CN110194618A - A kind of construction refuse regenerated concrete and preparation method thereof - Google Patents
A kind of construction refuse regenerated concrete and preparation method thereof Download PDFInfo
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- CN110194618A CN110194618A CN201910520302.4A CN201910520302A CN110194618A CN 110194618 A CN110194618 A CN 110194618A CN 201910520302 A CN201910520302 A CN 201910520302A CN 110194618 A CN110194618 A CN 110194618A
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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
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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
- C04B2111/00017—Aspects relating to the protection of the environment
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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]
Abstract
A kind of construction refuse regenerated concrete is related to technical field of concrete, and the component of the concrete and the parts by weight of each component are cement 30-50 parts, 20-35 parts of water, 40-120 parts of recycled aggregate, 5-9 parts of water-reducing agent, 10-20 parts of hardening agent, 1-5 parts of desulfurized gypsum, 7-10 parts of waste and old fibre, 10-15 parts of plant ash, 10-50 parts of flyash, 7-14 parts of admixture, 5-8 parts of steel slag, 1-5 parts of cyclization.The intensity of regeneration concrete in the present invention is high, it can satisfy requirement of the existing building to concrete strength, the supporting member that can be used as in building uses, compared with normal concrete, the concrete in the present invention has light weight, the excellent function that intensity height, cracking resistance, cold-resistant heat resistanceheat resistant, thermal insulation property is good, is not easy burn into long service life etc..
Description
Technical field:
The present invention relates to technical field of concrete, and in particular to a kind of construction refuse regenerated concrete and preparation method thereof.
Background technique:
Regeneration concrete refers to discarded concrete block after broken, cleaning, classification, is compounded by a certain percentage with grade
It closes, partly or entirely replaces the natural aggregates (mainly coarse aggregate) such as sandstone, add new coagulation made of cement, water etc. are matched
Soil.Compared with normal concrete, regeneration concrete has the characteristics that from heavy and light, cracking resistance is good and good effect of heat insulation,
Currently, being mainly used to configure low-intensity regeneration concrete from the recycled aggregate that discarded concrete recycles, it is non-to be applied to civil engineering
In supporting member, the intensity of existing regeneration concrete is lower, is unable to satisfy the requirement of high load-bearing, which seriously limits mixed
The application range for coagulating soil, makes it that can not replace normal concrete always, with the development of process of industrialization, the consumption of natural aggregate
Still very big, the serious waste of natural resources is caused, therefore need to research and develop a kind of regeneration concrete that intensity is high.
Summary of the invention:
In place of overcoming above-mentioned the shortcomings of the prior art, and provide a kind of building waste again
Growing concrete and preparation method thereof.
The technical solution adopted by the present invention are as follows: a kind of construction refuse regenerated concrete, the component of the concrete and each
The parts by weight of component be cement 30-50 parts, 20-35 parts of water, 40-120 parts of recycled aggregate, 5-9 parts of water-reducing agent, hardening agent 10-
20 parts, 1-5 parts of desulfurized gypsum, 7-10 parts of waste and old fibre, 10-15 parts of plant ash, 10-50 parts of flyash, 7-14 parts of admixture, steel
5-8 parts of slag, 1-5 parts of cyclization.
Preferably, the parts by weight of the component of the concrete and each component be 40-45 parts of cement, 25-30 parts of water, then
60-80 parts of raw aggregate, 6-7 parts of water-reducing agent, 12-17 parts of hardening agent, 2-3 parts of desulfurized gypsum, 8-9 parts of waste and old fibre, plant ash 12-
14 parts, 20-40 parts of flyash, 8-12 parts of admixture, 6-7 parts of steel slag, 2-4 parts of cyclization.
Preferably, the parts by weight of the component of the admixture and each component are as follows: 5-7 parts of SILICA FUME, magnesia 9-10
Part, 3-6 parts of tartaric acid, 10-17 parts of ferric trichloride, 20-30 parts of calcium chloride, 7-10 parts of surfactant, 3-5 parts of sodium citrate,
12-17 parts of silicon nitride.
Preferably, 1-5 parts of reinforcing agent is contained in the concrete.
Preferably, the parts by weight of the component of the reinforcing agent and each component are as follows: 1-5 parts of saccharomycete, bacillus subtilis
2-4 parts of bacterium, 5-9 parts of streptomyces microflavus, 2-5 parts of alkali cellulose enzyme, 7-9 parts of basophilic bacterium, 10-15 parts of carbon black, boron sludge 20-30
Part, 10-17 parts of glass fibre.
