Construction process of concrete floor structure and concrete floor structure

Abstract

The application discloses a construction process of a concrete floor structure and the concrete floor structure, and relates to the technical field of building construction. The construction process of the concrete floor structure comprises the following steps: pouring concrete into a plurality of first warehouse blocks to form first concrete blocks; waiting for the hydration heat peak value of the plurality of first concrete blocks to pass, and then pouring concrete into a plurality of second warehouse blocks to form second concrete blocks, wherein each second concrete block is arranged in connection with a plurality of adjacent first concrete blocks. In this way, the plurality of first concrete blocks and the plurality of second concrete blocks can be connected into a complete concrete floor structure, most of the temperature shrinkage stress is released, the structural integrity of the concrete floor structure is ensured, the risk of cracking of the large-area concrete floor structure after construction is effectively reduced, and the forming quality and structural stability of the concrete floor structure are improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a construction process and a concrete floor structure. Background Technology

[0002] During the construction of large-area concrete floor structures, the concrete hardening stage releases a large amount of heat of hydration, causing the internal temperature to rise. The temperature shrinkage stress generated during the cooling stage, as well as the shrinkage stress generated by the concrete's own drying shrinkage, can easily lead to irregular cracking of the concrete floor structure. This not only affects the appearance of the floor but also reduces the overall integrity and durability of the floor structure. In severe cases, it can even affect the normal use of the floor.

[0003] In existing large-area concrete floor construction, methods such as reserving expansion joints and skip-pour casting are commonly used to address cracking issues. Traditional skip-pour casting generally involves larger sections, resulting in insufficient stress release and a still high risk of cracking. If the section size is too small, it will lead to too many construction joints, which not only increases the complexity of the construction process but also compromises the integrity of the concrete floor structure, making it easier for quality problems such as cracking and sandblasting to occur at the construction joint locations. Summary of the Invention

[0004] The main objective of this invention is to propose a construction process and structure for concrete flooring, aiming to improve the problems of high cracking risk and difficulty in balancing stress release and structural integrity in the construction of existing large-area concrete flooring structures.

[0005] To achieve the above objectives, the construction process for the concrete floor structure proposed in this invention involves forming multiple pouring blocks. These multiple pouring blocks are arranged in an array in a first direction and a second direction. Each of the multiple pouring blocks includes multiple first blocks and multiple second blocks. Each first block is adjacent to a second block in both the first and second directions. Concrete is poured onto each of the multiple first blocks and the multiple second blocks to form the concrete floor structure. The construction process for the concrete floor structure includes: Concrete is poured into multiple first blocks to form the first concrete block; After the hydration heat peak of multiple first concrete blocks has ended, concrete is poured into multiple second blocks to form second concrete blocks, wherein each second concrete block is connected to an adjacent plurality of first concrete blocks.

[0006] In one embodiment, prior to the step of pouring concrete into the plurality of first blocks to form a first concrete block, the method further includes: First template support is provided around multiple first compartment blocks; In this configuration, a construction joint is formed between each of the first compartment blocks and the adjacent second compartment block, and the first template is placed within the construction joint.

[0007] In one embodiment, the width of the construction joint is A1, where 20mm ≤ A1 ≤ 30mm; and / or, The depth of the construction joint is A2, where A2 ≥ 550 mm; and / or, The length of the construction joint is A3, and the dimension of the casting block in the length direction of the construction joint is B, where A3 ≥ 1 / 3B.

[0008] In one embodiment, the first template includes: A grout-blocking portion, extending upwards from a third side, is used to block concrete slurry during the pouring of the first block, and the grout-blocking portion has a plurality of through holes spaced apart at one end near or away from the first block; and, A bracket is provided on the side of the slurry-blocking part facing the second compartment and is inclined upward on the third side. One end of the bracket is connected to the end face of the slurry-blocking part facing the second compartment, and the other end is used to support the mounting plane.

[0009] In one embodiment, before the step of waiting for the peak hydration heat of the plurality of first concrete blocks to end, and then pouring concrete into the plurality of second blocks to form second concrete blocks, the method further includes: Abrasion-resistant bone meal was spread onto multiple first concrete blocks; Roughening is performed on the portions of the first concrete blocks corresponding to the construction joints; A cement-based penetrating crystalline interface agent is applied to the portion of the first concrete blocks corresponding to the construction joint.

