CN103274613B - Mix class building waste for brick and prepare cementitious matter and the application thereof of road basement material - Google Patents
Mix class building waste for brick and prepare cementitious matter and the application thereof of road basement material Download PDFInfo
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- CN103274613B CN103274613B CN201310227718.XA CN201310227718A CN103274613B CN 103274613 B CN103274613 B CN 103274613B CN 201310227718 A CN201310227718 A CN 201310227718A CN 103274613 B CN103274613 B CN 103274613B
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The invention discloses and a kind of mix class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly uniformly mixed by the component of following mass fraction: slag 50～70 parts, Gypsum Fibrosum 10～30 parts, Calx 5～20 parts, flyash 5～25 parts and sodium sulfate 0～5 parts.When the cementitious matter of the present invention is applied, mix class regenerated aggregate with cementitious matter as base stock with brick, or with industrial residue, mill tailings material and cementitious matter as base stock, mixed preparing produces road basement material.The present invention has environmental protection and waste utilization, cheap economic dispatch advantage.
Description
Technical field
The invention belongs to architecture engineering material and application thereof, particularly relate to the cementitious matter in a kind of road basement material
And specifically apply.
Background technology
Along with quickly propelling of Chinese Urbanization, creating substantial amounts of building waste, these building wastes do not only take up cultivated
Ground, and pollute environment.Effectively process building waste, turn waste into wealth, become the vital task of construction " beautiful China ".Building rubbish
Rubbish can be divided into coagulation great soil group rubbish and brick to mix class rubbish by its principle active component.The former is as regeneration concrete just gathering materials
Among promoting；The latter, in addition to being used for backfilling and producing building block, not yet effectively can recycle in other field.China is public
Developing rapidly of road construction is scarce, and the demand of highway construction road pavement base material is huge.Highway is with high-grade
The link base layer of municipal road is frequently with cement stabilized macadam, and rubble therein is then frequently with the graded broken stone that natural rock is broken.
Brick mix class regeneration aggregate replace natural aggregate be applied to high-grade road foundation course, will be brick is mixed class building waste effectively digest with
The important channel that scale utilizes, also can save natural resources simultaneously, protect environment and reduce cost.
It is different that CN101545234A Chinese patent literature discloses employing with CN102390956A Chinese patent literature
The portland cement based cementitious material cementing grating brick that method was transformed mixes class regeneration aggregate to prepare the technical side of roadbase
Case, such as CN102390956A Chinese patent literature discloses the sub-surface of a kind of waste cement stabilization gravel regeneration, its
By using the rubble of different gradation, cement, core-shell latex, nano core shell rubber particle etc. to prepare road basement material；And
CN102951880A Chinese patent literature the most only utilize in building waste particle diameter at 0.20 mm～the aggregate of 20 mm, and need right
It carries out roasting to prepare roadbase, and CN101698578A Chinese patent literature is then to substitute people with part building waste
Work rubble prepares roadbase.The basic Binder Materials used in existing patent documentation is common portland cement,
It is known that when portland cement is owing to hardening, self-constriction is serious, with it as inorganic binder cementing rubble paved roads base
During layer, because volume generally only has 4%～6%(mass ratio), the shrinkage of roadbase is affected less by this.But, brick mixes
Class regeneration aggregate crack and micropore are grown, and water absorption is strong, and drying shrinkage is serious, when with having inotropic portland cement conduct equally
During cementing material, this produces the risk in crack by being greatly increased roadbase.If being modified portland cement making it fit
Cost should will be greatly increased so that the popularization of influence technique in cementing regenerated aggregate.Therefore, exploitation one it is necessary in this area
New Binder Materials is for preparing roadbase.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, it is provided that a kind of formula is simple, low cost, ring
Poly is useless, cheap economical to be mixed class building waste for brick and prepares the cementitious matter of road basement material, correspondingly provide a kind of should
Cementitious matter is in the concrete application prepared on road basement material.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is mixed class building waste for one for brick and is prepared
The cementitious matter of base course material, described cementitious matter is mainly uniformly mixed by the component of following mass fraction:
Slag 50～70 parts,
Gypsum Fibrosum 10～30 parts,
Calx 5～20 parts,
Flyash 5～25 parts and
Sodium sulfate 0～5 parts.
