CN111470792B - Enhanced expansion anti-cracking agent and preparation method thereof - Google Patents
Enhanced expansion anti-cracking agent and preparation method thereof Download PDFInfo
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- CN111470792B CN111470792B CN202010334687.8A CN202010334687A CN111470792B CN 111470792 B CN111470792 B CN 111470792B CN 202010334687 A CN202010334687 A CN 202010334687A CN 111470792 B CN111470792 B CN 111470792B
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- 238000005336 cracking Methods 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 199
- 238000000034 method Methods 0.000 claims abstract description 61
- 230000008569 process Effects 0.000 claims abstract description 39
- 239000002245 particle Substances 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims description 79
- 239000003795 chemical substances by application Substances 0.000 claims description 63
- 238000002156 mixing Methods 0.000 claims description 53
- 238000003756 stirring Methods 0.000 claims description 49
- 238000000227 grinding Methods 0.000 claims description 25
- 241000220317 Rosa Species 0.000 claims description 18
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 7
- 235000019738 Limestone Nutrition 0.000 claims description 6
- 229910052925 anhydrite Inorganic materials 0.000 claims description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000006028 limestone Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 235000019270 ammonium chloride Nutrition 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000003755 preservative agent Substances 0.000 claims description 5
- 230000002335 preservative effect Effects 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 244000241257 Cucumis melo Species 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 238000001035 drying Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000003487 anti-permeability effect Effects 0.000 abstract 2
- 239000000835 fiber Substances 0.000 description 22
- 229920002678 cellulose Polymers 0.000 description 9
- 239000001913 cellulose Substances 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 8
- -1 polypropylene Polymers 0.000 description 8
- 229920001155 polypropylene Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 241000219112 Cucumis Species 0.000 description 4
- 241000209094 Oryza Species 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 241001264174 Cordyceps militaris Species 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
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- 238000011049 filling Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention belongs to the technical field of expansion crack resistance agents, and particularly relates to a reinforced expansion crack resistance agent and a preparation method thereof, wherein the reinforced expansion crack resistance agent comprises a filter box and a support; the filter box is rotationally connected with the bracket through a guide rail; the end face of the right side of the bracket is fixedly connected with a motor, and the motor is electrically connected with a controller through a lead; the motor driving shaft is fixedly connected with a rotating rod; the left end face of the filter box is rotatably connected with a first conduit through a rotating shaft; a filter pipe is fixedly connected in the cavity of the filter box; the invention is mainly used for solving the problems that when some anti-cracking agents are used for concrete, the compensation of drying shrinkage and cold shrinkage in the concrete is insufficient, so that the anti-cracking and anti-permeability capabilities of the concrete are reduced, meanwhile, in the process of manufacturing the anti-cracking agents, because the raw materials cannot be completely crushed in the crushing process, when the anti-cracking agents made of raw materials containing larger particles are used, gaps among particles of the anti-cracking agents can be increased, and the anti-cracking effect and the anti-permeability of the anti-cracking agents can be reduced.
Description
Technical Field
The invention belongs to the technical field of expansion crack resistance agents, and particularly relates to an enhanced expansion crack resistance agent and a preparation method thereof.
Background
Concrete is the most widely and important basic material in building engineering at present. The novel concrete has the characteristics of unique compressive strength, bonding strength, cast-in-place forming, water curing, firmness and durability and the like, so that an irreplaceable position is obtained. However, it also has some critical drawbacks, such as: the tensile strength is low, the ultimate tensile strain is small, and cracking is easily formed during plastic shrinkage, so that the water seepage prevention capability is insufficient, and the strength index of engineering is directly hindered in severe cases. Therefore, cracking and water seepage resistance have been a long-standing problem with concrete applications. The technical scheme that at present is solved is that during construction, water reducing treatment is carried out according to the adopted cement characteristics and sand and stone characteristics in the concrete pouring process, the water cement ratio is increased to control the early expansion rate, the control on the shrinkage rate is realized, the strength reduction and leakage caused by cracks in later hardening are prevented, and the introduction of the expansion crack resistance agent can be referred to in the journal period: the concrete admixture production technology and the application of the new-development academic exchange conference proceedings.2012 (04), however, some problems still exist in the current production process of the expansion crack-resistant agent, and specifically include the following aspects:
when some anti-cracking agents in the current market are used for concrete, the compensation of drying shrinkage and cold shrinkage in the concrete is insufficient, so that the anti-cracking and anti-seepage capabilities of the concrete are reduced, meanwhile, in the process of manufacturing the anti-cracking agents, because raw materials cannot be completely crushed in the crushing process, some larger particle raw materials can be remained sometimes, and when the anti-cracking agents made of the larger particle raw materials are used, gaps among particles of the anti-cracking agents can be increased, so that the anti-cracking effect and the anti-seepage performance of the anti-cracking agents can be reduced.
