CN108751873A - The shield machine synchronous grouting material and preparation method thereof of fine powder is recycled containing building waste - Google Patents
The shield machine synchronous grouting material and preparation method thereof of fine powder is recycled containing building waste Download PDFInfo
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- CN108751873A CN108751873A CN201810913264.4A CN201810913264A CN108751873A CN 108751873 A CN108751873 A CN 108751873A CN 201810913264 A CN201810913264 A CN 201810913264A CN 108751873 A CN108751873 A CN 108751873A
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- fine powder
- building waste
- sand
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- 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
- 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
- C04B28/10—Lime cements or magnesium oxide 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of shield machine synchronous grouting material recycling fine powder containing building waste, are made of following each component：80~140kg/m of cementitious material3, 250~380kg/m of building waste fine powder3, 10~50 kg/m of bentonite3, 710~940 kg/m of sand3, 0.8~1.4kg/m of polycarboxylate water-reducer3, 0.01~1.0kg/m of cellulose ether3, 300~550 kg/m of water3.The sand for screening 2.5mm or more particles is spare；Cementitious material, building waste fine powder, bentonite, cellulase and sand, uniform dry mixing are weighed in proportion；Polycarboxylate water-reducer is weighed, is added to the water uniformly mixed；Aqueous solution is added in powder, uniform stirring obtains the shield machine synchronous grouting material that fine powder is recycled containing building waste.The present invention by building waste fine powder by replacing flyash and part bentonite, both the process problem of dust during building waste recycles can have been solved, the problem of quality of fly ash is bad or resource lacks can be solved again, while can guarantee the quality of grout material, it is of low cost, environmentally protective.
Description
One, technical field：
The present invention relates to a kind of shield machine synchronous grouting material and preparation method thereof recycling fine powder containing building waste, belong to building rubbish
Rubbish recycling treatment and utilize technical field.
Two, background technology：
With the quickening of Process of Urbanization Construction, removal, transformation of original In-Situ HPGe γ Spectrometry etc. produce a large amount of building waste, such as：It is discarded
Concrete ground-slag, rock ballast, waste wood etc., wherein concrete, brick, exterior insulation give up cystosepiment etc. in building waste about
40%-60% is accounted for, currently processed method generally uses air storage or landfill, both methods not only waste of resource, destruction life
State environment, and the land resource that people depend on for existence is occupied, construction refuse resource, which is handled and utilized, has become the great of society
Project.
Current construction refuse regenerated using current hotspot research topic is had become, green circulatory, which utilizes, has become being total to for society
Know.After construction waste crushing, the differences such as manufactured 1-3mm, 3-5mm, 5-10mm, 10-20mm, 20-30mm after screening, classification
The recycled aggregate of grade can be used for concrete, brickmaking, the steady material of water etc..But pass through because of dust removal requirement in broken, screening process
The fine powder of dust-precipitator recycling can not then be recycled.It is construction waste crushing regeneration process that building waste, which recycles fine powder,
In gather dust after product, yield is about the 13% of building waste treating capacity, in this dust most of particles be brick powder, also
The concrete powder of fraction.And also there is the meaning extremely required to the recycling of the powder of this part.
Synchronous grouting refer to tunneling shield propelling construction synchronize carry out a kind of grouting process for filling shield tail gap.
Mortar for slip casting is known as synchronous grouting dedicated mortar.Synchronous grouting material is to control tunnel stabilization, resistance soil deformation, raising
Tunnel water proofing plays an important role.Synchronous grouting material is the key that grouting process success or failure, is related to cost, the construction control of slip casting
System, the quality of slip casting effect and tunnel.Country's synchronous grouting material generally has single slurry and dual slurry at present.Single slurry is by a kind of slurry
Liquid forms, and after stirring in advance, injects shield tail, construction is simple by pipeline all the way, but require the workability of slurries high.It is double
Slurry is usually the A liquid being made of cement, bentonite, stabilizer etc. and is made of the B liquid based on waterglass, shadow during slip casting
The factor of sound is more, and control difficulty is big.All kinds of synchronous grouting materials respectively have advantage and disadvantage, effect to differ, and to the control of tunnel upward floating
Effect is also not quite similar.
The formula of existing synchronous grouting mortar has the quality of flyash with sand and flyash for main composition material
High requirement, and being widely used on building materials with flyash, fly ash are also more in short supply, quality also declines therewith.
It is difficult to meet the requirement of existing synchronous grouting dedicated mortar if the quality of the ground part such as Yunnan, Guizhou flyash.Rubbish will be built
Rubbish recycles the production that fine powder is used for synchronous grouting material, then can not only reduce building waste dust emission, can also meet few
With or without fine coal requirement.