[0010] In one embodiment, the step of waiting for the peak hydration heat of the plurality of first concrete blocks to pass before pouring concrete into the plurality of second blocks to form second concrete blocks includes: A second template is used for support within multiple construction joints, wherein the second template is spaced apart from the joint opening of the construction joint to form an aesthetic joint by surrounding the joint opening of the construction joint. Concrete is poured into multiple second blocks and multiple construction joints to form the second concrete blocks.

[0011] In one embodiment, after the step of pouring concrete into the plurality of second blocks and the plurality of construction joints to form the second concrete blocks, the method further includes: Abrasion-resistant bone meal was spread onto multiple second concrete blocks; The joints are filled with one of the following: modified bitumen sealant, ketone sealant, or urethane sealant.

[0012] In one embodiment, after the step of pouring concrete into the plurality of second blocks and the plurality of construction joints to form the second concrete blocks, the method further includes: Make multiple cuts at intervals along a first direction or a second direction; Fill the multiple cut seams with silicone sealant or acrylic sealant; Flatness testing was performed on multiple first concrete blocks and multiple second concrete blocks.

[0013] In one embodiment, the distance between two adjacent cutting seams is C1, where C1 ≤ 6m; and / or, The width of each cut is C2, where 4mm ≤ C2 ≤ 8mm; and / or, The depth of each cut is C3, where C3 ≥ 60 mm.

[0014] The present invention also proposes a concrete floor structure. Based on the above-mentioned construction process of the concrete floor structure, the concrete floor structure forms a plurality of casting blocks. The plurality of casting blocks are arranged in an array in a first direction and a second direction. The plurality of casting blocks include a plurality of first blocks and second blocks. Each first block is adjacent to a second block in both the first and second directions. Concrete is poured on the plurality of first blocks and the plurality of second blocks to form the concrete floor structure.

[0015] In the technical solution of this invention, concrete is first poured into the areas corresponding to multiple first blocks, so that each of the multiple first blocks can form a first concrete block. Since each first block is adjacent to a second block in both the first and second directions, each of the multiple first blocks is staggered from at least one other first block in both directions. This allows for skip-pour pouring of the multiple pouring blocks, resulting in a smaller concrete volume for each pouring block and a lower total heat of hydration released in a single pour. Simultaneously, no two first concrete blocks directly contact each other, allowing space to be reserved for the adjacent second blocks as a place to release shrinkage stress when each first concrete block cools and shrinks, thus avoiding large-area concrete floor structures. During a single pour, the concentrated release of hydration heat leads to excessive temperature shrinkage stress, which in turn causes cracking in the concrete floor structure. After the peak hydration heat of the multiple first concrete blocks has subsided and most of the cooling and shrinkage deformation has been completed, concrete is poured into the multiple second blocks to form second concrete blocks within them. At this time, the multiple second concrete blocks are connected to the multiple adjacent first concrete blocks. This connects the multiple first concrete blocks and the multiple second concrete blocks into a complete concrete floor structure, which releases most of the temperature shrinkage stress and ensures the structural integrity of the concrete floor structure. This effectively reduces the risk of cracking after the construction of a large-area concrete floor structure and improves the forming quality and structural stability of the concrete floor structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a concrete floor structure according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the first template; Figure 3 A flowchart illustrating the first embodiment of the construction process for the concrete floor structure provided by the present invention; Figure 4 A flowchart illustrating the second embodiment of the construction process for the concrete floor structure provided by the present invention; Figure 5A flowchart illustrating the third embodiment of the construction process for the concrete floor structure provided by the present invention; Figure 6 A flowchart illustrating the fourth embodiment of the construction process for the concrete floor structure provided by the present invention; Figure 7 A flowchart illustrating the fifth embodiment of the construction process for the concrete floor structure provided by the present invention; Figure 8 This is a flowchart illustrating the sixth embodiment of the construction process for the concrete floor structure provided by the present invention.

