A method for controlling cracks in high-durability concrete
By combining a mixing and crushing device with engineering structure analysis and defoaming treatment, the durability problem of the concrete forming stage was solved, and the crack resistance and service life of the concrete were improved.
Patent Information
- Application Number
- CN202310284754.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-22
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2043-03-22
AI Technical Summary
Existing concrete crack control methods lack durability during the forming stage, resulting in imperfect material mixing and the presence of large bubbles, which affects the service life.
A mixing and breaking device is used to mix and break the concrete materials, combined with polycarboxylic acid, air entraining agent and defoaming agent for defoaming. The components are disassembled through engineering structure stress analysis, samples are prepared and targeted maintenance is implemented, and finally concrete strengthener is added.
It improves the viscosity and crack resistance of concrete, avoids cracking caused by large bubbles, and ensures the high durability and service life of concrete components.
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Figure CN116408880B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of concrete crack control methods, and in particular to a high-durability concrete crack control method. Background Art
[0002] The concrete crack control method is a method of controlling surface cracks by controlling the concrete rebound strength, anti-penetration and other methods through material selection and maintenance control to ensure its service life. In the actual implementation of construction projects, the required concrete rebound strength data are different, and the forming and curing cycles of concrete components are long. The existing concrete crack control method often only controls the surface during the forming stage, and its control effect lacks durability. In addition, no relevant settings are made in the material preparation stage, resulting in incomplete mixing and crushing of the material, or large bubbles in the interior during transportation, which can easily cause cracks on the concrete surface and affect its service life. Improvements are needed. Summary of the Invention
[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a high-durability concrete crack control method.
[0004] In order to achieve the above object, the present invention adopts the following technical solution: a method for controlling cracks in high-durability concrete, comprising the following steps:
[0005] S1: Mixing and crushing of concrete materials;
[0006] S2: Defoaming pretreatment of concrete materials;
[0007] S3: Engineering structure stress analysis, and splitting concrete components based on engineering structure stress analysis;
[0008] S4: Prepare samples based on the size and structure information of individual concrete components;
[0009] S5: stage of preparation of finished concrete components;
[0010] S6: Add concrete surface enhancer.
[0011] As a further solution of the present invention, in S1, the concrete material is mixed and crushed using a mixing and crushing device, which includes an external frame and an internal processing mechanism. The external frame includes a chassis, and columns are circumferentially and equidistantly installed on the upper surface of the chassis. The top of the column is equipped with a lower frame, and the upper surface of the lower frame is equipped with an upper frame. The inner side of the lower frame is equipped with a center disk, and the inner sides of the center disk and the lower frame are both set as inclined surfaces. A discharge pipe is installed on the side of the bottom end of the center disk, and the bottom end of the discharge pipe is equipped with an electric control valve.
[0012] As a further solution of the present invention, the internal processing mechanism includes a drive motor and a feed pipe. The drive motor is fixedly installed at the center position of the upper surface of the chassis, and the feed pipe is fixedly installed on the top of the upper frame. One end of the feed pipe passes through the inner side of the upper frame.
[0013] As a further solution of the present invention, the output end of the driving motor is equipped with a coupling, the top of the coupling is equipped with a ring gear, the outer surface of the ring gear is circumferentially equipped with an extension arm, the inner side of the extension arm is equipped with a lower stirring blade, the upper surface of the extension arm is rotatably connected to the adjusting shaft, the outer surface of the adjusting shaft is fixedly equipped with an upper stirring blade, the bottom outer surface of the feeding pipe is equipped with a connecting frame, the bottom end of the connecting frame is equipped with a sealing plate, the sealing plate is fitted with the upper surface of the ring gear, the lower surface of the sealing plate is rotatably connected to a gear set, the gear set includes a primary gear, a secondary gear and a center gear, the primary gear is meshed with the ring gear, the secondary gear is meshed with the primary gear and the center gear, the inner side of the sealing plate is rotatably connected to the center shaft, the center shaft is fixedly connected to the center gear, and the top outer surface of the center shaft is fixedly equipped with a knife group.