In above-mentioned cementitious matter, described slag is preferably the Water Quenching Slag of blast furnace ironmaking slag making output；Described Gypsum Fibrosum is preferably
The mixture of one or more in the natural gypsum, industry by-product gypsum, the mineral facies of the natural gypsum are anhydrite, half water stone
The mixture of any one or more in cream, dihydrate gypsum；Described Calx is quick lime and/or slaked lime；Described flyash
Refer generally to coal-burning power plant's smokestack and discharge the gleanings of dust；Described sodium sulfate is containing water of crystallization or the sodium sulfate of nodeless mesh water, can
To be solid various natural and/or artificial, that form for primary chemical with sodium sulfate.
In above-mentioned cementitious matter, described slag, Gypsum Fibrosum, Calx, flyash and sodium sulfate are and are fully dried and are milled down to
The particulate matter (particle diameter is preferably smaller than 40 μm) of conventional cement fineness.
As total technology design, the present invention also provides for the application of a kind of above-mentioned cementitious matter, and this application includes: with
It is base stock that brick mixes class regenerated aggregate with above-mentioned cementitious matter, and mixed preparing produces road basement material；Can with industrial residue,
The materials such as mill tailings and above-mentioned cementitious matter are base stock, and mixed preparing produces road basement material.
In above-mentioned application, it is to be mixed class building waste by brick to prepare after crushing that described brick mixes class regenerated aggregate, brick
Mixed class regenerated aggregate typically need to reject organic waste in advance；When being applied to highway and Class I highway, described brick mixes class again
Raw gathering materials preferably is screened into following level Four: 0～4.75 mm, 4.75mm～9.5 mm, 9.5mm～19 mm and 19mm～31.5
mm.The brick of these four specification mixes class regenerated aggregate and carries out subpackage respectively.
In above-mentioned application, concrete operating procedure includes: described brick first mixes class regenerated aggregate according to intending laying road
Grating require to carry out dispensing, then the brick after dispensing is mixed the mass ratio that class regenerated aggregate and described cementitious matter are by 100: 4～7
Mix homogeneously, is optionally added natural aggregate and obtains compound, then is determined by experiment out aforementioned compound and reaches maximum
Water content ranges during density, then the mix homogeneously that adds water on the basis of this water content ranges, want according to highway bed construction specification
Asking, with construction method mixing such as road-mix method or field mix process, pave and roll dry-mix concrete, then water-preserving curing is to specifying age
Phase.
The technique scheme of the present invention is based primarily upon following principle: mix class regeneration to adapt to have the brick of Dry Shrinkage Performance
Gather materials, the present invention develops a kind of novel and there is certain expansile Binder Materials (i.e. cementitious matter), then by certain
Scientific matching is prepared, and obtains the road basement material that serviceability is good.Technical scheme is expected to be generalized to
The basic unit of high-grade highway applies.
Compared with prior art, it is an advantage of the current invention that: the present invention is proposed the steady material of recycled water of a kind of environmental protection and waste utilization
Material, i.e. exploitation make a kind of novel Binder Materials, and this Binder Materials can make full use of industrial residue, and not only raw material sources are wide
General it is easy to get, and cheap, its strength character is suitable with 32.5 composite Portland cements.When making Freeway, this
The addition of novel inorganic cementitious matter of invention only gathers materials the 4%～7% of dosage, can meet road construction specification to basic unit's property
The requirement of energy.By X diffraction analysis, calcium vitriol containing a large amount of highly crystalline water in the hydrated product of inorganic binder used by the present invention
Stone, therefore its hardenite has expansion characteristics, can effectively offset the drying shrinkage that gathers materials, thus its cracking resistance is better than the silicate cement commonly used
Mud.The hydration mechanism of cementitious matter of the present invention determines the Sulfate corrosion resistance of this kind of Binder Materials can also be better than common silicic acid
Salt cement, also has good prospect with the industrial residue of its cementing high sulfate content with mill tailings paved roads basic unit.
