection and reinforcement analysis methods rely on engineers' experience and intuitive judgment, resulting in insufficient attention to the substrate treatment, which can easily lead to poor concrete reinforcement effect.
Through multiple processes such as removing dirt, polishing edges, and cleaning the surface, we ensure that the preparation work before pasting the carbon fiber cloth is sufficient and standardized. At the same time, we use primer painting and leveling methods to provide good base conditions for pasting the carbon fiber cloth.
It effectively enhances the reinforcement effect of concrete, ensures that the carbon fiber cloth can be tightly adhered to the concrete surface, avoids problems such as hollowing and falling off, and improves the reinforcement effect.
Smart Images
Figure CN119334753A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of concrete reinforcement, and in particular to a method for detecting and analyzing a damaged concrete structure reinforced with carbon fiber cloth. Background Art
[0002] Structural testing is a comprehensive inspection and assessment of damaged concrete structures to determine the extent of damage, safety and reinforcement needs. This process usually includes detailed measurements of damaged areas, concrete strength assessment, steel bar strength assessment and crack measurement.
[0003] Existing methods for detecting and analyzing damaged concrete structures reinforced with carbon fiber cloth usually rely on engineers' experience and intuitive judgment to roughly assess and locate the damage. They may not pay enough attention to the base treatment, which can easily lead to poor concrete reinforcement effects.
[0004] The existing detection and reinforcement analysis methods for damaged concrete structures reinforced with carbon fiber cloth may not pay enough attention to base treatment, which may easily lead to poor concrete reinforcement effect. This detection and reinforcement analysis method for damaged concrete structures reinforced with carbon fiber cloth ensures that the preparation work before pasting the carbon fiber cloth is sufficient and standardized through multiple processes such as removing dirt, grinding edges and corners, and cleaning the surface. At the same time, through the methods of primer coating and leveling treatment, a good base condition is provided for pasting the carbon fiber cloth, which can effectively enhance the reinforcement effect of concrete. Summary of the invention
[0005] In order to overcome the existing detection and reinforcement analysis methods of damaged concrete structures reinforced with carbon fiber cloth, they usually rely on the experience and intuitive judgment of engineers to roughly evaluate and locate the damage. Insufficient attention may be paid to the base treatment, which can easily lead to poor concrete reinforcement effects.
[0006] The technical solution of the present invention is: a method for detecting and analyzing the reinforcement of damaged concrete structures using carbon fiber cloth, comprising the following steps:
[0007] S11: First, detect and evaluate the damage of the concrete structure;
[0008] S12: Testing the strength of concrete to assess the degree of concrete strength satisfaction;
[0009] S13: Performing base treatment on the concrete to ensure the cleanliness of the concrete surface;
[0010] S14: Apply primer to concrete;
[0011] S15: leveling the concrete;
[0012] S16: cutting and pasting the carbon fiber cloth required for reinforcement according to the damage of the concrete;
[0013] S17: Applying a surface impregnation adhesive to the surface of the carbon fiber cloth;
[0014] S18: Protect and maintain the reinforced concrete surface;
[0015] S19: Evaluate the final reinforced concrete to confirm that it is of satisfactory quality.
[0016] Preferably, when performing damage detection and assessment on concrete, the following steps are included:
[0017] S21: Perform visual inspection on the damaged concrete structure and record damage such as cracks, spalling, and rust; S22: Use professional equipment to quantitatively measure the damage and assess the extent and scope of the damage;
[0018] S23: Based on the test results, the safety of the concrete structure is evaluated to determine whether reinforcement is required. Preferably, when testing the concrete strength, the following steps are included:
[0019] S31: Use the rebound method or core sampling method to test the strength of concrete;
[0020] S32: Test the rebound hammer or the drilled core sample to obtain the actual strength data of the concrete;
[0021] S33: Compare the test data with the concrete design strength to evaluate the degree of satisfaction of the concrete strength. Preferably, when performing base treatment on the concrete, the following steps are included:
[0022] S41: Remove dirt, oil, loose layers, etc. from the concrete surface to expose the dense structure;
[0023] S42: Grind the edges and corners to form a smooth transition and avoid stress concentration;
[0024] S43: Use a hair dryer, acetone or other tools to clean the concrete surface to ensure that the surface is dry and dust-free. Preferably, when applying the primer to the concrete reinforcement coating, the following steps are included:
[0025] S51: Weigh component A and component B of the primer according to a specified ratio, put them into a container and stir them evenly;
[0026] S52: Use a special roller to evenly apply the primer to the concrete surface, ensuring that there are no missed spots or bubbles;
[0027] S53: After the base glue is dry to the touch, proceed to the next step.