In the prior art, liquid has related cases, for example, patent No. 102329093A, the patent name is a patent of a preparation method of a concrete expanding agent, the technical scheme is that 70-85% of limestone, 8-15% of white mud, 2-5% of gypsum and 2-5% of iron powder are jointly ground and calcined into expanded clinker at 1350-1450 ℃. The expansion clinker contains 12-23% C3S,50-70% free CaO,5-15% C4AF,5-10% C3A. The clinker is then ground into an expanding agent together with anhydrite, metakaolin, high-alumina clinker or calcined diatomite according to a proportion. The concrete expanding agent has the disadvantages of poor weathering resistance of clinker and short storage time of the expanding agent.
In view of the above, in order to overcome the above technical problems, the present inventors designed and developed an enhanced expansion crack resistant agent and a preparation method thereof, and manufactured a special filtering and mixing device, thereby solving the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides an enhanced expansion anti-cracking agent and a preparation method thereof, and the enhanced expansion anti-cracking agent is mainly used for solving the problems that when some anti-cracking agents in the current market are used for concrete, the compensation of drying shrinkage and cold shrinkage in the concrete is not enough, so that the anti-cracking and anti-seepage capabilities of the concrete are reduced, meanwhile, in the process of preparing the anti-cracking agent, because the raw materials cannot be completely crushed in the crushing process, some larger particle raw materials sometimes remain, and when the anti-cracking agent prepared from the larger particle raw materials is used, the gaps among the particles of the anti-cracking agent can be enlarged, so that the anti-cracking effect and the anti-seepage performance of the anti-cracking agent can be reduced.
The technical scheme adopted by the invention for solving the technical problem is as follows: the invention relates to an enhanced expansion crack resistance agent; the method comprises the following raw materials:
20-25 parts of mineral powder, 15-20 parts of fly ash, 10-13 parts of sand, 15-18 parts of melon and rice stone, 10-13 parts of anhydrite, 3-5 parts of limestone, 4-7 parts of aluminum powder, 3-5 parts of ammonium chloride, 4-7 parts of anti-cracking permeability-reducing agent, 3-6 parts of additive, 5-8 parts of expanding agent and 2-3 parts of water reducing agent.
Preferably, the raw material further comprises high molecular cellulose;
the high molecular cellulose selected from the raw materials is a gel forming agent, and has stronger viscosity, so that the gel forming agent can compensate drying shrinkage and cold shrinkage of concrete in the hardening process, fibers are uniformly dispersed in the concrete to form a disorientation supporting system, the directional stress of the concrete is dispersed, the occurrence and development of early concrete plastic cracks are prevented, the crack resistance and impermeability of the concrete are greatly improved, the toughness of the concrete is improved, the service life of the concrete is prolonged, the fibers also have certain strength, the fibers are uniformly dispersed in the concrete to form an anchoring effect, certain damage energy can be instantly absorbed, the stress of the concrete during plastic shrinkage and freeze thawing can be reduced, meanwhile, the segregation of aggregate can be effectively hindered by adding numerous fiber monofilaments, the uniform bleeding property of the concrete in the early stage is ensured, and the formation of cracks is reduced.
Preferably, the high molecular cellulose contains polypropylene fibers and high-strength high-modulus pva fibers;
the polypropylene fiber contained in the high-molecular cellulose is a polypropylene fiber for engineering, when the anti-cracking agent prepared by the invention is added into concrete, the polypropylene fiber forms a secondary reinforcement effect in the concrete, so that expansion components are more fully exerted under the limited condition, the formed superposition effect enables the concrete to be more compact, the durability is improved, the occurrence of cracking is reduced and avoided, and the fracture toughness of the concrete is improved.
A preparation method of an enhanced expansion crack resistance agent comprises the following steps:
s1: independently taking out the sand, the melon and rice stone, the anhydrite and the limestone in the raw materials, carrying out impurity removal treatment on the raw materials, sampling the raw materials after the impurity removal treatment is finished, carrying out an alkaline test, and taking out the raw materials after the test is qualified; the quality and the performance of the prepared anti-cracking agent can be improved by removing impurities from the raw materials, and the alkalinity in the raw materials can be prevented from being too high by performing an alkalinity test on the raw materials, so that the anti-cracking effect of the anti-cracking agent is reduced;
s2: sequentially putting the detected raw materials in the step S1 into a crushing device, and crushing the raw materials for 30-40 minutes, wherein the crushing number of the raw materials is 120-150 meshes; by crushing the raw materials, the mixing degree of the raw materials can be improved, so that the anti-cracking effect and the anti-seepage performance of the anti-cracking agent are indirectly improved;
s3: when the raw material in the S2 is crushed for 10-15 minutes, sequentially putting the mineral powder and the fly ash aluminum powder in the raw material into a crushing device for crushing and mixing, and taking out the raw material in the crushing device for later use after crushing; the raw materials can be fully mixed with the crushed raw materials by adding the raw materials into the crushing device, so that the cracking resistance effect of the cracking resistance agent is prevented from being reduced due to insufficient mixing of the raw materials;
s4: putting the crushed raw materials in the step S3 into a filtering and mixing device for filtering and mixing, and after the raw materials in the mixing device are filtered and screened, sequentially putting ammonium chloride, an anti-cracking anti-seepage agent, an expanding agent and a water reducing agent in the raw materials into the filtering and mixing device; the raw materials are placed into the filtering and mixing device for filtering and mixing, so that larger particles in the raw materials can be separated out, the phenomenon that the mixing degree among the raw materials is influenced due to the existence of the overlarge particles in the raw materials is prevented, and the performance of the anti-cracking agent can be improved by adding the raw materials into the filtering and mixing device;
s5: after the raw materials in the S4 are mixed, taking out the raw materials in the filtering and mixing device, putting the raw materials into a sealed container, and adding a proper amount of preservative into the container to obtain the enhanced expansion anti-cracking agent; the storage time of the raw materials can be improved by adding a preservative to the mixed raw materials.