To sum up, technical scheme has maximally utilised solid waste, and particularly brick mixes class building waste, tool
There are environmental protection and waste utilization and cheap economic dispatch feature, the preparation and construction of road basement material have broad application prospects.
Detailed description of the invention
Below in conjunction with concrete preferred embodiment, the invention will be further described, but not thereby limiting the invention
Protection domain.
Embodiment 1:
A kind of mixing class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly by following quality
The component of number is uniformly mixed:
61 parts of slag,
The natural gypsum 10 parts,
Quick lime 20 parts,
7 parts of flyash and
2 parts of sodium sulfate.
In above-mentioned cementitious matter, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, Gypsum Fibrosum, Calx, fine coal
Ash and sodium sulfate are the particulate matter being fully dried and being milled down to conventional cement fineness.
Above-mentioned cementitious matter is applied particularly to preparation and produces road basement material, mix class regenerated aggregate and above-mentioned with brick
The cementitious matter of embodiment is base stock, and mixed preparing produces road basement material.The brick of the present embodiment mixes class regenerated aggregate
The brick collected on removal building site mixes class construction waste crushing and obtains, and this brick mixes in class regenerated aggregate high containing concrete dynamic modulus and water absorption rate
Brick and tile, it is cranny development after broken, and intensity declines, and causes it compared with natural limestone aggregates, has high water absorbing capacity, high pressure
Broken value, high liquid limit index, the relatively feature such as low bulk density and bulk density (seeing table 1).
Table 1: brick mixes class regenerated aggregate and compares with the pavement performance of natural limestone aggregates
| Classification | Bulk density/(g/cm3) | Apparent relative density/(g/cm3) | 1h water absorption rate/% | Liquid limit/% | Plastic limit/% | Crush values/% |
| Brick mixes class regenerated aggregate | 1.29 | 2.57 | 15.2 | 30.2 | 25.9 | 33.2 |
| Natural limestone aggregates | 1.59 | 2.72 | 2.0 | 18.3 | 14.9 | 23.1 |
In the applications described above, concrete operating procedure includes: above-mentioned brick is mixed class building waste and first crushes, in advance
Reject organic waste；When being applied to highway and Class I highway, first the brick after broken processing is mixed class regenerated aggregate and be divided into
Following level Four: 0～4.75 mm, 4.75mm～9.5mm, 9.5mm～19mm and 19mm～31.5 mm.The brick of these four specification mixes
After class regenerated aggregate carries out subpackage respectively, according to the classification of plan laying road, further according to highway JTJ034-2000 " highway pavement
Base Construction Technique specification " in the aggregate grading required by highway and Class I highway is carried out dispensing；According to concrete road
Construction requirement, above-mentioned brick mixes class regenerated aggregate can be directly cementing with the inorganic binder of the present embodiment, it is possible to mixes wherein
After a certain proportion of natural limestone aggregates the most cementing.Such as, prepare at a high speed public when mixing class regenerated aggregate with the brick of the present embodiment
During the cement stabilized macadam base of road and Class I highway, can require to select to mix a certain proportion of natural stone limestone according to crush values
Gather materials, to ensure that the mixed crush values gathered materials is higher than code requirement.The brick of the present embodiment mixes class regenerated aggregate and all uses
Reworked material, without natural aggregate.Brick after dispensing is mixed the quality that the cementitious matter of class regenerated aggregate and the present embodiment is by 100: 6
Ratio mix homogeneously, is optionally added natural aggregate and obtains compound.Every pavement performance of compound can be according to JTG
E51-2009 " highway engineering stabilized with inorganic binder testing of materials code " detects.Maximal density institute is reached with modified compaction test
Optimum moisture content is mixed and is fitted in aforesaid compound, hydrostatic profile test specimen, die trial specification is the cylinder of Φ 150 × 150,
Soak after maintenance 6 d in relative humidity is more than the air of 98 %, temperature 20 DEG C 24 h, surveys its 7d unconfined compressive strength, with 9
The meansigma methods of individual test specimen is as unconfined compression strength test result.7 days full water comprcssive strength of the test specimen recorded in the present embodiment
Average is 4.5 MPa.
