CN103274613A - Cementing material for preparing road base material through using brick and concrete building wastes, and application thereof - Google Patents
Cementing material for preparing road base material through using brick and concrete building wastes, and application thereof Download PDFInfo
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- CN103274613A CN103274613A CN201310227718XA CN201310227718A CN103274613A CN 103274613 A CN103274613 A CN 103274613A CN 201310227718X A CN201310227718X A CN 201310227718XA CN 201310227718 A CN201310227718 A CN 201310227718A CN 103274613 A CN103274613 A CN 103274613A
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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
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Abstract
The invention discloses a cementing material for preparing a road base material through using brick and concrete building wastes. The cementing material is obtained through uniformly mixing 50-70 parts by mass of slag, 10-30 parts by mass of gypsum, 5-20 parts by mass of lime, 5-25 parts by mass of fly ash and 0-5 parts by mass of sodium sulfate. When the cementing material is applied, regenerated brick and concrete aggregates and the cementing material, or industrial slag, a mine tailing material and the cementing material are used as basic raw materials, and are mixed to prepare the road base material. The advantages comprising environmental protection, waste utilization, cheapness, economy and the like are possessed in the invention.
Description
Technical field
The invention belongs to architecture engineering material and Application Areas thereof, relate in particular to agglutinate and concrete application the thereof in a kind of road basement material.
Background technology
Quick propelling along with Chinese Urbanization has produced a large amount of building wastes, and these building wastes not only occupy cultivated land, and contaminate environment.Effectively handle building waste, turn waste into wealth, become the vital task of construction " beautiful China ".Building waste can be divided into coagulation great soil group rubbish by its main effective constituent and brick mixes class rubbish.Among the former is promoting for regeneration concrete as gathering materials; The latter still fails in the effective recycling in other field except being used for backfill and production building block.The develop rapidly that highway in China is built is scarce, and the demand of road construction road pavement base material is huge.The basic unit of motorway and high-grade municipal highway adopts cement stabilized macadam usually, and rubble wherein then often adopts the graded broken stone of natural rock fragmentation.Brick mixes class regeneration aggregate replacement natural aggregate and is applied to high-grade road foundation course, will be that brick is mixed the important channel that the class building waste effectively digests and mass-producing utilizes, and the while also can be saved natural resource, protection environment and be reduced cost.
CN101545234A Chinese patent literature and CN102390956A Chinese patent literature disclose and have adopted the glued grating brick of the transformed silicate cement based cementitious material of different methods to mix the technical scheme that the class regeneration aggregate prepares roadbase, for example the CN102390956A Chinese patent literature discloses a kind of sub-surface of discarded cement stabilized macadam regeneration, and it waits to prepare road basement material by rubble, cement, nucleocapsid latex, the nano core-shell rubber particles that adopts different gradation; The CN102951880A Chinese patent literature then only utilizes in the building waste particle diameter at the aggregate of 0.20 mm～20 mm, and need it is carried out roasting with the preparation roadbase, the CN101698578A Chinese patent literature then is to substitute artificial rubble with the part building waste to prepare roadbase.The basic gelling material that adopts in the existing patent documentation is common silicate cement, as everyone knows, silicate cement is because the self-constriction of when sclerosis is serious, with it during as the glued rubble making of inorganic binder roadbase, because volume has only 4%～6%(mass ratio usually), this shrinkage influence to roadbase is less.Yet brick mixes class regeneration aggregate crack and micropore is grown, and water-absorbent is strong, and drying shrinkage is serious, and when when having inotropic silicate cement as consolidating material equally, this will increase the risk in roadbase generation crack greatly.Make it be adapted to glued regenerated aggregate if silicate cement is carried out modification, will increase the popularization of cost so that influence technique greatly.Therefore, be necessary to develop a kind of new gelling material in this area with for the preparation of roadbase.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of fill a prescription simple, cost is low, environmental protection and waste utilization, the cheap economic brick that is used for mix the agglutinate that the class building waste prepares road basement material, also correspondingly provides a kind of this agglutinate in the concrete application for preparing on the road basement material.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is a kind ofly to mix the agglutinate that the class building waste prepares road basement material for brick, and described agglutinate is mainly evenly mixed by the component of following mass fraction:
50～70 parts in slag,
10～30 parts in gypsum,
5～20 parts in lime,
5～25 parts in flyash and
0～5 part in sodium sulfate.