[0014] As a further solution of the present invention, in S1, the step of mixing and crushing the concrete material is specifically as follows:
[0015] S110: Aggregates, sand and other concrete preparation raw materials are transported to the interior of the upper frame through the feed pipe, and fall onto the surface of the lower frame. Through the inclined design of the lower frame and the center plate, they converge to the center position;
[0016] S120: Start the drive motor, which drives the gear ring to rotate through the coupling. At this time, the extension arm and the lower mixing blades also rotate accordingly. The adjustment shaft rotates in a circular direction along with the extension arm. The upper mixing blades rub against the concrete preparation raw materials to generate resistance, and then simultaneously with the lower mixing blades, they generate driving force for the concrete preparation raw materials, thereby performing a complete mixing operation.
[0017] S130: The ring gear rotates, driving the gear set to operate. The first gear and the second gear sequentially drive the central gear, which in turn drives the central shaft and the blade set to rotate and break the concrete. The power generated by the breaking drives the concrete preparation raw materials outward. In conjunction with step S120, a cyclic mixing and breaking process is performed to improve the execution level.
[0018] S140: After the processing is completed, the electric control valve is started to discharge the material, and the operation of the internal processing mechanism is coordinated to improve the perfection of the discharge work.
[0019] As a further solution of the present invention, in S2, the concrete material defoaming pretreatment step is specifically as follows:
[0020] S210: In S110, the concrete preparation raw materials such as aggregate and sand are transported to the internal stage of the upper frame through the feeding pipe, and 10% concentration of polycarboxylic acid is added according to the ratio of 5 to 20 kg / ton;
[0021] S220: For highly fluid concrete, use in combination with air entraining agent and defoamer;
[0022] S230: After the S140 treatment is completed, the concrete is left to stand for 30 minutes. At this time, the large bubbles inside the concrete material are fully discharged, and the air entraining agent introduces small bubble molecules.
[0023] As a further solution of the present invention, in S3, the engineering structure force analysis includes structural mechanics calculations, wherein the structural mechanics calculations include but are not limited to axial force, shear force, bending moment, torque, linear displacement, and angular displacement calculations. The steps of splitting the concrete component based on the engineering structure force analysis are specifically as follows:
[0024] S310: Import engineering structure model;
[0025] S320: extracting characteristic elements from the engineering structure model and performing modular processing;
[0026] S330: Extract the dynamic response of concrete components under dynamic loads based on factors such as size elements and load-bearing area.
[0027] S340: Obtain the size and structure information of the single concrete component.
[0028] As a further solution of the present invention, in S4, the step of preparing the sample is specifically as follows:
[0029] S410: Establish a cracking risk assessment model and collect risk data in the following steps;
[0030] S420: Creating sample data of an appropriate number of groups corresponding to the size and structural information of the single concrete component;
[0031] S430: During the curing process, cover curing and heating curing are implemented for the sample data in a 1:1 ratio;
[0032] S440: In the case of covering curing and heating curing, extracting temperature difference data and time period data for difference value;
[0033] S450: combining the sample data results from S430 to S440, importing a cracking risk assessment model to obtain the curing method that should be adopted during the prefabrication process of the single concrete component and the specific curing temperature based on the time period data;
[0034] The risk data collected specifically refers to the cracking risk coefficient of the prefabricated concrete components during the prefabrication process.