Below by way of the adding of proportioning, cementitious matter volume and natural limestone aggregate changing Binder Materials (inorganic binder)
Add ratio, obtain following different preferred embodiment.
Embodiment 2:
A kind of mixing class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly by following quality
The component of number is uniformly mixed:
50 parts of slag,
The natural gypsum 10 parts,
Calx 15 parts,
25 parts of flyash.
In above-mentioned cementitious matter, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, Gypsum Fibrosum, Calx and powder
Coal ash is the particulate matter being fully dried and being milled down to conventional cement fineness.
The cementitious matter of above-mentioned the present embodiment is applied particularly to preparation and produces road basement material, except cementing in preparation method
Material composition of raw materials corresponding with above-mentioned formula outside, remaining material choice, operating procedure, specific experiment condition and technological parameter
Deng, the most same as in Example 1, the 7 days full water comprcssive strength averages of test specimen finally recorded are 4.0 MPa.
Embodiment 3:
A kind of mixing class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly by following quality
The component of number is uniformly mixed:
55 parts of slag,
Desulfurated plaster 15 parts,
Calx 15 parts,
12 parts of flyash and
3 parts of sodium sulfate.
In above-mentioned cementitious matter, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, Gypsum Fibrosum, Calx, fine coal
Ash and sodium sulfate are the particulate matter being fully dried and being milled down to conventional cement fineness.
The cementitious matter of above-mentioned the present embodiment is applied particularly to preparation and produces road basement material, except cementing in preparation method
Material composition of raw materials corresponding with above-mentioned formula outside, remaining material choice, operating procedure, specific experiment condition and technological parameter
Deng, the most same as in Example 1, the 7 days full water comprcssive strength averages of test specimen finally recorded are 3.8MPa.
Embodiment 4:
A kind of mixing class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly by following quality
The component of number is uniformly mixed:
61 parts of slag,
Ardealite 10 parts,
Quick lime 20 parts,
5 parts of flyash and
4 parts of sodium sulfate.
In above-mentioned cementitious matter, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, Gypsum Fibrosum, Calx, fine coal
Ash and sodium sulfate are the particulate matter being fully dried and being milled down to conventional cement fineness.
The cementitious matter of above-mentioned the present embodiment is applied particularly to preparation and produces road basement material, except cementing in preparation method
Material composition of raw materials corresponding with above-mentioned formula outside, remaining material choice, operating procedure, specific experiment condition and technological parameter
Deng, the most same as in Example 1, the 7 days full water comprcssive strength averages of the present embodiment test specimen finally recorded are 4.7MPa.
Embodiment 5:
A kind of mixing class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly by following quality
The component of number is uniformly mixed:
65 parts of slag,
Natural anhydrite 20 parts,
Quick lime 10 parts, and
5 parts of flyash.
In above-mentioned cementitious matter, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, Gypsum Fibrosum, Calx, fine coal
Ash is the particulate matter being fully dried and being milled down to conventional cement fineness.
The cementitious matter of above-mentioned the present embodiment is applied particularly to preparation and produces road basement material, except cementing in preparation method
Material composition of raw materials corresponding with above-mentioned formula outside, the brick of the present embodiment mixes the natural stone limestone including 20% in class regenerated aggregate
Gather materials, remaining material choice, operating procedure, specific experiment condition and technological parameter etc., the most same as in Example 1, finally survey
The 7 days full water comprcssive strength averages of the present embodiment test specimen obtained are 6MPa.
Embodiment 6:
A kind of mixing class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly by following quality
The component of number is uniformly mixed:
53 parts of slag,
The natural gypsum 30 parts,
Quick lime 5 parts,
10 parts of flyash and
2 parts of sodium sulfate.
