CN109095823A - A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified - Google Patents
A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified Download PDFInfo
- Publication number
- CN109095823A CN109095823A CN201810784069.6A CN201810784069A CN109095823A CN 109095823 A CN109095823 A CN 109095823A CN 201810784069 A CN201810784069 A CN 201810784069A CN 109095823 A CN109095823 A CN 109095823A
- Authority
- CN
- China
- Prior art keywords
- fibre
- concrete
- poured
- assorted
- lightweight
- 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.)
- Withdrawn
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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- 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
- C04B2111/29—Frost-thaw resistance
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- 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)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of preparation methods of the modified permeable durable regeneration concrete of lightweight of assorted fibre, mineral are first closed to material disastrously and cementitious material, fine aggregate, modification regeneration coarse aggregate mix, water is poured into again stirs to obtain cement slurry, ternary assorted fibre and water mixing are poured into cement slurry and stirred, add efficient naphthalene water reducer, the foam that foam device modulates is added after stirring evenly, mixes well, concrete slurry is made；The concrete slurry modulated is poured into mold, is gently vibrated uniformly, is covered preservative film in the specimen surface poured, demould, conserved after standing.Glass fibre, polypropylene fibre and steel fibre are mixed into ternary assorted fibre, regeneration concrete is modified, its compression strength can be obviously improved, steel fibre belongs to high modulus fibre in assorted fibre, so that the elasticity modulus of regeneration concrete increases after incorporation assorted fibre, the incorporation of assorted fibre can obviously improve the anti-seismic performance of regeneration concrete, enhance its ductility and energy-dissipating property.
Description
Technical field
The invention belongs to technical field of concrete, and in particular to a kind of permeable durable regeneration of the lightweight that assorted fibre is modified is mixed
Coagulate the preparation method of soil.
Background technique
China greatly develops construction industry since 21 century, produces mega structure rubbish, due to not proper to building waste
When processing mode, greatly compromise us and rely the natural environment of survival；On the other hand production construction material needs a large amount of
A large amount of natural resources is exploited, significant threat is constituted to ecological environment and natural resources.Building waste recycling, processing is sharp again
With, not only can solve destruction of the building waste to natural environment, also can be relieved because sand extraction to ecology constitute threat, institute
It is effective and reasonable using to solving these problems great significance to carry out waste and old concrete.
Recycled concrete can not only reduce the exploitation to natural sand stone resource, can also well solve big
The problems such as recrementitious ecological environment of Solid construction is worsening is measured, to improvement of the ecological environment and economic construction
Long-range orderly development has great importance.But the special forming process of recycled aggregate often makes it, and there are some interior
Portion's defect also has different with its regeneration concrete items mechanical property prepared compared with normal concrete.
Therefore, in order to make up the deficiency of regeneration concrete, expand its application in practical projects, to modification regeneration coagulation
The research of soil and modification regeneration concrete component anti-seismic performance is imperative.
Durability is an important factor for influencing engineering structure service life.Lightweight concrete is as a kind of novel building
Material achieved extensive use in rock king's engineering by its excellent characteristic in recent years.However in practical engineering applications, gently
The earth removal of matter coagulation will also suffer from the influence of various natural causes in environment, in adverse circumstances outside the effect by various loads
Under the conditions of may because durability is bad cause damage even destroy.If lacking the understanding to lightweight concrete durability,
Many engineerings will be made just to hide some dangers in construction, unnecessary economic loss is caused in later period use process, but at present
Research in terms of the solidifying native durability in control matter source is still few, it is therefore necessary to carry out system to the endurance quality of lightweight concrete and grind
Study carefully.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of permeable durable regeneration of lightweight that assorted fibre is modified is provided
The preparation method of concrete has excellent mechanical property and endurance quality according to the regeneration concrete of this method preparation, and light
Matter is permeable.