[0018] Explanation of icon numbers: 100. Concrete floor structure; 1. First block; 2. Second block; 3. First formwork; 31. Grout barrier; 32. Support.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] During the construction of large-area concrete floor structures, the concrete hardening stage releases a large amount of heat of hydration, causing the internal temperature to rise. The temperature shrinkage stress generated during the cooling stage, as well as the shrinkage stress generated by the concrete's own drying shrinkage, can easily lead to irregular cracking of the concrete floor structure. This not only affects the appearance of the floor but also reduces the overall integrity and durability of the floor structure. In severe cases, it can even affect the normal use of the floor.

[0024] In existing large-area concrete floor construction, methods such as reserving expansion joints and skip-pour casting are commonly used to address cracking issues. Traditional skip-pour casting generally involves larger sections, resulting in insufficient stress release and a still high risk of cracking. If the section size is too small, it will lead to too many construction joints, which not only increases the complexity of the construction process but also compromises the integrity of the concrete floor structure, making it easier for quality problems such as cracking and sandblasting to occur at the construction joint locations.

[0025] This invention proposes a construction process and a concrete floor structure, aiming to improve the problems of high cracking risk and difficulty in balancing stress release and structural integrity in the construction of existing large-area concrete floor structures.

[0026] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the concrete floor structure 100 is formed with a plurality of casting blocks, which are arranged in an array in a first direction and a second direction. The plurality of casting blocks include a plurality of first blocks 1 and second blocks 2. Each first block 1 is adjacent to the second block 2 in both the first and second directions. Concrete is poured on the plurality of first blocks 1 and the plurality of second blocks 2 to form the concrete floor structure 100.

[0027] In the technical solution of this invention, the concrete floor structure 100 is constructed using a skip-pour casting process. First, multiple first blocks 1 are poured to form the first concrete block. After the first concrete block has undergone most of its cooling and shrinkage deformation, the second block 2 is poured to form the second concrete block. The concrete block size of each pour is smaller, the heat of hydration is released more dispersed, and space is reserved for the shrinkage deformation of the first concrete block. This effectively disperses the temperature shrinkage stress and avoids cracking of the large-area concrete floor structure 100 due to concentrated shrinkage caused by heat of hydration. This improves the structural stability and service life of the concrete floor structure 100 and has good application advantages in engineering scenarios such as large factories and logistics warehouses that require large-area flat concrete floor structures 100.

[0028] Specifically, to achieve the skip-pour casting process for the concrete floor structure 100, this invention also proposes a construction process for the concrete floor structure. Please refer to [link to relevant documentation]. Figure 3 In the first embodiment of the present invention, the construction process of the concrete floor structure includes: S10. Pour concrete into multiple first blocks 1 to form first concrete blocks; It is understood that since multiple first blocks 1 are adjacent to second blocks 2 in both the first and second directions, in this embodiment, any two first blocks 1 are staggered in at least one of the first and second directions. Thus, when concrete is poured into multiple first blocks 1 to form the first concrete block, any two second concrete blocks will also be staggered in at least one of the first and second directions. This reduces the volume of concrete blocks poured at one time while providing space for the cooling and shrinkage of each first concrete block to release shrinkage stress, effectively dispersing temperature shrinkage stress and ensuring the cooling quality of the first concrete block.

[0029] S20. After the hydration heat peak of the multiple first concrete blocks has ended, concrete is poured into the multiple second blocks 2 to form second concrete blocks, wherein each second concrete block is connected to an adjacent number of first concrete blocks.

[0030] Similarly, in this embodiment, any two second blocks 2 are also staggered at least in one of the first and second directions. Therefore, when concrete is poured into multiple second blocks 2 to form second concrete blocks after the hydration heat peak of multiple first concrete blocks has ended, any two second concrete blocks will also be staggered at least in one of the first and second directions. In this way, the single pouring volume of each second concrete block can also be smaller, the single hydration heat release is lower, and there will be no concentrated temperature shrinkage stress. After multiple second concrete blocks have also completed cooling and shrinkage, the temperature shrinkage stress of the entire concrete floor structure 100 has been released and dispersed in stages, and there will be no excessive tensile stress concentrated at a certain position. This fundamentally reduces the possibility of cracking of the large-area concrete floor structure 100, so as to keep the concrete floor structure 100 intact.