Preferably, the parts by weight of the component of the hardening agent and each component are as follows: 2-4 parts of sodium thiosulfate, three isopropyls
2-7 parts of hydramine, 15-20 parts of sodium bicarbonate, 12-13 parts of sodium sulfite, 3-7 parts of ammonium chloride, 2-9 parts of sodium hydroxyethlcellulose, gather
5-7 parts of acrylamide, 10-19 parts of polyacrylate dispersion, 3-5 parts of cellulose ether, 10-15 parts of sucrose.
Preferably, 10-13 parts of swelling agent is contained in the concrete.
Preferably, the parts by weight of the component of the swelling agent and each component are as follows: 1-3 parts of anhydrous slufuric acid aluminium, glycerol 5-
10 parts, 2-6 parts of hydroxymethyl cellulose ether, 1-4 parts of polysiloxanes, 10-13 parts of acrylic acid, 3-5 parts of calcium sulphoaluminate, propolis 12-17
Part, 3-8 parts of calcium nitrite, 1-3 parts of calcium sulfate.
Preferably, the parts by weight of the component of the water-reducing agent and each component are as follows: 7-10 parts of sodium alginate, D-Glucose
Sour sodium 1-3 parts, 1-5 parts of polycarboxylate dehydragent, 3-8 parts of ethylene oxide polymer, 2-4 parts of asbestos, 3-6 parts of ardealite.
A kind of preparation method of construction refuse regenerated concrete, the preparation method the following steps are included:
Step A: waste and old concrete is carried out broken recycled aggregate to be made using recycle device；
Step B: recycled aggregate, water and hardening agent being added in blender and are stirred, and stir 50-80min；
Step C: by cement, water-reducing agent, desulfurized gypsum, waste and old fibre, plant ash, flyash, admixture, steel slag and poly- third
The fine fiber of alkene, which is added in blender, is stirred mixing, stirs 30-50min；
Step D: reinforcing agent is added in the mixture into step C, is stirred 50-80min；
Step E: swelling agent is added in the mixture into step D and is stirred 10-20min, regeneration concrete is made.
The invention has the benefit that the intensity of the regeneration concrete in the present invention is high, existing building can satisfy to mixed
The requirement of solidifying soil intensity, the supporting member that can be used as in building use, the concrete compared with normal concrete, in the present invention
With light weight, the excellent function that intensity height, cracking resistance, cold-resistant heat resistanceheat resistant, thermal insulation property is good, is not easy burn into long service life etc.,
In addition, the concrete is free of toxic component, no pollution to the environment can satisfy environmentally protective requirement.
Specific embodiment:
Invention is further explained in conjunction with specific embodiments:
Embodiment one:
A kind of construction refuse regenerated concrete, the component of the concrete and the parts by weight of each component are cement 30
Part, 20 parts of water, 40 parts of recycled aggregate, 9 parts of water-reducing agent, 10 parts of hardening agent, 1 part of desulfurized gypsum, 7 parts of waste and old fibre, plant ash 15
Part, 10 parts of flyash, 7 parts of admixture, 5 parts of steel slag, 1 part of cyclization.The ingredient of the concrete selects recycled aggregate, gives up
The waste materials such as old fiber, plant ash, flyash, steel slag realize that the secondary cycle of waste material uses, improve the utilization rate of resource and subtract
Lack the consumption to natural material, ingredient used in the concrete is non-toxic components, on body and environment without influence, is met
Environmentally protective demand.
The component of the admixture and the parts by weight of each component are as follows: 5 parts of SILICA FUME, 10 parts of magnesia, tartaric acid 3
Part, 10 parts of ferric trichloride, 30 parts of calcium chloride, 7 parts of surfactant, 3 parts of sodium citrate, 12 parts of silicon nitride.It is micro- in admixture
The ingredients such as silicon powder, calcium chloride, silicon nitride can fill in the gap between recycled aggregate, reduce the porosity of recycled aggregate, micro-
Silicon powder, which enters in recycled aggregate to react with magnesia, generates gelinite, and with calcium carbonate, the silicon nitride etc. that enter in recycled aggregate
Matter interaction realizes the intensity for improving recycled aggregate and improves remaining ingredient interaction in recycled aggregate and concrete
Compatibility, in addition, SILICA FUME also can filling concrete void among particles, SILICA FUME can also send out with the calcium hydroxide in concrete
Raw secondary reaction of hydration, forms jel product.Admixture, which is added in concrete, can be improved the fluidity of the concrete of preparation, resists
The performances such as pressure, bend resistance, impermeabilisation, anticorrosive, durability and cohesiveness.
