CN109534764A - Utilize the reinforced photovoltaic cement pipe pile and preparation method thereof of regeneration concrete - Google Patents
Utilize the reinforced photovoltaic cement pipe pile and preparation method thereof of regeneration concrete Download PDFInfo
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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
- C04B28/14—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 calcium sulfate cements
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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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2015—Sulfate resistance
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/05—Materials having an early high strength, e.g. allowing fast demoulding or formless casting
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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Abstract
The invention discloses the reinforced photovoltaic cement pipe piles and preparation method thereof using regeneration concrete, the group that the cement pipe pile includes is divided into regenerated coarse aggregate, recycled fine aggregate, cementitious material, preservative, swelling agent, early strength agent, water-reducing agent, auxiliary agent and water, the cement pipe pile the preparation method comprises the following steps: preparing regenerated coarse aggregate and recycled fine aggregate；Carbonization treatment；Determine the slump and preparation strength；Raw material is mixed, and obtains regeneration concrete；It is packed into mold, tensioning, centrifugal forming；Maintenance, demoulding is to get the cement pipe pile for utilizing regeneration concrete；The cement pipe pile is reduced costs using recycled aggregate as raw material, protects environment; material matching is reasonable, so that the compression strength of the cement pipe pile and cracking resistance are excellent, tool has good corrosion resistance and durability; the preparation process of the cement pipe pile is simple, is easy to be mass produced.
Description
Technical field
The present invention relates to photovoltaic technology field, specifically using regeneration concrete reinforced photovoltaic cement pipe pile and its
Preparation method.
Background technique
With China's industrialization, the acceleration of urbanization process, the building waste generated together is increasing, China's building
The quantity of rubbish has accounted for 1/3 of municipal refuse total amount or more.However, most building wastes are just transported without any processing
Toward countryside or rural area, air storage or landfill consume the pork barrels such as a large amount of land acquisition expense, refuse collection expense, meanwhile, clearly
The problems such as flying upward with dust, sand-lime of dropping in fortune and stacking process, causes serious environmental pollution again.
Regenerated aggregate concrete abbreviation regeneration concrete is by discarded concrete block through processing such as broken, cleaning, screenings
Afterwards, it is mixed to form recycled aggregate according to a certain percentage, a kind of novel coagulation being partly or entirely formulated instead of natural aggregate
Soil.For recycled aggregate compared with natural aggregate, recycled aggregate surface is attached with hydrated cement paste, and the presence of hydrated cement paste causes again
Raw aggregate water absorption rate is high, intensity is low, this makes regeneration concrete compared with normal concrete, and performance, which has, largely to drop
It is low.
In recent years, photovoltaic industry development is swift and violent, up to now until, China's photovoltaic total installation of generating capacity alreadys exceed 100GW,
According to the development plan of China's photovoltaic industry, future will still keep faster development speed.Civil engineering accounts in photovoltaic project
It is photovoltaic bracket and foundation engineering than the best part, there are reinforced concrete independent foundation, bar shaped in common photovoltaic bracket basis
Basis, micro perfusion pile foundation, high-strength prestress pipe pile foundation, Steel coil pile foundation etc..It is the most frequently used currently on the market
Photovoltaic plant pipe pile foundation be high-strength prestress pipe pile foundation, high-strength prestress pipe pile foundation have construction flexibility it is good
The advantages of, but there is that compression strength is low, perishable, durability is poor, casting and compacting of concrete leakiness, easy to crack, lead to pile matter
Measure the problem of difference, it is therefore desirable to research and develop a kind of concrete high-intensitive, corrosion-resistant, cracking resistance is good, pile quality is good, at low cost
Tubular pole.
Summary of the invention
The purpose of the present invention is to provide using regeneration concrete reinforced photovoltaic cement pipe pile and preparation method thereof,
To solve the problems of the prior art.
To achieve the above object, the invention provides the following technical scheme:
Using the reinforced photovoltaic cement pipe pile of regeneration concrete, which includes the group of following parts by weight
Point: it is 300-500 parts of regenerated coarse aggregate, 600-800 parts of recycled fine aggregate, 500-700 parts of cementitious material, 5-15 parts of preservative, swollen
Swollen dose 5-20 parts, 3-10 parts of early strength agent, 10-20 parts of water-reducing agent and 100-300 parts of water.
As optimization, using the reinforced photovoltaic cement pipe pile of regeneration concrete, which includes following weight
The component of number: 350-450 parts of regenerated coarse aggregate, 650-750 parts of recycled fine aggregate, 550-650 parts of cementitious material, preservative 8-
12 parts, 8-18 parts of swelling agent, 5-8 parts of early strength agent, 12-18 parts of water-reducing agent and 150-250 parts of water.
As optimization, which further includes 10-30 parts of auxiliary agent, and auxiliary agent is ethylene oxide, polyethylene glycol monostearate
The mixture of ester, nonylphenol polyoxyethylene ether and sodium carboxymethylcellulose, ethylene oxide, polyethylene glycol mono stearate, nonyl
The mass ratio of phenol polyethenoxy ether and sodium carboxymethylcellulose is 1:0.5-0.8:0.1-0.3:0.1-0.2；Epoxy in auxiliary agent
Ethane, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and sodium carboxymethylcellulose are adsorbed onto the surface of cementitious material,
Make the reduction of cementitious material surface free energies, improves the water retention property of cement, reduce the bleeding performance of concrete mix.
As optimization, cementitious material is the mixture of cement, calcium sulfate source, SILICA FUME and aluminium oxide, and cement is ordinary silicon
Any one in acid salt cement, low-heat portland cement, moderate-heat portland cement or composite Portland cement, calcium sulfate source is
Any one in calcium sulfate, gypsum, semi-hydrated gypsum or anhydrous gypsum, the quality of cement, calcium sulfate source, SILICA FUME and aluminium oxide
Than for 9-12:3-4:1:1；Cement, calcium sulfate source, SILICA FUME and aluminium oxide synergistic effect in cementitious material, have good
Bonding capacity improves admixture interfacial adhesion, greatly improves the physical and mechanical property of concrete.
As optimization, regenerated coarse aggregate is that after construction waste crushing, screening, will obtain the continuous grade that partial size is 4.8-42mm
The regenerated coarse aggregate matched, recycled fine aggregate are that after construction waste crushing, screening, will obtain the continuous grade that partial size is 0.05-4.5mm
The recycled fine aggregate matched；Regenerated coarse aggregate and recycled fine aggregate of the invention is that building waste obtains after broken, screening
, the effective rate of utilization of building waste is improved, economic benefit is realized, and can also play the role of protecting environment, then
Raw coarse aggregate and recycled fine aggregate are continuous grading, and gradation is reasonable, and recycled fine aggregate is filled in the thick bone of regeneration well
In the gap of material, the sedimentation contraction and self-constriction of concrete itself are reduced.