[0031] In this embodiment, concrete is first poured into the areas corresponding to the multiple first blocks 1, so that each of the multiple first blocks 1 can form a first concrete block. Since each first block 1 is adjacent to a second block 2 in both the first and second directions, each of the multiple first blocks 1 is staggered from at least another first block 1 in both directions. This allows for skip-pouring of the multiple pouring blocks, resulting in a smaller concrete volume for each pouring block and a lower total heat of hydration released in a single pour. Simultaneously, no two first concrete blocks directly contact each other, allowing space to be reserved at the adjacent positions of the multiple second blocks 2 as a place to release shrinkage stress when each first concrete block cools and shrinks, thus avoiding the large-area concrete floor structure 100 being poured all at once. During pouring, the concentrated release of hydration heat leads to excessive temperature shrinkage stress, which in turn causes cracking of the concrete floor structure 100. After the peak of hydration heat in the multiple first concrete blocks has ended and most of the cooling shrinkage deformation has been completed, concrete is poured into the multiple second blocks 2 to form second concrete blocks within the multiple second blocks 2. At this time, the multiple second concrete blocks are connected to the multiple adjacent first concrete blocks. In this way, the multiple first concrete blocks and the multiple second concrete blocks can be connected into a complete concrete floor structure 100. This not only releases most of the temperature shrinkage stress but also ensures the structural integrity of the concrete floor structure 100, effectively reducing the risk of cracking after the construction of a large area of ​​concrete floor structure 100, and improving the forming quality and structural stability of the concrete floor structure 100.

[0032] In the second embodiment of the present invention, please refer to... Figure 4 Before step S10, the procedure further includes: S01, First template 3 is used to support multiple first compartment blocks 1.

[0033] In the technical solution of the present invention, the first template 3 is set around the boundary of the multiple first blocks 1, which can accurately limit the forming size of the first concrete block when pouring the first concrete block, prevent the first concrete block from crossing the boundary and intruding into the pouring area of ​​the second block 2, ensure the accuracy of skip-pour and block division, reserve space that meets the design requirements for the smooth pouring of the second concrete block in the future, and improve the regularity of the overall pouring.

[0034] Meanwhile, in this embodiment, a construction joint is formed between each of the first concrete blocks 1 and the adjacent second concrete blocks 2, and the first template 3 is disposed within the construction joint. Thus, the construction joint allows for temporary separation between the first concrete blocks 1 and the second concrete blocks 2, enabling temporary release of hydration heat from the first concrete block. When the second concrete block is subsequently poured, the construction joint can also serve as a bonding surface between the first and second concrete blocks, ensuring the continuity of the overall structure after concrete pouring and bonding.

[0035] Of course, to ensure that the construction joint serves both as a temporary separation between the first block 1 and the second block 2, and also guarantees the bonding strength between the second concrete block and the first concrete block after the second concrete block has been poured, in a further embodiment of the present invention, the width of the construction joint is A1, where 20mm ≤ A1 ≤ 30mm. This setting limits the width of the construction joint to a reasonable range, providing operational space for subsequent processing operations while ensuring the bonding strength between the first and second concrete blocks, thus preventing insufficient filling or bonding strength due to an excessively wide construction joint.

[0036] Similarly, the overall strength of the concrete floor structure 100 can be improved in other ways. In another embodiment of the present invention, the depth of the construction joint is A2, where A2 ≥ 550 mm. With this setting, it is generally necessary to tie the reinforcing bars before pouring concrete. The total thickness of the reinforcing bars in a large-area concrete floor structure 100 is usually less than 500 mm. The depth of the construction joint is not less than 550 mm, which can completely penetrate the core area of ​​the reinforcing bar layer of the concrete floor structure 100. This ensures that the reinforcing bars that are continuously penetrating in the third direction can form an effective tie between the first concrete block and the second concrete block. This avoids the joint from becoming a weak layer due to insufficient depth, which could lead to the breaking of the reinforcing bars, insufficient ties, and cracking. This further improves the overall strength of the concrete floor structure 100.

[0037] Furthermore, setting the depth of the construction joint to be more than 550mm can further increase the independent heat dissipation area of ​​the first concrete block, accelerate the release of hydration heat, and reduce the impact of temperature stress on the overall structure.

