CN110405921B - Anti-corrosion concrete prefabricated square pile forming process - Google Patents
Anti-corrosion concrete prefabricated square pile forming process Download PDFInfo
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- CN110405921B CN110405921B CN201910711355.4A CN201910711355A CN110405921B CN 110405921 B CN110405921 B CN 110405921B CN 201910711355 A CN201910711355 A CN 201910711355A CN 110405921 B CN110405921 B CN 110405921B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1628—Shapes rectangular
- E02D2200/1635—Shapes rectangular made from single element
Abstract
The invention discloses a forming process of an anti-corrosion concrete prefabricated square pile, which belongs to the field of anti-corrosion concrete pile forming preparation processes and can realize that in the process of mixing slurry, can ensure that additives such as fly ash, mineral powder and the like can be more uniformly mixed in the slurry, and a large amount of bubbles are injected into the concrete slurry in the process of water injection and pulping, a large amount of heat and energy can be generated at the moment when bubbles are exploded by foreign matters, so that cement, sand stone and fine powder in the slurry are mixed more uniformly, the compactness of the concrete is greatly improved, the concentration of sulfate ions which can invade into the concrete is reduced, the pore diameter of capillary pores is refined, the speed of calcium hydroxide separating out from the cement stone is inhibited, the generation of gypsum and ettringite crystals is delayed, the effect of inhibiting the expansion and the damage of the gypsum and ettringite crystals is achieved, and the visible speed of the sulfate corrosion and the damage of the concrete is delayed.
Description
Technical Field
The invention relates to the field of a preparation process of an anti-corrosion concrete pile, in particular to a forming process of an anti-corrosion concrete prefabricated square pile.
Background
Concrete is a generic term for engineering composite materials in which aggregate is cemented into a unitary body by cementitious materials. The term concrete generally refers to cement as the cementing material and sand and stone as the aggregate; the cement concrete, also called as common concrete, is obtained by mixing with water (which may contain additives and admixtures) according to a certain proportion and stirring, and is widely applied to civil engineering.
The technical staff discovers in the process of actual production that concrete materials are relatively good in compression resistance, strength and corrosion resistance in a neutral environment, but in a saline-alkali soil environment, salt ions rich in the saline-alkali soil can be dissolved in solvents such as rainwater, and along with the rainwater, the surfaces of concrete are washed away and corroded, so that the concrete members are failed.
Most of the existing anti-corrosion concrete improves the compactness of the concrete by simply adding fly ash or mineral powder admixture into common portland cement, reduces the concentration of sulfate ions which can invade into the concrete, refines the aperture of capillary pores and inhibits the speed of calcium hydroxide separating out from set cement. The method can delay the generation of gypsum and ettringite crystals, play a role in inhibiting the expansion and the damage of the gypsum and the ettringite crystals, and further play a role in delaying the visible speed of the corrosion and the damage of the concrete sulfate.
However, in the conventional stirring process, the additive fly ash, the mineral powder and the cement slurry are difficult to be uniformly mixed, so that the effect of the additive is poor.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide the forming process of the anti-corrosion concrete prefabricated square pile, which can realize that additives such as fly ash, mineral powder and the like can be more uniformly mixed in slurry in the process of mixing the slurry, greatly increase the compactness of anti-corrosion concrete, reduce the concentration of sulfate ions which can invade into the concrete, refine the pore diameter of capillary pores, greatly reduce the speed of calcium hydroxide separating out from cement stone, greatly delay the generation of gypsum and ettringite crystals, play a role in inhibiting expansion damage and greatly delay the speed of the corrosion damage of concrete sulfate.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A forming process of an anti-corrosion concrete prefabricated square pile comprises the following steps:
s1, primarily selecting raw materials, selecting additives with proper size and excellent phase, namely fly ash blocks and mineral powder blocks, crushing the additive blocks, crushing the additives into fragments with similar size, screening the fragments, screening the oversize fragments, and crushing again until the size of the fragments reaches the standard;
s2, preprocessing, namely, separately and coarsely grinding different raw materials, sieving powder obtained by coarse grinding to obtain coarse powder, mixing the coarse powder of different raw materials, and finely grinding to obtain additive fine powder mixed with the raw materials;
s3, mixing the pug, and adding cement, sand and stone and fine powder into a mixing container;
s4, injecting water for pulping, namely injecting liquid water into the mixing container, continuously stirring the mud in the process of injecting the liquid water, and filling bubbles into the mud;
s5, forming a square pile, namely injecting the mixed slurry into a prefabricated mold for forming;
s6, moisturizing, namely taking the molded square pile out of the mold, and regularly moisturizing the surface of the square pile;
and S7, coating the corrosion-resistant layer, air-drying the square pile after the square pile is subjected to the last moisturizing, and coating the corrosion-resistant layer on the surface of the dried square pile.