Preferably, the filtering and mixing device comprises a filtering tank and a bracket; the filter box is rotationally connected with the bracket through a guide rail; the end face of the right side of the bracket is fixedly connected with a motor, and the motor is electrically connected with a controller through a lead; the motor driving shaft is fixedly connected with a rotating rod, and the other end of the rotating rod is fixedly connected with the end face of the right side of the filter box; the left end face of the filter box is rotatably connected with a first conduit through a rotating shaft, and the other end of the first conduit is fixedly connected with the left end face of the bracket; a filter pipe is fixedly connected in the cavity of the filter box, and the filter pipe is designed in an inclined manner; uniformly distributed filter holes are formed in the inner wall of the filter pipe; the inner surface of the filter pipe is fixedly connected with a spiral strip in the inner wall of the filter pipe; the end face of the right side of the filter pipe extends out of the filter box; the end face of the right side of the filter pipe is fixedly connected with a feed pipe, and the top of the feed pipe is fixedly connected with a top cover; the left end surfaces of the filter pipes correspond to the first guide pipes; a grinding box is fixedly connected to the left end face of the support below the first guide pipe; an air pump is fixedly connected in the grinding box; a second conduit is fixedly connected in the inner wall of the grinding box and is communicated with the first conduit; a third conduit is fixedly connected in the inner wall of the grinding box at the left side of the second conduit, and the other end of the third conduit is communicated with the first conduit; the inner surface of the filter box is fixedly connected with first stirring plates which are uniformly arranged in the inner wall of the filter pipe, and the first stirring plates are all designed in an inclined manner; first filter tanks which are uniformly distributed are arranged in the inner wall of each first stirring plate; a second stirring plate is fixedly connected between every two first stirring plates, and a second filtering groove is formed in the inner wall of each second stirring plate; a discharge port is formed in the inner wall of the filter box, and a control valve is installed in the discharge port;
when the anti-cracking agent is used, the anti-cracking agent is prepared, the larger particles existing in the raw materials can be separated by using the filtering device in the mixing process, the larger particles are crushed by the grinding device, the mixing degree among the raw materials can be improved in the process, so that the performance of the anti-cracking agent is improved, when the raw materials need to be filtered and mixed, the raw materials are firstly put into the feeding pipe, the top cover of the feeding pipe is closed and the motor is controlled to rotate, the rotating rod can be driven to rotate in the rotating process of the motor, the rotating rod is fixedly connected with the filtering box, so that the filtering box can be driven to rotate, the feeding pipe falls into the feeding pipe and controls the motor to rotate, the rotating rod can be driven to rotate in the filtering pipe in the rotating process, and the filtering pipe can be driven to rotate towards the inner wall of the filtering box, so that the filtering pipe can be driven to rotate towards the inner wall of the filtering pipe, and the filtering pipe can be driven to rotate towards the inner wall of the filtering box, and the filtering pipe can be driven to rotate towards the inner wall of the filtering pipe, so that the filtering pipe can be driven to rotate towards the inner wall of the filtering pipe when the filtering box is rotated, and the filtering pipe, and the filtering pipe is designed, so that the filtering pipe can be driven to rotate, and the filtering pipe can be driven to rotate, because the spiral strip is fixedly connected in the filter pipe, thereby the raw material can be pushed to roll, the raw material is prevented from being accumulated in the filter pipe, when larger particles roll into the first guide pipe, the raw material in the first guide pipe can fall into the grinding box through the second guide pipe, the raw material falling into the grinding box is ground again, after all raw material grinding is finished, the controller controls the air pump to blow air at the moment, the ground raw material can be blown into the filter pipe through the third guide pipe in the air pump blowing process, the raw material blown into the filter pipe can fall into the filter box from the uniformly arranged filter holes, the air flow can continue to be blown by the air pump, the air flow can flow into the filter pipe through the third guide pipe, the air flowing into the filter pipe can be blown into the filter box through the uniformly arranged filter holes, the raw material in the filter box can be blown in the process, thereby the mixing degree between the raw materials can be improved, because the uniformly arranged first stirring plate is fixedly connected in the inner wall of the filter box, and the first stirring plate is provided with a first stirring groove in the inner wall of the first stirring plate, the process that the raw material is driven to rotate by the filter box, thereby the diffusion degree of the raw material can be improved, the mixing degree of the second raw material can be further improved, the mixing degree of the filter box, and the mixing control device is provided in the inner wall of the filter box, and the second mixing control of the filter box, and the second raw material is provided in the mixing groove, and the mixing groove, after the mixing control of the second mixing groove is provided in the filter box, and the mixing groove is provided with the mixing groove.