The present invention is achieved by the following technical solutions:
A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified, which is characterized in that including walking as follows
It is rapid:
(1) modification regeneration concrete coarse aggregate:
By waste and old concrete by broken processing, screening obtains the recycled concrete coarse aggregate that partial size is 5-40mm, puts it into
In vacuum tank, continue 5-6h under 0.1MPa vacuum pressure, injects poly-vinyl alcohol solution, after impregnating modification 23-25h,
It takes out, is dried at room temperature for；
(2) foam is modulated:
2-4 parts of foaming agents are poured into water mixing, expanding foam solution is stirred evenly to obtain, expanding foam solution is poured into the fluid cylinder of foaming machine and is carried out
Foaming；
(3) slurry is prepared:
25-35 parts of mineral are first closed to material disastrously and 30-45 parts of cementitious materials, 60-70 parts of fine aggregates, 70-80 parts (1) middle gained are modified
Regenerated coarse aggregate is uniformly mixed, then is poured into water and be stirred to obtain cement slurry, and 1-2 parts of ternary assorted fibres and water are uniformly mixed
Enter in cement slurry and stir, adds 5-7 parts of efficient naphthalene water reducers, be stirring evenly and then adding into the bubble that foam device modulates in (2)
Foam is sufficiently mixed uniformly, concrete slurry is made；
(4) it pours and conserves:
The concrete slurry modulated in (3) is poured into mold, gently vibrates uniformly, is covered in the specimen surface poured
Preservative film demoulds after standing 23-25h indoors, is sent into standard curing room and is conserved.
Further, pva powder is added in pure water in step (1), it is 8-12% that stirring and dissolving, which obtains concentration,
Poly-vinyl alcohol solution.
Further, the mass ratio of foaming agent and water is 1:55-65 in step (2).
Further, step (3) Minerals close material disastrously and are made of quality such as flyash, silicon powders；Cementitious material by cement, change
Property the quality composition such as epoxy adhesive；Fine aggregate is made of quality such as crushed stone aggregate, light ceramic, lecas；Ternary
Assorted fibre is compounded by quality such as glass fibre, steel fibre, polypropylene fibres；The ratio of mud is 0.28-0.32.
The present invention has the advantage that compared with prior art
(1) by waste and old concrete by broken processing, screening obtains recycled concrete coarse aggregate, impregnates in poly-vinyl alcohol solution
Modification increases the apparent density, bulk density and crush index value of recycled aggregate, reduces water absorption rate, utilize poly- second
The mechanical property improvement of the regeneration concrete of enolate solution modification is good.
(2) glass fibre can significantly increase the anti-permeability performance of high density lightweight concrete, can effectively inhibit lightweight concrete
Drying shrinkage；Flyash has good shape effect, micro-aggregate filling effect and volcano ash effect, can improve lightweight concrete
Internal structure, significantly improve the anti-permeability performance of lightweight concrete, can effectively improve the shrinkage performance of lightweight concrete；Add glass
Glass fiber and flyash can significantly improve the frost resistance of lightweight concrete；Silicon powder is remarkably improved lightweight within the scope of smaller miserable amount
The impermeability of concrete can reduce drying shrinkage to a certain extent, can significantly improve the frost resistance of low-density lightweight concrete.
(3) glass fibre and polypropylene fibre and steel fibre are mixed into ternary assorted fibre, to regeneration concrete into
Row is modified, and can be obviously improved its compression strength, and the steel fibre in assorted fibre belongs to high modulus fibre, so that incorporation mixes
The elasticity modulus of regeneration concrete increases after fiber, and the incorporation of assorted fibre can obviously improve the anti-seismic performance of regeneration concrete,
Enhance its ductility and energy-dissipating property.
(4) material is closed as mineral using flyash, silicon powder disastrously, using cement, modified epoxy resin adhesive as cementitious material, with broken
Stone aggregate, light ceramic, leca are fine aggregate, add modification regeneration concrete coarse aggregate, the preparation of ternary assorted fibre mixes
Solidifying earth material slurry, is poured, conserves to obtain the permeable durable regeneration concrete of lightweight.