The additive such as the fly ash, the mineral powder and the like can be uniformly mixed in the slurry mixing process, the compactness of the anti-corrosion concrete is greatly improved, the concentration of sulfate ions which can invade into the concrete is reduced, the pore diameter of capillary pores is refined, the speed of calcium hydroxide separating out from the set cement is greatly reduced, the generation of gypsum and ettringite crystals is greatly delayed, the effect of inhibiting expansion damage is achieved, and the speed of corrosion damage of the concrete sulfate is greatly delayed.
Furthermore, in the initial selection of the S1 raw material, dry additive blocks need to be selected, and the additives need to be dried before the initial selection, so that the subsequent crushing and grinding are convenient, and the fragments and the fine powder are not easy to bond together.
Further, in the pretreatment of S2, ball milling is used in the fine milling process, and three milling balls with the same diameter and the same material are used for ball milling in the ball milling process, so that the fine milling and the mixing are more thorough.
Further, in the S4 water injection slurrying, utilize the sparger to aerify to the mud in the mixing vessel, the sparger includes connecting cylinder and air duct, and connecting cylinder and air duct fixed connection, it has self assorted outlet duct to peg graft in the connecting cylinder, the one end fixedly connected with apron of outlet duct, and the apron is located the connecting cylinder and keeps away from one side of air duct, it has a pair of bubble groove to cut on the lateral wall of outlet duct, the fixedly connected with air disturbing net in the bubble groove, cut on the lateral wall of outlet duct has a pair of spacing annular, two spacing annular and two air disturbing net staggered distribution, fixedly connected with gag lever post on the lateral wall of spacing annular, the gag lever post is kept away from the one end fixedly connected with limiting plate of spacing annular lateral wall, the inner wall fixedly connected with of connecting cylinder a pair of and spacing annular assorted clamp plate, the clamp plate cup joints in the outside of gag lever post, fixedly connected with owner compression spring between clamp plate and the limiting plate, at the in-process of normal system bubble, the wind pressure can be with apron and outlet duct jack-up, and the wind pressure spills from disturbing the air net, produces the bubble, and when the wind pressure stopped, under main compression spring's effect, the apron can be withdrawed automatically to the connecting cylinder in, makes the difficult backward flow of concrete slurry cause the connecting cylinder to block up.
Furthermore, a sealing gasket is connected between the connecting cylinder and the cover plate and fixedly connected with the connecting cylinder, and the sealing gasket can increase the sealing property between the connecting cylinder and the cover plate.
Furthermore, a wear-resistant ring is connected between the limiting rod and the pressing plate and fixedly connected with the pressing plate, and the wear-resistant ring can reduce the wear between the limiting rod and the pressing plate, so that the connection between the limiting rod and the pressing plate is not easy to shake.
Further, disturb the air net including fixed network and movable net, the activity net is located the outside of fixed network, the fixed network and the lateral wall fixed connection who plays the bubble groove, be connected with the spliced pole between fixed network and the activity net, the one end and the activity net fixed connection of spliced pole, the other end of spliced pole runs through the fixed network and extends to the fixed network inboard, the one end fixedly connected with buckle of activity net is kept away from to the spliced pole, the vice compression spring of fixedly connected with between fixed network and the activity net, and vice compression spring cup joints in the outside of spliced pole, and the activity net can produce periodic vibrations under the combined action of wind pressure and vice compression spring, has the vortex effect to the wind pressure of disturbing air net department, strengthens the effect that the bubble produced.