[0035] As a further solution of the present invention, in S5, the steps of the finished concrete component preparation stage are specifically as follows:
[0036] S510: Introducing supporting keels and other strengthening support structures;
[0037] S520: Prefabricate concrete components based on the size and structural information of the single concrete component obtained in S3;
[0038] S530: During the prefabrication process of the concrete component, curing is performed based on the curing method obtained in step S4;
[0039] S540: Monitoring the surface temperature data of the concrete component based on the distributed infrared sensor, and comparing the temperature data with the specific curing temperature based on the time period data obtained in step S4;
[0040] S550: heating the area with insufficient temperature in each module, stopping the heating treatment of the area with temperature close to the cracking threshold or performing water spraying temperature control treatment.
[0041] As a further solution of the present invention, in S6, the step of adding a concrete surface enhancer is specifically:
[0042] S610: Based on the scenario data of the engineering structure model, a judgment is made. If the rebound strength of the concrete component is low, the next step is executed.
[0043] S620: Use GWZ820 concrete enhancer, stir evenly, and repeatedly apply it to the surface of the concrete component until the surface is completely penetrated. Wait 5 to 6 hours for it to dry and absorb fully.
[0044] S630: Repeat step S620 twice or more.
[0045] Compared with the prior art, the advantages and positive effects of the present invention are:
[0046] In the present invention, during the concrete material preparation cycle, the mixing and crushing process is performed simultaneously by the mixing and crushing device, and the concrete preparation raw materials are driven outward by the power generated by the crushing, and the concrete preparation raw materials are driven inward by the operation of the upper mixing blade and the lower mixing blade, thereby achieving the effect of cyclic mixing and crushing, improving the perfection of the crushing and mixing work. In the process, polycarboxylic acid is introduced to increase its viscosity, and air entraining agents and defoaming agents are introduced to achieve the effect of expelling large bubbles and introducing small bubble molecules, thereby avoiding cracking caused by large bubbles, retaining small bubbles to ensure their prestressed space, and then splitting the concrete components through engineering structure stress analysis. Based on the sample preparation, the curing method to be adopted in the prefabrication process of the single concrete component and the specific curing temperature based on the time period data are obtained. In the actual curing stage, curing is implemented according to the judgment result to avoid cracking caused by improper curing treatment. In the later stage, the rebound strength is further improved by adding concrete reinforcing agents, providing all-round protection for its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0047] Figure 1 A schematic diagram of the main steps of a high-durability concrete crack control method proposed by the present invention;
[0048] Figure 2 A schematic diagram of the structure of a mixing and breaking device for a high-durability concrete crack control method proposed in the present invention;
[0049] Figure 3 Schematic diagram of the explosion of the external frame of the method for controlling cracks in high-durability concrete proposed by the present invention;
[0050] Figure 4 A schematic diagram of the internal processing mechanism of a high-durability concrete crack control method proposed by the present invention;
[0051] Figure 5 This is an exploded diagram of the internal processing mechanism of a high-durability concrete crack control method proposed by the present invention;
[0052] Figure 6 A detailed schematic diagram of step 1 of a high-durability concrete crack control method proposed in the present invention;
[0053] Figure 7 A detailed schematic diagram of step 2 of a high-durability concrete crack control method proposed in the present invention;
[0054] Figure 8 A detailed schematic diagram of step 3 of a high-durability concrete crack control method proposed in the present invention;
[0055] Figure 9 A detailed schematic diagram of step 4 of a high-durability concrete crack control method proposed in the present invention;
[0056] Figure 10 A detailed schematic diagram of step 5 of a high-durability concrete crack control method proposed in the present invention;
[0057] Figure 11 The present invention proposes a detailed schematic diagram of step 6 of a method for controlling cracks in high-durability concrete.
[0058] In the figure: 1, external frame; 101, chassis; 102, column; 103, lower frame; 104, upper frame; 105, center plate; 106, electric control valve;
[0059] 2. Internal processing mechanism; 201. Drive motor; 202. Coupling; 203. Ring gear; 204. Extension arm; 205. Lower stirring blade; 206. Adjustment shaft; 207. Upper stirring blade; 208. Feed pipe; 209. Connecting frame; 210. Sealing plate; 211. Gear set; 212. Knife set. DETAILED DESCRIPTION
[0060] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0061] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.