Specific embodiment
Embodiment 1
A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified, which is characterized in that including walking as follows
It is rapid:
(1) modification regeneration concrete coarse aggregate:
By waste and old concrete by broken processing, screening obtains the recycled concrete coarse aggregate that partial size is 5-40mm, puts it into
In vacuum tank, continue 5h under 0.1MPa vacuum pressure, inject poly-vinyl alcohol solution, after impregnating modification 23h, takes out,
It is dried at room temperature for；
(2) foam is modulated:
2 parts of foaming agents are poured into water mixing, expanding foam solution is stirred evenly to obtain, expanding foam solution is poured into the fluid cylinder of foaming machine and is sent out
Bubble；
(3) slurry is prepared:
25 parts of mineral are first closed to material disastrously and 30 parts of cementitious materials, 60 parts of fine aggregates, 70 parts (1) middle gained modification regeneration coarse aggregates are mixed
It closes uniformly, then pours into water and be stirred to obtain cement slurry, 1 part of ternary assorted fibre and water are uniformly mixed to pour into cement slurry and stirred
It mixes, adds 5 parts of efficient naphthalene water reducers, be stirring evenly and then adding into the foam that foam device modulates in (2), be sufficiently mixed
It is even, concrete slurry is made；
(4) it pours and conserves:
The concrete slurry modulated in (3) is poured into mold, gently vibrates uniformly, is covered in the specimen surface poured
Preservative film demoulds after standing 23h indoors, is sent into standard curing room and is conserved.
Further, pva powder is added in pure water in step (1), stirring and dissolving obtain concentration be 8% it is poly-
Glycohol solution.
Further, the mass ratio of foaming agent and water is 1:55 in step (2).
Further, step (3) Minerals close material disastrously and are made of quality such as flyash, silicon powders；Cementitious material by cement, change
Property the quality composition such as epoxy adhesive；Fine aggregate is made of quality such as crushed stone aggregate, light ceramic, lecas；Ternary
Assorted fibre is compounded by quality such as glass fibre, steel fibre, polypropylene fibres；The ratio of mud is 0.28.
Embodiment 2
A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified, which is characterized in that including walking as follows
It is rapid:
(1) modification regeneration concrete coarse aggregate:
By waste and old concrete by broken processing, screening obtains the recycled concrete coarse aggregate that partial size is 5-40mm, puts it into
In vacuum tank, continue 6h under 0.1MPa vacuum pressure, inject poly-vinyl alcohol solution, after impregnating modification 25h, takes out,
It is dried at room temperature for；
(2) foam is modulated:
4 parts of foaming agents are poured into water mixing, expanding foam solution is stirred evenly to obtain, expanding foam solution is poured into the fluid cylinder of foaming machine and is sent out
Bubble；
(3) slurry is prepared:
35 parts of mineral are first closed to material disastrously and 45 parts of cementitious materials, 70 parts of fine aggregates, 80 parts (1) middle gained modification regeneration coarse aggregates are mixed
It closes uniformly, then pours into water and be stirred to obtain cement slurry, 2 parts of ternary assorted fibres and water are uniformly mixed to pour into cement slurry and are stirred
It mixes, adds 7 parts of efficient naphthalene water reducers, be stirring evenly and then adding into the foam that foam device modulates in (2), be sufficiently mixed
It is even, concrete slurry is made；
(4) it pours and conserves:
The concrete slurry modulated in (3) is poured into mold, gently vibrates uniformly, is covered in the specimen surface poured
Preservative film demoulds after standing 25h indoors, is sent into standard curing room and is conserved.
Further, pva powder is added in pure water in step (1), it is 12% that stirring and dissolving, which obtains concentration,
Poly-vinyl alcohol solution.
Further, the mass ratio of foaming agent and water is 1:65 in step (2).
Further, step (3) Minerals close material disastrously and are made of quality such as flyash, silicon powders；Cementitious material by cement, change
Property the quality composition such as epoxy adhesive；Fine aggregate is made of quality such as crushed stone aggregate, light ceramic, lecas；Ternary
Assorted fibre is compounded by quality such as glass fibre, steel fibre, polypropylene fibres；The ratio of mud is 0.32.
There is excellent mechanical property and endurance quality according to the regeneration concrete of the method for the present invention preparation, and lightweight is saturating
Water.
