CN108975815A - A kind of regeneration concrete manufacture craft - Google Patents
A kind of regeneration concrete manufacture craft Download PDFInfo
- Publication number
- CN108975815A CN108975815A CN201810917966.XA CN201810917966A CN108975815A CN 108975815 A CN108975815 A CN 108975815A CN 201810917966 A CN201810917966 A CN 201810917966A CN 108975815 A CN108975815 A CN 108975815A
- Authority
- CN
- China
- Prior art keywords
- aggregate
- recycled
- regeneration concrete
- parts
- manufacture craft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of regeneration concrete manufacture crafts, and first waste and old concrete is broken, primary screening, cleaning, obtain regenerated coarse aggregate and recycled fine aggregate；Regenerated coarse aggregate and recycled fine aggregate are heated to 300-400 DEG C, are crushed again, and carries out regrading after broken and obtains purification coarse aggregate and recycled fine aggregate；Purification coarse aggregate and recycled fine aggregate are placed in closed container and are carbonized, it is 30-75% that control relative humidity, which is 40-85%, CO2 concentration, until recycled aggregate weight≤5% not carbonized；S4 prepares regeneration concrete, will be stirred by the recycled aggregate of S3 processing with primary aggregate, adhesive backers, filler material, additive, finished product.Pass through above-mentioned setting, the processing multi-level for waste and old concrete, obtain more qualified recycled aggregate, and mechanical property also greatly improves, has the effect of sustained release carbon dioxide after charing simultaneously, the drying shrinkage in later period can be slowed down and crept, the stress and impervious and service life of regeneration concrete are improved.
Description
Technical field
The present invention relates to construction material production technical field, in particular to a kind of regeneration concrete and its production technology.
Background technique
Concrete is the important materials in architectural engineering, and concrete material accounts for 70- in current global construction material
80%, thus it is very considerable for the demand of concrete and the waste and old concrete quantity generated due to replacement every year.Regeneration is mixed
Solidifying soil is the aggregate obtained after waste and old concrete building cooperates by a certain percentage after broken, screening and cleaning,
The concrete for being again mixed to prepare aggregate and other construction materials, can be realized by recycled concrete to waste and old concrete
It reprocessing and recycles, limited resource can not only be enable to recycle and the problem of part environmental protection, therefore, then
Growing concrete is a construction material production technology of very obtained popularization.
It is impervious that a kind of raising regeneration concrete is disclosed in the Chinese patent document that application publication number is CN105254241A
The method of performance replaces cement using flyash and slag powders part first, then limits the content of regeneration concrete, and adds suitable
The additive of amount improves performance, is finally prepared into the concrete of finished product again.
But regeneration concrete has the shortcomings that various aspects compared with primary aggregate due to its own aggregate,
Due to the macrovoid inside regeneration concrete, leading to water absorption rate is more times of Original concrete, so as to cause the drying shrinkage in later period
And the degree crept is also relatively high, therefore generates more crack, not only influences impermeability, also will affect intensity and entirety makes
Use the service life.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of manufacture craft of regeneration concrete,
Have the effect of reducing and later period drying shrinkage and creep, reduce the quantity and development degree in crack, enhancing structure intensity and uses the longevity
Life.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of regeneration concrete production work
Skill includes the following steps:
S1 prepares recycled aggregate, and waste and old concrete is broken, primary screening, cleaning obtain regenerated coarse aggregate and regenerate thin bone
Material；
The regenerated coarse aggregate and recycled fine aggregate that handle by S1 are heated to 300-400 by S2, recycled aggregate pretreatment
DEG C, it is crushed again, and carry out regrading after broken and obtain purification coarse aggregate and recycled fine aggregate；
The purification coarse aggregate and recycled fine aggregate that handle by S1 and S2 are placed in close by S3, recycled aggregate secondary treatment
It closes in container and carbonizes, it is 30-75% that control relative humidity, which is 40-85%, CO2 concentration, until the recycled aggregate weight not carbonized
≤ 5%；
S4 prepares regeneration concrete, by the recycled aggregate and primary aggregate, adhesive backers, filler material, additive by S3 processing
It is stirred, finished product.