[0062] Example 1
[0063] See also Figure 1 The present invention provides a technical solution: a method for controlling cracks in high-durability concrete, comprising the following steps:
[0064] S1: Mixing and crushing of concrete materials;
[0065] S2: Defoaming pretreatment of concrete materials;
[0066] S3: Engineering structure stress analysis, and splitting concrete components based on engineering structure stress analysis;
[0067] S4: Prepare samples based on the size and structure information of individual concrete components;
[0068] S5: stage of preparation of finished concrete components;
[0069] S6: Add concrete surface enhancer.
[0070] During the concrete material preparation cycle, the mixing and crushing device simultaneously performs mixing and crushing processes, and the power generated by crushing drives the concrete raw materials outward. The operation of the upper mixing blade 207 and the lower mixing blade 205 drives the concrete raw materials inward, achieving the effect of cyclic mixing and crushing, improving the completeness of the crushing and mixing work. In the process, polycarboxylic acid is introduced to increase its viscosity. Air entraining agents and defoaming agents are introduced to achieve the effect of expelling large bubbles and introducing small bubble molecules, avoiding cracking caused by large bubbles. Small bubbles are retained to ensure their prestressed space. Then, the concrete components are decomposed through engineering structure stress analysis. Based on the sample preparation, the curing method to be adopted during the prefabrication of the individual concrete components and the specific curing temperature based on the time period data are obtained. In the actual curing stage, curing is implemented based on the judgment results to avoid cracking caused by improper curing treatment. In the later stage, the rebound strength is further improved by adding concrete reinforcing agents, providing comprehensive protection for its service life.
[0071] See also Figures 2 to 5 In S1, the concrete material is mixed and crushed by a mixing and crushing device, which includes an external frame 1 and an internal processing mechanism.
[0072] 2. The external frame 1 includes a chassis 101. Columns 102 are equidistantly installed on the upper surface of the chassis 101. A lower frame 103 is installed on the top of the column 102. An upper frame 104 is installed on the upper surface of the lower frame 103. A center disk 105 is installed on the inner side of the lower frame 103. The inner sides of the center disk 105 and the lower frame 103 are both inclined. A discharge pipe is installed on the side of the bottom end of the center disk 105. The bottom end of the discharge pipe is equipped with an electric control valve 106. The internal processing mechanism
[0073] 2 includes a driving motor 201 and a feeding pipe 208. The driving motor 201 is fixedly mounted at the center of the upper surface of the chassis 101. The feeding pipe 208 is fixedly mounted on the top of the upper frame 104. One end of the feeding pipe 208 passes through the inner side of the upper frame 104. The output end of the driving motor 201 is equipped with a coupling 202. The top of the coupling 202 is equipped with a gear ring 203. The outer surface of the gear ring 203 is circumferentially equipped with an extension arm 204. The inner side of the extension arm 204 is equipped with a lower stirring blade 205. The upper surface of the extension arm 204 is rotatably connected to the adjusting shaft 206. The outer surface of the adjusting shaft 206 is fixed. An upper stirring blade 207 is installed, and a connecting frame 209 is installed on the outer surface of the bottom end of the feed pipe 208. A sealing plate 210 is installed on the bottom end of the connecting frame 209. The sealing plate 210 is in contact with the upper surface of the ring gear 203. The lower surface of the sealing plate 210 is rotatably connected to a gear set 211. The gear set 211 includes a first-stage gear, a second-stage gear and a center gear. The first-stage gear is meshed with the ring gear 203, and the second-stage gear is meshed with the first-stage gear and the center gear. The inner side of the sealing plate 210 is rotatably connected to a center shaft, and the center shaft is fixedly connected to the center gear. A knife group 212 is fixedly installed on the outer surface of the top end of the center shaft.