The component of the hardening agent and the parts by weight of each component are as follows: 2 parts of sodium thiosulfate, 2 parts of triisopropanolamine, carbon
20 parts of sour hydrogen sodium, 13 parts of sodium sulfite, 7 parts of ammonium chloride, 2 parts of sodium hydroxyethlcellulose, 5 parts of polyacrylamide, polyacrylate
10 parts of lotion, 3 parts of cellulose ether, 10 parts of sucrose.Hardening agent in the present invention, which is added in concrete, can generate carbon dioxide, generate
Carbon dioxide react with ingredients such as calcium chloride, calcium hydroxides, generate calcium carbonate, substances, calcium carbonate and the carbon such as magnesium carbonate
Sour magnesium is attached on recycled aggregate, improves the intensity of recycled aggregate and the intensity of the concrete by recycled aggregate preparation.
The component of the water-reducing agent and the parts by weight of each component are as follows: 7 parts of sodium alginate, 3 parts of maltonic acid sodium, gather
1 part of carboxylate water-reducing agent, 3 parts of ethylene oxide polymer, 2 parts of asbestos, 3 parts of ardealite.Water-reducing agent in the present invention can reduce
The dosage of water and improve preparation concrete mobility and cohesiveness.
Embodiment two:
A kind of construction refuse regenerated concrete, the component of the concrete and the parts by weight of each component are cement 50
Part, 35 parts of water, 120 parts of recycled aggregate, 5 parts of water-reducing agent, 20 parts of hardening agent, 5 parts of desulfurized gypsum, 10 parts of waste and old fibre, plant ash
10 parts, 50 parts of flyash, 14 parts of admixture, 8 parts of steel slag, 5 parts of cyclization.
The component of the admixture and the parts by weight of each component are as follows: 7 parts of SILICA FUME, 9 parts of magnesia, 6 parts of tartaric acid,
17 parts of ferric trichloride, 20 parts of calcium chloride, 10 parts of surfactant, 5 parts of sodium citrate, 17 parts of silicon nitride.
Contain 1 part of reinforcing agent in the concrete.
The component of the reinforcing agent and the parts by weight of each component are as follows: 1 part of saccharomycete, 2 parts of bacillus subtilis, thin yellow
5 parts of streptomycete, 2 parts of alkali cellulose enzyme, 7 parts of basophilic bacterium, 10 parts of carbon black, 30 parts of boron sludge, 17 parts of glass fibre.Reinforcing agent with
Hardening agent interaction generates carbon dioxide, the titanium dioxide of generation by organic components such as the bacterial strains decomposing sucroses such as saccharomycete
Carbon is reacted with ingredient in concrete, further increases the intensity of the regeneration concrete of preparation.The addition of alkali cellulose enzyme can be with
The viscosity of regeneration concrete is adjusted, the fluidity of regeneration concrete is further adjusted.In addition, the addition of reinforcing agent can make to regenerate
Concrete coagulation, makes concrete keep fluidity and homogeneity during transportation and construction, is readily transported and constructs.
The component of the hardening agent and the parts by weight of each component are as follows: 4 parts of sodium thiosulfate, 7 parts of triisopropanolamine, carbon
15 parts of sour hydrogen sodium, 12 parts of sodium sulfite, 3 parts of ammonium chloride, 9 parts of sodium hydroxyethlcellulose, 7 parts of polyacrylamide, polyacrylate
19 parts of lotion, 5 parts of cellulose ether, 15 parts of sucrose.
The component of the water-reducing agent and the parts by weight of each component are as follows: 10 parts of sodium alginate, 1 part of maltonic acid sodium,
5 parts of polycarboxylate dehydragent, 8 parts of ethylene oxide polymer, 4 parts of asbestos, 6 parts of ardealite.