Further, fixedly connected with silica gel sleeve between fixed network and the activity net, and silica gel sleeve cup joints in the outside of spliced pole and vice compression spring, it has a plurality of air vents to cut on the silica gel sleeve, cuts the silica gel sleeve that has the air vent and has the effect of vortex, further strengthens the effect that the bubble produced.
Further, the corrosion-resistant layer is coated in the S7, the corrosion-resistant layer is isobutyl triethoxy silane, can penetrate through the cementitious surface, penetrates into the concrete, and reacts with air exposed in an acidic or alkaline environment and water molecules in the substrate to form a water repellent treatment layer, so that water is inhibited from entering the substrate. The waterproof, CI-proof and ultraviolet-proof performances are generated, and the air permeability is realized. Can effectively prevent the base material from corroding, loosening, stripping and mildewing the concrete and the internal reinforcing steel bar structure due to water seepage, sunshine, acid rain and seawater erosion to cause pathological changes, and prolongs the service life of the building. The protected substrate has good water repellency and retains its original appearance. An alkaline environment, such as concrete soon as it is poured, stimulates this reaction and accelerates the formation of a water repellent layer.
Furthermore, S7 daubs the corrosion resistant layer, and constructors need to make safety measures when daubing the work, wear eye patches and masks, and wear whole-body protective clothing, so that the process of spraying by constructors is not easy to cause accidents and casualties.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
the scheme can realize the process of mixing the slurry, can ensure that additives such as fly ash and mineral powder can be more uniformly mixed in the slurry, and inject a large amount of bubbles into concrete slurry in the process of water injection and pulping, can generate a large amount of heat and energy in the moment when the bubbles meet foreign matter explosion, ensure that cement, gravel and fine powder in the slurry are more uniformly mixed, greatly increase the compactness of the concrete, reduce the concentration of sulfate ions in the concrete and refine the aperture of capillary pores, and inhibit the speed of calcium hydroxide precipitation from the gravel. The method can delay the generation of gypsum and ettringite crystals, play a role in inhibiting the expansion and the damage of the gypsum and the ettringite crystals, and further play a role in delaying the visible speed of the corrosion and the damage of the concrete sulfate.
Drawings
FIG. 1 is a principal flow diagram of the preparation of the present invention;
FIG. 2 is a schematic view of the structure of the air outlet pipe of the bubble generating apparatus of the present invention;
FIG. 3 is a schematic view of the bubble generating apparatus of the present invention with the outlet tube open;
FIG. 4 is a schematic view of the structure at A in FIG. 3;
FIG. 5 is a front sectional view of the air outlet pipe of the bubble generating apparatus of the present invention;
FIG. 6 is a schematic view of the structure at B in FIG. 5;
FIG. 7 is a schematic view of the structure of the air-disturbing net of the present invention;
fig. 8 is a schematic view of the structure at C in fig. 7.
The reference numbers in the figures illustrate:
the device comprises a connecting cylinder 1, an air guide pipe 2, a cover plate 3, an air outlet pipe 4, an air disturbing net 5, a fixed net 501, a movable net 502, a connecting column 503, a buckle 504, an auxiliary compression spring 505, a silica gel sleeve 506, an air vent 507, a limit chute 6, a limit rod 7, a sealing gasket 8, a main compression spring 9, a limit plate 10, a pressure plate 11 and a wear-resistant ring 12.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, S1, selecting an appropriate-sized and excellent-quality additive, namely, a fly ash block and a mineral powder block, crushing the additive into fragments with similar sizes, screening the fragments, screening the oversize fragments, and crushing again until the fragments reach the standard size, selecting a dry additive block in the initial selection of the raw material S1, and drying the additive before the initial selection to facilitate subsequent crushing and grinding, so that the fragments and fine powder are not easy to adhere together;
s2, preprocessing, namely, separately performing coarse grinding on different raw materials, sieving powder obtained by the coarse grinding to obtain coarse powder, mixing the coarse powder of the different raw materials, and then performing fine grinding to obtain additive fine powder mixed with the raw materials, wherein in the preprocessing of S2, ball milling is used in the fine grinding process, and three grinding balls with the same diameter and the same material are used for ball milling in the ball milling process, so that the fine grinding and the mixing are more thorough;