Preferably, the upper surface of each second stirring plate is fixedly connected with a baffle plate at the two sides of the second stirring plate; round rods which are uniformly distributed are fixedly connected between the two baffles, and the number of the round rods is two; the outer surfaces of the two round rods are rotationally connected with rotating plates which are uniformly arranged; the rotating blades of each rotating plate are provided with uniformly arranged contacts; each contact is designed in a telescopic manner;
the during operation, because second stirring board upper surface links firmly the round bar of evenly arranging through the baffle, and the round bar surface all rotates and is connected with the commentaries on classics board of evenly arranging, at rose box pivoted in-process, because the commentaries on classics board receives the impact force of raw materials, thereby can rotate, can strike the raw materials at commentaries on classics board pivoted in-process, can clap the raw materials at this in-process and scatter, thereby can prevent that the raw materials from piling up in the rose box, can also improve the diffusion degree of raw materials simultaneously, thereby further improve the mixed degree of raw materials, because all be equipped with evenly arranged contact on every commentaries on classics board's the commentaries on classics leaf, and the contact is concertina type design, commentaries on classics board pivoted in-process can drive the contact and rotate, can overturn the raw materials at contact pivoted in-process, thereby can improve the mixed degree between the raw materials, simultaneously can also dredge the second filter-tank, thereby prevent to pile up the raw materials in the second filter-tank.
The invention has the following beneficial effects:
1. according to the invention, by adding the high-molecular cellulose which is a gel forming agent and has stronger viscosity, the drying shrinkage and cold shrinkage of concrete in the hardening process can be compensated, the fibers are uniformly dispersed in the concrete to form a disorientation supporting system, the directional stress of the concrete is dispersed, the occurrence and development of early concrete plastic cracks are prevented, the crack resistance and permeability resistance of the concrete are greatly improved, the toughness of the concrete is improved, the service life of the concrete is prolonged, meanwhile, the fibers also have certain strength, the fibers are uniformly dispersed in the concrete to form an anchoring effect, certain damage energy can be absorbed instantly, the stress of the concrete in plastic shrinkage and freeze thawing can be reduced, meanwhile, the segregation of aggregate can be effectively hindered by adding numerous fiber monofilaments, the early uniform bleeding of the concrete is ensured, and the formation of settlement cracks is reduced.
2. According to the invention, by arranging the rotating plate, in the rotating process of the filter box, the rotating plate can rotate due to the impact force of the raw materials, the raw materials can be impacted in the rotating process of the rotating plate, the raw materials can be scattered in the process, so that the raw materials can be prevented from being accumulated in the filter box, and meanwhile, the diffusion degree of the raw materials can be improved, so that the mixing degree of the raw materials is further improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a front view of the filtering and mixing device of the present invention;
FIG. 3 is a cross-sectional view of the filtration mixing apparatus of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
in the figure: the device comprises a filter box 1, a first conduit 11, a filter pipe 12, a filter hole 13, a spiral strip 14, a feed pipe 15, a top cover 16, a grinding box 17, an air pump 18, a second conduit 19, a third conduit 191, a first stirring plate 192, a first filter tank 193, a second stirring plate 194, a second filter tank 195, a discharge hole 196, a baffle 197, a rotating plate 198, a contact 199, a bracket 2, a motor 21 and a rotating rod 22.
Detailed Description
A cordyceps militaris polypeptide according to an embodiment of the present invention is described below with reference to FIGS. 1 to 4.
As shown in fig. 1-4, an enhanced expansion crack inhibitor according to the present invention; the method comprises the following raw materials:
20-25 parts of mineral powder, 15-20 parts of fly ash, 10-13 parts of sand, 15-18 parts of melon and rice stone, 10-13 parts of anhydrite, 3-5 parts of limestone, 4-7 parts of aluminum powder, 3-5 parts of ammonium chloride, 4-7 parts of anti-cracking permeability-reducing agent, 3-6 parts of additive, 5-8 parts of expanding agent and 2-3 parts of water reducing agent.
In one embodiment of the present invention, the raw material further comprises polymeric cellulose;
the polymer cellulose selected from the raw materials is a gel forming agent, and has stronger viscosity, so that the dry shrinkage and cold shrinkage of concrete in the hardening process can be compensated, the fibers are uniformly dispersed in the concrete to form a disorientation supporting system, the directional stress of the concrete is dispersed, the occurrence and the development of early concrete plastic cracks are prevented, the crack resistance and the permeability resistance of the concrete are greatly improved, the toughness of the concrete is improved, the service life of the concrete is prolonged, meanwhile, the fibers also have certain strength, the fibers are uniformly dispersed in the concrete to form an anchoring effect, and can instantly absorb certain damage energy, so that the stress of the concrete during plastic shrinkage and freeze thawing can be reduced, meanwhile, the addition of countless fiber monofilaments can effectively hinder the segregation of aggregates, the uniform bleeding performance of the concrete in the early stage is ensured, and the formation of early settlement cracks is reduced.