Embodiment three:
A kind of construction refuse regenerated concrete, the component of the concrete and the parts by weight of each component are cement 40
Part, 30 parts of water, 60 parts of recycled aggregate, 7 parts of water-reducing agent, 15 parts of hardening agent, 4 parts of desulfurized gypsum, 9 parts of waste and old fibre, plant ash 12
Part, 30 parts of flyash, 12 parts of admixture, 7 parts of steel slag, 3 parts of cyclization.
The component of the admixture and the parts by weight of each component are as follows: 8 parts of SILICA FUME, 9.5 parts of magnesia, tartaric acid 4
Part, 13 parts of ferric trichloride, 25 parts of calcium chloride, 8 parts of surfactant, 4 parts of sodium citrate, 13 parts of silicon nitride.
The component of the hardening agent and the parts by weight of each component are as follows: 3 parts of sodium thiosulfate, 4 parts of triisopropanolamine, carbon
18 parts of sour hydrogen sodium, 12 parts of sodium sulfite, 4 parts of ammonium chloride, 6 parts of sodium hydroxyethlcellulose, 6 parts of polyacrylamide, polyacrylate
12 parts of lotion, 4 parts of cellulose ether, 13 parts of sucrose.
Contain 12 parts of swelling agent in the concrete.
The component of the swelling agent and the parts by weight of each component are as follows: 2 parts of anhydrous slufuric acid aluminium, 8 parts of glycerol, methylol is fine
Plain 5 parts of the ether of dimension, 3 parts of polysiloxanes, 12 parts of acrylic acid, 4 parts of calcium sulphoaluminate, 15 parts of propolis, 5 parts of calcium nitrite, 2 parts of calcium sulfate.
The swelling agent is in addition to preventing the regeneration concrete cracking of preparation outer, moreover it is possible to make again with the contraction in compensating material hardening process
Growing concrete has anticorrosion and other effects, improves the durability of regeneration concrete.
The component of the water-reducing agent and the parts by weight of each component are as follows: 8 parts of sodium alginate, 2 parts of maltonic acid sodium, gather
3 parts of carboxylate water-reducing agent, 5 parts of ethylene oxide polymer, 3 parts of asbestos, 4 parts of ardealite.
Example IV:
A kind of construction refuse regenerated concrete, the component of the concrete and the parts by weight of each component are cement 40
Part, 25 parts of water, 70 parts of recycled aggregate, 6 parts of water-reducing agent, 12 parts of hardening agent, 3 parts of desulfurized gypsum, 9 parts of waste and old fibre, plant ash 14
Part, 35 parts of flyash, 12 parts of admixture, 7 parts of steel slag, 3 parts of cyclization.
The component of the admixture and the parts by weight of each component are as follows: 6 parts of SILICA FUME, 10 parts of magnesia, tartaric acid 4
Part, 15 parts of ferric trichloride, 26 parts of calcium chloride, 9 parts of surfactant, 4 parts of sodium citrate, 14 parts of silicon nitride.
Contain 5 parts of reinforcing agent in the concrete.
The component of the reinforcing agent and the parts by weight of each component are as follows: 5 parts of saccharomycete, 4 parts of bacillus subtilis, thin yellow
9 parts of streptomycete, 5 parts of alkali cellulose enzyme, 9 parts of basophilic bacterium, 15 parts of carbon black, 20 parts of boron sludge, 10 parts of glass fibre.
The component of the hardening agent and the parts by weight of each component are as follows: 3 parts of sodium thiosulfate, 5 parts of triisopropanolamine, carbon
19 parts of sour hydrogen sodium, 13 parts of sodium sulfite, 6 parts of ammonium chloride, 7 parts of sodium hydroxyethlcellulose, 6 parts of polyacrylamide, polyacrylate
17 parts of lotion, 4 parts of cellulose ether, 14 parts of sucrose.
Contain 10 parts of swelling agent in the concrete.
The component of the swelling agent and the parts by weight of each component are as follows: 1 part of anhydrous slufuric acid aluminium, 5 parts of glycerol, methylol is fine
Plain 2 parts of the ether of dimension, 1 part of polysiloxanes, 10 parts of acrylic acid, 3 parts of calcium sulphoaluminate, 12 parts of propolis, 3 parts of calcium nitrite, 1 part of calcium sulfate.
The component of the water-reducing agent and the parts by weight of each component are as follows: 9 parts of sodium alginate, 2 parts of maltonic acid sodium, gather
4 parts of carboxylate water-reducing agent, 7 parts of ethylene oxide polymer, 3 parts of asbestos, 5 parts of ardealite.