In the above-mentioned agglutinate, described slag is preferably the Water Quenching Slag of blast furnace ironmaking slag making output; Described gypsum is preferably one or more the mixture in the plaster of paris, the industry by-product gypsum, and the mineral facies of the plaster of paris are any one or the multiple mixture in anhydrite, semi-hydrated gypsum, the dihydrate gypsum; Described lime is unslaked lime and/or slaked lime; Described flyash refers generally to the gleanings that coal-burning power plant's smokestack is discharged dust; Described sodium sulfate is the sodium sulfate that contains crystal water or do not have crystal water, can be various natural and/or artificial, be the solid of main chemical constitution with sodium sulfate.
In the above-mentioned agglutinate, described slag, gypsum, lime, flyash and sodium sulfate are abundant drying and are milled down to the particulate matter (particle diameter is preferably less than 40 μ m) of cement fineness commonly used.
As a total technical conceive, the present invention also provides a kind of application of above-mentioned agglutinate, and this application comprises: mixing the class regenerated aggregate with brick is basic raw material with above-mentioned agglutinate, mixed preparing production road basement material; Can also industrial residue, material such as mill tailings is basic raw material with above-mentioned agglutinate, mixed preparing production road basement material.
In the above-mentioned application, it is to mix the class building waste by brick to prepare after fragmentation that described brick mixes the class regenerated aggregate, and brick mixes the class regenerated aggregate and generally needs to reject in advance organic waste; When being applied to motorway and Class I highway, described brick mixes the class regenerated aggregate and 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 kinds of specifications mixes the class regenerated aggregate and carries out packing respectively.
In the above-mentioned application, concrete operation steps comprises: earlier described brick is mixed the class regenerated aggregate and require to prepare burden according to the grating of intending laying road, the mixed class regenerated aggregate of brick after will preparing burden then and described agglutinate mix by 100: 4～7 mass ratio, optionally add natural aggregate and obtain compound, water content ranges when being determined by experiment out aforementioned compound again and reaching maximum density, be that benchmark adds water and mixes with this water content ranges again, according to the requirement of highway subgrade job specifications, mix constructional method mixing such as method with road-mix method or field, pave and roll dry-mix concrete, water-preserving curing is to regulation length of time then.
Technique scheme of the present invention is mainly based on following principle: mix the class regenerated aggregate in order to adapt to the brick with drying shrinkage characteristic, developed a kind of novel and have certain expansile gelling material (being agglutinate) among the present invention, prepare by certain scientific matching again, obtain the good road basement material of use properties.The basic unit that technical scheme of the present invention is expected to be generalized to high-grade highway uses.
Compared with prior art, the invention has the advantages that: the present invention has released a kind of steady material of reuse water of environmental protection and waste utilization, i.e. exploitation makes a kind of novel gelling material, this gelling material can take full advantage of industrial residue, not only raw material sources extensively are easy to get, and cheap, its strength property is suitable with 32.5 composite Portland cements.When making motorway basic unit, the addition of novel inorganic agglutinate of the present invention only for gathering materials 4%～7% of dosage, can satisfy the road construction standard to basic unit's performance demands.By the X diffraction analysis, contain the ettringite of a large amount of high crystal water in the hydrated product of the used inorganic binder of the present invention, so its hardenite has expansion characteristics, can effectively offset the drying shrinkage that gathers materials, thereby its resistance to cleavage silicate cement of being better than using always.The hydration mechanism of agglutinate of the present invention has determined the anti-sulphates corrosive performance of this kind gelling material also to be better than common silicate cement, with industrial residue and the mill tailings making roadbase of its glued high-sulfate content good prospect is arranged also.
To sum up, technical scheme of the present invention has maximally utilised solid waste, and particularly brick mixes the class building waste, has environmental protection and waste utilization and cheap economic dispatch characteristics, has broad application prospects in preparation and the construction of road basement material.
Embodiment
Below in conjunction with concrete preferred embodiment the present invention is further described, but protection domain not thereby limiting the invention.
Embodiment 1:
A kind ofly mix the agglutinate that the class building waste prepares road basement material for brick, this agglutinate is mainly evenly mixed by the component of following mass fraction:
61 parts in slag,
10 parts of the plasters of paris,
20 parts of unslaked limes,
7 parts in flyash and
2 parts in sodium sulfate.