As optimization, preservative is nipabutyl sodium, 2- bromo-2-nitro-1,3-propylene glycol, decoyl hydroxyl oxime
One or both of acid, parahydroxyacet-ophenone；Preservative is sufficiently humidified so as to cementitious material, and hydrated cementitious is abundant, hydrated product
It is evenly distributed, refines the aperture of concrete, concrete inner structure is more continuous and uniform, and defect is reduced, and improves coagulation
The compactness of the concrete of soil, weakens the infiltration of chloride ion and sulfate significantly with diffusion, improves the corrosion resistance of tubular pole.
As optimization, swelling agent is the mixture of silica, magnesia and entringite, silica, magnesia and entringite
Mass ratio be 1-2.5:1:1；Tubular pole is in maintenance processes, due to temperature change, and tubular pole volume is caused to be expanded with heat and contract with cold, expansion
Silica, magnesia and entringite three synergistic effect can make up the volume shrinkage mass of tubular pole in agent, avoid producing inside tubular pole
Raw larger shrinkage stress, causes the cracking of tubular pole.
As optimization, early strength agent is the mixture of inorganic salts early strength agent and organic species early strength agent, and inorganic salts are early strong
The mass ratio of agent and organic species early strength agent is 1-2:1, and inorganic salts early strength agent is light calcium powder, sodium nitrate, aluminium chloride, sulfuric acid
One of potassium or it is a variety of compound, organic species early strength agent be calcium acetate, triisopropanolamine, methyl diethanolamine, methanol
One of or a variety of compound；Organic species early strength agent can be improved the surface-active of cement, admixture, and inorganic salts are early
Strong agent can accelerate hydration shell rupture, organic species early strength agent and inorganic salts early strength agent synergistic effect, can promote cement, mix
The hydration reaction for closing material, improves the early strength of tubular pole.
As optimization, water-reducing agent is the mixing of lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass
Object, the lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass mass ratio be 1:1:0.001-
0.01:0.001-0.05, lignosulfonates are any in potassium lignosulfonate, magnesium lignosulfonate or calcium lignosulfonate
It is a kind of；Lignosulfonates have the advantages that water-reducing rate is big, and tubular pole is made to have good anti-freezing property, naphthalene sulphonate formaldehyde
Condensation product has the advantages that volume is small, water-reducing rate is high, lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and water glass
Glass synergistic effect, makes concrete have good mobility, reinforcing effect is good, and the shrinking percentage of tubular pole is low.
Utilize the preparation method of the reinforced photovoltaic cement pipe pile of regeneration concrete, the preparation method packet of the cement pipe pile
Include following steps:
(1) preparation of regenerated coarse aggregate and recycled fine aggregate；
(2) it is carbonized；
(3) slump and preparation strength are determined, minimum aperture is found out；
(4) regenerated coarse aggregate, recycled fine aggregate and water mix, and obtain mixture；
(5) cementitious material, preservative, swelling agent, early strength agent, water-reducing agent and auxiliary agent are weighed to be added in mixture, mixes, obtains
Regeneration concrete；
(6) mold, tensioning, centrifugal forming are packed into；
(7) it conserves, demoulding is to get the cement pipe pile for utilizing regeneration concrete.
As optimization, using the preparation method of the reinforced photovoltaic cement pipe pile of regeneration concrete, the cement pipe pile
Preparation method the following steps are included:
(1) building waste is crushed, sieved, obtain regenerated coarse aggregate and recycled fine aggregate；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are subjected to carbonization treatment；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum is found out according to aggregate maximum unit quality
Gap；
(4) the resulting regenerated coarse aggregate of step (2), recycled fine aggregate and water are weighed to be added in blender, is uniformly mixed, obtains
Mixture；
(5) it is resulting mixed that cementitious material, preservative, swelling agent, early strength agent, water-reducing agent and auxiliary agent addition step (4) are weighed
It closes in material, stirring makes the slump of concrete reach predicted value, obtains regeneration concrete；
(6) the resulting regeneration concrete of step (5) is packed into mold, tensioning, centrifugal forming；
(7) the molding tubular pole of step (6) is conserved, demoulding is to get the cement pipe pile for utilizing regeneration concrete.
As optimization, using the preparation method of the reinforced photovoltaic cement pipe pile of regeneration concrete, the cement pipe pile
Preparation method the following steps are included:
(1) after being crushed, being sieved by building waste, the regenerated coarse aggregate for the continuous grading that partial size is 4.8-42mm is obtained
With the recycled fine aggregate for the continuous grading that partial size is 0.05-4.5mm；By building waste by simple broken, screening, obtain again
Raw coarse aggregate and recycled fine aggregate solve the problems, such as that building waste pollutes environment, turn waste into wealth, realize building waste
Sustainable development, and reduce cost；Regenerated coarse aggregate and recycled fine aggregate are continuous grading, and gradation is reasonable, then
Raw fine aggregate is filled in well in the gap of regenerated coarse aggregate, reduces the sedimentation contraction and self-constriction of concrete itself；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are put into closed container and carry out carbonization treatment,
The carbonation rate of regenerated coarse aggregate and recycled fine aggregate is set to be greater than 98%, the relative humidity controlled in closed container in carbonisation is
50-95%, gas concentration lwevel 40-95%；Recycled aggregate is compared with natural aggregate, and surface is attached with hydrated cement paste, firmly
The presence for changing cement slurry causes the water absorption rate of recycled aggregate high, and intensity is low, so that regeneration concrete is compared with normal concrete,
Performance substantially reduces, and in order to improve the physical and mechanical property of recycled aggregate, improves the performance of concrete, the present invention is to recycled aggregate
Carry out carbonization treatment, carbonization treatment be carbon dioxide in hardened cement paste calcium hydroxide and hydrated calcium silicate react generation
Calcium carbonate, causes that hardened cement paste is loose, falls off, and by carrying out carbonization treatment to recycled aggregate, improves the object of recycled aggregate
Mechanical property is managed, high performance regeneration concrete is prepared to be subsequent and prepares, the raising of regeneration concrete performance, to concrete
It recycles and is of great significance with sustainable development；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum is found out according to aggregate maximum unit quality
Gap, the slump of concrete are 3-8cm, the design strength of concrete and the relationship of preparation strength are as follows: preparation strength=(design
+ 9.6MPa by force)/0.9；Concrete slump is primarily referred to as the plasticizing capacity and pumpable performance of concrete, influences Control Measures for Concrete Slump
The factor of degree mainly has the dosage etc. of gradation differentials, water content, additive, determines the slump and preparation strength, is subsequent true
The proportion of fixed each raw material is prepared；The slump refers to the workability of concrete, water-retaining property, mobility and adhesive aggregation including concrete
The phenomenon that property, the slump is too big, and concrete will appear isolation, the slump is too small, and admixture can not flow, true by many experiments
The fixed optimal slump of concrete of the present invention is 3-8cm, and under the slump, every physical and mechanical property of concrete is showed
Well；
(4) regenerated coarse aggregate 300-500 parts resulting step (2), 600-800 parts of recycled fine aggregate and water 100- are weighed
In 300 parts of addition blenders, it is uniformly mixed, obtains mixture；Regenerated coarse aggregate and recycled fine aggregate are continuous grading, and grade
With reasonable, recycled fine aggregate is filled in well in the gap of regenerated coarse aggregate by blender stirring, reduces concrete
The sedimentation contraction and self-constriction of itself；
(5) 500-700 parts of cementitious material, 5-15 parts of preservative, 5-20 parts of swelling agent, 3-10 parts of early strength agent, diminishing are weighed
In 10-20 parts and auxiliary agent 10-30 parts resulting mixture of addition step (4) of agent, 30-50min is stirred, the slump of concrete is made
Reach predicted value, obtains regeneration concrete；The purpose of stirring is to destroy the agglomeration of admixture, promotes the development of diffusing phenomenon,
The initial water compound film wrapping layer on cementitious material surface is destroyed, collision friction between each component is promoted, reduces the shadow of dust film
It rings, improves each component cell cube and participate in the number of movement and the crossover frequency of motion profile, accelerate homogeneity, make each component macro
It sees and microcosmic uniform；
(6) step (5) resulting regeneration concrete is fitted into the mold for being equipped with reinforcement cage skeleton by charge car, cloth
Prestressed stretch-draw is carried out after the completion of material, and the strip pile die after tensioning is then put into a centrifuge into carry out centrifugal forming；
(7) the molding pipe pile die of step (6) is put into curing pool and is conserved, demoulding is after maintenance to get using again
The cement pipe pile of growing concrete.