Embodiment five:
A kind of construction refuse regenerated concrete, the component of the concrete and the parts by weight of each component are cement 34
Part, 27 parts of water, 50 parts of recycled aggregate, 6 parts of water-reducing agent, 13 parts of hardening agent, 2 parts of desulfurized gypsum, 8 parts of waste and old fibre, plant ash 12
Part, 15 parts of flyash, 9 parts of admixture, 6 parts of steel slag, 2 parts of cyclization.
The component of the admixture and the parts by weight of each component are as follows: 6 parts of SILICA FUME, 9 parts of magnesia, 4 parts of tartaric acid,
12 parts of ferric trichloride, 22 parts of calcium chloride, 8 parts of surfactant, 4 parts of sodium citrate, 13 parts of silicon nitride.
Contain 3 parts of reinforcing agent in the concrete.
The component of the reinforcing agent and the parts by weight of each component are as follows: 3 parts of saccharomycete, 3 parts of bacillus subtilis, thin yellow
6 parts of streptomycete, 3 parts of alkali cellulose enzyme, 8 parts of basophilic bacterium, 12 parts of carbon black, 25 parts of boron sludge, 13 parts of glass fibre.
The component of the hardening agent and the parts by weight of each component are as follows: 4 parts of sodium thiosulfate, 2 parts of triisopropanolamine, carbon
16 parts of sour hydrogen sodium, 12 parts of sodium sulfite, 4 parts of ammonium chloride, 4 parts of sodium hydroxyethlcellulose, 6 parts of polyacrylamide, polyacrylate
12 parts of lotion, 4 parts of cellulose ether, 12 parts of sucrose.
Contain 13 parts of swelling agent in the concrete.
The component of the swelling agent and the parts by weight of each component are as follows: 3 parts of anhydrous slufuric acid aluminium, 10 parts of glycerol, methylol
6 parts of cellulose ether, 4 parts of polysiloxanes, 13 parts of acrylic acid, 5 parts of calcium sulphoaluminate, 17 parts of propolis, 8 parts of calcium nitrite, calcium sulfate 3
Part.
The component of the water-reducing agent and the parts by weight of each component are as follows: 10 parts of sodium alginate, 3 parts of maltonic acid sodium,
5 parts of polycarboxylate dehydragent, 5 parts of ethylene oxide polymer, 3 parts of asbestos, 4 parts of ardealite.
The concrete of embodiment one to embodiment five is all made of to be prepared following preparation method:
A kind of preparation method of construction refuse regenerated concrete, the preparation method the following steps are included:
Step A: waste and old concrete is carried out broken recycled aggregate to be made using recycle device；Recycle device is
The prior art can be crushed using commercially available equipment, and broken recycled aggregate crosses 300-400 mesh.
Step B: recycled aggregate, water and hardening agent being added in blender and are stirred, and stir 50-80min；Preferably
Mixing time is 80min, and the sodium bicarbonate in hardening agent is dissolved in water and reacts generation carbon dioxide with sodium sulfite or ammonium chloride, raw
At carbon dioxide react with recycled aggregate and to generate the solids such as calcium carbonate and silica, to be carried out at carbonization to recycled aggregate
Reason, the solid-fillings such as calcium carbonate and silica of generation can reduce the hole of recycled aggregate in the gap into recycled aggregate
Rate improves the intensity of recycled aggregate, increases the volume of recycled aggregate, to reduce the dosage of recycled aggregate.The calcium carbonate of generation
Be attached to the compression strength and load bearing stength of the entire recycled aggregate of recycled aggregate surface enhanced with silica, improve recycled aggregate with
The compatibility of other substances in concrete.
Step C: by cement, water-reducing agent, desulfurized gypsum, waste and old fibre, plant ash, flyash, admixture, steel slag and poly- third
The fine fiber of alkene, which is added in blender, is stirred mixing, stirs 30-50min；Preferred mixing time is 40min, in stirring
In the process, the ingredients such as cement, water-reducing agent, desulfurized gypsum are mutually mixed with the ingredient in recycled aggregate and reinforcing agent and react work
With the fluidity, cohesiveness and water-retaining property of concrete can be improved in the addition of admixture and water-reducing agent, to make mixed pure land hardening
There is enough intensity and durability afterwards.