[0038] It should also be noted that, in another embodiment of the present invention, to reduce the weakening of the structural load-bearing capacity by the construction joint, the length of the construction joint is A3, and the dimension of the pouring block in the length direction of the construction joint is B, where A3 ≥ 1 / 3B. This arrangement ensures that the construction joint does not completely sever the connection between two adjacent pouring blocks in a single direction, avoiding excessive weakening of the overall load-bearing capacity of the concrete floor structure 100. Simultaneously, it ensures that the first concrete block has sufficient free shrinkage surface to release temperature shrinkage stress, thus balancing the performance requirements of both structural strength and stress release.

[0039] In a further embodiment of the present invention, the center line of the construction joint is set close to the center line of the first block 1.

[0040] Of course, the present invention does not limit the specific structural form of the first template 3. In one embodiment of the present invention, the first template 3 can be set as a formwork support template. With this setting, when concrete needs to be poured for the second block 2, the first template 3 can be removed in advance, which not only makes room for the pouring of the second block 2, but also allows the first template 3 to be reused in the formwork support work of other areas, reducing the input of formwork materials and reducing construction costs.

[0041] In another embodiment of the present invention, the first template 3 includes a grout-blocking part 31 and a support 32. The grout-blocking part 31 extends upward in a third direction and is used to block concrete slurry during the pouring process of the first block 1. The grout-blocking part 31 has a plurality of through holes spaced apart at one end near or away from the first block 1. The support 32 is located on the side of the grout-blocking part 31 facing the second block 2 and is inclined upward in a third direction. One end of the support 32 is connected to the end face of the grout-blocking part 31 facing the second block 2, and the other end is used to support the mounting plane. With this configuration, the bracket 32 ​​can provide oblique and stable support to the grout-blocking part 31, preventing the lateral pressure from squeezing the grout-blocking part 31 during the pouring of concrete in the first block 1, thus avoiding displacement of the formwork and ensuring the accurate position of the construction joint. At the same time, the multiple through holes provided in the grout-blocking part 31 can connect the first block 1 and the second block 2. When pouring concrete for the second block 2, it is not necessary to disassemble the grout-blocking part 31 and the bracket 32. The concrete can be filled and compacted through the through holes, further improving the integrity of the joint between the two blocks and preventing gaps or defects from appearing on the joint surface.

[0042] Of course, in order to further improve the connection stability between the first concrete block and the second concrete block, in a further embodiment of the present invention, the end of the grout-blocking part 31 facing the second block 2 is at least partially recessed. With this configuration, the recessed part of the grout-blocking part 31 can increase the contact area between the first concrete block and the subsequently poured second concrete block, improve the interlocking friction at the connection position of the two concrete blocks, enhance the bonding strength between the old and new concrete, avoid the problem of cracking or separation at the construction joint, and further improve the integrity of the entire concrete floor structure 100.

[0043] Furthermore, in this invention, the connection strength between the first concrete block and the second concrete block can also be improved through other means; please refer to [link to relevant documentation]. Figure 5 In the third embodiment of the present invention, before step S20, the method further includes: S11. Spread wear-resistant bone powder onto multiple first concrete blocks; With this configuration, the wear-resistant bone powder can improve the smoothness of the surface of multiple first concrete blocks, and can significantly improve the surface hardness, wear resistance and impact resistance of multiple first concrete blocks, inhibit surface sanding and powdering; improve the density of the surface layer, and enhance the ability to resist seepage and stains.

[0044] S12. Roughen the portions of the multiple first concrete blocks corresponding to the construction joints; Understandably, after the first concrete block has cooled and shrunk, slurry will seep out on its surface at the construction joint, forming a relatively smooth bonding surface. At this point, directly pouring the second concrete block could easily lead to a weak bond between the old and new concrete, resulting in insufficient joint strength. Roughening the surface at the construction joint removes the laitance and loose concrete, exposing the solid aggregate inside. This increases the roughness of the bonding surface between the first and second concrete blocks, improving the adhesion between the old and new concrete, further ensuring the structural strength at the joint, and preventing cracking at the construction joint later.