By using above-mentioned technical proposal, the processing multi-level for waste and old concrete obtains more qualified Regenerated Bone
Material, and mechanical property also greatly improves, while having the effect of sustained release carbon dioxide, carbon dioxide and concrete after charing
In calcium hydroxide especially in recycled aggregate chemical reaction occur generate calcium carbonate, and the generation of calcium carbonate can become with volume
Big variation, so that concrete is whole more closely knit, can slow down to further improve the pore structure of inside concrete
It the drying shrinkage in later period and creeps, improves the stress and impervious and service life of regeneration concrete.
The further setting of the present invention are as follows: after being crushed in S1 to waste and old concrete, broken concrete block is passed through
Magnetic separation screening, remove containing metal impurities.
By using above-mentioned technical proposal, when broken worn-out concrete, a large amount of metal or iron rust can be mixed, therefore pass through
It can be improved the mechanical property of recycled aggregate after magnetic separation.
The further setting of the present invention are as follows: carry out after once sieving, obtained regenerated coarse aggregate partial size is 5-40mm, regeneration
Fine aggregate partial size is less than 5mm；The purification coarse aggregate size obtained after regrading in S2 is 5-20mm, recycled fine aggregate grain
Diameter is less than 5mm, then carries out sub-sieve three times to recycled fine aggregate, obtains the purification fine aggregate that partial size is 0.15-5mm.
By using above-mentioned technical proposal, multilayer is set and is sieved, recycled aggregate is subdivided into purification coarse aggregate and purification is thin
Aggregate is more in line with gradation requirement when concrete batching, while also further removing impurity in screening process, improves again
The degree of purity of raw aggregate.
The further setting of the present invention are as follows: in S3 after the completion of recycled aggregate secondary treatment charing, partial regeneration aggregate is taken to grind
Grinds are uniformly spread out, even application phenolphthalein indicator, see whether red occur, will if RED sector volume is greater than 5%
Recycled aggregate re-starts charing, until recycled aggregate weight≤5% not carbonized.
By using above-mentioned technical proposal, it can accurately know whether the charing of recycled aggregate reaches requirement.
The further setting of the present invention is that the regeneration concrete of preparation includes the component of following parts by weight:
Primary aggregate 965-1328 parts；
Coarse aggregate 331-528 parts of purification；
Fine aggregate 268-488 parts of purification；
566-720 parts of cement；
231-322 parts of flyash；
118-266 parts of blast-furnace cinder；
25-55 parts of water-reducing agent；
221-308 parts of water；
18-45 parts of pore regulating agents.
The further setting of the present invention are as follows: the methylene dimethyl dinaphthyl that the water-reducing agent is 1:1.5-3.5 by weight ratio
Sulfonic acid sodium polymer and β base naphthalenesulfonate formaldehyde condensation compound composition；The gap regulator includes that weight ratio is 1:0.5-0.8
The sustained release agent and swelling agent of carbon dioxide can be discharged.
By using above-mentioned technical proposal, the methylene dimethyl sodium dinaphthalenesulfonate polymer in water-reducing agent can reduce water
Muddy water thermal peak has peptizaiton to cement granules, can improve its workability, unit consumption of water is reduced, to reduce coagulation
The moisture later period evaporates the void content to be formed in soil, reduces void ratio, further improves the anti-permeability performance of concrete；And β base naphthalene
Sulfonate and formaldehyde condensation product belongs to non-air-entraining water-reducing agent, while reducing the ratio of mud, can also improve the mobility of the mixed pure land；
And the setting of sustained release agent is so as to be sustained out carbon dioxide, the hydrogen in carbon dioxide and concrete especially in recycled aggregate
Calcium oxide generation chemical reaction generation calcium carbonate, and the variation that the adjoint volume of generation meeting of calcium carbonate become larger, thus further
Improve the pore structure of inside concrete so that concrete is whole more closely knit, also improve concrete finished product stress intensity and
Durability strengthens the performance and quality of recycled concrete component；
Finally, the strain that on the one hand setting of swelling agent adjusts hydrated cementitious thermal change and when drying shrinkage generates, on the other hand also into
The pore structure that can improve inside concrete of one step reinforces the stress intensity and service life of regeneration concrete.
