CN110387878A - A kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation - Google Patents
A kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation Download PDFInfo
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- CN110387878A CN110387878A CN201910711631.7A CN201910711631A CN110387878A CN 110387878 A CN110387878 A CN 110387878A CN 201910711631 A CN201910711631 A CN 201910711631A CN 110387878 A CN110387878 A CN 110387878A
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland 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
- 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
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
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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
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Abstract
The invention discloses a kind of anti-corrosion mixed mud precast square pile preparation processes of internal layer impermeabilisation, belong to building prefabrication stake technical field, a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation, it may be implemented in such a way that magnetic force guides, salt resistance alkali preservative is uniformly added into concrete, and by the cementation of the load effect of polypropylene fibre and nanoemulsions, anticorrosive component is carried while assigning itself soft magnetism, concrete surface layer is mobile under the action of magnetic attraction simultaneously, the bubble present in breaking concrete in moving process, realize micro- effect of vibrating in microcosmic point, improve the compaction rate and intensity of concrete, and form fine and close netted etch resistant layer in conjunction with concrete on surface layer under the continuous action in magnetic field, there is superior hydrophobic barrier performance simultaneously, it had both been played under high alkali environment with high salt Excellent corrosion resistance, and there is extremely strong waterproof impervious characteristic, and then improve the service life and intensity of precast square pile.
Description
Technical field
The present invention relates to building prefabrication stake technical fields, mixed more specifically to a kind of anti-corrosion of internal layer impermeabilisation
Soil precast square pile preparation process.
Background technique
Prefabricated pile, just refer to piling scene or nearby it is prefabricated on the spot, shorter stake can also be produced in precast plant.It is special
Point be can bear biggish load, it is firm it is durable, speed of application is fast, larger to surrounding environment influence.Operational procedure is prefabricated, fortune
Defeated, stacking, pile sinking.Prefabricated pile is a variety of materials made of factory or construction site, various forms of stakes (such as timber, coagulation
Cubic metre of earth stake, prestressed concrete pipe pile, piling bar etc.), stake squeezed into, be pressed into or shaken with sinking apparatus in burying.Chinese architecture is applied
Work field is mainly concrete precast pile and piling bar two major classes using more prefabricated pile.
Wherein armored concrete solid pile, section are generally square.Pile body section is generally long constant along stake.Solid square pile is cut
Face size is generally 200 × 200mm-600 × 600mm.The solid stake body length of armored concrete: being limited to pile frame height, scene
The length of prefabricated pile is generally within 25-30m.It is limited to traffic condition, prefabrication stake, stake is long to be usually no more than 12m, otherwise answers
Then segmentation prefabricating gives spreading during piling.Connector is no more than 3.The advantages of armored concrete solid pile: length
It can be selected according to the actual needs of the site in a certain range with section, due to prefabricated on the ground, production quality is easily guaranteed that, is held
Loading capability is high, and durability is good.Therefore, using relatively wide in engineering.Material requirements: concrete used in armored concrete solid pile it is strong
Spend grade not preferably less than C30 (30N/mm2).It when using static pressure method pile sinking, can suitably reduce, but not preferably less than C20, prestressing force is mixed
Preferably less than C40, main reinforcement do not determine the strength grade of the concrete of solidifying soil stake according to stake section size and lifting checking computations, generally 4-
8, diameter 12-25mm；It is not preferably less than Φ 14, stirrup diameter 6-8mm, spacing is not more than 200mm, squeezes into stake top 2-3d long
Stirrup should encrypt in degree range, and reinforced mesh is arranged.The thickness of concrete cover of prefabricated pile longitudinal reinforcement is not preferably less than
30mm.Main reinforcement can be closed up at pile top and be welded on pile top auxiliary bar, in close sand and rubble class soil, can be wrapped at pile top with
Pile top is reinforced in steel plate shoe.
China has a vast territory, and marine environment is different and weather is various, as the damp and hot of the southeastern coastal areas, carbonization and villaumite are rotten
Erosion, freeze thawing, carbonization and the chlorine salt corrosion of Northern Coastal Provinces, the dry and cold, xeothermic of western Salt Lake Area, villaumite and sulfate are rotten
Erosion, these all make the universal failure mode of precast concrete, multiplicity and complexity.The Second concrete held for 1991 is durable
In property international conference, Metha points out " world today, concrete in the report of entitled " ten Nian Jinzhan of concrete durability-five "
The main reason for component damage successively decreases by importance to put in order: steel bar corrosion, Frozen-thawed cycled, erosion environment physical chemistry make
With ", that is to say, that corrosion is to influence one of the principal element of concrete durability, and usually corrosion includes acid, alkali, salt to coagulation
The corrosion of soil.
Existing precast square pile in order to solve the problems, such as salt resistance alkali, mostly use greatly mode in stake surface setting anti-corrosion layer into
Row protection, or corrosion resistant material is added in concrete material, the binding force of one side anti-corrosion layer and precast square pile
It is poor, it is easy to appear under penetration of dampness falls off and corrode cavity over time, in turn result in the corrosion of pile body,
The salt resistance alkali effect of another aspect anti-corrosion layer is limited, and the corrosion-resistant of precast square pile is unable to satisfy under high alkali environment with high salt and is wanted
It asks, and the original performance of concrete may be impacted by adding corrosion resistant material, and corrosion resistant material is difficult uniformly
Protection comprehensively without loophole is formed inside concrete, due to the above problems, the durability to precast square pile proposes
Huge challenge.