Step D: reinforcing agent is added in the mixture into step C, is stirred 50-80min；Preferably, it is stirred
Time is 60min, reinforcing agent is added in mixture stir after can generate carbon dioxide, in the carbon dioxide and concrete of generation at
Divide further reaction to generate the substances such as calcium carbonate and magnesium carbonate, further improves the intensity and humidity resistance of concrete.
Step E: being added swelling agent and be stirred 10-20min, regeneration concrete is made in the mixture into step D, excellent
Choosing, being stirred the time is 20min.
Stirring rate in above-mentioned each step is 1500-2000rpm/min, and preferred mixing speed is 1500rpm/
min。
Using effect experiment:
(1) concrete bearing intension testing:
Compressive Strength of Recycled Concrete value can embody the intensity of regeneration concrete, during the test to concrete test block
Preparation process take stringent quality control method, to ensure accuracy and the precision of test data, this test method
Concrete test block is made using artificial ramming, the size of concrete test block is 150mm × 150mm × 150mm, using in embodiment one
Concrete preparation test block as testing one group of test block, the test block for using the concrete in embodiment two to prepare is as testing
Two groups of test block, the test block for using the concrete in embodiment three to prepare is as the test block for testing three groups, using in example IV
Concrete preparation test block as testing four groups of test block, the test block for using the concrete in embodiment five to prepare is as testing
Five groups of test block prepares normal concrete test block as a control group, is put the oil in mould inner surface to facilitate the quality of later period demoulding,
Pouring molding again after putting the oil.It after test block pouring molding, is stood in 15-25 DEG C of environment for 24 hours, concrete test block molding to be regenerated
It is identified later and demoulding is handled, be finally putting into the environment that relative humidity is 95% and aoxidized, curing time is 28 days.
The concrete test block conserved is taken out, regeneration concrete test block is tried on 3000kN electro-hydraulic servo universal testing machine
It tests, compressive strength test is carried out according to the strength test method of normal concrete.Specific test data see the table below:
As can be seen from the above table, regeneration concrete test block pressure resistance intensity of the embodiment one into embodiment five is substantially better than
The compression strength of normal concrete.
(2) Satisfaction
This research is investigated by effect of 100 enterprises to a kind of preparation method of construction refuse regenerated concrete,
Test item standards of grading are as follows: very satisfied 5 points, be satisfied with 4 points, general 3 points, be unsatisfied with 2 points, very dissatisfied 1 point.It is wherein general
Logical group is the preparation method of common concrete.
| Test item | Embodiment one | Embodiment two | Embodiment three | Example IV | Embodiment five | Common group |
| Safety | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 3.5 |
| Environmental-protecting performance | 4.8 | 4.9 | 5.0 | 4.9 | 4.9 | 2.8 |
| Operability | 4.7 | 4.9 | 4.8 | 4.8 | 4.7 | 3.0 |
| Cost | 4.7 | 4.9 | 4.6 | 4.8 | 4.7 | 3.2 |
In conclusion the intensity of the regeneration concrete in the present invention is high, existing building can satisfy to concrete strength
It is required that the supporting member that can be used as in building uses, compared with normal concrete, the concrete in the present invention has quality
Gently, intensity height, the excellent function that cracking resistance, cold-resistant heat resistanceheat resistant, thermal insulation property is good, is not easy burn into long service life etc., in addition, should
Concrete is free of toxic component, and no pollution to the environment can satisfy environmentally protective requirement.The preparation method is easy to operate, right
Equipment no requirement (NR) is suitable for high-volume and promotes and applies, the concrete prepared using the preparation method high, cracking resistance etc. with intensity
Function.
For those skilled in the art, it is various corresponding that other can be made according to above technical scheme and design
Change and deformation, and all these change and modification all should belong within the scope of protection of the claims of the present invention.
Claims (10)
1. a kind of construction refuse regenerated concrete, it is characterised in that: the component of the concrete and the parts by weight of each component
It is 30-50 parts of cement, 20-35 parts of water, 40-120 parts of recycled aggregate, 5-9 parts of water-reducing agent, 10-20 parts of hardening agent, desulfurized gypsum 1-
5 parts, 7-10 parts of waste and old fibre, 10-15 parts of plant ash, 10-50 parts of flyash, 7-14 parts of admixture, 5-8 parts of steel slag, polypropylene
Fine fiber 1-5 parts.