In above-mentioned cementitious matter, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, Gypsum Fibrosum, Calx, fine coal
Ash and sodium sulfate are the particulate matter being fully dried and being milled down to conventional cement fineness.
The cementitious matter of above-mentioned the present embodiment is applied particularly to preparation and produces road basement material, except cementing in preparation method
Material composition of raw materials corresponding with above-mentioned formula outside, remaining material choice, operating procedure, specific experiment condition and technological parameter
Deng, the most same as in Example 1, the 7 days full water comprcssive strength averages of the present embodiment test specimen finally recorded are 3.7MPa.
Embodiment 7:
A kind of mixing class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly by following quality
The component of number is uniformly mixed:
70 parts of slag,
Natural anhydrite 17 parts,
Calx 8 parts, and
5 parts of flyash.
In above-mentioned cementitious matter, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, Gypsum Fibrosum, Calx, fine coal
Ash is the particulate matter being fully dried and being milled down to conventional cement fineness.
The cementitious matter of above-mentioned the present embodiment is applied particularly to preparation and produces road basement material, except cementing in preparation method
Material composition of raw materials corresponding with above-mentioned formula outside, the brick of the present embodiment mixes the natural stone limestone including 50% in class regenerated aggregate
Gather materials, and the volume of cementitious matter is that brick mixes the 4% of class regenerated aggregate, remaining material choice, operating procedure, specific experiment condition
And technological parameter etc., the most same as in Example 1, the 7 days full water comprcssive strength averages of the present embodiment test specimen finally recorded are
4.0MPa。
Embodiment 8:
A kind of mixing class building waste for brick and prepare the cementitious matter of road basement material, this cementitious matter is mainly by following quality
The component of number is uniformly mixed:
70 parts of slag,
Natural anhydrite 17 parts,
Calx 8 parts, and
5 parts of flyash.
In above-mentioned cementitious matter, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, Gypsum Fibrosum, Calx, fine coal
Ash is the particulate matter being fully dried and being milled down to conventional cement fineness.
The cementitious matter of above-mentioned the present embodiment is applied particularly to preparation and produces road basement material, except cementing in preparation method
Material composition of raw materials corresponding with above-mentioned formula outside, the volume of the cementitious matter of the present embodiment is that brick mixes the 4% of class regenerated aggregate, remaining
Material choice, operating procedure, specific experiment condition and technological parameter etc., the most same as in Example 1, this enforcement that finally records
7 days full water comprcssive strength averages of example test specimen are 2.1MPa.
Comparative example:
Consolidate the brick in the present embodiment with 32.5 composite Portland cements of 4% respectively and mix class regenerated aggregate, corresponding 7 days
Full water comprcssive strength average is 2.2MPa.Show with the comparing result of the various embodiments described above, the cementitious matter used by the present invention with
PC32.5 cement is the most suitable in strength character, the most all can be better than PC32.5 cement.
Claims (5)
1. one kind is mixed class building waste prepare the cementitious matter of road basement material for brick, it is characterised in that described cementitious matter by
The component of following mass fraction is uniformly mixed:
Slag 61～65 parts,
Gypsum Fibrosum 10～30 parts,
Quick lime 10～20 parts,
Flyash 5～10 parts and
Sodium sulfate 0～5 parts；
Described slag is the Water Quenching Slag of blast furnace ironmaking slag making output；Described Gypsum Fibrosum is in the natural gypsum, industry by-product gypsum
Kind or multiple mixture, the mineral facies of the natural gypsum are any one or more in anhydrite, semi-hydrated gypsum, dihydrate gypsum
Mixture；Described sodium sulfate is containing water of crystallization or the sodium sulfate of nodeless mesh water；
Described slag, Gypsum Fibrosum, quick lime, flyash and sodium sulfate be fully be dried and be milled down to conventional cement fineness
Grain thing.
2. the application of a cementitious matter as claimed in claim 1, it is characterised in that: mix class regenerated aggregate with brick cementing with described
Material is base stock, or with industrial residue, mill tailings material and described cementitious matter as base stock, mixed preparing produces
Road basement material.