The further setting of the present invention are as follows: the sustained release agent is the aluminosilicate by carbon dioxide Immersion treatment.
By using above-mentioned technical proposal, aluminosilicate is the tetrahedral a part of the SiO4 in silicate by the four sides AlO4
Body replaces composition, such as orthoclase, anorthite, and anorthite molecular formula therein is CaAl2SiO8, and half is the four sides AlO4
Body, the other half is SiO4 tetrahedron.Just because of above-mentioned molecular structure, so that it can be inhaled with excellent suction-operated
Attached a large amount of gas, therefore can be used as excellent carbon dioxide carrier.
The further setting of the present invention are as follows: the swelling agent includes calcium oxide, calcium sulphoaluminate and magnesia, and calcium oxide,
Weight ratio between calcium sulphoaluminate and magnesia is 2-3:1:1.
By using above-mentioned technical proposal, calcium oxide expansion energy is high, and expansion explosive force is strong, and early expansion amount is big, and coagulation
Native component early stage because hydration heat of cement brings amount of heat to generate a large amount of temperature stresses, can be offset morning by calcium oxide
Most of internal stress of phase, reduces the generation in crack；There is calcium sulphoaluminate expansion to mitigate, and the action period is longer, can be applicable in
It in the fracture development of concrete component mid-term, can effectively inhibit the development in crack caused by especially dilation matrices, reinforce mixed
Compactness inside solidifying soil, further strengthens waterproof performance；The time that the hydration reaction and bulking effect of magnesia occur is longer,
The effect of its expansion could be embodied later by generally requiring a period of time, therefore can be used for since building inside and outside temperature becomes
Contraction fissure and concrete component itself caused by change creep caused by crack inhibition and blocking action, therefore pass through
The combination of above-mentioned three kinds of expansion sources can provide various deformation inside stable elimination in the Life cycle of concrete component
The expansive force of stress, the generation in crack, is greatly improved the impervious of concrete component as far as possible in reduction concrete component
Ability.Moreover, the rational proportion of the above-mentioned three kinds of swelling agents of setting, can with the regeneration concrete later period creep and drying shrinkage phase
Match, reduces deformation or the crack of later period generation to the greatest extent, extend the service life of concrete.
The further setting of the present invention are as follows: further include air entraining agent, the air entraining agent is the poor soap that parts by weight are 43-66 parts
Element.
By using above-mentioned technical proposal, poor saponin can introduce a large amount of uniform, stable during concrete stirs
And closed micro-bubble, small bubble increase slurry volume and generate the effect of lubrication to mix as ball,
These micro-bubbles also change the pore structure of inside concrete simultaneously, enclose a large amount of capillary porosity duct, further
Promote the impermeability of concrete.
The further setting of the present invention are as follows: when being stirred in S4, first will purification coarse aggregate, purification fine aggregate, cement and
Water is mixed and stirred for, and is added remaining ingredient after mixing evenly and is in positive pressure environment when each component being maintained to mix.
By using above-mentioned technical proposal, first purification coarse aggregate, purification fine aggregate, cement and water are mixed and stirred
It mixes, so that cement first wraps up recycled aggregate completely, and then the hole outside a part of recycled aggregate can be filled up, while also subtracting
The evolution speed of slow recycled aggregate inner silica carbon, so that the carbon dioxide of evolution more can be with Xu of later concrete
It is positive pressure when in a disguised form adapting to, and stirring being similarly set, can also slows down other evolutions in recycled aggregate and sustained release agent.