Domestic partial monopoly has reported the production technology of synchronous grouting material at present.Such as：A kind of shield synchronization slip casting
Construction method and construction material（ZL：201410269820.0）The main production technology and construction method for describing biliquid slurry.
A kind of novel anti-shearing synchronous grouting dedicated mortar and preparation method thereof（ZL：201210234515.9）Then use single-fluid process into
Row synchronous grouting, and replace flyash to synchronize the production of injecting paste material with slag powders.It is a kind of using shield tailings prepare
Early strength micro expansion synchronous grouting material and preparation method thereof（ZL：201310322226.9）It then describes shield tailings and replaces tradition
River sand synchronizes the production of injecting paste material.From the point of view of the production technology of domestic published synchronous grouting material, they all do not have
There is the building waste fine powder to gathering dust in building waste processing procedure to be utilized for producing synchronous grouting material, there is not yet phase
Close report.
Three, invention content：
The technical problem to be solved by the present invention is to：Overcome the prior art in building waste recycle fine powder material can not utilize, nothing
The problem of method processing, provides a kind of shield machine synchronous grouting material and preparation method thereof recycling fine powder containing building waste, will build
Prepared by production of the garbage reclamation fine powder for shield synchronization slip casting material, to replace the flyash in shield synchronization slip casting and swelling
Soil can improve the stability and mobility of synchronous grouting material, reduce cost, environmental protection.
The present invention is that the technical solution adopted for solving the technical problem is as follows：
A kind of shield machine synchronous grouting material recycling fine powder containing building waste, is made of following each component：
80~140kg/m of cementitious material3
250~380kg/m of building waste fine powder3
10~50 kg/m of bentonite3
710~940 kg/m of sand3
0.8~1.4kg/m of polycarboxylate water-reducer3
0.01~1.0kg/m of cellulose ether3
300~550 kg/m of water3
The cementitious material is common portland cement or slaked lime powder, and fineness 0.08mm is tailed over less than 10%；
The building waste fine powder be construction waste crushing regeneration process in gather dust after fine powder, fineness 0.08mm,
It tails over and is less than 45%；
The bentonite is sodium bentonite or calcium-base bentonite；
The sand is natural fine sand or reclaimed sand of the fineness modulus in 1.0~2.0 ranges；
The polycarboxylate water-reducer is polyether type of poly carboxylic acid；
The cellulose ether is hydroxypropyl methyl cellulose ether, and viscosity is 75000~150000；
The water is industrial tap water.
The preparation method of the shield machine synchronous grouting material recited above that fine powder is recycled containing building waste, specific steps are such as
Under：
（1）By sand by the sieve that sieve diameter is 2.5mm, the particle for screening out 2.5mm or more is spare；
（2）Cementitious material, building waste fine powder, bentonite, cellulose ether, sand are weighed in proportion, and dry mixing 10~20 seconds,
Obtain powder A；
（3）Polycarboxylate water-reducer is weighed in proportion, is added to the water uniformly mixed, obtains aqueous solution B；
（4）Aqueous solution B is added in powder A, uniform stirring 60~120 seconds obtains the shield machine that fine powder is recycled containing building waste
Synchronous grouting material.
The performance indicator of the shield machine synchronous grouting material that fine powder is recycled containing building waste is as follows：
Gelling time：3~10h；
Concretion body strength：It is not less than within one day 0.2MPa, is not less than 2.5MPa within 28 days；
Slurries calculus rate：More than 95%, that is, consolidates shrinking percentage and be less than 5%；
Slurry consistency：8~12cm；
Pulp stability：Decantation rate, that is, the ratio between floating water volume and total volume after staticly settling are less than 5%.
The present invention is made a kind of novel containing building by the way that building waste fine powder is replaced flyash and part bentonite
The subway shield synchronous grouting material of rubbish fine powder can not only solve the process problem of dust during building waste recycles, but also can
The problem of quality of fly ash is bad or resource lacks is solved, ensures the quality of grout material, and cost is more compared to traditional grout material
It is cheap, environmentally protective.
The present invention recycles the shield machine synchronous grouting material of fine powder containing building waste, has good mobility, water-retaining property, glues
Poly- property is being stored with transportational process, and slurries can keep certain workability, uniformity and good workability.Slurries pass through
Piping slip casting enters the gap between section of jurisdiction and shield shell to shield tail, can preferably fill gap, and slurries are fully wrapped around to live to manage
Piece forms protective layer, is effectively prevented the floating of section of jurisdiction, keeps the stabilization in tunnel.
The invention belongs to field of construction waste recycling technology, for compare flyash and bentonite（It is shown in Table 1）, save
Resource, and building waste dust recycled, environment is protected, also having a clear superiority economically, is building materials
Good impetus is played in greenization work.