[0074] See also Figure 6 In S1, the concrete material mixing and crushing process is specifically as follows:
[0075] S110: Aggregates, sand and other concrete making raw materials are transported to the interior of the upper frame 104 through the feed pipe 208 and fall onto the surface of the lower frame 103. The materials are then gathered toward the center through the inclined design of the lower frame 103 and the center plate 105.
[0076] S120: The drive motor 201 is started, and the gear ring 203 is driven to rotate via the coupling 202. At this time, the extension arm 204 and the lower stirring blade 205 also rotate accordingly. The adjustment shaft 206 rotates in a circular direction along with the extension arm 204. The upper stirring blade 207 frictionally generates resistance with the concrete preparation raw materials, and then simultaneously generates driving force for the concrete preparation raw materials together with the lower stirring blade 205, thereby performing a perfect mixing operation.
[0077] S130: The ring gear 203 rotates, driving the gear set 211 to operate. The primary gear and the secondary gear sequentially drive the central gear, which in turn drives the central shaft and the blade set 212 to rotate and break the concrete. The power generated by the breaking drives the concrete preparation raw materials outward. In conjunction with step S120, a cyclic mixing and breaking process is performed to improve the execution level.
[0078] S140: After the processing is completed, start the electric control valve 106 to discharge the material and cooperate with the internal processing mechanism
[0079] 2. The operation improves the perfection of the discharging work.
[0080] See also Figure 7 In S2, the concrete material defoaming pretreatment steps are specifically as follows:
[0081] S210: In S110, the concrete preparation raw materials such as aggregate and sand are transported to the interior of the upper frame 104 through the feed pipe 208, and 10% concentration of polycarboxylic acid is added at a ratio of 5-20 kg / ton;
[0082] S220: For highly fluid concrete, use in combination with air entraining agent and defoamer;
[0083] S230: After the S140 treatment is completed, the concrete is left to stand for 30 minutes. At this time, the large bubbles inside the concrete material are fully discharged, and the air entraining agent introduces small bubble molecules.
[0084] See also Figure 8 In S3, the engineering structure stress analysis includes structural mechanics calculations, which include but are not limited to axial force, shear force, bending moment, torque, linear displacement, and angular displacement calculations. The steps for splitting concrete components based on the engineering structure stress analysis are as follows:
[0085] S310: Import engineering structure model;
[0086] S320: extracting characteristic elements from the engineering structure model and performing modular processing;
[0087] S330: Extract the dynamic response of concrete components under dynamic loads based on factors such as size elements and load-bearing area.
[0088] S340: Obtain the size and structure information of the single concrete component.
[0089] See also Figure 9 In S4, the steps for preparing the sample are as follows:
[0090] S410: Establish a cracking risk assessment model and collect risk data in the following steps;
[0091] S420: Creating sample data of an appropriate number of groups corresponding to the size and structural information of the single concrete component;
[0092] S430: During the curing process, cover curing and heating curing are implemented for the sample data in a 1:1 ratio;
[0093] S440: In the case of covering curing and heating curing, extracting temperature difference data and time period data for difference value;
[0094] S450: combining the sample data results from S430 to S440, importing a cracking risk assessment model to obtain the curing method that should be adopted during the prefabrication process of the single concrete component and the specific curing temperature based on the time period data;
[0095] Among them, risk data collection specifically refers to the cracking risk coefficient of prefabricated concrete components during the prefabrication process.
[0096] See also Figure 10 In S5, the steps of the finished concrete component preparation stage are as follows:
[0097] S510: Introducing supporting keels and other strengthening support structures;
[0098] S520: Prefabricate concrete components based on the size and structural information of the single concrete component obtained in S3;
[0099] S530: During the prefabrication process of the concrete component, curing is performed based on the curing method obtained in step S4;
[0100] S540: Monitoring the surface temperature data of the concrete component based on the distributed infrared sensor, and comparing the temperature data with the specific curing temperature based on the time period data obtained in step S4;
[0101] S550: heating the area with insufficient temperature in each module, stopping the heating treatment of the area with temperature close to the cracking threshold or performing water spraying temperature control treatment.