In conclusion the invention has the following advantages: processing for recycled aggregate raw material, screening repeatedly removes layer by layer
It is miscellaneous, achieve the effect that refine high standard, enhances the mechanical property of recycled aggregate raw material；The mistake that recycled aggregate is carbonized is set again
Journey and the sustained release agent of addition further improve the internal pore structure of regeneration concrete, reduce the development in later period crack,
Integral strength and impermeability are promoted, is prolonged the service life.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Specific embodiment
Embodiment 1-5, a kind of regeneration concrete, the component for including and corresponding content are as shown in table 1.Wherein, cement is
The ordinary portland cement that strength grade is 32.5；The partial size for refining coarse aggregate is 5-20mm, and purification fine aggregate partial size is 1.5-
4mm；The methylene dimethyl sodium dinaphthalenesulfonate polymer and β base naphthalenesulfonate formaldehyde condensation compound that water-reducing agent is 1:3 by weight ratio
Composition；Gap regulator includes the sustained release agent and swelling agent that weight ratio is 1:0.5, and sustained release agent is by carbon dioxide Immersion treatment
The aluminosilicate crossed, swelling agent are made of calcium oxide, calcium sulphoaluminate and the magnesia that weight ratio is 3:1:1.
Each component and its correspondence content table (kg) in 1 embodiment 1-5 of table
Embodiment 6, a kind of regeneration concrete, the difference from embodiment 1 is that, without containing poor saponin.
Embodiment 7, a kind of production technology of regeneration concrete, the component contained and corresponding content are referring to embodiment 1, packet
Containing the step of it is as follows:
S1 prepares recycled aggregate, and waste and old concrete block is crushed, and removes reinforcing bar and sieves, recycled aggregate is obtained, by recycled aggregate
Metal impurities successively are removed by magnetic sorting and iron rust, selection by winnowing removal of impurities reduce foliage plants and washing dedusting washes away soil, are obtained
To qualified recycled aggregate, is once sieved at this time, obtain regenerated coarse aggregate and recycled fine aggregate, and regenerated coarse aggregate partial size
For 5-40mm, recycled fine aggregate partial size is less than 5mm；
The regenerated coarse aggregate handled by S1 and recycled fine aggregate are heated to 300 DEG C by S2, recycled aggregate pretreatment, then
It is secondary to be crushed, and carry out regrading after broken and obtain purification coarse aggregate and recycled fine aggregate, purification coarse aggregate size is
5-20mm, recycled fine aggregate partial size is less than 5mm, while also carrying out third time screening to recycled fine aggregate, obtains purification fine aggregate,
The partial size for refining fine aggregate is 0.15-5mm；
The recycled aggregate handled by S1 and S2 is placed in closed container and carbonizes by S3, recycled aggregate secondary treatment, controls
Relative humidity processed is 85%, CO2 concentration is 75%, until recycled aggregate weight≤5% not carbonized, recycled aggregate secondary treatment
It after the completion of charing, takes partial regeneration aggregate to pulverize and uniformly spreads out, even application phenolphthalein indicator sees whether to occur red
Recycled aggregate is re-started charing if RED sector volume is greater than 5% by color, until the recycled aggregate weight not carbonized≤
5%；
S4, the preparation of regeneration concrete will be added in stirred tank, mixing by S3 treated recycled aggregate and other each components
And stir evenly, and being kept stirring air pressure in kettle is 1.2-1.5MPa, to keep in aluminosilicate and recycled aggregate as far as possible
Carbon dioxide evolution less in whipping process slows down the speed that carbon dioxide escapes in regeneration concrete.
Embodiment 8, a kind of production technology of regeneration concrete, the difference with embodiment 7 is, when being carbonized in S3,
Control relative humidity is 55%, CO2 concentration is 45%.