s3, mixing the pug, and adding cement, gravel and fine powder into a mixing container, wherein the cement, the gravel and the fine powder are 42 parts by weight, the gravel and the sand are 8 parts by weight and the fine powder is 20 parts by weight;
referring to fig. 3-8, S4, injecting water to make slurry, injecting liquid water into the mixing container, stirring the slurry continuously during the process of injecting the liquid water, and filling bubbles into the slurry;
in S4 pulping by injecting water, a foaming device is utilized to inflate slurry in a mixing container, the foaming device comprises a connecting cylinder 1 and an air guide tube 2, the connecting cylinder 1 is fixedly connected with the air guide tube 2, an air outlet tube 4 matched with the connecting cylinder 1 is inserted in the connecting cylinder 1, one end of the air outlet tube 4 is fixedly connected with a cover plate 3, the cover plate 3 is positioned at one side of the connecting cylinder 1 far away from the air guide tube 2, the side wall of the air outlet tube 4 is chiseled with a pair of foaming grooves, an air disturbing net 5 is fixedly connected in the foaming grooves, the side wall of the air outlet tube 4 is chiseled with a pair of limiting ring grooves 6, the two limiting ring grooves 6 and the two air disturbing nets 5 are distributed in a staggered way, the side wall of the limiting ring groove 6 is fixedly connected with a limiting rod 7, one end of the limiting rod 7 far away from the side wall of the limiting ring groove 6 is fixedly connected with a limiting plate, a main compression spring 9 is fixedly connected between the pressing plate 11 and the limiting plate 10, in the normal bubble making process, the cover plate 3 and the air outlet pipe 4 are jacked up by wind pressure, the wind pressure leaks from the air disturbing net 5 to generate bubbles, when the wind pressure is stopped, the cover plate 3 can be automatically retracted into the connecting cylinder 1 under the action of the main compression spring 9, so that concrete slurry is not easy to flow back to cause the blockage of the connecting cylinder 1, a sealing gasket 8 is connected between the connecting cylinder 1 and the cover plate 3, the sealing gasket 8 is fixedly connected with the connecting cylinder 1, the sealing property between the connecting cylinder 1 and the cover plate 3 can be increased by the sealing gasket 8, a wear-resisting ring 12 is connected between the limiting rod 7 and the pressing plate 11, the wear-resisting ring 12 is fixedly connected with the pressing plate 11, the wear-resisting ring 12 can reduce the wear between the limiting rod 7 and the pressing plate 11, and the connection between the;
the air disturbing net 5 comprises a fixed net 501 and a movable net 502, the movable net 502 is positioned on the outer side of the fixed net 501, the fixed net 501 is fixedly connected with the side wall of the foaming groove, a connecting column 503 is connected between the fixed net 501 and the movable net 502, one end of the connecting column 503 is fixedly connected with the movable net 502, the other end of the connecting column 503 penetrates through the fixed net 501 and extends to the inner side of the fixed net 501, one end of the connecting column 503, which is far away from the movable net 502, is fixedly connected with a buckle 504, a secondary compression spring 505 is fixedly connected between the fixed net 501 and the movable net 502, the secondary compression spring 505 is sleeved on the outer side of the connecting column 503, the movable net 502 can generate periodic vibration under the combined action of wind pressure and the secondary compression spring 505, the wind pressure at the air disturbing net 5 is disturbed, the effect of generating bubbles is enhanced, a silica gel sleeve 506 is fixedly connected between the fixed net 501 and the movable net 502, and the silica gel sleeve 506 is, a plurality of vent holes 507 are cut on the silica gel sleeve 506, and the silica gel sleeve 506 with the vent holes 507 has the function of turbulence, so that the effect of generating bubbles is further enhanced;