Application the most according to claim 2, it is characterised in that: it is to be mixed class building waste by brick that described brick mixes class regenerated aggregate
Preparing after crushing, described brick mixes class regenerated aggregate and is screened into following level Four: more than 0 and less than or equal to 4.75 mm,
More than 4.75mm and less than or equal to 9.5 mm, more than 9.5mm and less than or equal to 19 mm, more than 19mm and be less than or equal to
31.5 mm。
Application the most according to claim 3, it is characterised in that: first described brick is mixed class regenerated aggregate according to intending laying road
Grating require to carry out dispensing, then the brick after dispensing is mixed the mass ratio that class regenerated aggregate and described cementitious matter are by 100: 4～7
Mix homogeneously, obtains compound, then is determined by experiment out water content ranges when aforementioned compound reaches maximal density, then with
Add water on the basis of this water content ranges mix homogeneously, finally carries out roller compaction construction water-preserving curing.
Application the most according to claim 4, it is characterised in that: described compound also includes natural aggregate.
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| CN201310227718.XA CN103274613B (en) | 2013-06-08 | 2013-06-08 | Mix class building waste for brick and prepare cementitious matter and the application thereof of road basement material |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278609B (en) * | 2014-07-24 | 2016-01-13 | 北京元泰达环保建材科技有限责任公司 | By road pavements prepared by dregs and slag compound and method thereof |
| CN104278611B (en) * | 2014-07-24 | 2015-11-18 | 北京元泰达环保建材科技有限责任公司 | By road pavements prepared by dregs and agstone compound and method thereof |
| CN104276799B (en) * | 2014-07-24 | 2015-09-09 | 北京元泰达环保建材科技有限责任公司 | Road pavements of a kind of engineering spoil complex building rubbish and preparation method thereof |
| CN104278610B (en) * | 2014-07-24 | 2016-01-13 | 北京元泰达环保建材科技有限责任公司 | A kind of take dregs as road pavements of primary raw material and preparation method thereof |
| CN104119056B (en) * | 2014-07-24 | 2015-06-10 | 北京元泰达环保建材科技有限责任公司 | Road paving material prepared from phosphogypsum composite residues and preparation method thereof |
| CN104591562A (en) * | 2014-08-04 | 2015-05-06 | 湖北文理学院 | Method for using solid waste to prepare regenerated building mortar |
| CN105565693B (en) * | 2015-12-19 | 2018-02-16 | 湖南科技大学 | A kind of preparation method of gypsum composite gelled material |
| CN108117362B (en) * | 2018-01-05 | 2020-04-24 | 湖南云中再生科技股份有限公司 | Construction waste pavement base material and preparation method thereof |
| CN109020430A (en) * | 2018-09-04 | 2018-12-18 | 西安公路研究院 | A kind of construction refuse regenerated mixture of two ash stability and preparation method thereof |
| CN111718720B (en) * | 2020-06-28 | 2022-01-25 | 河南省交通规划设计研究院股份有限公司 | Industrial waste residue soil curing agent and preparation method and construction method thereof |
| CN112341091A (en) * | 2020-11-16 | 2021-02-09 | 北京建工资源循环利用投资有限公司 | Paving brick prepared from construction waste recycled aggregate and preparation process thereof |
| CN112592147B (en) * | 2021-01-24 | 2022-06-24 | 湖南科技大学 | Preparation and construction method of brick-concrete building waste residue regenerated road base inorganic mixture |
| CN113277826A (en) * | 2021-06-15 | 2021-08-20 | 太原钢铁(集团)有限公司 | Method for preparing autoclaved fly ash standard brick by utilizing ceramsite |
| CN113683362A (en) * | 2021-08-31 | 2021-11-23 | 辽宁工程技术大学 | Alkali-activated slag recycled concrete pavement base aggregate and preparation method and construction method thereof |
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| CN101462864A (en) * | 2007-12-21 | 2009-06-24 | 同济大学 | Novel composite gel material and preparation |
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| CN101462864A (en) * | 2007-12-21 | 2009-06-24 | 同济大学 | Novel composite gel material and preparation |
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