In one embodiment of the invention, the polymeric cellulose contains polypropylene fibers and high-strength high-modulus pva fibers;
the polypropylene fiber contained in the high-molecular cellulose is a polypropylene fiber for engineering, when the anti-cracking agent prepared by the invention is added into concrete, the polypropylene fiber forms a secondary reinforcement effect in the concrete, so that expansion components are more fully exerted under the limited condition, the formed superposition effect enables the concrete to be more compact, the durability is improved, the occurrence of cracking is reduced and avoided, and the fracture toughness of the concrete is improved.
A preparation method of an enhanced expansion crack resistance agent comprises the following steps:
s1: taking out the sand, the melon and rice stone, the anhydrite and the limestone in the raw materials separately, removing impurities from the raw materials, sampling the raw materials after the impurity removal treatment is finished, carrying out an alkaline test, and taking out the raw materials after the test is qualified; the quality and the performance of the prepared anti-cracking agent can be improved by removing impurities from the raw materials, and the alkalinity in the raw materials can be prevented from being too high by performing an alkalinity test on the raw materials, so that the anti-cracking effect of the anti-cracking agent is reduced;
s2: sequentially putting the detected raw materials in the step S1 into a crushing device, and crushing the raw materials for 30-40 minutes, wherein the crushing number of the raw materials is 120-150 meshes; by crushing the raw materials, the mixing degree of the raw materials can be improved, so that the anti-cracking effect and the anti-seepage performance of the anti-cracking agent are indirectly improved;
s3: when the raw material in the S2 is crushed for 10-15 minutes, sequentially putting the mineral powder and the fly ash aluminum powder in the raw material into a crushing device for crushing and mixing, and taking out the raw material in the crushing device for later use after crushing; the raw materials can be fully mixed with the crushed raw materials by adding the raw materials into the crushing device, so that the cracking resistance effect of the anti-cracking agent is prevented from being reduced due to insufficient mixing of the raw materials;
s4: putting the crushed raw materials in the step S3 into a filtering and mixing device for filtering and mixing, and after the raw materials in the mixing device are filtered and screened, sequentially putting ammonium chloride, an anti-cracking anti-seepage agent, an expanding agent and a water reducing agent in the raw materials into the filtering and mixing device; the raw materials are placed into the filtering and mixing device for filtering and mixing, so that larger particles in the raw materials can be separated out, the phenomenon that the mixing degree among the raw materials is influenced due to the existence of the overlarge particles in the raw materials is prevented, and the performance of the anti-cracking agent can be improved by adding the raw materials into the filtering and mixing device;
s5: after the raw materials in the S4 are mixed, taking out the raw materials in the filtering and mixing device, filling the raw materials into a sealed container, and adding a proper amount of preservative into the container to obtain the enhanced expansion anti-cracking agent; the storage time of the raw materials can be improved by adding a preservative to the mixed raw materials.
As an embodiment of the present invention, wherein the filtering and mixing device includes a filtering tank 1 and a bracket 2; the filter box 1 is rotationally connected with the bracket 2 through a guide rail; the end face of the right side of the bracket 2 is fixedly connected with a motor 21, and the motor 21 is electrically connected with a controller through a lead; a rotating rod 22 is fixedly connected to a driving shaft of the motor 21, and the other end of the rotating rod 22 is fixedly connected with the right end face of the filter box 1; the left end face of the filter box 1 is rotatably connected with a first conduit 11 through a rotating shaft, and the other end of the first conduit 11 is fixedly connected with the left end face of the bracket 2; a filter pipe 12 is fixedly connected in the cavity of the filter box 1, and the filter pipe 12 is designed to be inclined; the inner wall of the filtering pipe 12 is provided with uniformly arranged filtering holes 13; the inner surface of the filtering pipe 12 is fixedly connected with a spiral strip 14 in the inner wall of the filtering pipe 12; the end face of the right side of the filter pipe 12 extends out of the filter box 1; a feeding pipe 15 is fixedly connected to the end face of the right side of the filtering pipe 12, and a top cover 16 is fixedly connected to the top of the feeding pipe 15; the left end faces of the filter pipes 12 correspond to the first guide pipe 11; a grinding box 17 is fixedly connected to the left end face of the support 2 below the first guide pipe 11; an air pump 18 is fixedly connected in the grinding box 17; a second conduit 19 is fixedly connected in the inner wall of the grinding box 17, and the second conduit 19 is communicated with the first conduit 11; a third conduit 191 is fixedly connected in the inner wall of the grinding box 17 at the left side of the second conduit 19, and the other end of the third conduit 191 is communicated with the first conduit 11; the inner surface of the filter box 1 is fixedly connected with first stirring plates 192 which are uniformly arranged in the inner wall of the filter pipe 12, and the first stirring plates 192 are all designed in an inclined manner; first filter tanks 193 which are uniformly distributed are arranged in the inner wall of each first stirring plate 192; a second stirring plate 194 is fixedly connected between every two first stirring plates 192, and a second filtering groove 195 is formed in the inner wall of each second stirring plate 194; a discharge hole 196 is formed in the inner wall of the filter box 1, and a control valve is arranged in the discharge hole 196;