[0028] Preferably, when leveling concrete, the following steps are included:
[0029] S61: Use leveling glue to fill the concave parts of the concrete surface to ensure the surface is flat;
[0030] S62: Leveling the inner corners, step differences and other parts to make them smooth;
[0031] S63: After applying the leveling glue, use sandpaper to smooth it out to ensure there are no bumps or rough lines.
[0032] Preferably, when cutting and pasting the carbon fiber cloth used for reinforcing concrete, the following steps are included:
[0033] S71: cutting the carbon fiber cloth to a required size according to the reinforcement design requirements;
[0034] S72: Evenly stick the carbon fiber cloth on the concrete surface coated with primer, ensuring that it is tightly stuck without hollows;
[0035] S73: Use a degassing roller to roll along the fiber direction to make the carbon fiber cloth completely immersed in the adhesive.
[0036] Preferably, when applying the surface layer impregnated glue, the following steps are included:
[0037] S81: After the carbon fiber cloth is pasted, apply the surface impregnation glue to fix the carbon fiber cloth;
[0038] S82: Ensure that the paint is applied evenly without any omissions;
[0039] S83: After the surface impregnation glue is dried, proceed to the next process.
[0040] Preferably, the protection and maintenance of the reinforced concrete surface includes the following steps:
[0041] S91: Plaster the reinforced concrete surface to increase durability;
[0042] S92: Spray fire retardant coating or cement or other covering materials on the surface of carbon fiber cloth to meet fire protection requirements;
[0043] S93: Maintain the reinforced parts to ensure the reinforcement effect.
[0044] Preferably, when testing and accepting the reinforcement effect of reinforced concrete, the following steps are included:
[0045] S1001: Use professional equipment to test the reinforced concrete structure and evaluate the reinforcement effect;
[0046] S1002: Check the bonding quality between the carbon fiber cloth and the concrete to ensure that the total effective bonding area is not less than 95% of the total bonding area;
[0047] S1003: Perform an appearance inspection on the reinforced parts to ensure that there are no quality problems such as damage and hollowing;
[0048] S1004: Fill out the acceptance report based on the test results to confirm that the reinforcement project is qualified.
[0049] Preferably, impurities such as grease, dust, etc. on the concrete surface can be removed by cleaning the dirt, which will affect the bonding effect between the carbon fiber cloth and the concrete. Grinding the edges can form a smooth transition to avoid stress concentration, while increasing the contact area between the carbon fiber cloth and the concrete surface, thereby improving the bonding strength. Cleaning the surface can ensure that the concrete surface is clean and dust-free, providing a good foundation for subsequent primer coating and carbon fiber cloth pasting, ensuring that the carbon fiber cloth can be tightly adhered to the concrete surface, avoiding problems such as hollowing and falling off, effectively ensuring that the carbon fiber cloth transfers stress and improves the reinforcement effect.
[0050] Beneficial effects of the present invention:
[0051] 1. Compared with the traditional carbon fiber cloth reinforcement damaged concrete structure detection and reinforcement analysis method, which usually relies on the experience and intuitive judgment of engineers to roughly evaluate and locate the damage, the emphasis on the base treatment may be insufficient, which may easily lead to poor concrete reinforcement effect. The carbon fiber cloth reinforcement damaged concrete structure detection and reinforcement analysis method ensures that the preparation work before pasting the carbon fiber cloth is sufficient and standardized through multiple processes such as removing dirt, grinding edges and corners, and cleaning the surface. At the same time, through the method of primer brushing and leveling treatment, a good base condition is provided for pasting the carbon fiber cloth, which can effectively enhance the reinforcement effect of concrete;
[0052] 2. By removing dirt, you can remove grease, dust and other impurities on the concrete surface. These impurities will affect the bonding effect between the carbon fiber cloth and the concrete. Grinding the edges can form a smooth transition to avoid stress concentration. At the same time, it increases the contact area between the carbon fiber cloth and the concrete surface, thereby improving the bonding strength. Cleaning the surface can ensure that the concrete surface is clean and dust-free, providing a good foundation for subsequent primer coating and carbon fiber cloth pasting. It can ensure that the carbon fiber cloth can be tightly adhered to the concrete surface to avoid problems such as hollowing and falling off, effectively ensuring that the carbon fiber cloth transfers stress and improves the reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0053] Figure 1 Shown is a schematic flow chart of the method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth of the present invention;
[0054] Figure 2 Shown is a schematic diagram of concrete damage assessment process of the carbon fiber cloth reinforced damaged concrete structure detection and reinforcement analysis method of the present invention;
[0055] Figure 3 Shown is a schematic diagram of the concrete strength detection process of the carbon fiber cloth reinforced damaged concrete structure detection and reinforcement analysis method of the present invention;
[0056] Figure 4 Shown is a schematic diagram of the concrete base processing process of the carbon fiber cloth reinforced damaged concrete structure detection and reinforcement analysis method of the present invention. DETAILED DESCRIPTION
[0057] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0058] See also Figure 1-4 The present invention provides an embodiment: a method for detecting and analyzing a damaged concrete structure reinforced with carbon fiber cloth, comprising the following steps:
[0059] S11: First, detect and evaluate the damage of the concrete structure;
[0060] S12: Testing the strength of concrete to assess the degree of concrete strength satisfaction;
[0061] S13: Performing base treatment on the concrete to ensure the cleanliness of the concrete surface;
[0062] S14: Apply primer to concrete;
[0063] S15: leveling the concrete;
[0064] S16: cutting and pasting the carbon fiber cloth required for reinforcement according to the damage of the concrete;
[0065] S17: Applying a surface impregnation adhesive to the surface of the carbon fiber cloth;
[0066] S18: Protect and maintain the reinforced concrete surface;
[0067] S19: Evaluate the final reinforced concrete to confirm that it is of satisfactory quality.