[0045] S13. Apply a cement-based penetrating crystalline interface agent to the portion of the multiple first concrete blocks corresponding to the construction joint.

[0046] With this configuration, the cement-based penetrating crystalline interface agent can penetrate into the tiny gaps on the surface of the first concrete block. After undergoing a physicochemical reaction, it generates crystals to fill the pores, which can not only enhance the bond between the new and old concrete, but also improve the impermeability of the bonding surface, preventing external water from seeping in from the construction joint and eroding the internal steel reinforcement, thereby further improving the durability and bonding reliability of the concrete floor structure 100.

[0047] In this embodiment, the portions of the first concrete blocks corresponding to the construction joints are first roughened to remove laitance and weak concrete layers from the surface of the construction joints, exposing fresh, hard concrete aggregate. This provides a rough and solid bonding surface for the bonding of new and old concrete, increasing the contact area and interlocking force. Then, a cement-based penetrating crystalline interface agent is applied to the roughened bonding surface. The interface agent's penetrating and crystalline action fills the tiny pores on the surface of the first concrete blocks, strengthening the bonding strength and impermeability of the bonding surface. This allows the subsequently poured second concrete to better bond with the first concrete blocks, preventing the construction joint from becoming a structural weak point due to poor bonding between the new and old concrete. This effectively reduces the risk of later cracking at the construction joint location, further improving the integrity and durability of the entire concrete floor structure 100.

[0048] In the fourth embodiment of the present invention, please refer to... Figure 6 Step S20 includes: S21. A second template is used for support within the multiple construction joints, wherein the second template is spaced apart from the joint opening of the construction joint to form an aesthetic joint by surrounding the joint opening of the construction joint. It is understandable that after the first concrete block and the second concrete block interlock, the overall concrete may still experience stress concentration at the joint of adjacent blocks or uneven joints at the contact surface under temperature changes or loads. Therefore, by setting the second template with an interlocking joint to enclose the aesthetic joint, the stress concentration can be guided to the aesthetic joint and actively released, avoiding the random diffusion of stress that could cause irregular cracking of the concrete floor structure 100. At the same time, the aesthetic joint can also straighten the boundary at the joint of the first concrete block and the second concrete block, ensuring a smooth and straight overall floor appearance and improving the aesthetic effect after molding.

[0049] S22. Concrete is poured into the plurality of second blocks 2 and the plurality of construction joints to form the second concrete blocks.

[0050] When pouring concrete into the second block 2, the concrete can flow to the side of the second template away from the construction joint to connect the first concrete block. The area of ​​the aesthetic joint enclosed by the second template and the construction joint will not be filled with concrete, thus leaving a regular stress relief groove after the concrete floor structure 100 is formed. This can guide the temperature stress to be released at the preset position, ensuring the integrity of the concrete floor structure 100 and the rest of the structure, and also making the floor joint position neater and more beautiful, improving the construction and forming effect.

[0051] In the technical solution of the embodiment, by first enclosing the decorative joint and then pouring the entire structure, the irregular cracks that are likely to occur later can be transformed into the pre-set regular decorative joints. This not only actively releases the residual temperature shrinkage stress, but also ensures the appearance flatness of the concrete floor structure 100, taking into account both structural performance and decorative effect. This further reduces the probability of irregular cracks appearing in the concrete floor structure 100 later and improves the construction quality of the large-area concrete floor structure 100.

[0052] Of course, after the second template and the construction joint have enclosed the decorative seam, to further improve the aesthetics and practicality of the decorative seam, a flexible sealing material can be filled into the seam after it is formed. Please refer to [link / reference needed]. Figure 7 In the fifth embodiment of the present invention, after step S22, the method further includes: S23. Spread wear-resistant bone powder onto multiple second concrete blocks; With this configuration, the wear-resistant bone powder can improve the smoothness of the surface of multiple second concrete blocks, and can significantly improve the surface hardness, wear resistance and impact resistance of multiple second concrete blocks, inhibit surface sanding and powdering; improve the density of the surface layer, and enhance the ability to resist seepage and stains.

[0053] S24. Fill the plurality of said joints with one of modified bitumen sealant, ketone sealant or urethane sealant.