when the anti-cracking agent is used, the crack resistance among anti-cracking agent particles is increased in the process of using the anti-cracking agent prepared from the raw materials containing larger particles, so that the anti-cracking effect and the anti-seepage performance of the anti-cracking agent are reduced, the crack resistance of the anti-cracking agent is weakened, the anti-cracking agent is prepared, the larger particles existing in the raw materials can be separated by using a filtering device in the mixing process, the larger particles are crushed by a grinding device, the mixing degree among the raw materials can be improved in the process, so that the performance of the anti-cracking agent is improved, when the raw materials are required to be filtered and mixed, the raw materials are firstly put into a feeding pipe 15, a top cover 16 of the feeding pipe 15 is closed and the motor 21 is controlled to rotate, the rotating rod 22 can be driven to rotate in the rotating process of the motor 21, the rotating rod 22 is fixedly connected with the filtering box 1, so that the filtering box 1 can drive the rotating pipe 12 to rotate, and the filtering pipe 12 can be driven to rotate in the filtering box 12, and the filtering pipe 12 can be driven to rotate in the filtering box, and the filtering pipe 12 can be driven to rotate in the filtering box 12, and the filtering pipe 12 can be driven to rotate, and the filtering pipe 12 can be arranged in the filtering box, and the filtering pipe 12, so that the filtering pipe 12 can be rotated in the filtering box, and the filtering pipe 12 can be rotated, and the filtering pipe 12, and the filtering box can be uniformly, the granules with larger size continuously roll to the lower part of the filter pipe 12, the spiral strip 14 is fixedly connected in the filter pipe 12, so that the raw materials can be pushed to roll, the raw materials are prevented from being accumulated in the filter pipe 12, when the larger granules roll to the first conduit 11, the raw materials in the first conduit 11 can fall into the grinding box 17 through the second conduit 19, the raw materials falling into the grinding box 17 are ground again, after all the raw materials are ground, the controller controls the air pump 18 to blow air at the moment, the ground raw materials can be blown into the filter pipe 12 through the third conduit 191 in the air blowing process of the air pump 18, the raw materials blown into the filter pipe 12 can fall into the filter box 1 from the uniformly arranged filter holes 13, at the moment, the air is continuously blown by the air pump 18, and the air flow can flow into the filter pipe 12 through the third conduit 191, the gas that flows into in the filter tube 12 blows into the rose box 1 through the filtration pore 13 of evenly arranging, can blow the raw materials in the rose box 1 at this in-process, thereby can improve the mixed degree between the raw materials, because linked firmly the first stirring board 192 of evenly arranging in the rose box 1 inner wall, and all seted up first filter-tank 193 in the first stirring board 192 inner wall, it can improve the diffusion degree of raw materials to drive the raw materials pivoted in-process at rose box 1, thereby can improve the mixed degree of raw materials, because linked firmly the second stirring board 194 of evenly arranging in the rose box 1 inner wall, and set up second filter-tank 195 in the second stirring board 194 inner wall, thereby can further improve the mixed degree between the raw materials, controller accuse control valve opens and emits the raw materials after the raw materials mixes.
As an embodiment of the present invention, the upper surface of each second stirring plate 194 is fixedly connected with a baffle 197 at two sides of the second stirring plate 194; round rods which are uniformly arranged are fixedly connected between the two baffles 197, and the number of the round rods is two; the outer surfaces of the two round rods are rotatably connected with rotating plates 198 which are uniformly arranged; the rotating blades of each rotating plate 198 are provided with evenly arranged contacts 199; each of the contacts 199 is of a telescoping design;
in operation, because second stirring board 194 upper surface links firmly the round bar of evenly arranging through baffle 197, and the round bar surface all rotates and is connected with the commentaries on classics board 198 of evenly arranging, at rose box 1 pivoted in-process, because commentaries on classics board 198 receives the impact force of raw materials, thereby can rotate, can strike the raw materials at commentaries on classics board 198 pivoted in-process, can beat the raw materials at this in-process, thereby can prevent that the raw materials from piling up in rose box 1, can also improve the diffusion degree of raw materials simultaneously, thereby further improve the mixed degree of raw materials, because all be equipped with evenly arranged contact 199 on every commentaries on classics board 198's the commentaries on classics leaf, and contact 199 is the concertina type design, commentaries on classics board 198 pivoted in-process can drive contact 199 and rotate, can overturn the raw materials at contact 199 pivoted in-process, thereby can improve the mixed degree between the raw materials, simultaneously can also dredge the second filter tank 195, thereby prevent to pile up the raw materials in the second filter tank 195.
