Concrete composite admixture and preparation method thereof

Abstract

The invention relates to the technical field of concrete composite admixtures, in particular to a concrete composite admixture and a preparation method thereof.The concrete composite admixture is prepared from silicate, ultra-nano aluminum sol, high-temperature-resistant and wear-resistant filler, a surfactant, a defoaming agent, a penetrating agent and deionized water; the preparation method comprises the following steps: material storage, material crushing, material mixing, preparation and storage. Various materials are mixed, so that the materials can better play respective roles in the concrete, the performance of the concrete can be effectively improved, the service life of the concrete is prolonged, and preparation is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of concrete composite admixtures, and in particular to a concrete composite admixture and a preparation method thereof. Background Art

[0002] There are a wide variety of concrete admixtures on the market, such as waterproofing agents, antifreeze agents, quick setting agents, retarder agents, early strength agents, water reducing agents, etc. These admixtures can play their own single functions. However, to improve the comprehensive performance of concrete, it is often necessary to add a variety of different types of admixtures to it at the same time. Concrete admixtures with single functions are increasingly unsuitable for the development of high-performance concrete technology. It is under this situation that concrete composite admixtures came into being, and its appearance has attracted widespread attention.

[0003] Concrete composite admixtures are admixtures with more than two main functions. The use of composite admixtures can not only effectively optimize the performance of concrete, but also reduce the production cost of concrete, realize the comprehensive utilization of industrial waste, and reduce environmental pollution. However, the concrete composite admixtures on the market still have more or less technical defects such as large addition amount, the comprehensive performance and performance stability need to be further improved, and there is a negative impact on the performance of concrete.

[0004] A concrete composite admixture with publication number CN118388168A and a preparation method thereof, comprising the following components by weight: 1-3 parts of tetramethylol glycoluril, 2-4 parts of piperazine-N,N'-bis(2-hydroxypropane sulfonic acid), 1-3 parts of water-soluble polymerized cyclodextrin, 3-5 parts of hyperbranched polyglycerol, 1-3 parts of nano zinc oxide, 1-3 parts of fly ash fiber, 0.8-1.5 parts of 1-benzylpyridine-3-carboxylate, 1-4 parts of surfactant, and 1-2 parts of functional copolymer. The admixture has a small dosage, good comprehensive efficiency, and small negative impact on concrete, and can effectively improve the compressive strength, anti-seepage and anti-cracking performance, and durability of concrete.

[0005] The above technical solution can fully improve the quality of concrete, but it is not conducive to rapid production and preparation, and cannot guarantee the effect after material mixing, so it needs to be improved. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a concrete composite admixture and a preparation method thereof.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A concrete composite admixture is prepared from the following raw materials: silicate, ultra-nano aluminum sol, high-temperature wear-resistant filler, surfactant, defoamer, penetrant, and deionized water, wherein the weight ratio of the silicate, ultra-nano aluminum sol, high-temperature wear-resistant filler, surfactant, defoamer, penetrant, and deionized water is 20-30 parts: 15-25 parts: 30-40 parts: 5-10 parts: 2-3 parts: 1-2 parts: 60-80 parts.

[0009] Compared with the prior art, the present application performs a mixing operation by using a variety of materials so that they can better play their respective roles in the concrete, can effectively improve the performance of the concrete, extend the service life of the concrete, and is easy to prepare.

[0010] Preferably, the silicate is any one of potassium silicate and lithium silicate; the ultra-nano aluminum sol is nano-aluminum oxide solution; the high temperature and wear-resistant filler is chromium trioxide; the surfactant is any one of high-fluorinated alkyl sulfonate, polyether siloxane or fluorocarbon surfactant; the defoaming agent is any one of ethylene glycol siloxane, polydimethylsiloxane, polyoxypropylene oxyethylene glycerol ether, polyoxyethylene ether, polyoxyethylene and polypropylene pentaerythritol ether; the penetrant is fatty alcohol polyoxyethylene ether.

[0011] Furthermore, it is convenient to improve the performance of concrete.

[0012] A method for preparing a concrete composite admixture, applicable to the above-mentioned concrete composite admixture, comprises the following steps:

[0013] S1. Material storage: The staff prepares materials according to work needs, and classifies the materials into solid and liquid states. Each material is stored separately, and the constant temperature and humidity in the storage device are fully guaranteed to effectively ensure the effect and quality of material storage. The corresponding feeding equipment is connected to the discharge end of the storage device to realize directional and quantitative material transportation;

[0014] S2. Material crushing: transport the solid material to the material crushing equipment, and fully mix the material during the crushing process;

[0015] S3, material mixing: the crushed material is transported to the mixing equipment, and the liquid material is also transported to the mixing equipment to achieve full mixing of the materials;

[0016] S4, preparation and storage: Directly transport the mixed materials for filling and packaging.