[0054] In the technical solution of this embodiment, the filled flexible sealing material can adapt to the slight deformation of the concrete floor structure 100, which can not only seal the opening of the art joint, preventing external dust, debris or water from falling into the joint and blocking the stress release channel, but also prevent water from seeping into the joint and eroding the base layer or steel bars, further improving the durability of the concrete floor structure 100. At the same time, it can also make the art joint look cleaner and improve the overall aesthetics of the concrete floor structure 100.

[0055] In addition, please see Figure 8 In the sixth embodiment of the present invention, after step S20, the method further includes: S31. Make multiple cutting slits at intervals along the first or second direction; It is understood that the cut seam can serve as a permanent shrinkage control measure for the concrete floor structure 100, and can release the shrinkage stress generated during the hardening process of concrete through regular seams, thereby preventing irregular cracks from appearing in the concrete floor structure 100.

[0056] S32. Fill the multiple cut seams with silicone sealant or acrylic sealant; Understandably, the filled sealant can seal the opening of the cut joint, preventing moisture and impurities from entering the joint and eroding the base layer. At the same time, it can adapt to the slight deformation of the cut joint, maintain the sealing effect, prevent the joint from rusting or becoming blocked, maintain the stress release function of the cut joint, and further improve the overall durability and aesthetics of the concrete floor structure 100.

[0057] S33. Perform flatness testing on multiple first concrete blocks and multiple second concrete blocks.

[0058] Understandably, flatness testing can promptly identify flatness deviations in the already formed concrete floor. If the deviation exceeds the allowable range, corrective measures such as grinding and leveling can be taken in time to avoid stress concentration, water accumulation and wear problems caused by local unevenness during subsequent use, thus ensuring that the concrete floor structure meets design and usage requirements.

[0059] In the technical solution of this embodiment, by setting the cutting seams at intervals, the residual temperature shrinkage stress of the concrete floor structure 100 after the skip-pour pouring can be further released in zones, avoiding areas of stress concentration on a large area of ​​the ground. Combined with filling with silicone sealant or acrylic sealant, the stress release function of the cutting seams can be maintained for a long time, further reducing the risk of irregular cracking on the surface of the concrete floor structure 100 as a whole, and comprehensively improving the construction quality and service life of the concrete floor structure 100.

[0060] Of course, to ensure that the cutting joints can effectively release the temperature shrinkage stress of the concrete floor structure 100, in one embodiment of the present invention, the distance between two adjacent cutting joints is C1, where C1 ≤ 6m. This setting allows the stress release range to be controlled within a reasonable range, ensuring that the shrinkage stress in each area can be effectively released through adjacent cutting joints. This avoids excessively large ranges that could lead to significant stress concentration within the area, thereby preventing irregular cracking and ensuring the stress control effect of the cutting joints.

[0061] Furthermore, to ensure that the cut joints can release temperature shrinkage stress on the concrete floor structure 100 while reducing their impact on the strength of the concrete floor structure 100, in a further embodiment of the present invention, the width of each cut joint is C2, where 4mm ≤ C2 ≤ 8mm. This design satisfies the space requirement for releasing minor shrinkage deformation of the concrete without excessively weakening the structural thickness of the concrete floor structure 100 due to excessively large cut joint widths, thus avoiding affecting the overall load-bearing capacity of the floor. It also facilitates subsequent sealant filling, reducing the material cost of joint sealing.

[0062] Furthermore, the depth of each cut is C3, where C3 ≥ 60mm. This design ensures that the cut depth is sufficient to cut through the surface layer of the concrete floor structure 100, allowing shrinkage stress to be released along the preset position of the cut, preventing disorderly stress diffusion on the surface, ensuring the directionality of stress release, effectively controlling the occurrence of irregular cracks, and preventing the cut from being too deep and damaging the integrity of the floor base. This balances the stress release requirements with the structural load-bearing requirements, further ensuring the structural performance of the concrete floor structure 100.