Comparative example 1-7, a kind of regeneration concrete, the difference from embodiment 1 is that, the component and corresponding content for including are such as
Shown in table 2, wherein cement is the ordinary portland cement that strength grade is 32.5；The partial size for refining coarse aggregate is 5-20mm, essence
The partial size of fine aggregate processed is 1.5-5mm；The methylene dimethyl sodium dinaphthalenesulfonate polymer and β that water-reducing agent is 1:3 by weight ratio
Base naphthalenesulfonate formaldehyde condensation compound composition；Gap regulator includes the sustained release agent and swelling agent that weight ratio is 1:0.5, and sustained release agent is
By the aluminosilicate that carbon dioxide Immersion treatment is crossed, calcium oxide, calcium sulphoaluminate and the oxidation that swelling agent is 3:1:1 by weight ratio
Magnesium composition.
Each component and its correspondence content table (kg) in 2 comparative example 1-7 of table
Comparative example 8, a kind of production method of regeneration concrete, the difference with embodiment 7 are: broken obtained Regenerated Bone
Regeneration concrete is directly prepared without pretreatment in S3 in material.
Comparative example 9, a kind of production method of regeneration concrete, the difference with embodiment 7 are: when stirred in S4,
It is normal pressure in stirred tank.
Characterization experiment
Experiment 1, compression strength experiment
Experimental subjects: the concrete product that each component is prepared in embodiment 1-7, comparative example 1-9 is prepared into standard size
The bulk of 10cm*10cm*10cm tests 7 days and 28 days compression strength respectively.
Experimental result: it is recorded into table 3.
3 compression strength table (MPa) of table
| Group | 7 days | 28 days | Group | 7 days | 28 days |
| Embodiment 1 | 25.3 | 36.4 | Comparative example 2 | 21.0 | 26.5 |
| Embodiment 2 | 26.4 | 34.5 | Comparative example 3 | 25.6 | 27.3 |
| Embodiment 3 | 24.9 | 35.2 | Comparative example 4 | 23.2 | 27.5 |
| Embodiment 4 | 27.1 | 36.6 | Comparative example 5 | 19.3 | 24.4 |
| Embodiment 5 | 26.4 | 35.6 | Comparative example 6 | 20.6 | 25.1 |
| Embodiment 6 | 24.7 | 35.5 | Comparative example 7 | 19.5 | 24.2 |
| Embodiment 7 | 28.8 | 36.5 | Comparative example 8 | 22.4 | 25.3 |
| Comparative example 1 | 22.4 | 28.3 | Comparative example 9 | 24.6 | 28.9 |
Experiment 2, impervious experiment
Experimental subjects: the concrete product that each component is prepared in embodiment 1-7, comparative example 1-9 is prepared into standard size
The blocky test specimen of 10cm*10cm*10cm, 6 test specimens of every group of preparation.
Experiment content: it after cleaning surface of test piece reaches cleaning, in the sealing material that one layer of the roller coating of test specimen side melts, and fills
Enter in Anti-leakage instrument according to standard impermeability test.When test, hydraulic pressure since 0.2Mpa, every 2h increase 0.025Mpa hydraulic pressure and with
Seep water situation for Shi Jilu test block end face, and being added to always in 6 test blocks has 3 test block surface discovery infiltrations, writes down hydraulic pressure at this time
Power is the seepage-resistant grade of current test specimen group.
Experimental result: it is recorded into table 4.
The impervious water pressure summary sheet (Mpa) of table 4
Claims (10)
1. a kind of regeneration concrete manufacture craft, which comprises the steps of:
S1 prepares recycled aggregate, and waste and old concrete is broken, primary screening, cleaning obtain regenerated coarse aggregate and regenerate thin bone
Material；
The regenerated coarse aggregate and recycled fine aggregate that handle by S1 are heated to 300-400 by S2, recycled aggregate pretreatment
DEG C, it is crushed again, and carry out regrading after broken and obtain purification coarse aggregate and recycled fine aggregate；
The purification coarse aggregate and recycled fine aggregate that handle by S1 and S2 are placed in close by S3, recycled aggregate secondary treatment
It closes in container and carbonizes, it is 30-75% that control relative humidity, which is 40-85%, CO2 concentration, until the recycled aggregate weight not carbonized≤
5%；
S4 prepares regeneration concrete, by the recycled aggregate and primary aggregate, adhesive backers, filler material, additive by S3 processing
It is stirred, finished product.
