Self-waterproofing concrete and its construction methods

Abstract

This invention provides self-waterproof concrete and its construction method. The self-waterproof concrete is composed of the following materials: cement, sand, aggregate, water, additives, and waterproofing agent; the aggregate is crushed stone, and the waterproofing agent is a polymer modifier; wherein, cement: 10-15 parts; sand: 25-35 parts; crushed stone: 40-50 parts; water: 10-15 parts; additives: 5-10 parts; polymer modifier: 1-5 parts; the additives include plasticizers, water-reducing agents, and accelerators; the construction method includes the following steps: Step 1: preparing materials; Step 2: mixing concrete; Step 3: stirring concrete; Step 4: pouring concrete; Step 5: curing concrete. This invention, by incorporating a polymer modifier, can significantly improve the compressive strength, tensile strength, and durability of concrete, and can fill the capillaries and microcracks inside the concrete, increasing the compactness and density of the concrete, thereby improving the water resistance and impermeability of the concrete.

Description

Technical Field

[0001] This invention relates to the field of concrete technology, specifically to self-waterproof concrete and its construction method. Background Technology

[0002] In the fields of architecture and civil engineering, concrete is generally made by mixing cementitious materials, aggregates, and water. After ordinary concrete is formed, it often experiences water seepage or even leakage. The industry generally categorizes the causes of seepage and leakage into two types: one is due to cracks or tiny channels inherent in the concrete itself, allowing water to slowly seep from one side to the other under external forces such as water pressure; the other is due to capillary action, where the difference between cohesion and adhesion causes water to be drawn from one side to the other. Because of these causes of seepage or leakage, the outer concrete layers of a building, such as roofs, facades, and kitchens and bathrooms, can damage the interior, severely impacting the comfort of living.

[0003] Currently, when constructing roofs, facades, and kitchens and bathrooms, waterproof coatings are often applied to the walls to improve their waterproofing. This is especially true for bathroom walls, where daily bathing keeps them damp, necessitating enhanced waterproofing to prevent damage to interior finishes. Consequently, some buildings use self-waterproofing concrete for bathroom walls. Traditional self-waterproofing concrete often involves adding silicate waterproofing agents during concrete preparation to enhance its waterproofing. However, silicate waterproofing agents have poor durability; with long-term use and environmental erosion, they gradually lose their waterproofing effect, leading to moisture penetration into the concrete surface.

[0004] Therefore, this application proposes self-waterproof concrete and its construction method. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides self-waterproof concrete and its construction method, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] Self-waterproof concrete and its construction method: Self-waterproof concrete is composed of the following materials: cement, sand, aggregate, water, additives, and waterproofing agent; the aggregate is crushed stone, and the waterproofing agent is a polymer modifier;

[0008] Of which, cement: 10-15 parts;

[0009] Sand: 25-35 parts;

[0010] Crushed stone: 40-50 parts;

[0011] Water: 10-15 parts;

[0012] Additives: 5-10 parts;

[0013] Polymer modifier: 1-5 parts.

[0014] Furthermore: the additives include plasticizers, water-reducing agents, and accelerators; wherein, the plasticizer is 0.1-1.5 parts; the water-reducing agent is 0.1-2 parts; and the accelerator is 0.5-3 parts.

[0015] A construction method for self-waterproof concrete, using the self-waterproof concrete described in any one of the preceding claims, comprising the following steps:

[0016] Step 1: Prepare materials: cement, sand, gravel, water, plasticizer, water-reducing agent, accelerator, and polymer modifier;

[0017] Step 2: Concrete mixing: According to the mix proportions, add cement, sand, gravel, water, plasticizer, water-reducing agent, accelerator, and polymer modifier into the mixing equipment and mix.

[0018] Step 3: Mixing Concrete: Use mixing equipment to thoroughly mix all components to form a homogeneous slurry mixture;

[0019] Step 4: Pour concrete: Pour the concrete into the prepared construction site.

[0020] Furthermore, the construction method also includes the following steps:

[0021] Step 5: Curing Concrete: After the concrete is poured, spray water regularly for curing.