Centrifugal process as optimization, in step (6) are as follows: strip pile die is successively in the low speed that revolving speed is 60-90r/min
Lower centrifugation 2-5min is centrifuged 5-8min, static 3-5min in the case where revolving speed is 150-300r/min low-medium speed, is 400- in revolving speed
500r/min high speed is lower to be centrifuged 5-10min.Low-speed centrifugal, makes big particle tight at centrifugation a period of time due to the effect of centrifugal force
Mould inner wall is pasted, static a period of time makes bulky grain from settling and shrinking, more close to mould inner wall, then increases revolving speed, be centrifuged
For a period of time, slightly small particle is made to be close to mould inner wall, successively by low speed, low-medium speed, it is static and be carried out at high speed tubular pole at
Type, particle stacked in multi-layers squeeze, and reduce porosity, improve the intensity of concrete, obtain more excellent performance of regeneration concrete
Tubular pole.
Maintenance processes as optimization, in step (7) are as follows: molding pipe pile die is put into curing pool, is 50-80 in temperature
DEG C, conserve 3-5h under normal pressure, then 150-180 DEG C is warming up to the speed of 10-20 DEG C/min, in the case where pressure is 0.8-1.2MPa
5-10h is conserved, later cooled to room temperature；The present invention first uses atmospheric steam curing mode, then uses autoclave curing
Mode greatly improves each physical and mechanical property of regeneration concrete tubular pole.
Compared with prior art, the beneficial effects of the present invention are:
First is that the present invention utilizes the reinforced photovoltaic cement pipe pile of regeneration concrete, used in the raw material of the cement pipe pile
Regenerated coarse aggregate and recycled fine aggregate, regenerated coarse aggregate and recycled fine aggregate are building waste after the broken, screening
It arrives, solves the problems, such as that building waste pollutes environment, turn waste into wealth, realize the sustainable development of building waste, and
And reduce cost；Regenerated coarse aggregate and recycled fine aggregate are continuous grading, and gradation is reasonable, and recycled fine aggregate is filled out well
It fills in the gap of regenerated coarse aggregate, reduces the sedimentation contraction and self-constriction of concrete itself；
Cement, calcium sulfate source, SILICA FUME and aluminium oxide synergistic effect in cementitious material, have good bonding capacity,
Admixture interfacial adhesion is improved, the physical and mechanical property of concrete is greatly improved；Ethylene oxide, poly- second two in auxiliary agent
Alcohol monostearate, nonylphenol polyoxyethylene ether and sodium carboxymethylcellulose are adsorbed onto the surface of cementitious material, make cementitious material
Surface free energies reduce, and improve the water retention property of cement, reduce the bleeding performance of concrete mix；
Preservative is sufficiently humidified so as to cementitious material, and hydrated cementitious is abundant, and hydrated product is evenly distributed, and makes the aperture of concrete
Refinement, concrete inner structure is more continuous and uniform, and defect is reduced, and improves the compactness of the concrete of concrete, makes chloride ion
Infiltration with sulfate weakens significantly with diffusion, improves the corrosion resistance of tubular pole；
Tubular pole is in maintenance processes, due to temperature change, and tubular pole volume is caused to be expanded with heat and contract with cold, silica in swelling agent,
Magnesia and entringite three synergistic effect can make up the volume shrinkage mass of tubular pole, and the larger contraction of generation inside tubular pole is avoided to answer
Power causes the cracking of tubular pole；
Organic species early strength agent can be improved the surface-active of cement, admixture, and inorganic salts early strength agent can accelerate water
Change film rupture, organic species early strength agent and inorganic salts early strength agent synergistic effect, the aquation of cement, admixture can be promoted anti-
It answers, improves the early strength of tubular pole；
Lignosulfonates have the advantages that water-reducing rate is big, and tubular pole is made to have good anti-freezing property, naphthalene sulfonate
Formaldehyde condensation products have the advantages that volume is small, water-reducing rate is high, lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and
Waterglass synergistic effect, makes concrete have good mobility, reinforcing effect is good, and the shrinking percentage of tubular pole is low；
Second is that the present invention using regeneration concrete reinforced photovoltaic cement pipe pile preparation method, to recycled aggregate into
Row carbonization treatment, for recycled aggregate compared with natural aggregate, surface is attached with hydrated cement paste, and the presence of hydrated cement paste causes
The water absorption rate of recycled aggregate is high, and intensity is low, so that regeneration concrete, compared with normal concrete, performance substantially reduces, in order to
The physical and mechanical property for improving recycled aggregate, improves the performance of concrete, and the present invention carries out carbonization treatment, carbonization to recycled aggregate
Processing be carbon dioxide in hardened cement paste calcium hydroxide and hydrated calcium silicate react and generate calcium carbonate, cause petrifying water
Slurry body is loose, falls off, and by carrying out carbonization treatment to recycled aggregate, improves the physical and mechanical property of recycled aggregate, is subsequent
Prepare high performance regeneration concrete to prepare, the raising of regeneration concrete performance, to concrete recycle with it is sustainable
Development is of great significance；
Determine that the slump and preparation strength, the slump are primarily referred to as the plasticizing capacity and pumpable performance of concrete, influence to mix
The factor of the solidifying soil slump mainly has the dosage etc. of gradation differentials, water content, additive, determines the slump and configuration intensity,
Proportion for each raw material of subsequent determination is prepared；The slump refers to the workability of concrete, water-retaining property, flowing including concrete
The phenomenon that property and cohesiveness, the slump are too big, and concrete will appear isolation, the slump is too small, and admixture can not flow, through excessive
Amount experiment determines that the optimal slump of concrete of the present invention is 3-8cm, under the slump, every physical mechanics property of concrete
It can show good；
Regenerated coarse aggregate, recycled fine aggregate and water are added in blender, stirred, is uniformly mixed, regenerated coarse aggregate and again
Raw fine aggregate is continuous grading, and gradation is reasonable, so that recycled fine aggregate is filled in regeneration well by blender stirring
In the gap of coarse aggregate, the sedimentation contraction and self-constriction of concrete itself are reduced；
Cementitious material, preservative, swelling agent, early strength agent and water-reducing agent are added in step (4) resulting mixture, stirred
It mixes, is uniformly mixed, the purpose of stirring is to destroy the agglomeration of admixture, promotes the development of diffusing phenomenon, destroys cementitious material
The initial water compound film wrapping layer on surface promotes collision friction between each component, reduces the influence of dust film, improves each component
The number of cell cube participation movement and the crossover frequency of motion profile, accelerate homogeneity, make each component macroscopical and microcosmic equal
It is even；
Centrifugal forming, low-speed centrifugal, are close to big particle in mold at centrifugation a period of time
Wall, static a period of time make bulky grain from settling and shrinking, more close to mould inner wall, then revolving speed are increased, when being centrifuged one section
Between, so that slightly small particle is close to mould inner wall, successively by low speed, low-medium speed, static and be carried out at high speed tubular pole molding, particle
Stacked in multi-layers, extruding reduce porosity, improve the intensity of concrete, obtain more excellent performance of regeneration concrete tubular pole.