2. construction refuse regenerated concrete according to claim 1, it is characterised in that: the component of the concrete and each
The parts by weight of component be cement 40-45 parts, 25-30 parts of water, 60-80 parts of recycled aggregate, 6-7 parts of water-reducing agent, hardening agent 12-17
Part, 2-3 parts of desulfurized gypsum, 8-9 parts of waste and old fibre, 12-14 parts of plant ash, 20-40 parts of flyash, 8-12 parts of admixture, steel slag
6-7 parts, 2-4 parts of cyclization.
3. construction refuse regenerated concrete according to claim 1, it is characterised in that: the component of the admixture and each
The parts by weight of component are as follows: 5-7 parts of SILICA FUME, 9-10 parts of magnesia, 3-6 parts of tartaric acid, 10-17 parts of ferric trichloride, calcium chloride
20-30 parts, 7-10 parts of surfactant, 3-5 parts of sodium citrate, 12-17 parts of silicon nitride.
4. construction refuse regenerated concrete according to claim 1, it is characterised in that: contain 1-5 in the concrete
The reinforcing agent of part.
5. construction refuse regenerated concrete according to claim 4, it is characterised in that: the component of the reinforcing agent and each
The parts by weight of component are as follows: 1-5 parts of saccharomycete, 2-4 parts of bacillus subtilis, 5-9 parts of streptomyces microflavus, alkali cellulose enzyme 2-
5 parts, 7-9 parts of basophilic bacterium, 10-15 parts of carbon black, 20-30 parts of boron sludge, 10-17 parts of glass fibre.
6. construction refuse regenerated concrete according to claim 1, it is characterised in that: the component of the hardening agent and each
The parts by weight of component are as follows: 2-4 parts of sodium thiosulfate, 2-7 parts of triisopropanolamine, 15-20 parts of sodium bicarbonate, sodium sulfite 12-
It is 13 parts, 3-7 parts of ammonium chloride, 2-9 parts of sodium hydroxyethlcellulose, 5-7 parts of polyacrylamide, 10-19 parts of polyacrylate dispersion, fine
Plain 3-5 parts of the ether of dimension, 10-15 parts of sucrose.
7. construction refuse regenerated concrete according to claim 1, it is characterised in that: contain 10- in the concrete
13 parts of swelling agent.
8. construction refuse regenerated concrete according to claim 1, it is characterised in that: the component of the swelling agent and each
The parts by weight of component are as follows: 1-3 parts of anhydrous slufuric acid aluminium, 5-10 parts of glycerol, 2-6 parts of hydroxymethyl cellulose ether, polysiloxanes 1-4
Part, 10-13 parts of acrylic acid, 3-5 parts of calcium sulphoaluminate, 12-17 parts of propolis, 3-8 parts of calcium nitrite, 1-3 parts of calcium sulfate.
9. construction refuse regenerated concrete according to claim 1, it is characterised in that: the component of the water-reducing agent and each
The parts by weight of component are as follows: 7-10 parts of sodium alginate, 1-3 parts of maltonic acid sodium, 1-5 parts of polycarboxylate dehydragent, epoxy second
3-8 parts of alkane polymer, 2-4 parts of asbestos, 3-6 parts of ardealite.