[0022] Furthermore: the mixing equipment includes a mixing tank, a support frame fixed at the bottom of the outer side of the mixing tank for supporting the mixing tank, the top of the mixing tank is open, a mixing cylinder one is fixed at the middle of the mixing tank, a mixing cylinder two is fixed in a circular array inside the mixing tank and outside the mixing cylinder one, there are gaps between the bottom of the mixing cylinder one and the mixing cylinder two and the bottom wall of the mixing tank, a positioning block fixed to the mixing tank is fixed between two adjacent mixing cylinder two, multiple positioning blocks extend above the mixing cylinder one and the mixing cylinder two, and a positioning plate is fixed on the top of the multiple positioning blocks, a sealing component for sealing or unsealing the inside is installed inside the mixing cylinder two, a mixing mechanism is installed on the positioning plate and inside the mixing cylinder two, a conveying mechanism is installed on the positioning plate and inside the mixing cylinder one, the bottom of the conveying mechanism extends to the bottom of the mixing cylinder one and contacts the bottom wall of the mixing tank, the conveying mechanism is used to convey the concrete in the mixing tank upward along the mixing cylinder one, a material drop hole is opened at the bottom of the mixing tank, and a sealing mechanism for sealing or unsealing the material drop hole is installed on the mixing tank.

[0023] Furthermore: the sealing component includes an upper sector plate and a lower sector plate. The lower sector plate is fixedly installed inside the second mixing drum and has a gap with the inner wall of the second mixing drum. The upper sector plate is rotatably installed on the lower sector plate. The upper sector plate and the lower sector plate are in contact, and the upper sector plate can seal the gap between the lower sector plate and the inner wall of the second mixing drum. A motor for driving the upper sector plate to rotate is fixedly installed at the bottom of the lower sector plate. A protective shell sleeved on the outside of the motor is fixedly installed at the bottom of the lower sector plate.

[0024] The sealing mechanism includes a sealing plate hinged to the bottom of the mixing tank, and an electric actuator is installed on the mixing tank to drive the sealing plate to rotate.

[0025] Furthermore: the bottom wall of the mixing tank is inclined downward along the direction of the material discharge hole, and the conveying mechanism includes a conveying roller that is rotatably mounted on the positioning plate via a rotating shaft and located inside the mixing tank. The bottom of the conveying roller extends to the bottom of the mixing tank and is in contact with the bottom wall of the mixing tank.

[0026] The stirring mechanism includes stirring rods rotatably mounted on the positioning plate and located inside the stirring drum 2. The stirring drum is equipped with a drive mechanism for driving multiple stirring rods and rotating shafts to rotate.

[0027] Furthermore: the drive mechanism includes a drive gear coaxially fixed to the rotating shaft, and multiple stirring rods are coaxially fixed to driven gears that mesh with the drive gear. An electric motor is fixedly installed on the stirring tank, and the output shaft of the electric motor is connected to the rotating shaft through a bevel gear assembly.

[0028] Furthermore: the top of the conveying roller is located in the middle of the mixing drum, and a crossbar is fixed on the outside of the rotating shaft and inside the mixing drum;

[0029] The inner wall of the discharge hole slopes outward along the bottom of the mixing tank. A sealing block is fixed on the sealing plate. An installation groove is opened on the inner wall of the discharge hole. A sealing gasket is fixedly installed in the installation groove. When the sealing plate is in contact with the bottom of the mixing tank, the sealing block is in contact with the inner wall of the discharge hole, and the sealing block and the sealing gasket form abutment.

[0030] Furthermore: a feeding mechanism for conveying concrete raw materials into the mixing drum is installed on the outside of the mixing drum, the feeding mechanism comprising:

[0031] A fixed ring is fixedly sleeved on the outside of the mixing tank. Multiple lifting units are installed on the fixed ring, and each lifting unit corresponds to one of the multiple mixing tanks. Each lifting unit includes two lifting columns symmetrically fixed on the fixed ring. A slider is slidably installed vertically on the lifting column. A hopper is rotatably installed on the two sliders. The top of the hopper is open. A guide plate is fixed on the hopper and outside its open end. A motor is fixedly installed on one of the sliders to drive the hopper to rotate. A threaded rod connected to the slider is rotatably installed on the lifting column. A motor is fixedly installed on the lifting column to drive the threaded rod to rotate.