Maintenance, the present invention first uses atmospheric steam curing mode, then uses autoclave curing mode, greatly improves again
Each physical and mechanical property of growing concrete tubular pole.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1:
Using the reinforced photovoltaic cement pipe pile of regeneration concrete, which includes the group of following parts by weight
Point: 300 parts of regenerated coarse aggregate, 600 parts of recycled fine aggregate, 500 parts of cementitious material, 5 parts of preservative, 5 parts of swelling agent, early strength agent 3
Part, 10 parts of water-reducing agent, 10 parts of auxiliary agent and 100 parts of water.
Auxiliary agent in above-mentioned raw materials is ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxylic first
The mixture of base sodium cellulosate, ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxymethyl cellulose
The mass ratio of sodium is 1:0.5:0.1:0.1.
Cementitious material in above-mentioned raw materials is the mixture of ordinary portland cement, calcium sulfate, SILICA FUME and aluminium oxide, general
The mass ratio for leading to portland cement, calcium sulfate, SILICA FUME and aluminium oxide is 9:3:1:1.
Regenerated coarse aggregate in above-mentioned raw materials is that after construction waste crushing, screening, will obtain the continuous grade that partial size is 4.8mm
The regenerated coarse aggregate matched, recycled fine aggregate are that after construction waste crushing, screening, will obtain the continuous grading that partial size is 0.05mm
Recycled fine aggregate.
Preservative in above-mentioned raw materials is nipabutyl sodium；
Swelling agent in above-mentioned raw materials is the mixture of silica, magnesia and entringite, silica, magnesia and calcium alum
The mass ratio of stone is 1:1:1；
Early strength agent in above-mentioned raw materials is the mixture of light calcium powder and calcium acetate, the mass ratio of light calcium powder and calcium acetate
For 1:1；
Water-reducing agent in above-mentioned raw materials is potassium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass
Mixture, potassium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass mass ratio be 1:1:0.001:
0.001。
The reinforced photovoltaic cement pipe pile of regeneration concrete, the preparation of the cement pipe pile are prepared by using above-mentioned raw materials
Method the following steps are included:
(1) after building waste being crushed, being sieved, obtain partial size be 4.8mm continuous grading regenerated coarse aggregate and
Partial size is the recycled fine aggregate of the continuous grading of 0.05mm；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are put into closed container and carry out carbonization treatment,
The carbonation rate of regenerated coarse aggregate and recycled fine aggregate is set to be greater than 98%, the relative humidity controlled in closed container in carbonisation is
50%, gas concentration lwevel 40%；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum is found out according to aggregate maximum unit quality
Gap, the slump of concrete are 3cm, the design strength of concrete and the relationship of preparation strength are as follows: preparation strength=(design is strong
Degree+9.6MPa)/0.9；
(4) 100 parts of 300 parts of the resulting regenerated coarse aggregate of step (2), 600 parts of recycled fine aggregate and water addition stirrings are weighed
In machine, it is uniformly mixed, obtains mixture；
(5) 500 parts of cementitious material, 5 parts of preservative, 5 parts of swelling agent, 3 parts of early strength agent, 10 parts of water-reducing agent and auxiliary agent 10 are weighed
Part is added in step (4) resulting mixture, stirs 30min, so that the slump of concrete is reached predicted value, obtain regeneration coagulation
Soil；
(6) step (5) resulting regeneration concrete is fitted into the mold for being equipped with reinforcement cage skeleton by charge car, cloth
Prestressed stretch-draw is carried out after the completion of material, the strip pile die after tensioning is then put into a centrifuge into carry out centrifugal forming, is centrifuged
Process are as follows: strip pile die is successively centrifuged 2min in the case where revolving speed is the low speed of 60r/min, in the low-medium speed that revolving speed is 150r/min
Lower centrifugation 5min, static 3min are centrifuged 5min in the case where revolving speed is the high speed of 400r/min；
(7) the molding pipe pile die of step (6) is put into curing pool and is conserved, demoulding is after maintenance to get using again
The cement pipe pile of growing concrete, maintenance processes are as follows: the molding pipe pile die is put into curing pool, is 50 DEG C, under normal pressure in temperature
3h is conserved, is then warming up to 150 DEG C with the speed of 10 DEG C/min, 5h is conserved in the case where pressure is 0.8MPa, naturally cools to later
Room temperature.
Embodiment 2:
Using the reinforced photovoltaic cement pipe pile of regeneration concrete, which includes the group of following parts by weight
Point: 350 parts of regenerated coarse aggregate, 650 parts of recycled fine aggregate, 550 parts of cementitious material, 6 parts of preservative, 8 parts of swelling agent, early strength agent 5
Part, 12 parts of water-reducing agent, 15 parts of auxiliary agent and 150 parts of water.
Auxiliary agent in above-mentioned raw materials is ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxylic first
The mixture of base sodium cellulosate, ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxymethyl cellulose
The mass ratio of sodium is 1:0.6:0.15:0.15.
Cementitious material in above-mentioned raw materials is the mixture of low-heat portland cement, gypsum, SILICA FUME and aluminium oxide, low-heat
Portland cement, gypsum, SILICA FUME and aluminium oxide mass ratio be 9.5:3.2:1:1.
Regenerated coarse aggregate in above-mentioned raw materials is that after construction waste crushing, screening, will obtain the continuous grade that partial size is 10mm
The regenerated coarse aggregate matched, recycled fine aggregate are that after construction waste crushing, screening, will obtain the continuous grading that partial size is 1.0mm
Recycled fine aggregate.