In the above-mentioned agglutinate, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, gypsum, lime, flyash and sodium sulfate are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
Above-mentioned agglutinate specifically is applied to preparation produces road basement material, the agglutinate that mixes class regenerated aggregate and above-mentioned present embodiment with brick is basic raw material, and mixed preparing is produced road basement material.The brick of present embodiment mixes the class regenerated aggregate and gets for the brick of collecting on the removal building site mixes the class construction waste crushing, this brick mixes in the class regenerated aggregate and contains porous crack and the high brick and tile of water-intake rate, it is cranny development after fragmentation, strength degradation, cause it to compare with natural limestone aggregates, have high water absorbing capacity, high crush value, high liquid limit index, than characteristics such as low bulk density and tap density (referring to table 1).
Table 1: the pavement performance that brick mixes class regenerated aggregate and natural limestone aggregates compares
| Classification | Tap density/(g/cm3) | Apparent relative density/(g/cm3) | 1h water-intake rate/% | Liquid limit/% | Plastic limit/% | Crush values/% |
| Brick mixes the 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 above-mentioned application, concrete operation steps comprises: above-mentioned brick is mixed the class building waste carry out fragmentation earlier, reject organic waste in advance; When being applied to motorway and Class I highway, earlier the brick after the fragmentation processing being mixed the 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.After the mixed class regenerated aggregate of the brick of these four kinds of specifications carries out packing respectively, according to the classification of intending laying road, again according among the highway JTJ034-2000 " highway road surface construction technique normalizing " motorway and the desired aggregate grading of Class I highway being prepared burden; According to the construction requirement of concrete road, above-mentioned brick mixes the class regenerated aggregate can be directly with the inorganic binder gluing of present embodiment, also can mix behind a certain proportion of natural limestone aggregates glued more therein.For example, when preparing the cement stabilized macadam base of motorway and Class I highway with the mixed class regenerated aggregate of the brick of present embodiment, can require to select to mix a certain proportion of natural limestone aggregates according to crush values, be higher than code requirement to guarantee mixed crush values of gathering materials.The brick of present embodiment mixes the class regenerated aggregate and all adopts reworked material, does not add natural aggregate.The agglutinate that brick after the batching is mixed class regenerated aggregate and present embodiment mixes by 100: 6 mass ratio, optionally adds natural aggregate and obtains compound.Every pavement performance of compound can detect according to JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials rules ".Reaching maximum density gained optimum moisture content with modified compaction test mixes and is fitted in the aforesaid compound, the hydrostatic profile test specimen, the die trial specification is the right cylinder of Φ 150 * 150, relative humidity greater than the air of 20 ℃ of 98 %, temperature in immersion 24 h behind maintenance 6 d, survey its 7d unconfined compression strength, with the mean value of 9 test specimens as the unconfined compressive strenght test result.7 days full water ultimate compression strength averages of the test specimen that records in the present embodiment are 4.5 MPa.
Below pass through the adding proportion of proportioning, agglutinate volume and the natural limestone aggregate of change gelling material (inorganic binder), obtain following different preferred embodiment.
Embodiment 2:
A kind ofly mix the agglutinate that the class building waste prepares road basement material for brick, this agglutinate is mainly evenly mixed by the component of following mass fraction:
50 parts in slag,
10 parts of the plasters of paris,
15 parts of white limes,
25 parts in flyash.
In the above-mentioned agglutinate, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, gypsum, lime and flyash are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
The agglutinate of above-mentioned present embodiment specifically is applied to preparation production road basement material, the composition of raw materials of agglutinate is with above-mentioned prescription is corresponding in the preparation method, remaining material choice, operation steps, concrete experiment condition and processing parameter etc., all identical with embodiment 1,7 days full water ultimate compression strength averages of the test specimen that records at last are 4.0 MPa.
Embodiment 3:
A kind ofly mix the agglutinate that the class building waste prepares road basement material for brick, this agglutinate is mainly evenly mixed by the component of following mass fraction:
55 parts in slag,
15 parts of desulfurated plasters,
15 parts of white limes,
12 parts in flyash and
3 parts in sodium sulfate.
In the above-mentioned agglutinate, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, gypsum, lime, flyash and sodium sulfate are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
The agglutinate of above-mentioned present embodiment specifically is applied to preparation production road basement material, the composition of raw materials of agglutinate is with above-mentioned prescription is corresponding in the preparation method, remaining material choice, operation steps, concrete experiment condition and processing parameter etc., all identical with embodiment 1,7 days full water ultimate compression strength averages of the test specimen that records at last are 3.8MPa.