[0032] This invention provides self-waterproof concrete and its construction method. Compared with the prior art, it has the following advantages:

[0033] By incorporating polymer modifiers, the compressive strength, tensile strength, and durability of concrete can be significantly improved. These modifiers can fill the capillaries and microcracks within the concrete, increasing its density and compactness, thereby enhancing its water resistance and impermeability. Furthermore, the waterproof layer formed by polymer modifiers provides excellent resistance to chemical erosion, exhibiting high resistance to harmful substances such as acids, alkalis, and salt water, thus extending the service life of concrete structures. Polymer modifiers are typically non-toxic, odorless, and environmentally friendly materials, and self-waterproofing concrete prepared using polymer modifiers meets the requirements of sustainable development and environmental protection. Attached Figure Description

[0034] 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 these drawings without creative effort.

[0035] Figure 1 A flowchart illustrating the construction method of the self-waterproofing concrete of the present invention is shown;

[0036] Figure 2 A three-dimensional structural schematic diagram of the stirring device of the present invention is shown;

[0037] Figure 3 A schematic diagram of the mounting structure of the slider of the present invention is shown;

[0038] Figure 4 A schematic diagram of the installation structure of the stirring rod of the present invention is shown;

[0039] Figure 5 The present invention is shown Figure 4 Enlarged view of point A in the middle;

[0040] Figure 6 A schematic diagram of the installation structure of the conveying mechanism of the present invention is shown;

[0041] Figure 7 The present invention is shown Figure 6 Enlarged view of point B in the middle;

[0042] Figure 8 A schematic diagram of the feeding mechanism of the present invention is shown;

[0043] The diagram shows: 1. Mixing tank; 11. Mixing tank one; 12. Mixing tank two; 13. Positioning block; 14. Positioning plate; 15. Material drop hole; 151. Mounting groove; 152. Sealing gasket; 16. Support frame; 2. Sealing component; 21. Upper sector plate; 22. Lower sector plate; 23. Motor one; 24. Protective shell; 3. Mixing mechanism; 31. Mixing rod; 4. Conveying mechanism; 41. Conveying roller; 42. Rotating shaft; 421. Crossbar; 5. Sealing mechanism; 51. Sealing plate; 511. Sealing block; 52. Electric push rod; 6. Drive mechanism; 61. Driving gear; 62. Driven gear; 63. Electric motor; 64. Bevel gear assembly; 7. Feeding mechanism; 71. Fixing ring; 72. Lifting column; 73. Slider; 74. Hopper; 741. Guide plate; 75. Motor two; 76. Threaded rod; 77. Motor three. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1

[0046] To address the technical problems in the background section, the following self-waterproofing concrete and its construction method are provided:

[0047] Combination Figures 1-8 As shown, the self-waterproof concrete and its construction method provided by the present invention are composed of the following materials: cement, sand, aggregate, water, additives, and waterproofing agent; the aggregate is crushed stone, and the waterproofing agent is a polymer modifier; wherein, cement: 10-15 parts; sand: 25-35 parts; crushed stone: 40-50 parts; water: 10-15 parts; additives: 5-10 parts; polymer modifier: 1-5 parts.

[0048] Polymer modifiers can significantly improve the compressive strength, tensile strength, and durability of concrete. They can fill the capillaries and microcracks inside the concrete, increasing its density and compactness, thereby improving its water resistance and impermeability. Furthermore, the waterproof layer formed by polymer modifiers can provide good resistance to chemical erosion and has a high resistance to harmful substances such as acids, alkalis, and salt water, thus extending the service life of concrete structures. Polymer modifiers are generally non-toxic, odorless, and environmentally friendly materials, and self-waterproof concrete prepared using polymer modifiers meets the requirements of sustainable development and environmental protection.