Preservative in above-mentioned raw materials is the bromo- 2- nitro -1,3- propylene glycol of 2-；
Swelling agent in above-mentioned raw materials is the mixture of silica, magnesia and entringite, silica, magnesia and calcium alum
The mass ratio of stone is 1.5:1:1；
Early strength agent in above-mentioned raw materials is the mixture of sodium nitrate and triisopropanolamine, the matter of sodium nitrate and triisopropanolamine
Amount is than being 1.2:1；
Water-reducing agent in above-mentioned raw materials is magnesium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass
Mixture, magnesium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass mass ratio be 1:1:0.002:
0.01。
The reinforced photovoltaic cement pipe pile of regeneration concrete, the preparation of the cement pipe pile are prepared by using above-mentioned raw materials
Method the following steps are included:
(1) after being crushed, being sieved by building waste, the regenerated coarse aggregate and grain for the continuous grading that partial size is 10mm are obtained
Diameter is the recycled fine aggregate of the continuous grading of 1.0mm；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are put into closed container and carry out carbonization treatment,
The carbonation rate of regenerated coarse aggregate and recycled fine aggregate is set to be greater than 98%, the relative humidity controlled in closed container in carbonisation is
60%, gas concentration lwevel 50%；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum is found out according to aggregate maximum unit quality
Gap, the slump of concrete are 4cm, the design strength of concrete and the relationship of preparation strength are as follows: preparation strength=(design is strong
Degree+9.6MPa)/0.9；
(4) 150 parts of 350 parts of the resulting regenerated coarse aggregate of step (2), 650 parts of recycled fine aggregate and water addition stirrings are weighed
In machine, it is uniformly mixed, obtains mixture；
(5) 550 parts of cementitious material, 6 parts of preservative, 8 parts of swelling agent, 5 parts of early strength agent, 12 parts of water-reducing agent and auxiliary agent 15 are weighed
Part is added in step (4) resulting mixture, stirs 35min, so that the slump of concrete is reached predicted value, obtain regeneration coagulation
Soil；
(6) step (5) resulting regeneration concrete is fitted into the mold for being equipped with reinforcement cage skeleton by charge car, cloth
Prestressed stretch-draw is carried out after the completion of material, the strip pile die after tensioning is then put into a centrifuge into carry out centrifugal forming, is centrifuged
Process are as follows: strip pile die successively revolving speed be 70r/min low speed under be centrifuged 2.5min, revolving speed be 180r/min it is low in
Speed is lower to be centrifuged 5.5min, static 3.5min, is centrifuged 6min in the case where revolving speed is the high speed of 420r/min；
(7) the molding pipe pile die of step (6) is put into curing pool and is conserved, demoulding is after maintenance to get using again
The cement pipe pile of growing concrete, maintenance processes are as follows: the molding pipe pile die is put into curing pool, is 55 DEG C, under normal pressure in temperature
3.5h is conserved, is then warming up to 155 DEG C with the speed of 12 DEG C/min, conserves 6h in the case where pressure is 0.9MPa, later natural cooling
To room temperature.
Embodiment 3:
Using the reinforced photovoltaic cement pipe pile of regeneration concrete, which includes the group of following parts by weight
Point: 400 parts of regenerated coarse aggregate, 700 parts of recycled fine aggregate, 600 parts of cementitious material, 5-15 parts of preservative, 12.5 parts of swelling agent, morning
Strong 6.5 parts of agent, 15 parts of water-reducing agent, 20 parts of auxiliary agent and 200 parts of water.
Auxiliary agent in above-mentioned raw materials is ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxylic first
The mixture of base sodium cellulosate, ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxymethyl cellulose
The mass ratio of sodium is 1:0.65:0.2:0.15.
Cementitious material in above-mentioned raw materials is the mixture of moderate-heat portland cement, semi-hydrated gypsum, SILICA FUME and aluminium oxide,
Moderate-heat portland cement, semi-hydrated gypsum, SILICA FUME and aluminium oxide mass ratio be 10.5:3.5:1:1.
Regenerated coarse aggregate in above-mentioned raw materials is that after construction waste crushing, screening, will obtain the continuous grade that partial size is 24mm
The regenerated coarse aggregate matched, recycled fine aggregate are that after construction waste crushing, screening, will obtain the continuous grading that partial size is 2.5mm
Recycled fine aggregate.
Preservative in above-mentioned raw materials is decoyl hydroximic acid；
Swelling agent in above-mentioned raw materials is the mixture of silica, magnesia and entringite, silica, magnesia and calcium alum
The mass ratio of stone is 1.5:1:1；
Early strength agent in above-mentioned raw materials is the mixture of aluminium chloride and methyl diethanolamine, aluminium chloride and methyl diethanolamine
Mass ratio be 1.5:1；
Water-reducing agent in above-mentioned raw materials is calcium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass
Mixture, calcium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass mass ratio be 1:1:0.005:
0.03。
The reinforced photovoltaic cement pipe pile of regeneration concrete, the preparation of the cement pipe pile are prepared by using above-mentioned raw materials
Method the following steps are included:
(1) after being crushed, being sieved by building waste, the regenerated coarse aggregate and grain for the continuous grading that partial size is 24mm are obtained
Diameter is the recycled fine aggregate of the continuous grading of 2.5mm；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are put into closed container and carry out carbonization treatment,
The carbonation rate of regenerated coarse aggregate and recycled fine aggregate is set to be greater than 98%, the relative humidity controlled in closed container in carbonisation is
75%, gas concentration lwevel 65%；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum is found out according to aggregate maximum unit quality
Gap, the slump of concrete are 5.5cm, the design strength of concrete and the relationship of preparation strength are as follows: preparation strength=(design
Intensity+9.6MPa)/0.9；
(4) 200 parts of 400 parts of the resulting regenerated coarse aggregate of step (2), 700 parts of recycled fine aggregate and water addition stirrings are weighed
In machine, it is uniformly mixed, obtains mixture；
(5) 600 parts of cementitious material, 5-15 parts of preservative, 12.5 parts of swelling agent, 6.5 parts of early strength agent, 15 parts of water-reducing agent are weighed
In 20 parts of resulting mixtures of addition step (4) of auxiliary agent, 40min is stirred, so that the slump of concrete is reached predicted value, obtains again
Growing concrete；
(6) step (5) resulting regeneration concrete is fitted into the mold for being equipped with reinforcement cage skeleton by charge car, cloth
Prestressed stretch-draw is carried out after the completion of material, the strip pile die after tensioning is then put into a centrifuge into carry out centrifugal forming, is centrifuged
Process are as follows: strip pile die successively revolving speed be 75r/min low speed under be centrifuged 3.5min, revolving speed be 225r/min it is low in
Speed is lower to be centrifuged 6.5min, static 4min, is centrifuged 7.5min in the case where revolving speed is the high speed of 450r/min；
(7) the molding pipe pile die of step (6) is put into curing pool and is conserved, demoulding is after maintenance to get using again
The cement pipe pile of growing concrete, maintenance processes are as follows: the molding pipe pile die is put into curing pool, is 65 DEG C, under normal pressure in temperature
4h is conserved, is then warming up to 165 DEG C with the speed of 15 DEG C/min, conserves 7.5h in the case where pressure is 1.0MPa, later natural cooling
To room temperature.