[0017] Compared with the prior art, the present invention can crush and mix materials, and can preserve materials, so that the materials are easily mixed with concrete and can play a role in the concrete body.

[0018] Preferably, the storage device is a material storage device, the feeding device is a material lifting and conveying device, the material crushing device is a material crushing device, and the stirring device is a material mixing device.

[0019] Furthermore, the storage, crushing and mixing of materials can be effectively realized.

[0020] Preferably, the discharge end of the material crushing device is connected to a negative pressure device, and the output end of the negative pressure device is installed on the material mixing device.

[0021] Furthermore, negative pressure adsorption can be effectively realized, and the crushed materials can enter the material mixing equipment to facilitate mixing between the materials.

[0022] Preferably, a motor assembly is provided in the material crushing equipment, an inclined plate member is sealed in the motor assembly, a motor assembly is installed on the inclined plate member, a screen plate member is rotatably sleeved on the top of the crushing box, a shaft member is rotatably sleeved on the middle of the screen plate member, the lower end of the shaft member extends to the lower end of the screen plate member, three bevel gear transmission assemblies are commonly installed on the lower end of the shaft member, the upper end of the motor assembly and one end side wall of the crushing box, two crushing rollers and two scraper members are installed on the shaft member, and the two crushing rollers and the two scraper members are staggered.

[0023] Furthermore, the material can be fully crushed effectively.

[0024] Preferably, the three-bevel gear transmission assembly consists of a transverse shaft and three bevel gears, one of which is rotatably connected to the transverse shaft, the transverse shaft is rotatably connected to a side wall at one end of the crushing box, and the other two bevel gears are respectively fixed to the upper end of the motor assembly and the lower end of the rotating shaft, one of the bevel gears is located between the other two bevel gears, and the two sides of one of the bevel gears are respectively meshed with the other two bevel gears.

[0025] Furthermore, stable transmission of power can be guaranteed.

[0026] The beneficial effects of the present invention are:

[0027] 1. The motor assembly can drive the three-bevel gear transmission assembly to operate so that the crushing roller and the screen plate work in the opposite direction. At the same time, there is a certain distance between the lower end of the rotating shaft and the upper end of the screen plate. In actual preparation, the rotating shaft can be tilted to facilitate the removal of the medical material from the rotating shaft, so as to better mix it. At the same time, the motor assembly can be controlled to reciprocate intermittently, which can improve the crushing effect.

[0028] 2. One of the bevel gears is located between the other two bevel gears, and the two sides of one of the bevel gears are meshed with the other two bevel gears respectively, which can fully realize the stable transmission of force, enable the rotating shaft and the screen plate to rotate in opposite directions, and enable the crushing roller to grind and crush the solid materials on the screen plate, so that the materials are fully crushed;

[0029] 3. During actual production and preparation, solid materials will be transported into the material crushing equipment for crushing operations, and liquid materials can be transported into the material mixing equipment together with the crushed materials for mixing operations. At the same time, during actual installation and preparation, the material storage equipment for solid material storage is connected to the material crushing equipment through the material lifting and conveying equipment at its lower end, and the material storage equipment for liquid material storage is connected to the material mixing equipment through the material lifting and conveying equipment at its lower end, and the material crushing equipment is connected to the material mixing equipment through the negative pressure equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A step diagram of a method for preparing a concrete composite admixture proposed by the present invention;

[0031] Figure 2 A diagram showing the connection structure of a preparation device for a method for preparing a composite concrete admixture proposed by the present invention;

[0032] Figure 3 This is an internal structure diagram of a material crushing device in a method for preparing a concrete composite admixture proposed by the present invention;