2. a kind of regeneration concrete manufacture craft according to claim 1, it is characterised in that: in S1 to waste and old concrete into
After row is broken, by broken concrete block by magnetic separation screening, remove containing metal impurities.
3. a kind of regeneration concrete manufacture craft according to claim 2, it is characterised in that: carry out after once sieving, obtain
The regenerated coarse aggregate partial size arrived is 5-40mm, and recycled fine aggregate partial size is less than 5mm；The essence obtained after regrading in S2
Coarse aggregate size processed is 5-20mm, and recycled fine aggregate partial size is less than 5mm, then carries out sub-sieve three times to recycled fine aggregate, obtains grain
Diameter is the purification fine aggregate of 0.15-5mm.
4. a kind of regeneration concrete manufacture craft according to claim 3, it is characterised in that: the secondary place of recycled aggregate in S3
After the completion of reason charing, takes partial regeneration aggregate to pulverize and uniformly spread out, even application phenolphthalein indicator sees whether to occur red
Recycled aggregate is re-started charing if RED sector volume is greater than 5% by color, until the recycled aggregate weight not carbonized≤
5%。
5. a kind of regeneration concrete manufacture craft according to claim 1, which is characterized in that the regeneration coagulation prepared in S4
Soil includes the component of following parts by weight:
Primary aggregate 965-1328 parts；
Coarse aggregate 331-528 parts of purification；
Fine aggregate 268-488 parts of purification；
566-720 parts of cement；
231-322 parts of flyash；
118-266 parts of blast-furnace cinder；
25-55 parts of water-reducing agent；
221-308 parts of water；
18-45 parts of pore regulating agents.
6. a kind of regeneration concrete manufacture craft according to claim 5, it is characterised in that: the water-reducing agent is by weight ratio
It is formed for the methylene dimethyl sodium dinaphthalenesulfonate polymer and β base naphthalenesulfonate formaldehyde condensation compound of 1:1.5-3.5；The gap
Regulator includes the sustained release agent and swelling agent that can discharge carbon dioxide that weight ratio is 1:0.5-0.8.
7. a kind of regeneration concrete manufacture craft according to claim 6, it is characterised in that: the sustained release agent is by two
The aluminosilicate of carbonoxide Immersion treatment.
8. a kind of regeneration concrete manufacture craft according to claim 7, it is characterised in that: the swelling agent includes oxidation
Calcium, calcium sulphoaluminate and magnesia, and the weight ratio between calcium oxide, calcium sulphoaluminate and magnesia is 2-3:1:1.
9. a kind of regeneration concrete manufacture craft according to claim 8, it is characterised in that: it further include air entraining agent, it is described
Air entraining agent is the poor saponin that parts by weight are 43-66 parts.
10. a kind of regeneration concrete manufacture craft according to claim 9, it is characterised in that: when being stirred in S4, first
Purification coarse aggregate, purification fine aggregate, cement and water are mixed and stirred for, remaining ingredient is added after mixing evenly and maintains
Each component is in positive pressure environment when mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917966.XA CN108975815A (en) | 2018-08-13 | 2018-08-13 | A kind of regeneration concrete manufacture craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917966.XA CN108975815A (en) | 2018-08-13 | 2018-08-13 | A kind of regeneration concrete manufacture craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108975815A true CN108975815A (en) | 2018-12-11 |
Family