[0102] See also Figure 11 In S6, the step of adding a concrete surface enhancer is specifically as follows:
[0103] S610: Based on the scenario data of the engineering structure model, a judgment is made. If the rebound strength of the concrete component is low, the next step is executed.
[0104] S620: Use GWZ820 concrete enhancer, stir evenly, and repeatedly apply it to the surface of the concrete component until the surface is completely penetrated. Wait 5 to 6 hours for it to dry and absorb fully.
[0105] S630: Repeat step S620 twice or more.
[0106] Working principle: The mixing and crushing device is used to mix and crush the concrete materials (the aggregate, sand and other concrete preparation raw materials are transported to the interior of the upper frame 104 through the feed pipe 208, and fall on the surface of the lower frame 103. Through the inclined design of the lower frame 103 and the center disk 105, they converge to the center position, start the drive motor 201, and drive the gear ring 203 to rotate through the coupling 202. At this time, the extension arm 204 and the lower stirring blade 205 also rotate accordingly, and the adjustment shaft 206 rotates in a circular direction with the extension arm 204. The upper stirring blade 207 rubs against the concrete preparation raw materials. The friction generates resistance, and then generates driving force for the concrete preparation raw materials at the same time as the lower stirring blade 205, and performs perfect mixing work. When the ring gear 203 rotates, it drives the gear group 211 to operate, and the first gear and the second gear drive the central gear in turn, and then drives the central shaft and the knife group 212 to rotate for crushing. The power generated by the crushing drives the concrete preparation raw materials to the outside, and cooperates with the S120 step to perform a cyclic mixing and crushing process to improve its execution perfection. After the process is completed, the electric control valve 106 is started to discharge the material, and cooperates with the internal processing mechanism
[0107] 2 operation, improve the perfection of discharging work); concrete material defoaming pretreatment (in S110, aggregate, sand and other concrete preparation raw materials are transported to the internal stage of the upper frame 104 through the feeding pipe 208, and 10% concentration of polycarboxylic acid is added at a ratio of 5 to 20 kg / ton. If it is a large flow concrete, it is used in combination with air entraining agent and defoaming agent. After the S140 treatment is completed, it is left to stand for 30 minutes. At this time, the large bubbles in the concrete material are fully discharged, and the air entraining agent introduces small bubble molecules); based on the calculation of axial force, shear force, bending moment, torque, linear displacement, and angular displacement, the engineering structure stress analysis is performed, and based on the engineering structure stress analysis Split concrete components (import the engineering structure model, extract characteristic elements from the engineering structure model, perform modular processing, extract the dynamic response of the concrete component under dynamic load based on factors such as size elements and load-bearing area in this module, and obtain the size and structural information of the individual concrete component); prepare samples based on the size and structural information of the individual concrete component (establish a cracking risk assessment model, and collect risk data in the following steps to establish sample data with the appropriate number of groups corresponding to the size and structural information of the individual concrete component. During the maintenance process, the sample data is maintained at a 1:1 ratio and covered. and heating curing. In the covering curing and heating curing, the temperature difference data and time period data are extracted for difference value. Combined with the sample data results from S430 to S440, the cracking risk assessment model is imported to obtain the curing method to be adopted in the prefabrication process of the single concrete component and the specific curing temperature based on the time period data); in the finished concrete component preparation stage (introducing strengthening support structures such as support keels, prefabricating concrete components based on the size and structural information of the single concrete component obtained in S3, and curing based on the curing method obtained in step S4 during the prefabrication of the concrete components. Based on distributed infrared sensors, the concrete is monitored. Component surface temperature data is collected, and based on this temperature data, it is compared with the specific curing temperature based on the time period data obtained in step S4. Areas with insufficient temperature are heated in a modular manner, and heating treatment is stopped or water spraying temperature control treatment is performed in areas where the temperature is close to the cracking threshold; a concrete surface enhancer is added (based on the scenario data of the engineering structure model, a judgment is made. If the rebound strength of the concrete component is low, the next step is to use GWZ820 concrete enhancer, stir it evenly, and repeatedly apply it to the surface of the concrete component until the surface is completely penetrated. Wait 5 to 6 hours for it to fully dry and absorb, and repeat step S620 twice or more).