[0049] In this embodiment, the additives include plasticizers, water-reducing agents, and accelerators; wherein, the plasticizer is 0.1-1.5 parts; the water-reducing agent is 0.1-2 parts; and the accelerator is 0.5-3 parts.

[0050] Plasticizers are used to improve the plasticity and fluidity of concrete; water-reducing agents are used to reduce the amount of water in concrete while maintaining the required workability; accelerators are used to promote the setting and hardening time of concrete and shorten the construction cycle of concrete.

[0051] A construction method for self-waterproof concrete, using the self-waterproof concrete described in any one of the preceding claims, comprising the following steps:

[0052] Step 1: Prepare materials: cement, sand, gravel, water, plasticizer, water-reducing agent, accelerator, and polymer modifier;

[0053] Step 2: Concrete mixing: According to the mix proportions, add cement, sand, gravel, water, plasticizer, water-reducing agent, accelerator, and polymer modifier into the mixing equipment and mix.

[0054] Step 3: Mixing Concrete: Use mixing equipment to thoroughly mix all components to form a homogeneous slurry mixture;

[0055] Step 4: Pouring Concrete: Pour the concrete into the prepared construction site. It is important to ensure the concrete flows evenly to avoid voids or holes and to guarantee waterproofing.

[0056] In this embodiment, the construction method further includes the following steps:

[0057] Step 5: Concrete Curing: After the concrete is poured, spray water regularly for curing. Keeping the concrete surface moist is beneficial to the development of the concrete's strength and waterproofing properties.

[0058] In this embodiment, the mixing device includes a mixing tank 1. A support frame 16 for supporting the mixing tank 1 is fixed at the bottom of the outer side. The top of the mixing tank 1 is open. A first mixing cylinder 11 is fixed at the middle of the mixing tank 1. A second mixing cylinder 12 is fixed in a circular array inside the mixing tank 1 and outside the first mixing cylinder 11. There are gaps between the bottom of the first mixing cylinder 11 and the second mixing cylinder 12 and the bottom wall of the mixing tank 1. A positioning block 13 fixed to the mixing tank 1 is fixed between each adjacent second mixing cylinder 12. Multiple positioning blocks 13 extend above the first mixing cylinder 11 and the second mixing cylinder 12. Furthermore, a positioning plate 14 is fixed to the top of multiple positioning blocks 13. A sealing component 2 for sealing or unsealing the interior of the mixing drum 2 is installed inside the mixing drum 2. A mixing mechanism 3 is installed on the positioning plate 14 and inside the mixing drum 2. A conveying mechanism 4 is installed on the positioning plate 14 and inside the mixing drum 11. The bottom of the conveying mechanism 4 extends to the bottom of the mixing drum 11 and contacts the bottom wall of the mixing drum 1. The conveying mechanism 4 is used to convey the concrete in the mixing drum 1 upward along the mixing drum 11. A discharge hole 15 is opened at the bottom of the mixing drum 1. A sealing mechanism 5 for sealing or unsealing the discharge hole 15 is installed on the mixing drum 1.

[0059] In use, the self-waterproof concrete raw materials are mixed according to the proportion and divided into multiple portions, which are then fed into multiple mixing drums 12. The mixing mechanism 3 is used to mix the self-waterproof concrete raw materials in the multiple mixing drums 12, pre-mixing the self-waterproof concrete raw materials in the mixing drums 12. Then, the sealing device 2 is controlled to remove the seal on the inside of the mixing drums 12, and at the same time, the conveying mechanism 4 is controlled to work. The raw materials in the mixing drums 12 fall into the mixing bucket 1. The concrete in the multiple mixing drums 12 falls into the mixing bucket 1. Then, the concrete in the mixing bucket 1 is conveyed upward along the mixing drum 11 by the conveying mechanism 4. When the concrete moves to the top of the mixing drum 11, multiple positioning blocks 13 limit the concrete, so that the concrete is dispersed again and falls into the multiple mixing drums 11. The mixing mechanism 3 performs secondary mixing of the concrete, improving the mixing effect of the concrete. After the concrete is mixed, the sealing device 5 is removed from the discharge hole 15, and the concrete in the mixing bucket 1 can be discharged through the discharge hole 15, realizing the concrete discharge effect.