Embodiment 4:
A kind ofly mix the agglutinate that the class building waste prepares road basement material for brick, this agglutinate is mainly evenly mixed by the component of following mass fraction:
61 parts in slag,
10 parts of phosphogypsums,
20 parts of unslaked limes,
5 parts in flyash and
4 parts in sodium sulfate.
In the above-mentioned agglutinate, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, gypsum, lime, flyash and sodium sulfate are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
The agglutinate of above-mentioned present embodiment specifically is applied to preparation production road basement material, the composition of raw materials of agglutinate is with above-mentioned prescription is corresponding in the preparation method, remaining material choice, operation steps, concrete experiment condition and processing parameter etc., all identical with embodiment 1,7 days full water ultimate compression strength averages of the present embodiment test specimen that records at last are 4.7MPa.
Embodiment 5:
A kind ofly mix the agglutinate that the class building waste prepares road basement material for brick, this agglutinate is mainly evenly mixed by the component of following mass fraction:
65 parts in slag,
20 parts of natural anhydrites,
10 parts of unslaked limes and
5 parts in flyash.
In the above-mentioned agglutinate, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, gypsum, lime, flyash are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
The agglutinate of above-mentioned present embodiment specifically is applied to preparation production road basement material, the composition of raw materials of agglutinate is with above-mentioned prescription is corresponding in the preparation method, the brick of present embodiment mixes in the class regenerated aggregate and includes 20% natural limestone aggregates, remaining material choice, operation steps, concrete experiment condition and processing parameter etc., all identical with embodiment 1,7 days full water ultimate compression strength averages of the present embodiment test specimen that records at last are 6MPa.
Embodiment 6:
A kind ofly mix the agglutinate that the class building waste prepares road basement material for brick, this agglutinate is mainly evenly mixed by the component of following mass fraction:
53 parts in slag,
30 parts of the plasters of paris,
5 parts of unslaked limes,
10 parts in flyash and
2 parts in sodium sulfate.
In the above-mentioned agglutinate, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, gypsum, lime, flyash and sodium sulfate are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
The agglutinate of above-mentioned present embodiment specifically is applied to preparation production road basement material, the composition of raw materials of agglutinate is with above-mentioned prescription is corresponding in the preparation method, remaining material choice, operation steps, concrete experiment condition and processing parameter etc., all identical with embodiment 1,7 days full water ultimate compression strength averages of the present embodiment test specimen that records at last are 3.7MPa.
Embodiment 7:
A kind ofly mix the agglutinate that the class building waste prepares road basement material for brick, this agglutinate is mainly evenly mixed by the component of following mass fraction:
70 parts in slag,
17 parts of natural anhydrites,
8 parts of white limes and
5 parts in flyash.
In the above-mentioned agglutinate, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, gypsum, lime, flyash are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
The agglutinate of above-mentioned present embodiment specifically is applied to preparation production road basement material, the composition of raw materials of agglutinate is with above-mentioned prescription is corresponding in the preparation method, the brick of present embodiment mixes in the class regenerated aggregate and includes 50% natural limestone aggregates, and the volume of agglutinate is 4% of the mixed class regenerated aggregate of brick, remaining material choice, operation steps, concrete experiment condition and processing parameter etc., all identical with embodiment 1,7 days full water ultimate compression strength averages of the present embodiment test specimen that records at last are 4.0MPa.
Embodiment 8:
A kind ofly mix the agglutinate that the class building waste prepares road basement material for brick, this agglutinate is mainly evenly mixed by the component of following mass fraction:
70 parts in slag,
17 parts of natural anhydrites,
8 parts of white limes and
5 parts in flyash.
In the above-mentioned agglutinate, slag is the Water Quenching Slag of blast furnace ironmaking slag making output.Above-mentioned slag, gypsum, lime, flyash are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
The agglutinate of above-mentioned present embodiment specifically is applied to preparation production road basement material, the composition of raw materials of agglutinate is with above-mentioned prescription is corresponding in the preparation method, the volume of the agglutinate of present embodiment is 4% of the mixed class regenerated aggregate of brick, remaining material choice, operation steps, concrete experiment condition and processing parameter etc., all identical with embodiment 1,7 days full water ultimate compression strength averages of the present embodiment test specimen that records at last are 2.1MPa.
Comparative Examples:
Mix the class regenerated aggregate with the brick in 4% the fixed present embodiment of 32.5 composite Portland cements respectively, 7 days corresponding full water ultimate compression strength averages are 2.2MPa.Show that with the comparing result of the various embodiments described above the agglutinate that the present invention is used and PC32.5 cement are suitable at least substantially on strength property, generally all can be better than PC32.5 cement.