[0068] Preferably, when performing damage detection and assessment on concrete, the following steps are included:
[0069] S21: Perform visual inspection on the damaged concrete structure and record damage such as cracks, spalling, and rust;
[0070] S22: Use professional equipment to quantify the damage and assess the extent and scope of the damage;
[0071] S23: Based on the test results, evaluate the safety of the concrete structure and determine whether reinforcement is required.
[0072] Preferably, when testing the concrete strength, the following steps are included:
[0073] S31: Use the rebound method or core sampling method to test the strength of concrete;
[0074] S32: Test the rebound hammer or the drilled core sample to obtain the actual strength data of the concrete;
[0075] S33: Compare the test data with the concrete design strength to evaluate the degree to which the concrete strength meets the requirements.
[0076] Preferably, when the concrete is subjected to substrate treatment, the following steps are included:
[0077] S41: Remove dirt, oil, loose layers, etc. from the concrete surface to expose the dense structure;
[0078] S42: Grind the edges and corners to form a smooth transition and avoid stress concentration;
[0079] S43: Use a hair dryer, acetone or other tools to clean the concrete surface and ensure that the surface is dry and dust-free.
[0080] Preferably, when applying primer to the concrete reinforcement coating, the following steps are included:
[0081] S51: Weigh component A and component B of the primer according to a specified ratio, put them into a container and stir them evenly;
[0082] S52: Use a special roller to evenly apply the primer to the concrete surface, ensuring that there are no missed spots or bubbles;
[0083] S53: After the base glue is dry to the touch, proceed to the next step.
[0084] Preferably, when leveling concrete, the following steps are included:
[0085] S61: Use leveling glue to fill the concave parts of the concrete surface to ensure the surface is flat;
[0086] S62: Leveling the inner corners, step differences and other parts to make them smooth;
[0087] S63: After applying the leveling glue, use sandpaper to smooth it out to ensure there are no bumps or rough lines.
[0088] Preferably, when cutting and pasting the carbon fiber cloth used for reinforcing concrete, the following steps are included:
[0089] S71: cutting the carbon fiber cloth to a required size according to the reinforcement design requirements;
[0090] S72: Evenly stick the carbon fiber cloth on the concrete surface coated with primer, ensuring that it is tightly stuck without hollows;
[0091] S73: Use a degassing roller to roll along the fiber direction to make the carbon fiber cloth completely immersed in the adhesive.
[0092] Preferably, when applying the surface layer impregnated glue, the following steps are included:
[0093] S81: After the carbon fiber cloth is pasted, apply the surface impregnation glue to fix the carbon fiber cloth;
[0094] S82: Ensure that the paint is applied evenly without any omissions;
[0095] S83: After the surface impregnation glue is dried, proceed to the next process.
[0096] Preferably, the protection and maintenance of the reinforced concrete surface includes the following steps:
[0097] S91: Plaster the reinforced concrete surface to increase durability;
[0098] S92: Spray fire retardant coating or cement or other covering materials on the surface of carbon fiber cloth to meet fire protection requirements;
[0099] S93: Maintain the reinforced parts to ensure the reinforcement effect.
[0100] Preferably, when testing and accepting the reinforcement effect of reinforced concrete, the following steps are included:
[0101] S1001: Use professional equipment to test the reinforced concrete structure and evaluate the reinforcement effect;
[0102] S1002: Check the bonding quality between the carbon fiber cloth and the concrete to ensure that the total effective bonding area is not less than 95% of the total bonding area;
[0103] S1003: Perform an appearance inspection on the reinforced parts to ensure that there are no quality problems such as damage and hollowing;
[0104] S1004: Fill out the acceptance report based on the test results to confirm that the reinforcement project is qualified.