[0033] In the figure: 1 material storage equipment, 2 material lifting and conveying equipment, 3 material crushing equipment, 31 motor assembly, 32 crushing box, 33 inclined plate member, 34 three-bevel gear transmission assembly, 35 scraper member, 36 crushing roller, 37 screen plate member, 38 rotating shaft member, 4 material mixing equipment, 5 negative pressure equipment. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] A concrete composite admixture is prepared from the following raw materials: silicate; the silicate is any one of potassium silicate and lithium silicate, which can effectively improve the early strength so as to fully improve the strength of concrete, and has strong antifreeze ability; a large amount of hydrated calcium silicate gel is formed during the hardening process, so that the cement stone is dense and not easy to produce shrinkage cracks; ultra-nano aluminum sol; ultra-nano aluminum sol uses nano alumina solution; it can effectively improve mechanical properties and enhance durability; high temperature and wear-resistant filler; the high temperature and wear-resistant filler is chromium trioxide, which prolongs the service life; surfactant; the surfactant is any one of high fluorinated alkyl sulfonate, polyether siloxane or fluorocarbon surfactant; it can improve the mixing rheological properties of concrete, adjust Setting time and hardening performance, improving durability; defoaming agent; the defoaming agent is any one of ethylene glycol siloxane, polydimethylsiloxane, polyoxypropylene oxyethylene glycerol ether, polyoxyethylene ether, polyoxyethylene and polypropylene pentaerythritol ether, which can reduce the generation of bubbles and make the internal condensation of concrete more compact; penetrant; the penetrant is fatty alcohol polyoxyethylene ether, which can more comprehensively improve the performance of concrete; the weight ratio of deionized water, silicate, ultra-nano aluminum sol, high temperature and wear-resistant filler, surfactant, defoaming agent, penetrant, and deionized water is 20-30 parts: 15-25 parts: 30-40 parts: 5-10 parts: 2-3 parts: 1-2 parts: 60-80 parts; in actual production and preparation, staff.

[0036] Reference Figure 1-3 A method for preparing a concrete composite admixture, which is applicable to the above-mentioned concrete composite admixture, comprises the following steps:

[0037] S1. Material storage: The staff prepares materials according to work needs, and classifies the materials into solid and liquid states. Each material is stored separately, and the constant temperature and humidity in the storage device are fully guaranteed to effectively ensure the effect and quality of material storage. The corresponding feeding equipment is connected to the discharge end of the storage device to realize directional and quantitative material transportation;

[0038] S2. Material crushing: transport the solid material to the material crushing equipment, and fully mix the material during the crushing process;

[0039] S3, material mixing: the crushed material is transported to the mixing equipment, and the liquid material is also transported to the mixing equipment to achieve full mixing of the materials;

[0040] S4, preparation and storage: Directly transport the mixed materials for filling and packaging.

[0041] Reference Figure 1-3The storage device adopts material storage device 1, the feeding device adopts material lifting and conveying equipment 2, the material crushing equipment adopts material crushing equipment 3, and the stirring equipment adopts material mixing equipment 4. The discharge end of the material crushing equipment 3 is connected with a negative pressure device 5, and the output end of the negative pressure device 5 is installed on the material mixing equipment 4, which can effectively preserve the material and crush the solid material. The powder and the business material are mixed through the material mixing equipment 4 to realize the preparation of the admixture.

[0042] Reference Figure 1-3 The material crushing equipment 3 is provided with a motor assembly 31, an inclined plate 33 is sealed in the motor assembly 31, the motor assembly 31 is installed on the inclined plate 33, the top of the crushing box 32 is rotatably sleeved with a screen plate 37, the middle of the screen plate 37 is rotatably sleeved with a shaft 38, the lower end of the shaft 38 extends to the lower end of the screen plate 37, and three bevel gear transmission assemblies 34 are installed on the lower end of the shaft 38, the upper end of the motor assembly 31 and one end side wall of the crushing box 32, and two The crushing roller 36 and the two scraper members 35 are arranged alternately. The motor assembly 31 can drive the three-way bevel gear transmission assembly 34 to operate so that the crushing roller 36 and the screen plate member 37 operate in reverse. At the same time, there is a certain distance between the lower end of the rotating shaft member 38 and the upper end of the screen plate member 37. In actual preparation, the rotating shaft member 38 can be tilted to facilitate the removal of the medical material from the rotating shaft member 38, which can better mix the material. At the same time, the motor assembly 31 can be controlled to rotate back and forth intermittently, which can improve the crushing effect.

[0043] Reference Figure 3 The three-bevel gear transmission assembly 34 consists of a transverse shaft and three bevel gears, one of which is rotatably connected to the transverse shaft, and the transverse shaft is rotatably connected to the side wall at one end of the crushing box 32, and the other two bevel gears are respectively fixed to the upper end of the motor assembly 31 and the lower end of the rotating shaft 38, one of the bevel gears is located between the other two bevel gears, and the two sides of one of the bevel gears are respectively meshed with the other two bevel gears, which can fully realize the stable transmission of force, enable the rotating shaft 38 and the screen plate 37 to rotate in opposite directions, and enable the crushing roller 36 to grind and crush the solid material on the screen plate 37, so that the material is fully crushed.