The specific working process is as follows:
when the filter box is in work, when raw materials need to be filtered and mixed, the raw materials are firstly put into the feeding pipe 15, the top cover 16 of the feeding pipe 15 is closed, the motor 21 is controlled to rotate, the rotating rod 22 can be driven to rotate in the rotating process of the motor 21, the rotating rod 22 is fixedly connected with the filter box 1, so that the filter box 1 can be driven to rotate, the raw materials in the feeding pipe 15 roll down into the filter pipe 12 due to the overturning force exerted on the raw materials in the rotating process of the filter box 1, the filter pipe 12 is fixedly connected with the filter box 1, so that the filter pipe 12 can be driven to rotate, the raw materials can be driven to overturn in the filter pipe 12 in the rotating process of the filter pipe 12, the filter pipe 12 is designed to be inclined, the inner wall of the filter pipe 12 is provided with uniformly arranged filter holes 13, and the raw materials in the filter pipe 12 roll towards the lower end of the filter pipe 12 in the rotating process of the filter pipe 12, raw material particles with normal size can fall into a cavity of the filter box 1 through the filter holes 13 in the process of rolling the raw material, particles with larger size continuously roll to the lower part of the filter pipe 12, the spiral strips 14 are fixedly connected in the filter pipe 12, so that the raw material can be pushed to roll to prevent the raw material from being accumulated in the filter pipe 12, when the larger particles roll into the first pipe 11, the raw material in the first pipe 11 can fall into the grinding box 17 through the second pipe 19, the raw material falling into the grinding box 17 is ground again, after all the raw material grinding is finished, the controller controls the air pump 18 to blow air at the moment, the ground raw material can be blown into the filter pipe 12 through the third pipe 191 in the process of blowing the air pump 18, the raw material blown into the filter pipe 12 can fall into the filter box 1 from the uniformly arranged filter holes 13, and then the air pump 18 continues to blow air, the air current can flow into the filter tube 12 through the third pipe 191, the gas that flows into in the filter tube 12 blows into the rose box 1 through the filtration pore 13 of evenly arranging, can blow the raw materials in the rose box 1 at this in-process, thereby can improve the mixed degree between the raw materials, because linked firmly first stirring board 192 of evenly arranging in the rose box 1 inner wall, and all seted up first filter-tank 193 in the first stirring board 192 inner wall, can improve the diffusion degree of raw materials at rose box 1 drive raw materials pivoted in-process, because linked firmly the second stirring board 194 of evenly arranging in the rose box 1 inner wall, and set up second filter-tank 195 in the second stirring board 194 inner wall, controller accuse control valve opens and emits the raw materials after the raw materials mixes.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A preparation method of an enhanced expansion crack resistance agent is characterized by comprising the following steps: the method comprises the following steps:
s1: taking out the sand, the melon and rice stone, the anhydrite and the limestone in the raw materials separately, removing impurities, sampling the raw materials for an alkaline test after the impurity removal treatment is finished, and taking out the raw materials after the test is qualified;
s2: sequentially putting the detected raw materials in the step S1 into a crushing device, and crushing the raw materials for 30-40 minutes, wherein the crushed meshes of the raw materials are 120-150 meshes;
s3: when the raw material in the S2 is crushed for 10-15 minutes, sequentially putting the mineral powder, the fly ash and the aluminum powder into a crushing device for crushing and mixing, and taking out the raw material in the crushing device for later use after crushing;
s4: putting the crushed raw materials in the step S3 into a filtering and mixing device for filtering and mixing, and after the raw materials in the mixing device are filtered and screened, sequentially putting ammonium chloride, an anti-cracking and anti-seepage agent, an expanding agent and a water reducing agent into the filtering and mixing device;
s5: after the raw materials in the S4 are mixed, taking out the raw materials in the filtering and mixing device, putting the raw materials into a sealed container, and adding a proper amount of preservative into the container to obtain the enhanced expansion anti-cracking agent;
wherein, the filtering and mixing device comprises a filtering box (1) and a bracket (2); the filter box (1) is rotationally connected with the bracket (2) through a guide rail; the motor (21) is fixedly connected to the end face of the right side of the support (2), and the motor (21) is electrically connected with the controller through a lead; a rotating rod (22) is fixedly connected to a driving shaft of the motor (21), and the other end of the rotating rod (22) is fixedly connected with the end face of the right side of the filter box (1); the left end face of the filter box (1) is rotatably connected with a first conduit (11) through a rotating shaft, and the other end of the first conduit (11) is fixedly connected with the left end face of the bracket (2); a filter pipe (12) is fixedly connected in the cavity of the filter box (1), and the filter pipe (12) is designed to be inclined; the inner wall of the filtering pipe (12) is provided with uniformly arranged filtering holes (13); the inner surface of the filtering pipe (12) is fixedly connected with a spiral strip (14) in the inner wall of the filtering pipe (12); the end surface of the right side of the filter pipe (12) extends out of the filter box (1); a feeding pipe (15) is fixedly connected to the end face of the right side of the filtering pipe (12), and a top cover (16) is fixedly connected to the top of the feeding pipe (15); the left end face of the filter pipe (12) corresponds to the first conduit (11); a grinding box (17) is fixedly connected to the left end face of the bracket (2) below the first guide pipe (11); an