Summary of the invention
1. technical problems to be solved
Aiming at the problems existing in the prior art, it is mixed that the purpose of the present invention is to provide a kind of anti-corrosions of internal layer impermeabilisation
Soil precast square pile preparation process, it may be implemented that it is anti-uniformly to add salt resistance alkali into concrete in such a way that magnetic force guides
Rotten agent, and by the cementation of the load effect of polypropylene fibre and nanoemulsions, carrying while assigning itself soft magnetism
Anticorrosive component, while concrete surface layer is mobile under the action of magnetic attraction, in moving process present in breaking concrete
Bubble realizes micro- effect of vibrating in microcosmic point, improves the compaction rate and intensity of concrete, and the continuous action in magnetic field
Under fine and close netted etch resistant layer is formed in conjunction with concrete on surface layer, while there is superior hydrophobic barrier performance, with high salt
Not only excellent corrosion resistance had been played under high alkali environment, but also there is extremely strong waterproof impervious characteristic, and then improved making for precast square pile
With service life and intensity.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation, comprising the following steps:
One, prefab-form is designed according to live pile foundation actual requirement, and coats one layer of separation layer before pouring；
Two, pile body steel reinforcement cage, pile top reinforcing bar according to needed for the dimensioned of precast square pile to be prepared and stake end mesh sheet, and
It is assembled into overall skeleton；
Three, the theoretical match ratio for designing anti-corrosion concrete determines practical match ratio after carrying out test adjustment, and by practical
Match ratio prepares anti-corrosion concrete；
Four, overall skeleton is installed into prefab-form, prestressed stretch-draw is carried out by stretching machine, it is to be tensioned anti-to reinforcing bar
It is anchored after the 70%-75% of tensile strength；
Five, tensioning after the assay was approved, pours anti-corrosion concrete, and add anti-rotten antiseepage fibre by bicyclic magnetic conductance device
Dimension；
Six, using atmospheric steam curing, left and right, demoulding obtain precast square pile after finishing processing for 24 hours.
Further, the prefab-form includes external mold and internal model, and square pile forming cavity is formed between the external mold and internal model,
The pile body portion section of the external mold is square, and the pile top portion section of the external mold is square cone, and the section of the internal model is circle
Shape.
Further, the pile body steel reinforcement cage includes several prestressing force main reinforcements, common main reinforcement and ring-shaped stirrup, and prestressing force
Main reinforcement, common main reinforcement and ring-shaped stirrup along the elongated setting of pile body y direction, the pile top reinforcing bar include a center main reinforcement and
Several edge main reinforcements, the center main reinforcement are arranged along the elongated setting of the pile top longitudinal axis, the edge main reinforcement along pile top bevel direction.
Further, the quantity of the prestressing force main reinforcement is four, and is diagonally distributed along pile body, the common main reinforcement with
The spacing of 10-15cm is arranged between prestressing force main reinforcement adjacent two-by-two, and the ring-shaped stirrup is staggered with the spacing of 20-30cm
It is connected inside and outside prestressing force main reinforcement, and by way of welding or metal binding wire, the edge main reinforcement is by answering in advance
Advocate muscle by bending come center main reinforcement upper end is tied up by reinforcing rib and the bending part of prestressing force main reinforcement by steel wire
It pricks, main ribs lower end directly welds together with edge main reinforcement, improves the stability and intensity of concrete reinforcement structure.
Further, the raw material of the anti-corrosion concrete includes following components by weight: portland cement 310-360
It is part, 400-480 parts of coarse sand, 160-285 parts of medium coarse sand, 980-1150 parts of rubble, 125-175 parts of water, 30-40 parts of steel slag, siliceous
25-40 parts of iron tailings powder, 18-25 parts of gypsum, 12-20 parts of high calcium ash, 25-45 parts of silicon powder, poly carboxylic acid series water reducer 1.2-1.8
Part, 1-1.2 parts of sodium molybdate, 10-15 parts of styrene-butadiene latex, 0.5-1 parts of stannous chloride, 15-30 parts of natural zeolite superfine powder, air entraining agent
1-1.4 parts, 220-400 parts of superfined flyash, be added coarse sand, medium coarse sand, steel slag, natural zeolite superfine powder, siliceous iron tailings powder,
Silicon powder is realized in concrete material and is sufficient filling with using the difference of each component partial size, and the sky between each component particle is reduced
Gap improves pore structure, keeps concrete more closely knit, significantly improve the impermeability, corrosion resistance and intensity of concrete, siliceous iron
Mine tailing, sodium molybdate, sodium nitrite, stannous chloride are used cooperatively, the erosion for effectively slowing down or preventing chemical substance to concrete,
Wherein siliceous iron tailings powder and steel slag mating reaction increase the later strength of concrete；The poly carboxylic acid series water reducer of addition is modified
Performance is stablized afterwards, is easy to store, and the production suitable for ready-mixed concrete needs, and is used in combination with air entraining agent, increases amount of air entrainment,
Water-reducing rate is effectively improved, reduces the ratio of mud, admixes in concrete, generates a large amount of small and independent minute bubbles, while improving hole
Structure improves mobility, pumpability, water-retaining property and the slump of concrete.
Further, the bicyclic magnetic conductance device includes active magnet ring and driven magnet ring, the active magnet ring and external mold phase
Matching, the driven magnet ring match with internal model, and the external mold rear and front end, which is dug, sliding slot, active magnet ring inner end peace
Equipped with a pair of idler wheel to match with sliding slot, active magnet ring inner end, which is dug, first annular cavity, in the toroidal cavity
There are four the electromagnet of annular spread for installation, and the driven magnet ring inner end, which is dug, the second toroidal cavity, and second annular is empty
It is intracavitary that annular air-pocket is installed, the driven magnet ring outer end dig have it is several it is equally distributed release liquid micropore, and release liquid micropore with
Second toroidal cavity is connected, and salt resistance alkali preservative is filled in second toroidal cavity, may be implemented to inhale using magnetic attraction
Attached effect cooperates the at the uniform velocity extruding of annular air-pocket, and driving salt resistance alkali preservative forms etch resistant layer in concrete surface, due to
It is integrated molding, not only cohesive force is big, while can play excellent anti-corrosion effects.