[0060] Example 2

[0061] like Figures 1-8 As shown, based on the above embodiments, this embodiment further provides the following:

[0062] In this embodiment, the sealing component 2 includes an upper sector plate 21 and a lower sector plate 22. The lower sector plate 22 is fixedly installed inside the mixing drum 12 and has a gap with the inner wall of the mixing drum 12. The upper sector plate 21 is rotatably installed on the lower sector plate 22, and the upper sector plate 21 and the lower sector plate 22 are in contact. The upper sector plate 21 can seal the gap between the lower sector plate 22 and the inner wall of the mixing drum 12. A motor 23 for driving the upper sector plate 21 to rotate is fixedly installed at the bottom of the lower sector plate 22. A protective shell 24 sleeved on the outside of the motor 23 is fixedly installed at the bottom of the lower sector plate 22. In use, when the sealing of the inside of the mixing drum 12 is removed, the motor 23 is controlled to make the upper sector plate 21 rotate on the lower sector plate 22, so that... The upper sector plate 21 and the lower sector plate 22 are stacked on top of each other, which eliminates the need to seal the gap between the lower sector plate 22 and the inner wall of the mixing drum 12. The concrete in the mixing drum 12 can then fall into the mixing bucket 1, which is easy to control. The design of the protective shell 24 provides protection for the motor 23. The sealing mechanism 5 includes a sealing plate 51 hinged to the bottom of the mixing bucket 1. An electric actuator 52 is installed on the mixing bucket 1 to drive the sealing plate 51 to rotate. In use, the electric actuator 52 rotates the sealing plate 51 on the mixing bucket 1, so that the free end of the sealing plate 51 moves away from the mixing bucket 1, thus eliminating the need to seal the material discharge hole 15. Conversely, when the sealing plate 51 is pressed against the bottom of the mixing bucket 1, the material discharge hole 15 is sealed, which is easy to control.

[0063] In this embodiment, the bottom wall of the mixing drum 1 is inclined downward along the direction of the material discharge hole 15. The conveying mechanism 4 includes a conveying roller 41 rotatably mounted on the positioning plate 14 via a rotating shaft 42 and located inside the mixing drum 11. The bottom of the conveying roller 41 extends below the mixing drum 11 and is in contact with the bottom wall of the mixing drum 1. The mixing mechanism 3 includes a mixing rod 31 rotatably mounted on the positioning plate 14 and located inside the mixing drum 22. The bottom of the mixing rod 31 is in contact with the top of the upper fan-shaped plate 21. When the mixing rod 31 rotates, it can achieve the cleaning effect of the concrete material on the top of the upper fan-shaped plate 21. The mixing drum 1 is equipped with a drive mechanism 6 for driving multiple mixing rods 31 and rotating shaft 42 to rotate.

[0064] In use, the driving mechanism 6 causes multiple stirring rods 31 and the rotating shaft 42 to rotate. The stirring rods 31 rotate inside the second mixing drum 12, which can realize the mixing of the raw materials inside the second mixing drum 12. When the rotating shaft 42 rotates, it drives the conveying roller 41 to rotate. The rotation of the conveying roller 41 can convey the concrete in the mixing drum 1 upward along the first mixing drum 11.

[0065] Example 3

[0066] like Figures 1-8 As shown, based on the above embodiments, this embodiment further provides the following:

[0067] In this embodiment, the drive mechanism 6 includes a drive gear 61 coaxially fixed to the rotating shaft 42, and a plurality of driven gears 62 coaxially fixed to the stirring rods 31, which mesh with the drive gear 61. An electric motor 63 is fixedly installed on the stirring tank 1, and the output shaft of the electric motor 63 is connected to the rotating shaft 42 through a bevel gear assembly 64.