10. a kind of preparation method of construction refuse regenerated concrete, it is characterised in that: the preparation method the following steps are included:
Step A: waste and old concrete is carried out broken recycled aggregate to be made using recycle device；
Step B: recycled aggregate, water and hardening agent being added in blender and are stirred, and stir 50-80min；
Step C: cement, water-reducing agent, desulfurized gypsum, waste and old fibre, plant ash, flyash, admixture, steel slag and polypropylene is fine
Fiber, which is added in blender, is stirred mixing, stirs 30-50min；
Step D: reinforcing agent is added in the mixture into step C, is stirred 50-80min；
Step E: swelling agent is added in the mixture into step D and is stirred 10-20min, regeneration concrete is made.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358247A (en) * | 2020-11-24 | 2021-02-12 | 广州市建筑集团混凝土有限公司 | High-strength concrete slurry wrapping process |
| CN112759308A (en) * | 2021-01-05 | 2021-05-07 | 桐乡市鑫联混凝土有限公司 | Cold-resistant concrete and preparation method thereof |
| CN113912314A (en) * | 2021-10-14 | 2022-01-11 | 福建省兴岩建设集团有限公司 | Preparation method of high-quality recycled aggregate |
| CN114835419A (en) * | 2022-03-31 | 2022-08-02 | 中建安装集团有限公司 | Method for improving concrete aggregate performance |
| CN114873946A (en) * | 2022-07-07 | 2022-08-09 | 北京新桥技术发展有限公司 | Regenerated coarse aggregate modifier, raw material composition, preparation method and application thereof |
| WO2023118661A1 (en) * | 2021-12-22 | 2023-06-29 | Teknologian Tutkimuskeskus Vtt Oy | A cementitious composition, a composite material, and a method of manufacturing the composite material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003321261A (en) * | 2002-05-08 | 2003-11-11 | Fra Techno Kk | Recycled frp aggregate and cement-based hardened body using the aggregate |
| CN101880147A (en) * | 2010-05-01 | 2010-11-10 | 马鞍山市黄河水处理工程有限公司 | Steel slag eco-concrete, steel slag eco-concrete product and preparation method thereof |
| CN107200526A (en) * | 2016-09-08 | 2017-09-26 | 江苏科技大学 | C40 grades are mixed slag regeneration aggregate self-compacting concrete and preparation method thereof |
| CN107298560A (en) * | 2017-06-25 | 2017-10-27 | 长沙善道新材料科技有限公司 | A kind of anti-permeation cracking-resistant concrete |
| CN108290789A (en) * | 2016-01-07 | 2018-07-17 | 安兹耶因大学 | The composition and its manufacturing method based on cement with the improved rheological equationm of state |
| CN108585660A (en) * | 2018-05-28 | 2018-09-28 | 石家庄金隅旭成混凝土有限公司 | A kind of formula of polypropylene fiber concrete and preparation method thereof |
| CN108689625A (en) * | 2018-06-19 | 2018-10-23 | 王然 | Concrete admixture and preparation method thereof and concrete |
-
2019
- 2019-06-17 CN CN201910520302.4A patent/CN110194618B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003321261A (en) * | 2002-05-08 | 2003-11-11 | Fra Techno Kk | Recycled frp aggregate and cement-based hardened body using the aggregate |
| CN101880147A (en) * | 2010-05-01 | 2010-11-10 | 马鞍山市黄河水处理工程有限公司 | Steel slag eco-concrete, steel slag eco-concrete product and preparation method thereof |
| CN108290789A (en) * | 2016-01-07 | 2018-07-17 | 安兹耶因大学 | The composition and its manufacturing method based on cement with the improved rheological equationm of state |
| CN107200526A (en) * | 2016-09-08 | 2017-09-26 | 江苏科技大学 | C40 grades are mixed slag regeneration aggregate self-compacting concrete and preparation method thereof |
| CN107298560A (en) * | 2017-06-25 | 2017-10-27 | 长沙善道新材料科技有限公司 | A kind of anti-permeation cracking-resistant concrete |
| CN108585660A (en) * | 2018-05-28 | 2018-09-28 | 石家庄金隅旭成混凝土有限公司 | A kind of formula of polypropylene fiber concrete and preparation method thereof |
| CN108689625A (en) * | 2018-06-19 | 2018-10-23 | 王然 | Concrete admixture and preparation method thereof and concrete |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358247A (en) * | 2020-11-24 | 2021-02-12 | 广州市建筑集团混凝土有限公司 | High-strength concrete slurry wrapping process |
| CN112759308A (en) * | 2021-01-05 | 2021-05-07 | 桐乡市鑫联混凝土有限公司 | Cold-resistant concrete and preparation method thereof |
| CN113912314A (en) * | 2021-10-14 | 2022-01-11 | 福建省兴岩建设集团有限公司 | Preparation method of high-quality recycled aggregate |
| WO2023118661A1 (en) * | 2021-12-22 | 2023-06-29 | Teknologian Tutkimuskeskus Vtt Oy | A cementitious composition, a composite material, and a method of manufacturing the composite material |
| CN114835419A (en) * | 2022-03-31 | 2022-08-02 | 中建安装集团有限公司 | Method for improving concrete aggregate performance |
| CN114873946A (en) * | 2022-07-07 | 2022-08-09 | 北京新桥技术发展有限公司 | Regenerated coarse aggregate modifier, raw material composition, preparation method and application thereof |
| CN114873946B (en) * | 2022-07-07 | 2022-09-23 | 北京新桥技术发展有限公司 | Regenerated coarse aggregate modifier, raw material composition, preparation method and application thereof |
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