Further, the driven magnet ring is made of ferromagnetic metal material, and the aperture for releasing liquid micropore is 0.2-
0.5mm, and the quantity for releasing liquid micropore is 16-24, driven magnet ring can respond the magnetic attraction of electromagnet and then realize synchronous move
It is dynamic, and salt resistance alkali preservative is uniformly added into concrete by releasing liquid micropore, it is easy to etch resistant layer and is seamed into the nothing on surface
Type.
Further, the raw material of the salt resistance alkali preservative includes following components by weight: micro- silicon ash 20-30 parts, mixed
Solidifying 10-15 parts of soil expansion chamotte powder, 20-30 parts of super-fine limestone powder, 0.1-0.2 parts of ammonium heptamolybdate, calgon 0.1-0.2
Part, 0.05-0.1 parts of sodium gluconate, 30-45 parts of nanoemulsions, ferromagnetic solution 15-20 parts and polypropylene fibre 25-35 of nanometer
Part, by the intensity that micro- silicon ash each age that substantially increases concrete in seawater or polluted-water environment is added；Pass through silicon ash
Make the electric flux of each age concrete, chlorine ion binding capacity under the action of effective chloride-penetration resistance with the addition of ultra-fine mountain flour
Coefficient is decreased obviously；By the way that ammonium heptamolybdate, calgon is added, there is apparent antirust to make the metal component in concrete
With extending the service life of the metal components such as reinforcing bar；Sodium gluconate can increase the plasticity and intensity of concrete, and have resistance
Stagnant effect increases late strength of concrete, greatly improves concrete crushing strength ratio, and nanoemulsions are keeping good gluing function
Under the premise of, the function of barrier and waterproof is provided, it, which can promote that reticular structure can be formed after film forming, can increase the viscous of cement slurry
Consistency can greatly improve the flowing dispersibility of cement slurry, reduce the surface tension of cement slurry, generate silicate phase in hydration process
Hyrate crystal forms hydrophobic film in concrete surface, inside concrete being capable of pore between filling concrete particle
Road forms fine and close inierpeneirating network structure, significantly improves concrete resistance corrosive medium infiltration inside and structure is caused to destroy
Ability and anti-permeability performance.
Further, the polypropylene fibre rough surface is porous, and diameter is 10-20 μm, the polypropylene fibre
Length is 5-10mm, substantially increases the binding force that fiber gathers materials with cement base, and fiber can be dispersed in rapidly coagulation easily
A kind of unrest is formed in soil to support system, has dispersed the directional stress of concrete, prevent in concrete the generation of pre-existing fracture and
Development, eliminates or reduces the quantity and scale of primary microcrack, substantially increases anti-cracking concrete impermeability, improves concrete
Toughness has certain intensity additionally, due to fiber itself to extend the service life of concrete, and fiber is dispersed in mixed
The anchorage effect in soil and formed is coagulated, certain failure energy is can absorb in moment, is equivalent to " the secondary reinforcement of concrete
Muscle ".
Further, the salt resistance alkali preservative of every cubic metre of anti-corrosion concrete addition 8%-10%, technology people
Member can voluntarily select adjustment salt resistance alkali preservative dosage according to on-site actual situations.
3. beneficial effect
Compared with the prior art, the present invention has the advantages that
(1) this programme may be implemented uniformly to add salt resistance alkali preservative into concrete in such a way that magnetic force guides, and
By the load effect of polypropylene fibre and the cementation of nanoemulsions, anticorrosive group is carried while assigning itself soft magnetism
Point, while concrete surface layer is mobile under the action of magnetic attraction, the bubble present in breaking concrete in moving process is realized
Micro- effect of vibrating in microcosmic point, improves the compaction rate and intensity of concrete, and on surface layer under the continuous action in magnetic field
Fine and close netted etch resistant layer is formed in conjunction with concrete, while there is superior hydrophobic barrier performance, in high alkali environment with high salt
Under not only played excellent corrosion resistance, but also there is extremely strong waterproof impervious characteristic, so improve precast square pile service life and
Intensity.
(2) prefab-form includes external mold and internal model, square pile forming cavity is formed between external mold and internal model, the pile body portion of external mold is cut
Face is square, and the pile top portion section of external mold is square cone, and the section of internal model is circle.
(3) pile body steel reinforcement cage includes several prestressing force main reinforcements, common main reinforcement and ring-shaped stirrup, and prestressing force main reinforcement, common
Along the elongated setting of pile body y direction, pile top reinforcing bar includes a center main reinforcement and several edge main reinforcements for main reinforcement and ring-shaped stirrup,
Center main reinforcement is arranged along the elongated setting of the pile top longitudinal axis, edge main reinforcement along pile top bevel direction.
(4) quantity of prestressing force main reinforcement is four, and is diagonally distributed along pile body, and common main reinforcement is set with the spacing of 10-15cm
It sets between prestressing force main reinforcement adjacent two-by-two, ring-shaped stirrup is staggered inside and outside prestressing force main reinforcement with the spacing of 20-30cm
Two sides, and connected by way of welding or metal binding wire, edge main reinforcement is by bending by prestressing force main reinforcement come center
By reinforcing rib and the bending part of prestressing force main reinforcement by steel wire lashing, main reinforcement lower end is directly welded with edge main reinforcement for main reinforcement upper end
Together, the stability and intensity of concrete reinforcement structure are improved.