[0068] When in use, the control motor 63 is turned on, and the output shaft of the motor 63 rotates. Through the bevel gear assembly 64, the rotating shaft 42 rotates on the positioning plate 14, which in turn drives the conveying roller 41 to rotate. The rotation of the rotating shaft 42 drives the drive gear 61 to rotate, which in turn drives the multiple driven gears 62 to rotate the multiple stirring rods 31 respectively.

[0069] In this embodiment, the top of the conveying roller 41 is located in the middle of the mixing drum 11. A crossbar 421 is fixed outside the rotating shaft 42 and inside the mixing drum 11. By setting the crossbar 421, the rotating shaft 42 rotates and drives the conveying roller 41 to rotate. When the concrete in the mixing drum 1 is conveyed upward along the mixing drum 11, it drives multiple crossbars 421 to rotate around the rotating shaft 42. This allows the concrete in the mixing drum 1 to be stirred and mixed simultaneously while being conveyed upward along the mixing drum 11, thereby further improving the mixing effect of the concrete. The inner wall of the discharge hole 15 is inclined outward along the bottom of the mixing drum 1. A sealing block 511 is fixed on the sealing plate 51. An installation groove 151 is opened on the inner wall of the discharge hole 15. A sealing gasket 152 is fixedly installed in the installation groove 151. When the sealing plate 51 is in contact with the bottom of the mixing drum 1, the sealing block 511 is in contact with the inner wall of the discharge hole 15, and the sealing block 511 and the sealing gasket 152 form abutment.

[0070] By designing the sealing block 511, the sealing block 511 fits snugly against the inner wall of the discharge hole 15, achieving a complete sealing effect on the discharge hole 15 and effectively preventing some concrete material from falling into the discharge hole 15. By designing the sealing gasket 152, the fit between the sealing block 511 and the inner wall of the discharge hole 15 is increased, and the sealing performance between the sealing block 511 and the inner wall of the discharge hole 15 is increased, effectively preventing liquid from flowing out of the concrete material.

[0071] In this embodiment, a feeding mechanism 7 for conveying concrete raw materials into a second mixing drum 12 is installed on the outside of the mixing drum 1. The feeding mechanism 7 includes: a fixing ring 71, which is fixedly sleeved on the outside of the mixing drum 1. Multiple sets of lifting units are installed on the fixing ring 71, and the multiple sets of lifting units correspond one-to-one with multiple second mixing drums 12. The lifting unit includes two lifting columns 72 symmetrically fixed on the fixing ring 71. A slider 73 is slidably installed on the lifting column 72 in a vertical direction. A hopper 74 is rotatably installed on the two sliders 73. The top of the hopper 74 is open. A guide plate 741 is fixed on the hopper 74 and located outside its open end. A second motor 75 for driving the hopper 74 to rotate is fixedly installed on one of the sliders 73. A threaded rod 76 threadedly connected to the slider 73 is rotatably installed on the lifting column 72. A third motor 77 for driving the threaded rod 76 to rotate is fixedly installed on the lifting column 72.

[0072] The design of the feeding mechanism 7 facilitates the addition of concrete raw materials to multiple mixing drums 12. In use, the self-waterproof concrete raw materials are fed into each hopper 74 according to the mix ratio. The two control motors 77 of the lifting unit in the same group are turned on, causing the threaded rod 76 to rotate on the lifting column 72. This causes the two sliders 73 to move upward on the two lifting columns 72 respectively, moving the hoppers 74 to the top of the mixing drum 1. Then, the control motor 75 causes the hoppers 74 to rotate on the two sliders 73, so that the guide plate 741 overlaps with the mixing drum 1, allowing the concrete raw materials in the hoppers 74 to fall into the mixing drum 12, thus achieving the effect of feeding concrete raw materials.

[0073] Working principle and usage process of this invention:

[0074] When using the mixing equipment:

[0075] During feeding, the self-waterproof concrete raw materials are fed into each hopper 74 according to the proportion. The two control motors 77 of the lifting unit in the same group are turned on, so that the threaded rod 76 rotates on the lifting column 72, so that the two sliders 73 move upward on the two lifting columns 72 respectively, driving the hopper 74 to move above the mixing drum 1. Then, the control motor 75 makes the hopper 74 rotate on the two sliders 73, so that the guide plate 741 overlaps with the mixing drum 1, so that the concrete raw materials in the hopper 74 fall into the mixing drum 12.