[0044] In the present invention, the staff prepares materials according to work needs, and distinguishes the materials according to solid and liquid states, and each material is stored separately, while fully ensuring the constant temperature and humidity in the storage device to effectively ensure the effect and quality of material storage, and the corresponding feeding equipment is connected to the discharge end of the storage device to realize directional and quantitative material transportation;

[0045] The solid material is transported to the material crushing equipment, and the material can be fully mixed during the crushing process; the crushed material is transported to the mixing equipment, and the liquid material is also transported to the mixing equipment to achieve full mixing of the materials;

[0046] The mixed materials are conveyed in a directional manner for filling and packaging.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concrete composite admixture, characterized in that: The invention is prepared from the following raw materials: silicate, ultra-nano aluminum sol, high temperature and wear-resistant filler, surfactant, defoamer, penetrant and deionized water, wherein the weight ratio of the silicate, ultra-nano aluminum sol, high temperature and wear-resistant filler, surfactant, defoamer, penetrant and deionized water is 20-30 parts: 15-25 parts: 30-40 parts: 5-10 parts: 2-3 parts: 1-2 parts: 60-80 parts.

2. A concrete composite admixture according to claim 1, characterized in that: The silicate is any one of potassium silicate and lithium silicate; the ultra-nano aluminum sol is a nano-alumina solution; the high-temperature and wear-resistant filler is chromium trioxide; the surfactant is any one of high-fluorinated alkyl sulfonate, polyether siloxane or fluorocarbon surfactant; the defoaming agent is any one of ethylene glycol siloxane, polydimethylsiloxane, polyoxypropylene oxyethylene glycerol ether, polyoxyethylene ether, polyoxyethylene and polypropylene pentaerythritol ether; the penetrant is fatty alcohol polyoxyethylene ether.

3. A method for preparing a concrete composite admixture, applicable to a concrete composite admixture according to claim 1-2, characterized in that: The following steps are involved: S1. Material storage: The staff prepares materials according to work needs, and classifies the materials into solid and liquid states. Each material is stored separately, and the constant temperature and humidity in the storage device are fully guaranteed to effectively ensure the effect and quality of material storage. The corresponding feeding equipment is connected to the discharge end of the storage device to realize directional and quantitative material transportation; S2. Material crushing: transport the solid material to the material crushing equipment, and fully mix the material during the crushing process; S3, material mixing: the crushed material is transported to the mixing equipment, and the liquid material is also transported to the mixing equipment to achieve full mixing of the materials; S4, preparation and storage: Directly transport the mixed materials for filling and packaging.

4. A concrete composite admixture and a preparation method thereof according to claim 3, characterized in that: The storage device adopts material storage equipment (1), the feeding equipment adopts material lifting and conveying equipment (2), the material crushing equipment adopts material crushing equipment (3), and the stirring equipment adopts material mixing equipment (4).

5. A concrete composite admixture and a preparation method thereof according to claim 4, characterized in that: The discharge end of the material crushing device (3) is connected to a negative pressure device (5), and the output end of the negative pressure device (5) is installed on the material mixing device (4).

6. A concrete composite admixture and a preparation method thereof according to claim 3, characterized in that: The material crushing equipment (3) is provided with a motor assembly (31), an inclined plate member (33) is sealedly installed in the motor assembly (31), and the motor assembly (31) is installed on the inclined plate member (33). The top of the crushing box (32) is rotatably sleeved with a screen plate member (37), and the middle of the screen plate member (37) is rotatably sleeved with a shaft member (38), the lower end of the shaft member (38) extends to the lower end of the screen plate member (37), and three bevel gear transmission assemblies (34) are installed on the lower end of the shaft member (38), the upper end of the motor assembly (31) and one end side wall of the crushing box (32), and two crushing rollers (36) and two scraper members (35) are installed on the shaft member (38), and the two crushing rollers (36) and the two scraper members (35) are arranged alternately.

7. A concrete composite admixture and a preparation method thereof according to claim 6, characterized in that: The three-bevel gear transmission assembly (34) is composed of a transverse shaft and three bevel gears, one of which is rotatably connected to the transverse shaft, and the transverse shaft is rotatably connected to a side wall at one end of the crushing box (32), and the other two bevel gears are respectively fixed to the upper end of the motor assembly (31) and the lower end of the rotating shaft (38), one of which is located between the other two bevel gears, and the two sides of one of the bevel gears are respectively meshed with the other two bevel gears.

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