(5) raw material of anti-corrosion concrete includes following components by weight: 310-360 parts of portland cement, coarse sand
400-480 parts, 160-285 parts of medium coarse sand, 980-1150 parts of rubble, 125-175 parts of water, 30-40 parts of steel slag, siliceous iron tailings powder
25-40 parts, 18-25 parts of gypsum, 12-20 parts of high calcium ash, 25-45 parts of silicon powder, 1.2-1.8 parts of poly carboxylic acid series water reducer, sodium molybdate
1-1.2 parts, 10-15 parts of styrene-butadiene latex, 0.5-1 parts of stannous chloride, 15-30 parts of natural zeolite superfine powder, 1-1.4 parts of air entraining agent,
220-400 parts of superfined flyash, coarse sand, medium coarse sand, steel slag, natural zeolite superfine powder, siliceous iron tailings powder, silicon powder, benefit is added
It with the difference of each component partial size, realizes and is sufficient filling in concrete material, reduce the gap between each component particle, improve
Pore structure keeps concrete more closely knit, significantly improves the impermeability, corrosion resistance and intensity of concrete, siliceous iron tailings powder,
Sodium molybdate, sodium nitrite, stannous chloride are used cooperatively, the erosion for effectively slowing down or preventing chemical substance to concrete, wherein silicon
Matter iron tailings powder and steel slag mating reaction increase the later strength of concrete；The poly carboxylic acid series water reducer of addition performance after modified
Stablize, be easy to store, the production suitable for ready-mixed concrete needs, and is used in combination with air entraining agent, increases amount of air entrainment, effectively mention
High water reducing rate reduces the ratio of mud, admixes in concrete, generates a large amount of small and independent minute bubbles, while improving pore structure, mentions
The high mobility of concrete, pumpability, water-retaining property and the slump.
(6) bicyclic magnetic conductance device includes active magnet ring and driven magnet ring, and active magnet ring matches with external mold, driven magnet ring with
Internal model matches, and external mold rear and front end, which is dug, sliding slot, and active magnet ring inner end is equipped with a pair of idler wheel to match with sliding slot,
Active magnet ring inner end, which is dug, first annular cavity, and there are four the electromagnet of annular spread, driven magnet rings for installation in toroidal cavity
Inner end, which is dug, the second toroidal cavity, and annular air-pocket is equipped in the second toroidal cavity, and driven magnet ring outer end cutting has several equal
Liquid micropore is released in even distribution, and is released liquid micropore and be connected with the second toroidal cavity, anti-filled with salt resistance alkali in the second toroidal cavity
The effect using magnetic attraction absorption may be implemented in rotten agent, cooperates the at the uniform velocity extruding of annular air-pocket, driving salt resistance alkali preservative is mixed
Solidifying soil surface forms etch resistant layer, and due to being integrated molding, not only cohesive force is big, while can play excellent anticorrosive effect
Fruit.
(7) driven magnet ring is made of ferromagnetic metal material, and the aperture for releasing liquid micropore is 0.2-0.5mm, and it is micro- to release liquid
The quantity in hole is 16-24, and driven magnet ring can respond the magnetic attraction of electromagnet and then realize synchronizing moving, and micro- by releasing liquid
Salt resistance alkali preservative is uniformly added in hole into concrete, is easy to etch resistant layer in the seamless-molding on surface.
(8) raw material of salt resistance alkali preservative includes following components by weight: micro- silicon ash 20-30 parts, concrete expansion it is ripe
10-15 parts of feed powder, 20-30 parts of super-fine limestone powder, 0.1-0.2 parts of ammonium heptamolybdate, 0.1-0.2 parts of calgon, glucose
Sour sodium 0.05-0.1 parts, 30-45 parts of nanoemulsions, ferromagnetic solution 15-20 parts and 25-35 parts of polypropylene fibre of nanometer, by adding
The intensity of silicon ash each age that substantially increases concrete in seawater or polluted-water environment in a subtle way；Pass through silicon ash and ultra-fine mountain flour
Addition make the electric flux of each age concrete under the action of effective chloride-penetration resistance, chloride diffusion coefficient is obvious
Decline；By the way that ammonium heptamolybdate, calgon is added, there is apparent anti-rust action to the metal component in concrete, extend
The service life of the metal components such as reinforcing bar；Sodium gluconate can increase the plasticity and intensity of concrete, and have retardation, increase
Add late strength of concrete, greatly improve concrete crushing strength ratio, nanoemulsions mention under the premise of keeping good gluing function
For obstructing and the function of waterproof, it can form reticular structure and can increase the viscosity of cement slurry after can promoting film forming, can be big
Width improves the flowing dispersibility of cement slurry, reduces the surface tension of cement slurry, and it is brilliant to generate silicate phase hyrate in hydration process
Body forms hydrophobic film in concrete surface, inside concrete can capillary channel between filling concrete particle, formed
Fine and close inierpeneirating network structure significantly improves concrete resistance corrosive medium and penetrates into the internal ability for causing structure to destroy and resist
Seep performance.
(9) polypropylene fibre rough surface is porous, and diameter is 10-20 μm, and the length of polypropylene fibre is 5-10mm, greatly
Improve fiber greatly and binding force that cement base is gathered materials, fiber can be dispersed in rapidly in concrete easily formed a kind of unrest to
Support system has dispersed the directional stress of concrete, prevents the occurrence and development of pre-existing fracture in concrete, eliminates or reduces and is former
The quantity and scale of raw microcrack, substantially increase anti-cracking concrete impermeability, improve toughness of concrete, to extend coagulation
The service life of soil, has certain intensity additionally, due to fiber itself, and fiber is dispersed in the anchor in concrete and formed
Gu effect, certain failure energy is can absorb in moment, is equivalent to " the secondary reinforcing rib " of concrete.
(10) the salt resistance alkali preservative of every cubic metre of anti-corrosion concrete addition 8%-10%, technical staff can basis
On-site actual situations voluntarily select adjustment salt resistance alkali preservative dosage.
Detailed description of the invention
Fig. 1 is the main flow diagram of the present invention；
Fig. 2 is the structural schematic diagram of prefab-form of the present invention and bicyclic magnetic conductance device part；
Fig. 3 is the structural schematic diagram of the driven flux ring portion of the present invention；
Fig. 4 is the cross-sectional view of the driven flux ring portion of the present invention；
Fig. 5 is the structural schematic diagram under present invention addition salt resistance alkali preservative state.