[0076] During mixing, the control motor 63 is turned on, and the output shaft of the motor 63 rotates. This rotation, via the bevel gear assembly 64, drives the rotating shaft 42 to rotate on the positioning plate 14, which in turn drives the conveying roller 41 to rotate. The rotation of the rotating shaft 42, in turn, drives the drive gear 61 to rotate, which in turn drives multiple driven gears 62 to rotate multiple stirring rods 31. The stirring rods 31 rotate inside the second mixing drum 12, thus mixing the raw materials inside the second mixing drum 12. Then, the control motor 23 rotates the upper sector plate 21 on the lower sector plate 22, causing the upper sector plate 21 and the lower sector plate 22 to overlap, thus eliminating the need to seal the gap between the lower sector plate 22 and the inner wall of the second mixing drum 12. The concrete inside the second mixing drum 12 can then fall into the mixing bucket 1. When the rotating shaft 42 rotates, it carries... The rotating conveyor roller 41 transports the concrete in the mixing drum 1 upwards along the mixing drum 11. Simultaneously, the rotating shaft 42 drives the conveyor roller 41 to rotate, transporting the concrete in the mixing drum 1 upwards along the mixing drum 11. This also drives multiple crossbars 421 to rotate around the rotating shaft 42, ensuring that the concrete in the mixing drum 1 is simultaneously mixed and blended as it is transported upwards along the mixing drum 11, thus further improving the mixing effect. Furthermore, when the concrete reaches the top of the mixing drum 11, multiple positioning blocks 13 limit its movement, causing the concrete to disperse and fall back into the mixing drums 11. The mixing rod 31 rotates within the mixing drum 2 12, further mixing the materials within the mixing drum 2 12.

[0077] During material feeding, the electric actuator 52 is controlled to rotate the sealing plate 51 on the mixing drum 1, so that the free end of the sealing plate 51 moves away from the mixing drum 1, thereby canceling the sealing of the material discharge hole 15. The motor 63 is then controlled to rotate in the opposite direction to feed the concrete material into the mixing drum 1. After feeding is completed, the electric actuator 52 is controlled to rotate the sealing plate 51 in the opposite direction on the mixing drum 1, so that the sealing plate 51 fits against the bottom of the mixing drum 1, thereby sealing the material discharge hole 15.