ID=64552841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917966.XA Pending CN108975815A (en) | 2018-08-13 | 2018-08-13 | A kind of regeneration concrete manufacture craft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108975815A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704676A (en) * | 2019-01-19 | 2019-05-03 | 江苏盛达飞建筑材料有限公司 | A kind of impervious regeneration concrete and preparation method thereof |
| CN109824307A (en) * | 2019-04-04 | 2019-05-31 | 湖北合力久盛混凝土有限公司 | A kind of novel expansive concrete |
| CN111302688A (en) * | 2020-04-16 | 2020-06-19 | 湖州恒通机械设备有限公司 | Construction waste treatment process |
| CN112110664A (en) * | 2020-09-23 | 2020-12-22 | 武汉华强新型建筑材料有限公司 | Method for preparing recycled concrete based on activated water and recycled concrete |
| CN112606186A (en) * | 2020-12-11 | 2021-04-06 | 深圳市恒星建材有限公司 | Shrinkage and creep control method for modified recycled concrete |
| WO2021127728A1 (en) * | 2019-12-23 | 2021-07-01 | Western Sydney University | Entrainment of carbon dioxide in concrete aggregate |
| CN115521107A (en) * | 2022-09-13 | 2022-12-27 | 华新水泥股份有限公司 | Carbon dioxide cured reinforced concrete and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070017418A1 (en) * | 2005-07-25 | 2007-01-25 | Dennis Andrew C | Magnesium cementitious composition |
| CN101787771A (en) * | 2010-02-26 | 2010-07-28 | 哈尔滨工业大学深圳研究生院 | Recycled concrete member with additive and method for preparing same |
| CN103570317A (en) * | 2013-11-15 | 2014-02-12 | 北京新奥混凝土集团有限公司 | Fair-faced concrete produced by using construction waste recycled aggregates |
| CN104045251A (en) * | 2014-05-29 | 2014-09-17 | 湖南大学 | Method for carbon dioxide strengthening of recycled concrete aggregate |
| CN104876484A (en) * | 2015-05-15 | 2015-09-02 | 史才军 | Low-shrinkage regenerated aggregate concrete product and preparation method thereof |
| CN104909596A (en) * | 2015-04-03 | 2015-09-16 | 中国建筑股份有限公司 | High efficiency composite expanding agent for high-strength self-stressing concrete filled steel tube and preparation method thereof |
| CN105367004A (en) * | 2015-11-27 | 2016-03-02 | 山西四建集团有限公司 | C30 durable recycled shaping aggregate concrete prepared from construction wastes and preparation method |
| CN107344842A (en) * | 2017-07-26 | 2017-11-14 | 合肥大来新型建材有限公司 | A kind of good endurance Aggregate of recycled concrete aerated bricks and preparation method thereof |
| CN107352923A (en) * | 2017-08-23 | 2017-11-17 | 浙江裕洋隧道管片制造有限公司 | Water-tight concrete and the method for preparing the section of jurisdiction for duct pieces of shield tunnel |
-
2018
- 2018-08-13 CN CN201810917966.XA patent/CN108975815A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070017418A1 (en) * | 2005-07-25 | 2007-01-25 | Dennis Andrew C | Magnesium cementitious composition |
| CN101787771A (en) * | 2010-02-26 | 2010-07-28 | 哈尔滨工业大学深圳研究生院 | Recycled concrete member with additive and method for preparing same |
| CN103570317A (en) * | 2013-11-15 | 2014-02-12 | 北京新奥混凝土集团有限公司 | Fair-faced concrete produced by using construction waste recycled aggregates |
| CN104045251A (en) * | 2014-05-29 | 2014-09-17 | 湖南大学 | Method for carbon dioxide strengthening of recycled concrete aggregate |
| CN104909596A (en) * | 2015-04-03 | 2015-09-16 | 中国建筑股份有限公司 | High efficiency composite expanding agent for high-strength self-stressing concrete filled steel tube and preparation method thereof |
| CN104876484A (en) * | 2015-05-15 | 2015-09-02 | 史才军 | Low-shrinkage regenerated aggregate concrete product and preparation method thereof |
| CN105367004A (en) * | 2015-11-27 | 2016-03-02 | 山西四建集团有限公司 | C30 durable recycled shaping aggregate concrete prepared from construction wastes and preparation method |
| CN107344842A (en) * | 2017-07-26 | 2017-11-14 | 合肥大来新型建材有限公司 | A kind of good endurance Aggregate of recycled concrete aerated bricks and preparation method thereof |