Figure label explanation:
Liquid micropore, 7 annular air-pockets, 8 salt resistance alkali anti-corrosions are released in 1 external mold, 2 internal models, 3 active magnet rings, 4 driven magnet rings, 5 sliding slots, 6
Agent, 9 electromagnet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "inner", "outside", " top/bottom end "
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only, and cannot understand
For indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Be equipped with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to removable
Connection is unloaded, or is integrally connected, can be mechanical connection, is also possible to be electrically connected, can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements, for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1:
Referring to Fig. 1, a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation, comprising the following steps:
One, prefab-form is designed according to live pile foundation actual requirement, and coats one layer of separation layer before pouring；
Two, pile body steel reinforcement cage, pile top reinforcing bar according to needed for the dimensioned of precast square pile to be prepared and stake end mesh sheet, and
It is assembled into overall skeleton；
Three, the theoretical match ratio for designing anti-corrosion concrete determines practical match ratio after carrying out test adjustment, and by practical
Match ratio prepares anti-corrosion concrete；
Four, overall skeleton is installed into prefab-form, prestressed stretch-draw is carried out by stretching machine, it is to be tensioned anti-to reinforcing bar
It is anchored after the 70% of tensile strength；
Five, tensioning after the assay was approved, pours anti-corrosion concrete, and add anti-rotten antiseepage fibre by bicyclic magnetic conductance device
Dimension；
Six, using atmospheric steam curing, left and right, demoulding obtain precast square pile after finishing processing for 24 hours.
Referring to Fig. 1, prefab-form includes external mold 1 and internal model 2, square pile forming cavity is formed between external mold 1 and internal model 2, outside
The pile body portion section of mould 1 is square, and the pile top portion section of external mold 1 is square cone, and the section of internal model 2 is circle.
Pile body steel reinforcement cage includes several prestressing force main reinforcements, common main reinforcement and ring-shaped stirrup, and prestressing force main reinforcement, common main reinforcement
With ring-shaped stirrup along the elongated setting of pile body y direction, pile top reinforcing bar includes a center main reinforcement and several edge main reinforcements, center
Main reinforcement is arranged along the elongated setting of the pile top longitudinal axis, edge main reinforcement along pile top bevel direction, and the quantity of prestressing force main reinforcement is four, and edge
Pile body is diagonally distributed, and common main reinforcement is arranged between prestressing force main reinforcement adjacent two-by-two with the spacing of 10cm, and ring-shaped stirrup is with 20cm
Spacing be staggered inside and outside prestressing force main reinforcement, and welding or metal binding wire by way of connect, edge master
Muscle is by bending by prestressing force main reinforcement come center main reinforcement upper end passes through steel by the bending part of reinforcing rib and prestressing force main reinforcement
Silk binding, main reinforcement lower end directly weld together with edge main reinforcement, improve the stability and intensity of concrete reinforcement structure.
The raw material of anti-corrosion concrete includes following components by weight: 310 parts of portland cement, 400 parts of coarse sand, in it is thick
160 parts of sand, 980 parts of rubble, 125 parts of water, 30 parts of steel slag, 25 parts of siliceous iron tailings powder, 18 parts of gypsum, 12 parts of high calcium ash, silicon powder
25 parts, 1.2 parts of poly carboxylic acid series water reducer, 1 part of sodium molybdate, 10 parts of styrene-butadiene latex, 0.5 part of stannous chloride, natural zeolite superfine powder
Coarse sand, medium coarse sand, steel slag, natural zeolite superfine powder, siliceous iron tailings is added in 15 parts, 1 part of air entraining agent, 220 parts of superfined flyash
Powder, silicon powder are realized in concrete material and are sufficient filling with using the difference of each component partial size, are reduced between each component particle
Gap, improve pore structure, keep concrete more closely knit, significantly improve the impermeability, corrosion resistance and intensity of concrete, silicon
Matter iron tailings powder, sodium molybdate, sodium nitrite, stannous chloride are used cooperatively, and are effectively slowed down or are prevented chemical substance to concrete
It corrodes, wherein siliceous iron tailings powder and steel slag mating reaction increase the later strength of concrete；The poly carboxylic acid series water reducer of addition
Performance is stablized after modified, is easy to store, and the production suitable for ready-mixed concrete needs, and is used in combination, increases with air entraining agent
Amount of air entrainment effectively improves water-reducing rate, reduces the ratio of mud, admixes in concrete, generates a large amount of small and independent minute bubbles, simultaneously
Improve pore structure, improves mobility, pumpability, water-retaining property and the slump of concrete.
Please refer to Fig. 2-5, bicyclic magnetic conductance device includes active magnet ring 3 and driven magnet ring 4, active magnet ring 3 and 1 phase of external mold
Match, driven magnet ring 4 matches with internal model 2, and 1 rear and front end of external mold, which is dug, sliding slot 5, and 3 inner end of active magnet ring is equipped with a pair
The idler wheel to match with sliding slot 5,3 inner end of active magnet ring, which is dug, first annular cavity, and there are four annulars for installation in toroidal cavity
The electromagnet 9 of distribution, driven 4 inner end of magnet ring, which is dug, the second toroidal cavity, and annular air-pocket 7 is equipped in the second toroidal cavity,
Driven 4 outer end of magnet ring dig have it is several it is equally distributed release liquid micropore 6, and release liquid micropore 6 and be connected with the second toroidal cavity, the
It is filled with salt resistance alkali preservative 8 in second ring cavity, the effect using magnetic attraction absorption may be implemented, cooperation annular air-pocket 7
It at the uniform velocity squeezes, driving salt resistance alkali preservative 8 forms etch resistant layer in concrete surface and not only bonds due to being integrated molding
Power is big, while can play excellent anti-corrosion effects.
Referring to Fig. 4, driven magnet ring 4 is made of ferromagnetic metal material, the aperture for releasing liquid micropore 6 is 0.2mm, and is released
The quantity of liquid micropore 6 is 16, and driven magnet ring 4 can respond the magnetic attraction of electromagnet 9 and then realize synchronizing moving, and by releasing
Liquid micropore 6 uniformly adds salt resistance alkali preservative 8 into concrete, is easy to etch resistant layer in the seamless-molding on surface.