[0078] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction method for self-waterproofing concrete, characterized in that: Self-waterproof concrete is composed of the following materials: cement, sand, aggregate, water, additives, and waterproofing agent; the aggregate is crushed stone, and the waterproofing agent is a polymer modifier; Of which, cement: 10-15 parts; Sand: 25-35 parts; Crushed stone: 40-50 parts; Water: 10-15 parts; Additives: 5-10 parts; Polymer modifier: 1-5 parts; Additives include plasticizers, water-reducing agents, and accelerators; The construction method includes the following steps: Step 1: Prepare materials: cement, sand, gravel, water, plasticizer, water-reducing agent, accelerator, and polymer modifier; Step 2: Concrete mixing: According to the mix proportions, add cement, sand, gravel, water, plasticizer, water-reducing agent, accelerator, and polymer modifier into the mixing equipment and mix. Step 3: Mixing Concrete: Use mixing equipment to thoroughly mix all components to form a homogeneous slurry mixture; Step 4: Pouring concrete: Pour the concrete into the pre-prepared construction site; The mixing equipment includes a mixing tank, a support frame fixed at the bottom of the outer side of the mixing tank for supporting the mixing tank, an open top of the mixing tank, a mixing cylinder one fixed at the middle of the mixing tank, and a mixing cylinder two fixed in a circular array inside the mixing tank and outside the mixing cylinder one. There are gaps between the bottom of the mixing cylinder one and the mixing cylinder two and the bottom wall of the mixing tank. A positioning block fixed to the mixing tank is fixed between two adjacent mixing cylinder twos. Multiple positioning blocks extend above the mixing cylinder one and the mixing cylinder two, and a positioning plate is fixed on the top of the multiple positioning blocks. A sealing component for sealing or unsealing the inside is installed inside the mixing cylinder two. A mixing mechanism is installed on the positioning plate and inside the mixing cylinder two. A conveying mechanism is installed on the positioning plate and inside the mixing cylinder one. The bottom of the conveying mechanism extends to the bottom of the mixing cylinder one and contacts the bottom wall of the mixing tank. The conveying mechanism is used to convey the concrete in the mixing tank upward along the mixing cylinder one. A material drop hole is opened at the bottom of the mixing tank. A sealing mechanism for sealing or unsealing the material drop hole is installed on the mixing tank. The sealing component includes an upper sector plate and a lower sector plate. The lower sector plate is fixedly installed inside the second mixing drum and has a gap with the inner wall of the second mixing drum. The upper sector plate is rotatably installed on the lower sector plate. The upper sector plate and the lower sector plate are in contact, and the upper sector plate can seal the gap between the lower sector plate and the inner wall of the second mixing drum. A motor for driving the upper sector plate to rotate is fixedly installed at the bottom of the lower sector plate. A protective shell sleeved on the outside of the motor is fixedly installed at the bottom of the lower sector plate. The sealing mechanism includes a sealing plate hinged to the bottom of the mixing tank, and an electric actuator is installed on the mixing tank to drive the sealing plate to rotate. The bottom wall of the mixing tank is inclined downward along the direction of the material discharge hole. The conveying mechanism includes a conveying roller that is rotatably mounted on the positioning plate via a rotating shaft and located inside the mixing tank. The bottom of the conveying roller extends to the bottom of the mixing tank and is in contact with the bottom wall of the mixing tank. The stirring mechanism includes a stirring rod rotatably mounted on a positioning plate and located inside the stirring drum 2. The stirring drum is equipped with a drive mechanism for driving multiple stirring rods and a rotating shaft to rotate. The drive mechanism includes a drive gear coaxially fixed to the rotating shaft, and multiple driven gears coaxially fixed to each stirring rod that mesh with the drive gear. An electric motor is fixedly installed on the stirring tank, and the output shaft of the electric motor is connected to the rotating shaft through a bevel gear assembly. The top of the conveying roller is located in the middle of the mixing drum, and a crossbar is fixed on the outside of the rotating shaft and inside the mixing drum. The inner wall of the discharge hole slopes outward along the bottom of the mixing tank. A sealing block is fixed on the sealing plate. An installation groove is opened on the inner wall of the discharge hole. A sealing gasket is fixedly installed in the installation groove. When the sealing plate is in contact with the bottom of the mixing tank, the sealing block is in contact with the inner wall of the discharge hole, and the sealing block and the sealing gasket form abutment. A feeding mechanism for conveying concrete raw materials into the mixing drum is installed on the outside of the mixing drum. The feeding mechanism includes: A fixed ring is fixedly sleeved on the outside of the mixing tank. Multiple lifting units are installed on the fixed ring, and each lifting unit corresponds to one of the multiple mixing tanks. Each lifting unit includes two lifting columns symmetrically fixed on the fixed ring. A slider is slidably installed vertically on the lifting column. A hopper is rotatably installed on the two sliders. The top of the hopper is open. A guide plate is fixed on the hopper and outside its open end. A motor is fixedly installed on one of the sliders to drive the hopper to rotate. A threaded rod connected to the slider is rotatably installed on the lifting column. A motor is fixedly installed on the lifting column to drive the threaded rod to rotate.

2. The construction method of self-waterproof concrete according to claim 1, characterized in that: The plasticizer: 0.1-1.5 parts; the water-reducing agent: 0.1-2 parts; Accelerator: 0.5-3 parts.

3. The construction method of self-waterproof concrete according to claim 2, characterized in that: The construction method also includes the following steps: Step 5: Curing Concrete: After the concrete is poured, spray water regularly for curing.

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