Claims (4)
1. a kind of preparation method of the modified permeable durable regeneration concrete of lightweight of assorted fibre, which is characterized in that including as follows
Step:
(1) modification regeneration concrete coarse aggregate:
By waste and old concrete by broken processing, screening obtains the recycled concrete coarse aggregate that partial size is 5-40mm, puts it into
In vacuum tank, continue 5-6h under 0.1MPa vacuum pressure, injects poly-vinyl alcohol solution, after impregnating modification 23-25h,
It takes out, is dried at room temperature for；
(2) foam is modulated:
2-4 parts of foaming agents are poured into water mixing, expanding foam solution is stirred evenly to obtain, expanding foam solution is poured into the fluid cylinder of foaming machine and is carried out
Foaming；
(3) slurry is prepared:
25-35 parts of mineral are first closed to material disastrously and 30-45 parts of cementitious materials, 60-70 parts of fine aggregates, 70-80 parts (1) middle gained are modified
Regenerated coarse aggregate is uniformly mixed, then is poured into water and be stirred to obtain cement slurry, and 1-2 parts of ternary assorted fibres and water are uniformly mixed
Enter in cement slurry and stir, adds 5-7 parts of efficient naphthalene water reducers, be stirring evenly and then adding into the bubble that foam device modulates in (2)
Foam is sufficiently mixed uniformly, concrete slurry is made；
(4) it pours and conserves:
The concrete slurry modulated in (3) is poured into mold, gently vibrates uniformly, is covered in the specimen surface poured
Preservative film demoulds after standing 23-25h indoors, is sent into standard curing room and is conserved.
2. a kind of preparation method of the modified permeable durable regeneration concrete of lightweight of assorted fibre according to claim 1,
It is characterized in that, pva powder is added in pure water in step (1), stirring and dissolving obtains the poly- second that concentration is 8-12%
Enolate solution.
3. a kind of preparation method of the modified permeable durable regeneration concrete of lightweight of assorted fibre according to claim 1,
It is characterized in that, the mass ratio of foaming agent and water is 1:55-65 in step (2).
4. a kind of preparation method of the modified permeable durable regeneration concrete of lightweight of assorted fibre according to claim 1,
It is made of it is characterized in that, step (3) Minerals close material disastrously quality such as flyash, silicon powders；Cementitious material is by cement, modified epoxy
The quality such as resinoid bond composition；Fine aggregate is made of quality such as crushed stone aggregate, light ceramic, lecas；Ternary mixes fibre
Dimension is compounded by quality such as glass fibre, steel fibre, polypropylene fibres；The ratio of mud is 0.28-0.32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810784069.6A CN109095823A (en) | 2018-07-17 | 2018-07-17 | A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810784069.6A CN109095823A (en) | 2018-07-17 | 2018-07-17 | A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109095823A true CN109095823A (en) | 2018-12-28 |
Family
ID=64846534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810784069.6A Withdrawn CN109095823A (en) | 2018-07-17 | 2018-07-17 | A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109095823A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592990A (en) * | 2019-02-01 | 2019-04-09 | 马清浩 | A kind of gelling foamed concrete and preparation method thereof |
| CN110183153A (en) * | 2019-05-20 | 2019-08-30 | 福建师范大学 | A method of inorganic artificial stone is prepared using solid state mechanochemistry reactor |
| CN110563429A (en) * | 2019-09-20 | 2019-12-13 | 成都志达商品混凝土厂 | high-strength pervious concrete |
| CN111943600A (en) * | 2020-08-19 | 2020-11-17 | 瑞洲建设集团有限公司 | Town road pervious concrete and construction method thereof |
| CN112194398A (en) * | 2020-10-12 | 2021-01-08 | 北京联绿技术集团有限公司 | Preparation method of waste brick aggregate |
| CN112876157A (en) * | 2021-01-29 | 2021-06-01 | 江苏中砼新材料科技有限公司 | Low-shrinkage recycled concrete and preparation method thereof |
| CN113135711A (en) * | 2021-05-10 | 2021-07-20 | 山东省路桥集团有限公司 | Multi-scale fiber modified pervious concrete and preparation method thereof |
| CN115029988A (en) * | 2022-06-20 | 2022-09-09 | 焦楚杰 | Construction method of sponge city pervious concrete |
| CN115124305A (en) * | 2022-06-24 | 2022-09-30 | 保利长大工程有限公司 | High-performance artificial sand concrete and preparation method thereof |