The raw material of salt resistance alkali preservative 8 includes following components by weight: 20 parts of micro- silicon ash, concrete expansion chamotte powder 10
Part, 20 parts of super-fine limestone powder, 0.1 part of ammonium heptamolybdate, 0.1 part of calgon, 0.05 part of sodium gluconate, nanoemulsions 30
Part, 15 parts and 25 parts of polypropylene fibre of the ferromagnetic solution of nanometer substantially increase concrete in seawater or dirt by the way that micro- silicon ash is added
Contaminate the intensity of each age in water body environment；By the addition of silicon ash and ultra-fine mountain flour, under the action of effective chloride-penetration resistance,
Make the electric flux of each age concrete, chloride diffusion coefficient is decreased obviously；By the way that ammonium heptamolybdate, calgon is added,
There is apparent anti-rust action to the metal component in concrete, extends the service life of the metal components such as reinforcing bar；Gluconic acid
Sodium can increase the plasticity and intensity of concrete, and have retardation, increase late strength of concrete, greatly improve agent on crack resistance of concrete
Compressive Strength ratio, nanoemulsions provide the function of barrier and waterproof under the premise of keeping good gluing function, it can promote to form a film
Reticular structure can be formed afterwards can increase the viscosity of cement slurry, can greatly improve the flowing dispersibility of cement slurry, and nanometer is ferromagnetic
Solution assigns salt resistance alkali preservative 8 magnetism, is attached on polypropylene fibre together, reduces the surface tension of cement slurry, aquation mistake
In journey generate silicate phase hyrate crystal concrete surface formed hydrophobic film, inside concrete being capable of filling concrete
Capillary channel between particle forms fine and close inierpeneirating network structure, significantly improves concrete and resists in corrosive medium infiltration
The ability and anti-permeability performance that portion causes structure to destroy.
Polypropylene fibre rough surface is porous, and diameter is 10-20 μm, and the length of polypropylene fibre is 5-10mm, significantly
Improve fiber and binding force that cement base is gathered materials, fiber can be dispersed in rapidly in concrete easily forms a kind of unrest to branch
Support body system has dispersed the directional stress of concrete, prevents the occurrence and development of pre-existing fracture in concrete, eliminates or reduce and is primary
The quantity and scale of microcrack substantially increase anti-cracking concrete impermeability, improve toughness of concrete, to extend concrete
Service life, there is certain intensity additionally, due to fiber itself, fiber is dispersed in the anchoring in concrete and formed
Effect, certain failure energy is can absorb in moment, is equivalent to " the secondary reinforcing rib " of concrete.
The salt resistance alkali preservative 8 of every cubic metre of anti-corrosion concrete addition 8%-10%, technical staff can be according to existing
Field actual conditions voluntarily select adjustment 8 dosage of salt resistance alkali preservative.
When addition, technical staff after the completion of anti-corrosion concreting, start electromagnet 9 so that active magnet ring 3 with from
It is established between dynamic magnet ring 4 every empty magnetic connection, while starting the uniformly slow inflation of annular air-pocket 7, mobile active magnet ring 3
Driven 4 synchronizing moving of magnet ring is driven, for driven magnet ring 4 while mobile, the salt resistance alkali preservative 8 in the second toroidal cavity is in ring
Under the squeezing action of shape air bag 7, uniformly spread into anti-corrosion concrete from releasing in liquid micropore 6, while in the magnetic of electromagnet 9
It is mobile to anti-corrosion concrete surface layer under field action, the bubble in concrete can be punctured in mobile process, realize micro- work that vibrates
With the compaction rate of raising anti-corrosion concrete can replace traditional electric vibrating, effect of vibrating on a microscopic level is wanted
It is more superior, while salt resistance alkali preservative 8 forms the anti-of one in anti-corrosion concrete surface under magnetic fields together
Corrosion layer, and due to the continuity in magnetic field, polypropylene fibre is since magnetism can be interconnected to form fine and close network structure, in turn
Seamless anticorrosive effect is realized in carrying by fighting etching component, can be realized under high alkali environment with high salt to precast square pile
Environmental protection effect.
The present invention may be implemented uniformly to add salt resistance alkali preservative 8 into concrete in such a way that magnetic force guides, and according to
By the load effect of polypropylene fibre and the cementation of nanoemulsions, anticorrosive group is carried while assigning itself soft magnetism
Point, while concrete surface layer is mobile under the action of magnetic attraction, the bubble present in breaking concrete in moving process is realized
Micro- effect of vibrating in microcosmic point, improves the compaction rate and intensity of concrete, and on surface layer under the continuous action in magnetic field
Fine and close netted etch resistant layer is formed in conjunction with concrete, while there is superior hydrophobic barrier performance, in high alkali environment with high salt
Under not only played excellent corrosion resistance, but also there is extremely strong waterproof impervious characteristic, so improve precast square pile service life and
Intensity.
Embodiment 2:
Referring to Fig. 1, a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation, comprising the following steps:
One, prefab-form is designed according to live pile foundation actual requirement, and coats one layer of separation layer before pouring；
Two, pile body steel reinforcement cage, pile top reinforcing bar according to needed for the dimensioned of precast square pile to be prepared and stake end mesh sheet, and
It is assembled into overall skeleton；
Three, the theoretical match ratio for designing anti-corrosion concrete determines practical match ratio after carrying out test adjustment, and by practical
Match ratio prepares anti-corrosion concrete；
Four, overall skeleton is installed into prefab-form, prestressed stretch-draw is carried out by stretching machine, it is to be tensioned anti-to reinforcing bar
It is anchored after the 75% of tensile strength；
Five, tensioning after the assay was approved, pours anti-corrosion concrete, and add anti-rotten antiseepage fibre by bicyclic magnetic conductance device
Dimension；
Six, using atmospheric steam curing, left and right, demoulding obtain precast square pile after finishing processing for 24 hours.