Embodiment 4:
Using the reinforced photovoltaic cement pipe pile of regeneration concrete, which includes the group of following parts by weight
Point: 450 parts of regenerated coarse aggregate, 750 parts of recycled fine aggregate, 650 parts of cementitious material, 12 parts of preservative, 18 parts of swelling agent, early strength agent
8 parts, 18 parts of water-reducing agent, 28 parts of auxiliary agent and 280 parts of water.
Auxiliary agent in above-mentioned raw materials is ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxylic first
The mixture of base sodium cellulosate, ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxymethyl cellulose
The mass ratio of sodium is 1:0.75:0.28:0.18.
Cementitious material in above-mentioned raw materials is the mixture of composite Portland cement, anhydrous gypsum, SILICA FUME and aluminium oxide,
Composite Portland cement, anhydrous gypsum, SILICA FUME and aluminium oxide mass ratio be 11.5:3.8:1:1.
Regenerated coarse aggregate in above-mentioned raw materials is that after construction waste crushing, screening, will obtain the continuous grade that partial size is 40mm
The regenerated coarse aggregate matched, recycled fine aggregate are that after construction waste crushing, screening, will obtain the continuous grading that partial size is 4.0mm
Recycled fine aggregate.
Preservative in above-mentioned raw materials is the mixture of nipabutyl sodium and parahydroxyacet-ophenone；
Swelling agent in above-mentioned raw materials is the mixture of silica, magnesia and entringite, silica, magnesia and calcium alum
The mass ratio of stone is 2.0:1:1；
Early strength agent in above-mentioned raw materials is the mixture of inorganic salts early strength agent and organic species early strength agent, and inorganic salts are early
The mass ratio of strong agent and organic species early strength agent is 1.8:1, and inorganic salts early strength agent is that light calcium powder and potassium sulfate compound,
Organic species early strength agent is that calcium acetate and methanol compound；
Water-reducing agent in above-mentioned raw materials is potassium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass
Mixture, potassium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass mass ratio be 1:1:0.008:
0.04。
The reinforced photovoltaic cement pipe pile of regeneration concrete, the preparation of the cement pipe pile are prepared by using above-mentioned raw materials
Method the following steps are included:
(1) after being crushed, being sieved by building waste, the regenerated coarse aggregate and grain for the continuous grading that partial size is 40mm are obtained
Diameter is the recycled fine aggregate of the continuous grading of 4.0mm；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are put into closed container and carry out carbonization treatment,
The carbonation rate of regenerated coarse aggregate and recycled fine aggregate is set to be greater than 98%, the relative humidity controlled in closed container in carbonisation is
90%, gas concentration lwevel 90%；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum is found out according to aggregate maximum unit quality
Gap, the slump of concrete are 7cm, the design strength of concrete and the relationship of preparation strength are as follows: preparation strength=(design is strong
Degree+9.6MPa)/0.9；
(4) 280 parts of 450 parts of the resulting regenerated coarse aggregate of step (2), 750 parts of recycled fine aggregate and water addition stirrings are weighed
In machine, it is uniformly mixed, obtains mixture；
(5) 650 parts of cementitious material, 12 parts of preservative, 18 parts of swelling agent, 8 parts of early strength agent, 18 parts of water-reducing agent and auxiliary agent are weighed
In 28 parts of resulting mixtures of addition step (4), 45min is stirred, so that the slump of concrete is reached predicted value, obtains regeneration coagulation
Soil；
(6) step (5) resulting regeneration concrete is fitted into the mold for being equipped with reinforcement cage skeleton by charge car, cloth
Prestressed stretch-draw is carried out after the completion of material, the strip pile die after tensioning is then put into a centrifuge into carry out centrifugal forming, is centrifuged
Process are as follows: strip pile die is successively centrifuged 4min in the case where revolving speed is the low speed of 80r/min, in the low-medium speed that revolving speed is 280r/min
Lower centrifugation 7min, static 4.5min are centrifuged 8min in the case where revolving speed is the high speed of 480r/min；
(7) the molding pipe pile die of step (6) is put into curing pool and is conserved, demoulding is after maintenance to get using again
The cement pipe pile of growing concrete, maintenance processes are as follows: the molding pipe pile die is put into curing pool, is 75 DEG C, under normal pressure in temperature
4.5h is conserved, is then warming up to 170 DEG C with the speed of 18 DEG C/min, conserves 8h in the case where pressure is 1.1MPa, later natural cooling
To room temperature.
Embodiment 5:
Using the reinforced photovoltaic cement pipe pile of regeneration concrete, which includes the group of following parts by weight
Point: 500 parts of regenerated coarse aggregate, 800 parts of recycled fine aggregate, 700 parts of cementitious material, 15 parts of preservative, 20 parts of swelling agent, early strength agent
10 parts, 20 parts of water-reducing agent, 30 parts of auxiliary agent and 300 parts of water.
Auxiliary agent in above-mentioned raw materials is ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxylic first
The mixture of base sodium cellulosate, ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and carboxymethyl cellulose
The mass ratio of sodium is 1:0.8:0.3:0.2.
Cementitious material in above-mentioned raw materials is the mixture of ordinary portland cement, calcium sulfate, SILICA FUME and aluminium oxide, general
The mass ratio for leading to portland cement, calcium sulfate, SILICA FUME and aluminium oxide is 12:4:1:1.
Regenerated coarse aggregate in above-mentioned raw materials is that after construction waste crushing, screening, will obtain the continuous grade that partial size is 42mm
The regenerated coarse aggregate matched, recycled fine aggregate are that after construction waste crushing, screening, will obtain the continuous grading that partial size is 4.5mm
Recycled fine aggregate.
Preservative in above-mentioned raw materials is the mixture of 2- bromo- 2- nitro -1,3- propylene glycol and decoyl hydroximic acid；
Swelling agent in above-mentioned raw materials is the mixture of silica, magnesia and entringite, silica, magnesia and calcium alum
The mass ratio of stone is 2.5:1:1；
Early strength agent in above-mentioned raw materials is the mixture of inorganic salts early strength agent and organic species early strength agent, and inorganic salts are early
The mass ratio of strong agent and organic species early strength agent is 2:1, inorganic salts early strength agent be sodium nitrate, aluminium chloride and potassium sulfate compounding and
At organic species early strength agent is that triisopropanolamine, methyl diethanolamine and methanol compound；
Water-reducing agent in above-mentioned raw materials is magnesium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass
Mixture, magnesium lignosulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass mass ratio be 1:1:0.01:0.05.