-
2018
- 2018-07-17 CN CN201810784069.6A patent/CN109095823A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592990A (en) * | 2019-02-01 | 2019-04-09 | 马清浩 | A kind of gelling foamed concrete and preparation method thereof |
| CN109592990B (en) * | 2019-02-01 | 2021-10-26 | 刘沛灵 | Cementitious foamed concrete and preparation method thereof |
| CN110183153A (en) * | 2019-05-20 | 2019-08-30 | 福建师范大学 | A method of inorganic artificial stone is prepared using solid state mechanochemistry reactor |
| CN110563429A (en) * | 2019-09-20 | 2019-12-13 | 成都志达商品混凝土厂 | high-strength pervious concrete |
| CN110563429B (en) * | 2019-09-20 | 2021-06-11 | 成都志达商品混凝土厂 | High-strength pervious concrete |
| CN111943600A (en) * | 2020-08-19 | 2020-11-17 | 瑞洲建设集团有限公司 | Town road pervious concrete and construction method thereof |
| CN111943600B (en) * | 2020-08-19 | 2023-04-18 | 瑞洲建设集团有限公司 | Town road pervious concrete and construction method thereof |
| CN112194398A (en) * | 2020-10-12 | 2021-01-08 | 北京联绿技术集团有限公司 | Preparation method of waste brick aggregate |
| CN112876157A (en) * | 2021-01-29 | 2021-06-01 | 江苏中砼新材料科技有限公司 | Low-shrinkage recycled concrete and preparation method thereof |
| CN113135711A (en) * | 2021-05-10 | 2021-07-20 | 山东省路桥集团有限公司 | Multi-scale fiber modified pervious concrete and preparation method thereof |
| CN115029988A (en) * | 2022-06-20 | 2022-09-09 | 焦楚杰 | Construction method of sponge city pervious concrete |
| CN115124305A (en) * | 2022-06-24 | 2022-09-30 | 保利长大工程有限公司 | High-performance artificial sand concrete and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109095823A (en) | A kind of preparation method for the permeable durable regeneration concrete of lightweight that assorted fibre is modified | |
| CN100434382C (en) | Plastic anti-crack modified fiber of cement-based material and prepn. process | |
| CN104153512B (en) | A kind of processing method of building waste foamed concrete composite heat insulation block | |
| CN101602567B (en) | Waste mud solidification processing method based on polypropylene acetamide | |
| CN113387620B (en) | Solidified dredged sludge block based on alkali-activated cementing material and preparation method thereof | |
| CN108164208A (en) | A kind of nano silicon dioxide regeneration concrete and preparation method thereof | |
| CN107244822B (en) | Richness starches vibrate cementing sand gravel preparation and the method for antiseepage protection structure construction | |
| CN107879681B (en) | Concrete slurry, alkali-activated light rubber recycled concrete and preparation method thereof | |
| CN105801165A (en) | Mixed foamed sludge light-weight permeable composition used for roadbed filling and preparation method thereof | |
| CN108396737A (en) | The Soil-cement pile material of Strengthening Wet soil base | |
| CN108358547A (en) | A kind of silane coupler modified diabase pervious concrete | |
| CN109437761A (en) | A kind of preparation method of energy conservation and environmental protection lightweight aggregate concrete | |
| CN108484003A (en) | It is a kind of to utilize building castoff water-permeable brick method | |
| CN111116106B (en) | Composite grouting slurry mixing proportion design method | |
| CN110092623A (en) | A kind of dredging and reclamation silt curing agent | |
| CN108821711A (en) | A kind of slope protection plant-growing type eco-concrete and preparation method thereof | |
| CN107902998A (en) | A kind of lightweight foam soil prepared using alum clay tailing and preparation method thereof | |
| CN106810150A (en) | A kind of EVA resin cooperates with the wear-resisting enhanced cement base water-permeable brick of slag micro powder | |
| CN106587846A (en) | Fabric scrap-reinforced environment-friendly crack-resistant cement-based water-permeable brick | |
| CN104827561B (en) | A kind of steam pressure PHC pile tube preparation methods without remaining slurry | |
| CN109574575A (en) | A kind of quarrel earth concrete and preparation method thereof | |
| CN108558314A (en) | A kind of pervious concrete of fibre reinforced and preparation method thereof | |
| CN101928126A (en) | Embankment rapid rescue reinforcement material and embankment rapid rescue reinforcement construction method | |
| CN101269520B (en) | Method for producing concrete building block by using pipe pile wastewater slurry | |
| CN108033717B (en) | Recycled concrete mixture and preparation method and application thereof |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181228 |