[0105] Preferably, impurities such as grease, dust, etc. on the concrete surface can be removed by cleaning the dirt, which will affect the bonding effect between the carbon fiber cloth and the concrete. Grinding the edges can form a smooth transition to avoid stress concentration, while increasing the contact area between the carbon fiber cloth and the concrete surface, thereby improving the bonding strength. Cleaning the surface can ensure that the concrete surface is clean and dust-free, providing a good foundation for subsequent primer coating and carbon fiber cloth pasting, ensuring that the carbon fiber cloth can be tightly adhered to the concrete surface, avoiding problems such as hollowing and falling off, effectively ensuring that the carbon fiber cloth transfers stress and improves the reinforcement effect.
[0106] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.
Claims
1. Detection and reinforcement analysis method of damaged concrete structure reinforced with carbon fiber cloth; it is characterized by: The following steps are included: S11: First, detect and evaluate the damage of the concrete structure; S12: Testing the strength of concrete to assess the degree of concrete strength satisfaction; S13: Performing base treatment on the concrete to ensure the cleanliness of the concrete surface; S14: Apply primer to concrete; S15: leveling the concrete; S16: cutting and pasting the carbon fiber cloth required for reinforcement according to the damage of the concrete; S17: Applying a surface impregnation adhesive to the surface of the carbon fiber cloth; S18: Protect and maintain the reinforced concrete surface; S19: Evaluate the final reinforced concrete to confirm that it is of satisfactory quality.
2. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 1 is characterized in that: When conducting damage detection and assessment of concrete, the following steps are included: S21: Perform visual inspection on the damaged concrete structure and record damage such as cracks, spalling, and rust; S22: Use professional equipment to quantify the damage and assess the extent and scope of the damage; S23: Based on the test results, evaluate the safety of the concrete structure and determine whether reinforcement is required.
3. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 2 is characterized in that: When testing the strength of concrete, the following steps are included: S31: Use the rebound method or core sampling method to test the strength of concrete; S32: Test the rebound hammer or the drilled core sample to obtain the actual strength data of the concrete; S33: Compare the test data with the concrete design strength to evaluate the degree to which the concrete strength meets the requirements.
4. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 3 is characterized in that: When performing base preparation on concrete, the following steps are included: S41: Remove dirt, oil, loose layers, etc. from the concrete surface to expose the dense structure; S42: Grind the edges and corners to form a smooth transition and avoid stress concentration; S43: Use a hair dryer, acetone or other tools to clean the concrete surface and ensure that the surface is dry and dust-free.
5. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 4 is characterized in that: When applying primer to concrete reinforcement coating, the following steps are included: S51: Weigh component A and component B of the primer according to a specified ratio, put them into a container and stir them evenly; S52: Use a special roller to evenly apply the primer to the concrete surface, ensuring that there are no missed spots or bubbles; S53: After the base glue is dry to the touch, proceed to the next step.
6. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 5 is characterized in that: When leveling concrete, the following steps are included: S61: Use leveling glue to fill the concave parts of the concrete surface to ensure the surface is flat; S62: Leveling the inner corners, step differences and other parts to make them smooth; S63: After applying the leveling glue, use sandpaper to smooth it out to ensure there are no bumps or rough lines.
7. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 6 is characterized in that: When cutting and pasting the carbon fiber cloth used to reinforce concrete, the following steps are included: S71: cutting the carbon fiber cloth to a required size according to the reinforcement design requirements; S72: Evenly stick the carbon fiber cloth on the concrete surface coated with primer, ensuring that it is tightly stuck without hollows; S73: Use a degassing roller to roll along the fiber direction to make the carbon fiber cloth completely immersed in the adhesive.
8. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 7 is characterized in that: When applying the surface impregnated glue, the following steps are included: S81: After the carbon fiber cloth is pasted, apply the surface impregnation glue to fix the carbon fiber cloth; S82: Ensure that the paint is applied evenly without any omissions; S83: After the surface impregnation glue is dried, proceed to the next process.
9. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 8, characterized in that: The protection and maintenance of the reinforced concrete surface includes the following steps: S91: Plaster the reinforced concrete surface to increase durability; S92: Spray fire retardant coating or cement or other covering materials on the surface of carbon fiber cloth to meet fire protection requirements; S93: Maintain the reinforced parts to ensure the reinforcement effect.
10. The method for detecting and analyzing the damaged concrete structure reinforced with carbon fiber cloth according to claim 9, characterized in that: When testing and accepting the reinforcement effect of reinforced concrete, the following steps are included: S1001: Use professional equipment to test the reinforced concrete structure and evaluate the reinforcement effect; S1002: Check the bonding quality between the carbon fiber cloth and the concrete to ensure that the total effective bonding area is not less than 95% of the total bonding area; S1003: Perform an appearance inspection on the reinforced parts to ensure that there are no quality problems such as damage and hollowing; S1004: Fill out the acceptance report based on the test results to confirm that the reinforcement project is qualified.