The reinforced photovoltaic cement pipe pile of regeneration concrete, the preparation of the cement pipe pile are prepared by using above-mentioned raw materials
Method the following steps are included:
(1) after being crushed, being sieved by building waste, the regenerated coarse aggregate and grain for the continuous grading that partial size is 42mm are obtained
Diameter is the recycled fine aggregate of the continuous grading of 4.5mm；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are put into closed container and carry out carbonization treatment,
The carbonation rate of regenerated coarse aggregate and recycled fine aggregate is set to be greater than 98%, the relative humidity controlled in closed container in carbonisation is
95%, gas concentration lwevel 95%；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum is found out according to aggregate maximum unit quality
Gap, the slump of concrete are 8cm, the design strength of concrete and the relationship of preparation strength are as follows: preparation strength=(design is strong
Degree+9.6MPa)/0.9；
(4) 300 parts of 500 parts of the resulting regenerated coarse aggregate of step (2), 800 parts of recycled fine aggregate and water addition stirrings are weighed
In machine, it is uniformly mixed, obtains mixture；
(5) 700 parts of cementitious material, 15 parts of preservative, 20 parts of swelling agent, 10 parts of early strength agent, 20 parts of water-reducing agent are weighed and is helped
In 30 parts of resulting mixtures of addition step (4) of agent, 50min is stirred, the slump of concrete is made to reach predicted value, must regenerated mixed
Solidifying soil；
(6) step (5) resulting regeneration concrete is fitted into the mold for being equipped with reinforcement cage skeleton by charge car, cloth
Prestressed stretch-draw is carried out after the completion of material, the strip pile die after tensioning is then put into a centrifuge into carry out centrifugal forming, is centrifuged
Process are as follows: strip pile die is successively centrifuged 5min in the case where revolving speed is the low speed of 90r/min, in the low-medium speed that revolving speed is 300r/min
Lower centrifugation 8min, static 5min are centrifuged 10min in the case where revolving speed is the high speed of 500r/min；
(7) the molding pipe pile die of step (6) is put into curing pool and is conserved, demoulding is after maintenance to get using again
The cement pipe pile of growing concrete, maintenance processes are as follows: the molding pipe pile die is put into curing pool, is 80 DEG C, under normal pressure in temperature
5h is conserved, is then warming up to 180 DEG C with the speed of 20 DEG C/min, 10h is conserved in the case where pressure is 1.2MPa, naturally cools to later
Room temperature.
Comparative example 1:
The cement pipe pile of regeneration concrete is prepared by according to the method for embodiment 5, except that preservative is not used.
Comparative example 2:
The cement pipe pile of regeneration concrete is prepared by according to the method for embodiment 5, except that swelling agent is not used.
Comparative example 3:
The cement pipe pile of regeneration concrete is prepared by according to the method for embodiment 5, except that early strength agent is not used.
Comparative example 4:
The cement pipe pile of regeneration concrete is prepared by according to the method for embodiment 5, except that being 450r/ in revolving speed
Centrifugal forming is carried out under min.
Comparative example 5:
The cement pipe pile of regeneration concrete is prepared by according to the method for embodiment 5, except that the slump of concrete
Degree is 10cm.
Effect example:
(1) laboratory sample: cement pipe pile obtained by cement pipe pile obtained by embodiment 1 to 5 and comparative example 1 to 5.
(2) experimental method:
The compression strength of laboratory sample is detected according to JTJ 270-1998 " water carrier's concrete test regulation ", is tied
Fruit is as shown in table 1.
According to GB/T 50082-2009 " Standard for test methods of longterm performance and durability of ordinary concrete standard " to experiment sample
The electric flux and chloride diffusion coefficient (RCM method) of product are detected, and the results are shown in Table 2.
According to GB/T 50152-2012 " Standard for test methods of concrete structures " and GB 13476-2009, " pre-tensioning system is answered in advance
Power concrete tubular pile " ring cross-section and limit ring cross-section of laboratory sample are detected, the results are shown in Table 3.Table 1
Table 2
Table 3
(3) experimental result and conclusion:
From table 1 it follows that cement pipe pile obtained by the embodiment of the present invention 1 to 5, is conserving 1 day, 3 days, 7 days, 14
It and compression strength after 28 days, are above cement pipe pile obtained by comparative example 1 to 5, this is because organic species early strength agent
It can be improved the surface-active of cement, admixture, inorganic salts early strength agent can accelerate hydration shell rupture, organic species early strength agent
It acts synergistically with inorganic salts early strength agent, the hydration reaction of cement, admixture can be promoted, improve the early strength of tubular pole, tie
Fruit shows that cement pipe pile obtained by the embodiment of the present invention 1 to 5 has good compressive property.
From Table 2, it can be seen that cement pipe pile obtained by the embodiment of the present invention 1 to 5,50 days electric fluxes and Cl ion 80
It diffusion coefficient is below cement pipe pile obtained by comparative example 1 to 5, this is because preservative keeps cementitious material sufficiently wet
Profit, hydrated cementitious is abundant, and hydrated product is evenly distributed, and refines the aperture of concrete, concrete inner structure is more continuous
With it is uniform, defect reduce, improve the compactness of the concrete of concrete, subtract the infiltration of chloride ion and sulfate significantly with diffusion
It is weak, improve the corrosion resistance of tubular pole, the results showed that cement pipe pile obtained by the embodiment of the present invention 1 to 5 has good corrosion resistant
Erosion and durability.
From table 3 it is observed that cement pipe pile ring cross-section and limit cracking resistance obtained by the embodiment of the present invention 1 to 5 are curved
Square is above standard value, and is higher than cement pipe pile obtained by comparative example 1 to 5, this is because silica, oxidation in swelling agent
Magnesium and entringite three synergistic effect can make up the volume shrinkage mass of tubular pole, avoid generating larger shrinkage stress inside tubular pole,
Cause the cracking of tubular pole, the results showed that cement pipe pile obtained by the embodiment of the present invention 1 to 5 has excellent mechanical property.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any label in claim should not be construed as limiting the claims involved.
Claims (10)
1. utilizing the reinforced photovoltaic cement pipe pile of regeneration concrete, which is characterized in that the cement pipe pile includes following weight
The component of number: 300-500 parts of regenerated coarse aggregate, 600-800 parts of recycled fine aggregate, 500-700 parts of cementitious material, preservative 5-
15 parts, 5-20 parts of swelling agent, 3-10 parts of early strength agent, 10-20 parts of water-reducing agent and 100-300 parts of water.
2. the reinforced photovoltaic cement pipe pile according to claim 1 using regeneration concrete, it is characterised in that: the water
Mud tubular pole further includes 10-30 parts of auxiliary agent, and the auxiliary agent is ethylene oxide, polyethylene glycol mono stearate, Nonyl pheno
The mixture of ether and sodium carboxymethylcellulose, the ethylene oxide, polyethylene glycol mono stearate, nonylphenol polyoxyethylene ether and
The mass ratio of sodium carboxymethylcellulose is 1:0.5-0.8:0.1-0.3:0.1-0.2.