| CN107352923A (en) * | 2017-08-23 | 2017-11-17 | 浙江裕洋隧道管片制造有限公司 | Water-tight concrete and the method for preparing the section of jurisdiction for duct pieces of shield tunnel |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704676A (en) * | 2019-01-19 | 2019-05-03 | 江苏盛达飞建筑材料有限公司 | A kind of impervious regeneration concrete and preparation method thereof |
| CN109704676B (en) * | 2019-01-19 | 2021-11-05 | 江苏盛达飞建筑材料有限公司 | Anti-permeability recycled concrete and preparation method thereof |
| CN109824307A (en) * | 2019-04-04 | 2019-05-31 | 湖北合力久盛混凝土有限公司 | A kind of novel expansive concrete |
| WO2021127728A1 (en) * | 2019-12-23 | 2021-07-01 | Western Sydney University | Entrainment of carbon dioxide in concrete aggregate |
| CN111302688A (en) * | 2020-04-16 | 2020-06-19 | 湖州恒通机械设备有限公司 | Construction waste treatment process |
| CN112110664A (en) * | 2020-09-23 | 2020-12-22 | 武汉华强新型建筑材料有限公司 | Method for preparing recycled concrete based on activated water and recycled concrete |
| CN112606186A (en) * | 2020-12-11 | 2021-04-06 | 深圳市恒星建材有限公司 | Shrinkage and creep control method for modified recycled concrete |
| CN115521107A (en) * | 2022-09-13 | 2022-12-27 | 华新水泥股份有限公司 | Carbon dioxide cured reinforced concrete and preparation method thereof |
| CN115521107B (en) * | 2022-09-13 | 2023-09-29 | 华新水泥股份有限公司 | Reinforced concrete cured by carbon dioxide and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108975815A (en) | A kind of regeneration concrete manufacture craft | |
| CN105541384B (en) | A kind of ultralight foam concrete and preparation method thereof | |
| US8236098B2 (en) | Settable building material composition including landfill leachate | |
| CN110357548A (en) | A kind of full solid waste concrete of high-early-strength high-performance and preparation method thereof | |
| CN108623266A (en) | A kind of regeneration concrete and its production technology | |
| CN108358581A (en) | A kind of concrete and preparation method thereof containing refining slag | |
| EP1362017B1 (en) | Cementitious material | |
| CN101423355A (en) | Sulphoaluminates expansion agent prepared by industrial residue used in cement or concrete | |
| He et al. | Effects of TEA on rheological property and hydration performance of lithium slag-cement composite binder | |
| CA3152661A1 (en) | Integrated process for manufacturing hydraulically hardening building material | |
| CN109896770B (en) | Concrete reinforcing agent | |
| CN112142377A (en) | Concrete processing technology doped with waste concrete blocks | |
| CN114213095A (en) | Alkali-activated phosphogypsum self-leveling mortar | |
| CN114890765A (en) | Plastering gypsum and preparation method thereof | |
| CN108751863B (en) | Cementing material based on saline soil and preparation method thereof | |
| CN110590299A (en) | Low-shrinkage wear-resistant cement concrete road rapid repairing material and preparation method thereof | |
| KR20100037889A (en) | Manufacturing method of cement zero concrete using mixed waste glass powder and fly ash as binder | |
| CN111732387B (en) | Preparation method of recycled concrete doped with waste concrete blocks | |
| CN111548114A (en) | High-performance concrete and preparation method thereof | |
| CN107382212B (en) | Concrete for hydraulic engineering | |
| CN1192195A (en) | Hydraulic cement set accelerators based on nitroalcohols | |
| CN112876184A (en) | Sludge curing agent and preparation method and use method thereof | |
| CN108275905A (en) | A kind of compound additive and preparation method thereof of enhancing cement-based material self-healing properties | |
| CN116514431B (en) | Anti-cracking and anti-permeability agent for concrete and preparation method thereof | |
| KR20110033494A (en) | Method for manufacturing porous material of calcium silicate using cement kiln by-pass dust and porous material of calcium silicate manufactured with this |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |
|
| RJ01 | Rejection of invention patent application after publication |