wherein the foaming device needs to be communicated with an air pump, namely, one end of the air duct 2 far away from the connecting cylinder 1 is fixedly connected with the air pump, when the frothing device is not in operation, see fig. 2, the cover plate 3 is now located inside the connecting cylinder 1, in the operation process of the bubbling device, please refer to fig. 3-4, at this time, the high-pressure gas generated by the gas pump flows out through the gas-guide tube 2, the connecting tube 1, the cover plate 3 and the gas-disturbing net 5, and passes through the disturbance of the reciprocating motion of the movable net 502, bubbles are formed in the concrete slurry and can move freely in the slurry, and a large amount of heat and energy can be generated at the moment when the bubbles encounter foreign matter explosion, so that the cement, sand and stone and fine powder in the slurry are mixed more uniformly, the compactness of the concrete is greatly increased, the concentration of sulfate ions which can invade into the concrete is reduced, the pore diameter of capillary pores is refined, and the speed of separating out calcium hydroxide from the cement stone is inhibited. The generation of gypsum and ettringite crystals is delayed, the expansion and the damage of the gypsum and the ettringite crystals are inhibited, and the attack speed of the concrete sulfate corrosion and the damage is delayed;
s5, forming a square pile, namely injecting the mixed slurry into a prefabricated mold for forming;
s6, moisturizing, namely taking the molded square pile out of the mold, and regularly moisturizing the surface of the square pile;
s7, coating a corrosion-resistant layer, after the square pile is subjected to the last moisturizing, air-drying the square pile, coating the corrosion-resistant layer on the surface of the dried square pile, and in the step S7 of coating the corrosion-resistant layer, the corrosion-resistant layer is isobutyl triethoxysilane, can penetrate through the cementitious surface and penetrate into the concrete to perform a chemical reaction with air exposed in an acidic or alkaline environment and water molecules in the substrate to form a water repellent treatment layer, so that water is inhibited from entering the substrate. The waterproof, CI-proof and ultraviolet-proof performances are generated, and the air permeability is realized. Can effectively prevent the base material from corroding, loosening, stripping and mildewing the concrete and the internal reinforcing steel bar structure due to water seepage, sunshine, acid rain and seawater erosion to cause pathological changes, and prolongs the service life of the building. The protected substrate has good water repellency and retains its original appearance. The alkaline environment can stimulate the reaction and accelerate the formation of a water repellent layer if concrete is poured soon, S7 is smeared in the corrosion-resistant layer, and constructors need to make safety measures when smearing the concrete, wear eye masks and wear whole-body protective clothing, so that accidents are not easy to occur in the spraying process of the constructors, and the constructors are not easy to injure and die.
The additive such as the fly ash, the mineral powder and the like can be uniformly mixed in the slurry mixing process, the compactness of the anti-corrosion concrete is greatly improved, the concentration of sulfate ions which can invade into the concrete is reduced, the pore diameter of capillary pores is refined, the speed of calcium hydroxide separating out from the set cement is greatly reduced, the generation of gypsum and ettringite crystals is greatly delayed, the effect of inhibiting expansion damage is achieved, and the speed of corrosion damage of the concrete sulfate is greatly delayed.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (8)
1. The utility model provides an anti-corrosion type mixes earth prefabricated square pile forming process which characterized in that: the method comprises the following steps:
s1, primarily selecting raw materials, selecting additives with proper size and excellent phase, namely fly ash blocks and mineral powder blocks, crushing the additive blocks, crushing the additives into fragments with similar size, screening the fragments, screening the oversize fragments, and crushing again until the size of the fragments reaches the standard;
s2, preprocessing, namely, separately and coarsely grinding different raw materials, sieving powder obtained by coarse grinding to obtain coarse powder, mixing the coarse powder of different raw materials, and finely grinding to obtain additive fine powder mixed with the raw materials;
s3, mixing the pug, and adding cement, sand and stone and fine powder into a mixing container;
s4, injecting water for pulping, namely injecting liquid water into the mixing container, continuously stirring the pug in the process of injecting the liquid water, and filling bubbles into the mud by using a foaming device;
s5, forming a square pile, namely injecting the mixed slurry into a prefabricated mold for forming;
s6, moisturizing, namely taking the molded square pile out of the mold, and regularly moisturizing the surface of the square pile;
s7, coating an anti-corrosion layer, air-drying the square pile after the square pile is subjected to the last moisturizing, and coating the anti-corrosion layer on the surface of the dried square pile;