[0108] The above are merely preferred embodiments of the present invention and do not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A method for controlling cracks in high-durability concrete, characterized in that: The following steps are involved: S1: Mixing and crushing of concrete materials; S2: Defoaming pretreatment of concrete materials; S3: Engineering structure stress analysis, and splitting concrete components based on engineering structure stress analysis; S4: Prepare samples based on the size and structure information of individual concrete components; The steps of preparing the sample are specifically as follows: S410: Establish a cracking risk assessment model and collect risk data in the following steps; S420: Creating sample data of an appropriate number of groups corresponding to the size and structural information of the single concrete component; S430: During the curing process, cover curing and heating curing are implemented for the sample data in a 1:1 ratio; S440: In the case of covering curing and heating curing, extracting temperature difference data and time period data for difference value; S450: combining the sample data results from S430 to S440, importing a cracking risk assessment model to obtain the curing method that should be adopted during the prefabrication process of the single concrete component and the specific curing temperature based on the time period data; The risk data collected specifically refers to the risk coefficient of cracking of prefabricated concrete components during the prefabrication process; S5: stage of preparation of finished concrete components; The steps in the concrete component finished product preparation stage are specifically as follows: S510: Introducing support keels to strengthen the supporting structure; S520: Prefabricate concrete components based on the size and structural information of the single concrete component obtained in S3; S530: During the prefabrication process of the concrete component, curing is performed based on the curing method obtained in step S4; S540: Monitoring the surface temperature data of the concrete component based on the distributed infrared sensor, and comparing the temperature data with the specific curing temperature based on the time period data obtained in step S4; S550: Heat the areas with insufficient temperature in each module, stop heating the areas with temperature close to the cracking threshold or perform water spraying to control temperature. S6: Add concrete surface enhancer.
2. The high-durability concrete crack control method according to claim 1, characterized in that: In the S1, the concrete material mixing and crushing treatment adopts a mixing and crushing device, the mixing and crushing device comprises an external frame (1) and an internal processing mechanism (2), the external frame (1) comprises a chassis (101), columns (102) are equidistantly installed on the upper surface of the chassis (101), a lower frame (103) is installed on the top of the columns (102), an upper frame (104) is installed on the upper surface of the lower frame (103), a center disk (105) is installed on the inner side of the lower frame (103), the inner sides of the center disk (105) and the lower frame (103) are both set as inclined surfaces, a discharge pipe is installed at the side position of the bottom end of the center disk (105), and an electric control valve (106) is installed at the bottom end of the discharge pipe.
3. The high-durability concrete crack control method according to claim 2, characterized in that: The internal processing mechanism (2) comprises a driving motor (201) and a feeding pipe (208), wherein the driving motor (201) is fixedly mounted at the center of the upper surface of the chassis (101), and the feeding pipe (208) is fixedly mounted on the top of the upper frame (104), with one end of the feeding pipe (208) passing through the inner side of the upper frame (104).