Claims (6)
1. one kind is used for the agglutinate that the mixed class building waste of brick prepares road basement material, it is characterized in that described agglutinate is mainly evenly mixed by the component of following mass fraction:
50～70 parts in slag,
10～30 parts in gypsum,
5～20 parts in lime,
5～25 parts in flyash and
0～5 part in sodium sulfate.
2. agglutinate according to claim 1 is characterized in that, described slag is the Water Quenching Slag of blast furnace ironmaking slag making output; Described gypsum is one or more the mixture in the plaster of paris, the industry by-product gypsum, and the mineral facies of the plaster of paris are any one or the multiple mixture in anhydrite, semi-hydrated gypsum, the dihydrate gypsum; Described lime is unslaked lime and/or slaked lime; Described sodium sulfate is the sodium sulfate that contains crystal water or do not have crystal water.
3. agglutinate according to claim 1 and 2 is characterized in that, described slag, gypsum, lime, flyash and sodium sulfate are abundant drying and are milled down to the particulate matter of cement fineness commonly used.
4. application as each described agglutinate in the claim 1～3, it is characterized in that: mix the class regenerated aggregate and described agglutinate is basic raw material with brick, be basic raw material with industrial residue, mill tailings material and described agglutinate perhaps, mixed preparing is produced road basement material.
5. application according to claim 4, it is characterized in that: it is to mix the class building waste by brick to prepare after fragmentation that described brick mixes the class regenerated aggregate, and described brick mixes the class regenerated aggregate and is screened into following level Four: 0～4.75 mm, 4.75mm～9.5 mm, 9.5mm～19 mm and 19mm～31.5 mm.
6. application according to claim 5, it is characterized in that: earlier described brick is mixed the class regenerated aggregate and require to prepare burden according to the grating of intending laying road, the mixed class regenerated aggregate of brick after will preparing burden then and described agglutinate mix by 100: 4～7 mass ratio, optionally add natural aggregate and obtain compound, water content ranges when being determined by experiment out aforementioned compound again and reaching maximum density, be that benchmark adds water and mixes with this water content ranges again, carry out roller compaction construction and water-preserving curing at last.
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| CN104119056A (en) * | 2014-07-24 | 2014-10-29 | 新奥生态建材有限公司 | Road paving material prepared from phosphogypsum composite residues and preparation method thereof |
| CN104278610A (en) * | 2014-07-24 | 2015-01-14 | 北京奥润开元环保科技研究院有限公司 | Road pavement material taking residue soil as main raw material and preparation method of road pavement material |
| CN104278609A (en) * | 2014-07-24 | 2015-01-14 | 北京奥润开元环保科技研究院有限公司 | Road pavement material prepared by compounding residue soil and steel slag and method for preparing road pavement material |
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| CN104278610A (en) * | 2014-07-24 | 2015-01-14 | 北京奥润开元环保科技研究院有限公司 | Road pavement material taking residue soil as main raw material and preparation method of road pavement material |
| CN104278609A (en) * | 2014-07-24 | 2015-01-14 | 北京奥润开元环保科技研究院有限公司 | Road pavement material prepared by compounding residue soil and steel slag and method for preparing road pavement material |
| CN104276799A (en) * | 2014-07-24 | 2015-01-14 | 北京奥润开元环保科技研究院有限公司 | Road paving material compounded from engineering excavation soil and construction waste and preparation method thereof |
| CN104278611A (en) * | 2014-07-24 | 2015-01-14 | 北京奥润开元环保科技研究院有限公司 | Road pavement material prepared by compounding residue soil and limestone powder and method for preparing road pavement material |
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| 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 |
| CN104591562A (en) * | 2014-08-04 | 2015-05-06 | 湖北文理学院 | Method for using solid waste to prepare regenerated building mortar |
| CN105565693A (en) * | 2015-12-19 | 2016-05-11 | 湖南科技大学 | Preparation method of composite gypsum cementing material |
| CN108117362A (en) * | 2018-01-05 | 2018-06-05 | 湖南云中再生科技股份有限公司 | A kind of building waste road surface base layer material and preparation method thereof |
| 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 |
| CN111718720A (en) * | 2020-06-28 | 2020-09-29 | 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 |
| CN112592147A (en) * | 2021-01-24 | 2021-04-02 | 湖南科技大学 | Preparation and construction method of brick-concrete building waste residue regenerated road base inorganic mixture |
| 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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