the foaming device comprises a connecting cylinder (1) and an air duct (2), the connecting cylinder (1) is fixedly connected with the air duct (2), a self-matched air outlet pipe (4) is inserted in the connecting cylinder (1), one end of the air outlet pipe (4) is fixedly connected with a cover plate (3), the cover plate (3) is positioned on one side of the connecting cylinder (1) far away from the air duct (2), a pair of foaming grooves are formed in the side wall of the air outlet pipe (4), a gas disturbing net (5) is fixedly connected in the foaming grooves, a pair of limiting ring grooves (6) are formed in the side wall of the air outlet pipe (4), the two limiting ring grooves (6) and the two gas disturbing nets (5) are distributed in a staggered mode, a limiting rod (7) is fixedly connected to the side wall of the limiting ring grooves (6), and one end of the limiting plate (10) far away from the side wall of the limiting ring grooves (6) is arranged, the inner wall fixedly connected with of connecting cylinder (1) a pair of and spacing annular (6) assorted clamp plate (11), clamp plate (11) cup joint in the outside of gag lever post (7), fixedly connected with main compression spring (9) between clamp plate (11) and limiting plate (10), disturb gas net (5) including fixed net (501) and activity net (502), activity net (502) are located the outside of fixed net (501), the lateral wall fixed connection of fixed net (501) and alveolus, be connected with spliced pole (503) between fixed net (501) and activity net (502), the one end and the activity net (502) fixed connection of spliced pole (503), the other end of spliced pole (503) runs through fixed net (501) and extends to fixed net (501) inboard, the one end fixedly connected with buckle (504) of activity net (502) are kept away from to spliced pole (503), an auxiliary compression spring (505) is fixedly connected between the fixed net (501) and the movable net (502), and the auxiliary compression spring (505) is sleeved on the outer side of the connecting column (503).
2. The forming process of the corrosion-resistant concrete prefabricated square pile as claimed in claim 1, wherein the forming process comprises the following steps: in the initial selection of the S1 raw material, dried additive blocks need to be selected, and the additives need to be dried before the initial selection.
3. The forming process of the corrosion-resistant concrete prefabricated square pile as claimed in claim 1, wherein the forming process comprises the following steps: in the S2 pretreatment, ball milling is used in the fine milling process, and three milling balls with the same diameter and the same material are used for ball milling in the ball milling process.
4. The forming process of the corrosion-resistant concrete prefabricated square pile as claimed in claim 1, wherein the forming process comprises the following steps: a sealing gasket (8) is connected between the connecting cylinder (1) and the cover plate (3), and the sealing gasket (8) is fixedly connected with the connecting cylinder (1).
5. The forming process of the corrosion-resistant concrete prefabricated square pile as claimed in claim 1, wherein the forming process comprises the following steps: and a wear-resistant ring (12) is connected between the limiting rod (7) and the pressing plate (11), and the wear-resistant ring (12) is fixedly connected with the pressing plate (11).
6. The forming process of the corrosion-resistant concrete prefabricated square pile as claimed in claim 1, wherein the forming process comprises the following steps: fixedly connected with silica gel sleeve (506) between fixed net (501) and activity net (502), and silica gel sleeve (506) cup joint in the outside of spliced pole (503) and vice compression spring (505), a plurality of air vents (507) have been dug on silica gel sleeve (506).
7. The forming process of the corrosion-resistant concrete prefabricated square pile as claimed in claim 1, wherein the forming process comprises the following steps: and S7 is smeared in the corrosion-resistant layer, and the corrosion-resistant layer is isobutyl triethoxy silane.
8. The forming process of the corrosion-resistant concrete prefabricated square pile as claimed in claim 1, wherein the forming process comprises the following steps: s7 is smeared in the corrosion-resistant layer, and constructors need to make safety measures when smearing work is carried out, wear eye masks and mouth masks and wear whole-body protective clothing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910711355.4A CN110405921B (en) | 2019-08-02 | 2019-08-02 | Anti-corrosion concrete prefabricated square pile forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910711355.4A CN110405921B (en) | 2019-08-02 | 2019-08-02 | Anti-corrosion concrete prefabricated square pile forming process |
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