4. The high-durability concrete crack control method according to claim 3, characterized in that: The output end of the driving motor (201) is provided with a coupling (202), the top end of the coupling (202) is provided with a gear ring (203), the outer surface of the gear ring (203) is provided with an extension arm (204) in a circumferential direction, the inner side of the extension arm (204) is provided with a lower stirring blade (205), the upper surface of the extension arm (204) is rotatably connected to an adjustment shaft (206), the outer surface of the adjustment shaft (206) is fixedly provided with an upper stirring blade (207), the outer surface of the bottom end of the feeding pipe (208) is provided with a connecting frame (209), the connecting frame (20 9) is provided with a sealing disc (210) at the bottom end, the sealing disc (210) is fitted with the upper surface of the gear ring (203), the lower surface of the sealing disc (210) is rotatably connected to a gear set (211), the gear set (211) comprises a primary gear, a secondary gear and a central gear, the primary gear is meshed with the gear ring (203), the secondary gear is meshed with the primary gear and the central gear, the inner side of the sealing disc (210) is rotatably connected to a central shaft, the central shaft is fixedly connected to the central gear, and a knife set (212) is fixedly mounted on the outer surface of the top end of the central shaft.
5. The high-durability concrete crack control method according to claim 4, characterized in that: In S1, the concrete material mixing and crushing process is specifically as follows: S110: Aggregate and sand concrete preparation raw materials are transported to the interior of the upper frame (104) through the feed pipe (208), and fall onto the surface of the lower frame (103), and converge to the center position through the inclined design of the lower frame (103) and the center plate (105); S120: The driving motor (201) is started, and the gear ring (203) is driven to rotate through the coupling (202). At this time, the extension arm (204) and the lower stirring blade (205) also rotate accordingly. The adjustment shaft (206) rotates in a circular direction along with the extension arm (204). The upper stirring blade (207) generates resistance due to friction with the concrete preparation raw materials, and then generates driving force for the concrete preparation raw materials together with the lower stirring blade (205), thereby performing a perfect mixing operation. S130: The ring gear (203) rotates while driving the gear set (211) to operate, and the first gear and the second gear drive the central gear in sequence, thereby driving the central shaft and the knife set to rotate and perform a crushing process. The power generated by the crushing drives the concrete preparation raw materials outward, and cooperates with the step S120 to perform a cyclic mixing and crushing process, thereby improving its execution perfection; S140: After the processing is completed, the electric control valve (106) is started to discharge the material, and the operation of the internal processing mechanism (2) is coordinated to improve the perfection of the discharge work.
6. The high-durability concrete crack control method according to claim 5, characterized in that: In S2, the concrete material defoaming pretreatment step is specifically as follows: S210: In S110, the aggregate and sand concrete preparation raw materials are transported to the internal stage of the upper frame (104) through the feeding pipe (208), and 10% concentration of polycarboxylic acid is added according to the ratio of 5 to 20 kg / ton; S220: For highly fluid concrete, use in combination with air entraining agent and defoamer; S230: After the S140 treatment is completed, the concrete is left to stand for 30 minutes. At this time, the large bubbles inside the concrete material are fully discharged, and the air entraining agent introduces small bubble molecules.
7. The high-durability concrete crack control method according to claim 1, characterized in that: In S3, the engineering structure stress analysis includes structural mechanics calculations, wherein the structural mechanics calculations include axial force, shear force, bending moment, torque, linear displacement and angular displacement calculations. The steps of splitting the concrete component based on the engineering structure stress analysis are specifically as follows: S310: Import engineering structure model; S320: extracting characteristic elements from the engineering structure model and performing modular processing; S330: Extract the dynamic response of concrete components under dynamic loads based on size factors and load-bearing area factors. S340: Obtain the size and structure information of the single concrete component.
8. The high-durability concrete crack control method according to claim 1, characterized in that: In S6, the step of adding a concrete surface enhancer is specifically as follows: S610: Based on the scenario data of the engineering structure model, a judgment is made. If the rebound strength of the concrete component is low, the next step is executed. S620: Use GWZ820 concrete enhancer, stir evenly, and repeatedly apply it to the surface of the concrete component until the surface is completely penetrated. Wait 5 to 6 hours for it to dry and absorb fully. S630: Repeat step S620 twice or more.
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