Pile body steel reinforcement cage includes several prestressing force main reinforcements, common main reinforcement and ring-shaped stirrup, and prestressing force main reinforcement, common main reinforcement
With ring-shaped stirrup along the elongated setting of pile body y direction, pile top reinforcing bar includes a center main reinforcement and several edge main reinforcements, center
Main reinforcement is arranged along the elongated setting of the pile top longitudinal axis, edge main reinforcement along pile top bevel direction, and the quantity of prestressing force main reinforcement is four, and edge
Pile body is diagonally distributed, and common main reinforcement is arranged between prestressing force main reinforcement adjacent two-by-two with the spacing of 15cm, and ring-shaped stirrup is with 25cm
Spacing be staggered inside and outside prestressing force main reinforcement, and welding or metal binding wire by way of connect, edge master
Muscle is by bending by prestressing force main reinforcement come center main reinforcement upper end passes through steel by the bending part of reinforcing rib and prestressing force main reinforcement
Silk binding, main reinforcement lower end directly weld together with edge main reinforcement, improve the stability and intensity of concrete reinforcement structure.
The raw material of anti-corrosion concrete includes following components by weight: 340 parts of portland cement, 440 parts of coarse sand, in it is thick
220 parts of sand, 1050 parts of rubble, 150 parts of water, 35 parts of steel slag, 35 parts of siliceous iron tailings powder, 20 parts of gypsum, 16 parts of high calcium ash, silicon powder
35 parts, 1.5 parts of poly carboxylic acid series water reducer, 1 part of sodium molybdate, 12 parts of styrene-butadiene latex, 0.8 part of stannous chloride, natural zeolite superfine powder
20 parts, 1.2 parts of air entraining agent, 300 parts of superfined flyash.
Referring to Fig. 4, driven magnet ring 4 is made of ferromagnetic metal material, the aperture for releasing liquid micropore 6 is 0.4mm, and is released
The quantity of liquid micropore 6 is 16, and driven magnet ring 4 can respond the magnetic attraction of electromagnet 9 and then realize synchronizing moving, and by releasing
Liquid micropore 6 uniformly adds salt resistance alkali preservative 8 into concrete, is easy to etch resistant layer in the seamless-molding on surface.
The raw material of salt resistance alkali preservative 8 includes following components by weight: 25 parts of micro- silicon ash, concrete expansion chamotte powder 12
Part, 25 parts of super-fine limestone powder, 0.15 part of ammonium heptamolybdate, 0.15 part of calgon, 0.08 part of sodium gluconate, nanoemulsions
18 parts and 30 parts of polypropylene fibre of the ferromagnetic solution of 35 part, nanometers.
Rest part and embodiment 1 are consistent, and details are not described herein.
Embodiment 3:
Referring to Fig. 1, a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation, comprising the following steps:
One, prefab-form is designed according to live pile foundation actual requirement, and coats one layer of separation layer before pouring；
Two, pile body steel reinforcement cage, pile top reinforcing bar according to needed for the dimensioned of precast square pile to be prepared and stake end mesh sheet, and
It is assembled into overall skeleton；
Three, the theoretical match ratio for designing anti-corrosion concrete determines practical match ratio after carrying out test adjustment, and by practical
Match ratio prepares anti-corrosion concrete；
Four, overall skeleton is installed into prefab-form, prestressed stretch-draw is carried out by stretching machine, it is to be tensioned anti-to reinforcing bar
It is anchored after the 75% of tensile strength；
Five, tensioning after the assay was approved, pours anti-corrosion concrete, and add anti-rotten antiseepage fibre by bicyclic magnetic conductance device
Dimension；
Six, using atmospheric steam curing, left and right, demoulding obtain precast square pile after finishing processing for 24 hours.
Pile body steel reinforcement cage includes several prestressing force main reinforcements, common main reinforcement and ring-shaped stirrup, and prestressing force main reinforcement, common main reinforcement
With ring-shaped stirrup along the elongated setting of pile body y direction, pile top reinforcing bar includes a center main reinforcement and several edge main reinforcements, center
Main reinforcement is arranged along the elongated setting of the pile top longitudinal axis, edge main reinforcement along pile top bevel direction, and the quantity of prestressing force main reinforcement is four, and edge
Pile body is diagonally distributed, and common main reinforcement is arranged between prestressing force main reinforcement adjacent two-by-two with the spacing of 15cm, and ring-shaped stirrup is with 30cm
Spacing be staggered inside and outside prestressing force main reinforcement, and welding or metal binding wire by way of connect, edge master
Muscle is by bending by prestressing force main reinforcement come center main reinforcement upper end passes through steel by the bending part of reinforcing rib and prestressing force main reinforcement
Silk binding, main reinforcement lower end directly weld together with edge main reinforcement, improve the stability and intensity of concrete reinforcement structure.
The raw material of anti-corrosion concrete includes following components by weight: 360 parts of portland cement, 480 parts of coarse sand, in it is thick
85 parts of sand, 1150 parts of rubble, 175 parts of water, 40 parts of steel slag, 40 parts of siliceous iron tailings powder, 25 parts of gypsum, 20 parts of high calcium ash, silicon powder
45 parts, 1.8 parts of poly carboxylic acid series water reducer, 1.2 parts of sodium molybdate, 15 parts of styrene-butadiene latex, 1 part of stannous chloride, natural zeolite superfine powder
30 parts, 1.4 parts of air entraining agent, 400 parts of superfined flyash.
Referring to Fig. 4, driven magnet ring 4 is made of ferromagnetic metal material, the aperture for releasing liquid micropore 6 is 0.5mm, and is released
The quantity of liquid micropore 6 is 16, and driven magnet ring 4 can respond the magnetic attraction of electromagnet 9 and then realize synchronizing moving, and by releasing
Liquid micropore 6 uniformly adds salt resistance alkali preservative 8 into concrete, is easy to etch resistant layer in the seamless-molding on surface.