3. the reinforced photovoltaic cement pipe pile according to claim 2 using regeneration concrete, it is characterised in that: described
Cementitious material is the mixture of cement, calcium sulfate source, SILICA FUME and aluminium oxide, and the cement is ordinary portland cement, low-heat
Any one in portland cement, moderate-heat portland cement or composite Portland cement, the calcium sulfate source are calcium sulfate, stone
Any one in cream, semi-hydrated gypsum or anhydrous gypsum, the cement, calcium sulfate source, SILICA FUME and aluminium oxide mass ratio be
9-12:3-4:1:1。
4. the reinforced photovoltaic cement pipe pile according to claim 3 using regeneration concrete, it is characterised in that: described
Regenerated coarse aggregate is that after construction waste crushing, screening, will obtain the regenerated coarse aggregate of the continuous grading that partial size is 4.8-42mm, institute
Recycled fine aggregate is stated as the thin bone of regeneration for the continuous grading that partial size is 0.05-4.5mm after construction waste crushing, screening, will be obtained
Material.
5. the reinforced photovoltaic cement pipe pile according to any one of claim 1 to 4 using regeneration concrete, special
Sign is:
The preservative is nipabutyl sodium, the bromo- 2- nitro -1,3- propylene glycol of 2-, decoyl hydroximic acid, para hydroxybenzene
One or both of ethyl ketone；
The swelling agent is the mixture of silica, magnesia and entringite, the quality of the silica, magnesia and entringite
Than for 1-2.5:1:1；
The early strength agent is the mixture of inorganic salts early strength agent and organic species early strength agent, the inorganic salts early strength agent and is had
The mass ratio of machine species early strength agent is 1-2:1, and the inorganic salts early strength agent is light calcium powder, sodium nitrate, aluminium chloride, potassium sulfate
One of or it is a variety of compound, organic species early strength agent be calcium acetate, triisopropanolamine, methyl diethanolamine, first
One of alcohol a variety of compounds；
The water-reducing agent is the mixture of lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass, the wood
Mahogany sulfonate, naphthalenesulfonate formaldehyde condensation compound, acrylic acid and waterglass mass ratio be 1:1:0.001-0.01:0.001-
0.05, the lignosulfonates are any one in potassium lignosulfonate, magnesium lignosulfonate or calcium lignosulfonate.
6. the preparation method of the reinforced photovoltaic cement pipe pile using regeneration concrete, which is characterized in that the cement pipe pile
Preparation method the following steps are included:
(1) preparation of regenerated coarse aggregate and recycled fine aggregate；
(2) it is carbonized；
(3) slump and preparation strength are determined, minimum aperture is found out；
(4) regenerated coarse aggregate, recycled fine aggregate and water mix, and obtain mixture；
(5) cementitious material, preservative, swelling agent, early strength agent, water-reducing agent and auxiliary agent are weighed to be added in mixture, mixes, must regenerate
Concrete；
(6) mold, tensioning, centrifugal forming are packed into；
(7) it conserves, demoulding is to get the cement pipe pile for utilizing regeneration concrete.
7. the preparation method of the reinforced photovoltaic cement pipe pile according to claim 6 using regeneration concrete, special
Sign is, the preparation method of the cement pipe pile the following steps are included:
(1) building waste is crushed, sieved, obtain regenerated coarse aggregate and recycled fine aggregate；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are subjected to carbonization treatment；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum aperture is found out according to aggregate maximum unit quality；
(4) the resulting regenerated coarse aggregate of step (2), recycled fine aggregate and water are weighed to be added in blender, is uniformly mixed, must mix
Material；
(5) cementitious material, preservative, swelling agent, early strength agent, water-reducing agent and auxiliary agent are weighed, step (4) resulting mixture is added
In, stirring makes the slump of concrete reach predicted value, obtains regeneration concrete；
(6) the resulting regeneration concrete of step (5) is packed into mold, tensioning, centrifugal forming；
(7) the molding tubular pole of step (6) is conserved, demoulding is to get the cement pipe pile for utilizing regeneration concrete.
8. the preparation method of the reinforced photovoltaic cement pipe pile according to claim 7 using regeneration concrete, special
Sign is, the preparation method of the cement pipe pile the following steps are included:
(1) after being crushed, being sieved by building waste, the regenerated coarse aggregate and grain for the continuous grading that partial size is 4.8-42mm are obtained
Diameter is the recycled fine aggregate of the continuous grading of 0.05-4.5mm；
(2) the obtained regenerated coarse aggregate of step (1) and recycled fine aggregate are put into closed container and carry out carbonization treatment, made again
The carbonation rate of raw coarse aggregate and recycled fine aggregate is greater than 98%, and it is 50- that the relative humidity in closed container is controlled in carbonisation
95%, gas concentration lwevel 40-95%；
(3) slump and preparation strength are determined according to actual demands of engineering, minimum aperture are found out according to aggregate maximum unit quality,
The slump of concrete is 3-8cm, the design strength of concrete and the relationship of preparation strength are as follows: preparation strength=(design strength+
9.6MPa)/0.9；
(4) regenerated coarse aggregate 300-500 parts resulting step (2), 600-800 parts of recycled fine aggregate and 100-300 parts of water are weighed
It is added in blender, is uniformly mixed, obtains mixture；
(5) 500-700 parts of cementitious material, 5-15 parts of preservative, 5-20 parts of swelling agent, 3-10 parts of early strength agent, water-reducing agent 10- are weighed
20 parts, in the auxiliary agent 10-30 parts of resulting mixture of addition step (4), are stirred 30-50min, reach the slump of concrete
Predicted value obtains regeneration concrete；
(6) step (5) resulting regeneration concrete is fitted into the mold for being equipped with reinforcement cage skeleton by charge car, cloth is complete
At rear carry out prestressed stretch-draw, the strip pile die after tensioning is then put into a centrifuge into carry out centrifugal forming；
(7) the molding pipe pile die of step (6) is put into curing pool and is conserved, demoulding is after maintenance to get mixed using regeneration
Coagulate the cement pipe pile of soil.
9. the preparation method of the reinforced photovoltaic cement pipe pile according to claim 8 using regeneration concrete, special
Sign is, the centrifugal process in the step (6) are as follows: the strip pile die is successively in the case where revolving speed is the low speed of 60-90r/min
It is centrifuged 2-5min, is centrifuged 5-8min, static 3-5min in the case where revolving speed is the low-medium speed of 150-300r/min, is 400- in revolving speed
5-10min is centrifuged under the high speed of 500r/min.
10. the preparation method of the reinforced photovoltaic cement pipe pile using regeneration concrete according to claim 8 or claim 9,
It is characterized in that, the maintenance processes in the step (7) are as follows: the molding pipe pile die is put into curing pool, is 50-80 in temperature
DEG C, conserve 3-5h under normal pressure, then 150-180 DEG C is warming up to the speed of 10-20 DEG C/min, in the case where pressure is 0.8-1.2MPa
5-10h is conserved, later cooled to room temperature.
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