air pump (18) is fixedly connected in the grinding box (17); a second conduit (19) is fixedly connected in the inner wall of the grinding box (17), and the second conduit (19) is communicated with the first conduit (11); a third conduit (191) is fixedly connected in the inner wall of the grinding box (17) at the left side of the second conduit (19), and the other end of the third conduit (191) is communicated with the first conduit (11); first stirring plates (192) which are uniformly arranged are fixedly connected in the inner wall of the filter box (1), and the first stirring plates (192) are all designed in an inclined manner; first filter tanks (193) which are uniformly distributed are arranged in the inner wall of each first stirring plate (192); a second stirring plate (194) is fixedly connected between every two first stirring plates (192), baffle plates (197) are fixedly connected to the upper surface of each second stirring plate (194) at the two sides of the second stirring plate (194), and a second filtering groove (195) is formed in the inner wall of each second stirring plate (194); a discharge port (196) is formed in the inner wall of the filter box (1), and a control valve is installed in the discharge port (196);
the upper surface of each second stirring plate (194) is fixedly connected with a baffle (197) at the two sides of the second stirring plate (194); round rods which are uniformly arranged are fixedly connected between the two baffle plates (197), and the number of the round rods is two; the outer surfaces of the two round rods are rotatably connected with rotating plates (198) which are uniformly arranged; the rotating blades of each rotating plate (198) are provided with uniformly arranged contacts (199); each contact (199) is of a telescopic design;
when the device works, raw materials are firstly put into the feeding pipe (15), the top cover (16) of the feeding pipe (15) is closed and the motor (21) is controlled to rotate at the moment, the rotating rod (22) can be driven to rotate in the rotating process of the motor (21), the rotating rod (22) is fixedly connected with the filter box (1) so as to drive the filter box (1) to rotate, the raw materials in the feeding pipe (15) roll down into the filter pipe (12) due to the fact that the raw materials are subjected to overturning force in the filter pipe (12) in the rotating process of the filter box (1), the filter pipe (12) is fixedly connected with the filter box (1) so as to drive the filter pipe (12) to rotate, and the raw materials can be driven to overturn in the filter pipe (12) in the rotating process of the filter pipe (12), because the filter pipe (12) is designed in an inclined way, and the inner wall of the filter pipe (12) is provided with the filter holes (13) which are uniformly distributed, in the rotating process of the filter pipe (12), raw materials in the filter pipe (12) roll towards the lower end of the filter pipe (12), raw material particles with normal size can fall into the cavity of the filter box (1) through the filter holes (13) in the rolling process of the raw materials, particles with larger size continuously roll towards the lower part of the filter pipe (12), because the filter pipe (12) is fixedly connected with the spiral strip (14), the raw materials can be further pushed to roll, the raw materials are prevented from being accumulated in the filter pipe (12), when larger particles roll into the first conduit (11), raw materials in the first guide pipe (11) can fall into the grinding box (17) through the second guide pipe (19), the raw materials falling into the grinding box (17) are ground again, after all raw materials are ground, the controller controls the air pump (18) to blow air at the moment, the ground raw materials can be blown into the filter pipe (12) through the third guide pipe (191) in the air blowing process of the air pump (18), the raw materials blown into the filter pipe (12) can fall into the filter box (1) from the uniformly arranged filter holes (13), the air pump (18) continues to blow air at the moment, air flow can flow into the filter pipe (12) through the third guide pipe (191), the air flowing into the filter pipe (12) is blown into the filter box (1) through the uniformly arranged filter holes (13), the raw materials in the filter box (1) can be blown in the process, the mixing degree between the raw materials can be improved, the first stirring plate (192) is fixedly connected to the inner wall of the filter box (1), the first stirring plate (193) is provided with a second stirring groove (194), the inner wall of the second stirring plate (192) is arranged in the filter box (1), and the inner wall of the second stirring groove (194) can be arranged, the inner wall of the filter box (193) and the second stirring groove (194) is arranged in the filter box (194) and the inner wall of the filter box (1) and the filter box (194) can be improved in the process, second stirring board (194) upper surface links firmly the round bar of evenly arranging through baffle (197), and the round bar surface all rotates and is connected with commentaries on classics board (198) of evenly arranging, at rose box (1) pivoted in-process, because commentaries on classics board (198) receive the impact force of raw materials, thereby can rotate, can strike the raw materials at commentaries on classics board (198) pivoted in-process, can beat the raw materials here, thereby can prevent that the raw materials from piling up in rose box (1), can also improve the diffusion degree of raw materials simultaneously, thereby further improve the mixed degree of raw materials, because all be equipped with evenly arranged contact (199) on every commentaries on classics leaf of commentaries on classics board (198), and contact (199) are the concertina shape design, commentaries on classics board (198) pivoted in-process can drive contact (199) and rotate, can overturn the raw materials at contact (199) pivoted in-process, thereby can improve the mixed degree between the raw materials, simultaneously can also dredge second rose box (195), thereby prevent piling up in the second rose box (195), control raw materials is released after the control valve is finished to the raw materials.
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