The raw material of salt resistance alkali preservative 8 includes following components by weight: 30 parts of micro- silicon ash, concrete expansion chamotte powder 15
Part, 0 part of super-fine limestone powder, 0.2 part of ammonium heptamolybdate, 0.2 part of calgon, 0.1 part of sodium gluconate, nanoemulsions 45
Part, 20 parts and 35 parts of polypropylene fibre of the ferromagnetic solution of nanometer.
Rest part and embodiment 1 are consistent, and details are not described herein.
The foregoing is intended to be a preferred embodiment of the present invention；But scope of protection of the present invention is not limited thereto.
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation, it is characterised in that: the following steps are included:
One, prefab-form is designed according to live pile foundation actual requirement, and coats one layer of separation layer before pouring；
Two, pile body steel reinforcement cage, pile top reinforcing bar according to needed for the dimensioned of precast square pile to be prepared and stake end mesh sheet, and assemble
Integral skeleton；
Three, the theoretical match ratio for designing anti-corrosion concrete determines practical match ratio after carrying out test adjustment, and by practical cooperation
Than preparing anti-corrosion concrete；
Four, overall skeleton is installed into prefab-form, prestressed stretch-draw is carried out by stretching machine, it is to be tensioned strong to reinforcing bar tension
It is anchored after the 70%-75% of degree；
Five, tensioning after the assay was approved, pours anti-corrosion concrete, and add anti-rotten impervious fiber by bicyclic magnetic conductance device；
Six, using atmospheric steam curing, left and right, demoulding obtain precast square pile after finishing processing for 24 hours.
2. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 1, feature
Be: the prefab-form includes external mold (1) and internal model (2), and square pile forming cavity is formed between the external mold (1) and internal model (2),
The pile body portion section of the external mold (1) is square, and the pile top portion section of the external mold (1) is square cone, the internal model (2)
Section is circle.
3. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 1, feature
Be: the pile body steel reinforcement cage includes several prestressing force main reinforcements, common main reinforcement and ring-shaped stirrup, and prestressing force main reinforcement, common main
Along the elongated setting of pile body y direction, the pile top reinforcing bar includes a center main reinforcement and several edge masters for muscle and ring-shaped stirrup
Muscle, the center main reinforcement are arranged along the elongated setting of the pile top longitudinal axis, the edge main reinforcement along pile top bevel direction.
4. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 3, feature
Be: the quantity of the prestressing force main reinforcement is four, and is diagonally distributed along pile body, and the common main reinforcement is with the spacing of 10-15cm
It is arranged between prestressing force main reinforcement adjacent two-by-two, the ring-shaped stirrup is staggered with the spacing of 20-30cm in prestressing force main reinforcement
Inside and outside, and connected by way of welding or metal binding wire, the edge main reinforcement is to pass through folding by prestressing force main reinforcement
It is curved, center main reinforcement upper end by the bending part of reinforcing rib and prestressing force main reinforcement by steel wire lashing, under main ribs
End directly welds together with edge main reinforcement.
5. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 1, feature
Be: the raw material of the anti-corrosion concrete includes following components by weight: 310-360 parts of portland cement, coarse sand 400-
480 parts, 160-285 parts of medium coarse sand, 980-1150 parts of rubble, 125-175 parts of water, 30-40 parts of steel slag, siliceous iron tailings powder 25-
40 parts, 18-25 parts of gypsum, 12-20 parts of high calcium ash, 25-45 parts of silicon powder, 1.2-1.8 parts of poly carboxylic acid series water reducer, sodium molybdate 1-
1.2 parts, it is 10-15 parts of styrene-butadiene latex, 0.5-1 parts of stannous chloride, 15-30 parts of natural zeolite superfine powder, 1-1.4 parts of air entraining agent, super
220-400 parts of fine powdered coal.
6. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 1, feature
Be: the bicyclic magnetic conductance device includes active magnet ring (3) and driven magnet ring (4), the active magnet ring (3) and external mold (1) phase
Matching, the driven magnet ring (4) match with internal model (2), and external mold (1) rear and front end, which is dug, sliding slot (5), the master
Dynamic magnet ring (3) inner end is equipped with a pair of idler wheel to match with sliding slot (5), and active magnet ring (3) inner end, which is dug, the first ring
Shape cavity, there are four the electromagnet (9) of annular spread for the interior installation of the toroidal cavity, and driven magnet ring (4) inner end, which is dug, to be had
Second toroidal cavity is equipped with annular air-pocket (7) in second toroidal cavity, and the driven magnet ring (4) has if outer end is dug
Do it is equally distributed release liquid micropore (6), and release liquid micropore (6) and be connected with the second toroidal cavity, in second toroidal cavity
Filled with salt resistance alkali preservative (8).
7. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 6, feature
Be: the driven magnet ring (4) is made of ferromagnetic metal material, and the aperture for releasing liquid micropore (6) is 0.2-0.5mm,
And the quantity for releasing liquid micropore (6) is 16-24.
8. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 1, feature
Be: the raw material of the salt resistance alkali preservative (8) includes following components by weight: micro- silicon ash 20-30 parts, concrete expansion it is ripe
10-15 parts of feed powder, 20-30 parts of super-fine limestone powder, 0.1-0.2 parts of ammonium heptamolybdate, 0.1-0.2 parts of calgon, glucose
Sour sodium 0.05-0.1 parts, 30-45 parts of nanoemulsions, ferromagnetic solution 15-20 parts and 25-35 parts of polypropylene fibre of nanometer.
9. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 1, feature
Be: the polypropylene fibre rough surface is porous, and diameter is 10-20 μm, and the length of the polypropylene fibre is 5-10mm.
10. a kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation according to claim 1, feature
It is: the salt resistance alkali preservative (8) of every cubic metre of anti-corrosion concrete addition 8%-10%.
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| CN112878213A (en) * | 2021-03-30 | 2021-06-01 | 何怡 | Self-plugging concrete bridge deck maintenance process |
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| CN110387878B (en) | 2021-07-13 |
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