[0063] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A construction process for a concrete floor structure, characterized in that, The concrete floor structure comprises multiple cast-in-place blocks arranged in an array in a first direction and a second direction. Each cast-in-place block includes multiple first blocks and multiple second blocks. Each first block is adjacent to a second block in both the first and second directions. Concrete is poured onto each of the first and second blocks to form the concrete floor structure. The construction process of the concrete floor structure includes: Concrete is poured into multiple first blocks to form the first concrete block; After the hydration heat peak of multiple first concrete blocks has ended, concrete is poured into multiple second blocks to form second concrete blocks, wherein each second concrete block is connected to an adjacent plurality of first concrete blocks.

2. The construction process for the concrete floor structure as described in claim 1, characterized in that, Prior to the step of pouring concrete into multiple first blocks to form a first concrete block, the method further includes: First template support is provided around multiple first compartment blocks; In this configuration, a construction joint is formed between each of the first compartment blocks and the adjacent second compartment block, and the first template is placed within the construction joint.

3. The construction process for the concrete floor structure as described in claim 2, characterized in that, The width of the construction joint is A1, 20mm ≤ A1 ≤ 30mm; and / or, The depth of the construction joint is A2, where A2 ≥ 550 mm; and / or, The length of the construction joint is A3, and the dimension of the casting block in the length direction of the construction joint is B, where A3 ≥ 1 / 3B.

4. The construction process for the concrete floor structure as described in claim 2, characterized in that, The first template includes: A grout-blocking portion, extending upwards from a third side, is used to block concrete slurry during the pouring of the first block, and the grout-blocking portion has a plurality of through holes spaced apart at one end near or away from the first block; and, A bracket is provided on the side of the slurry-blocking part facing the second compartment and is inclined upward on the third side. One end of the bracket is connected to the end face of the slurry-blocking part facing the second compartment, and the other end is used to support the mounting plane.

5. The construction process for the concrete floor structure as described in claim 1, characterized in that, Before the step of waiting for the hydration heat peak of the multiple first concrete blocks to pass, and then pouring concrete into the multiple second blocks to form the second concrete blocks, the method further includes: Abrasion-resistant bone meal was spread onto multiple first concrete blocks; Roughening is performed on the portions of the first concrete blocks corresponding to the construction joints; A cement-based penetrating crystalline interface agent is applied to the portion of the first concrete blocks corresponding to the construction joint.

6. The construction process of the concrete floor structure as described in claim 1, characterized in that, The step of waiting for the hydration heat peak of the multiple first concrete blocks to pass, and then pouring concrete into the multiple second blocks to form the second concrete blocks, includes: A second template is used for support within multiple construction joints, wherein the second template is spaced apart from the joint opening of the construction joint to form an aesthetic joint by surrounding the joint opening of the construction joint. Concrete is poured into multiple second blocks and multiple construction joints to form the second concrete blocks.

7. The construction process for the concrete floor structure as described in claim 6, characterized in that, After the step of pouring concrete into the plurality of second blocks and the plurality of construction joints to form the second concrete blocks, the method further includes: Abrasion-resistant bone meal was spread onto multiple second concrete blocks; The joints are filled with one of the following: modified bitumen sealant, ketone sealant, or urethane sealant.

8. The construction process for the concrete floor structure as described in claim 1, characterized in that, After the step of pouring concrete into the plurality of second blocks and the plurality of construction joints to form the second concrete blocks, the method further includes: Make multiple cuts at intervals along a first direction or a second direction; Fill the multiple cut seams with silicone sealant or acrylic sealant; Flatness testing was performed on multiple first concrete blocks and multiple second concrete blocks.

9. The construction process for the concrete floor structure as described in claim 8, characterized in that, The distance between two adjacent cuts is C1, where C1 ≤ 6m; and / or, The width of each cut is C2, where 4mm ≤ C2 ≤ 8mm; and / or, The depth of each cut is C3, where C3 ≥ 60 mm.

10. A concrete floor structure, characterized in that, Based on the construction process of the concrete floor structure as described in any one of claims 1 to 9, the concrete floor structure forms a plurality of casting blocks, the plurality of casting blocks are arranged in an array in a first direction and a second direction, the plurality of casting blocks include a plurality of first blocks and second blocks, each of the first blocks is adjacent to the second blocks in both the first and second directions, and concrete is poured on the plurality of first blocks and the plurality of second blocks to form the concrete floor structure.

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