1 conventional synchronization grout material of table material wet end furnish synchronous with building waste
| Proportioning | Cement（kg） | Flyash（kg） | Bentonite（kg） | Building waste fine powder（kg） | Sand（kg） | Water（kg） | Polycarboxylate water-reducer（kg） | Hydroxypropyl methyl cellulose ether（kg） |
| Conventional synchronization grout material | 80~140 | 381~241 | 60~50 | 0 | 710~ 934 | 460~ 470 | It is added on demand according to experiment | It is added on demand according to experiment |
| Building waste synchronous grouting material | 80~140 | 0 | 0 | 250~380 | 710~ 940 | 300~ 550 | 0.8~1.4 | 0.01~1.0 |
Four, specific implementation mode：
With reference to specific embodiment, technical solution of the present invention will be further described.
Embodiment 1：
Synchronous grouting material uses 42.5 Portland cement 80kg, building waste fine powder 250kg, 10 kg of sodium bentonite, day
Right fine sand 710kg, polycarboxylate water-reducer 0.8kg, hydroxypropyl methyl cellulose ether 0.01kg, industrial tap water 300
kg。
Experimental result：A, consistency：115 mm；B, water retention：93%；C, for 24 hours after 0.3MPa；D, 7d intensity：0.8MPa；e,
28d intensity：2.9 MPa；F, shrinking percentage 5% is consolidated；G, decantation rate:3%.
Embodiment 2：
Synchronous grouting material uses 42.5 Portland cement 140kg, building waste fine powder 380kg, 50 kg of calcium-base bentonite,
Reclaimed sand 940kg, polycarboxylate water-reducer 1.4kg, hydroxypropyl methyl cellulose ether 0.1kg, industrial tap water 450
kg。
Experimental result：A, consistency：120mm；B, water retention: 90%；C, for 24 hours after 0.57 MPa；D, 7d intensity：
1.22MPa；E, 28d intensity：3.56 MPa；F, shrinking percentage 3% is consolidated；G, decantation rate:2%.
Embodiment 3：
Synchronous grouting material uses slaked lime powder 140kg, building waste fine powder 250kg, 50 kg of sodium bentonite, natural fine sand
710kg, polycarboxylate water-reducer 1.4kg, hydroxypropyl methyl cellulose ether 0.1kg, 450 kg of industrial tap water.
Experimental result：A, consistency：90 mm；B, water retention: 95%；C, for 24 hours after 0.27 MPa；D, 7d intensity：
0.62MPa；E, 28d intensity：2.82 MPa；F, shrinking percentage 2% is consolidated；G, decantation rate:2%.
Embodiment 4：
Synchronous grouting material uses slaked lime powder 80kg, building waste fine powder 380kg, 50 kg of calcium-base bentonite, reclaimed sand
940kg, polycarboxylate water-reducer 1.0kg, hydroxypropyl methyl cellulose ether 0.5kg, 360 kg of industrial tap water.
Experimental result：A, consistency：100 mm；B, water retention: 93%；C, for 24 hours after 0.27 MPa；D, 7d intensity：
0.62MPa；E, 28d intensity：2.82 MPa；F, shrinking percentage 3% is consolidated；G, decantation rate:2%.
Embodiment 5：
Synchronous grouting material uses 42.5 Portland cement 100kg, building waste fine powder 300kg, sodium bentonite 20kg,
Natural fine sand 760kg, 1.2 kg of polycarboxylate water-reducer, 0.2 kg of hydroxypropyl methyl cellulose ether, industrial tap water 400
kg。
Experimental result：A, consistency：100 mm；B, water retention: 93%；C, for 24 hours after 0.27 MPa；D, 7d intensity：
0.74MPa；E, 28d intensity：3.22 MPa；F, shrinking percentage 4% is consolidated；G, decantation rate:2%.
Embodiment 6：
Synchronous grouting material uses slaked lime powder 80kg, building waste fine powder 380kg, 50 kg of calcium-base bentonite, reclaimed sand
850kg, polycarboxylate water-reducer 1.0kg, hydroxypropyl methyl cellulose ether 0.5kg, 360 kg of industrial tap water.
Experimental result：A, consistency：100 mm；B, water retention: 93%；C, for 24 hours after 0.27 MPa；D, 7d intensity：
0.84MPa；E, 28d intensity：2.94 MPa；F, shrinking percentage 3% is consolidated；G, decantation rate:3%.
Claims (3)
1. a kind of shield machine synchronous grouting material recycling fine powder containing building waste, which is characterized in that be made of following each component：
80~140kg/m of cementitious material3
250~380kg/m of building waste fine powder3
10~50 kg/m of bentonite3
710~940 kg/m of sand3
0.8~1.4kg/m of polycarboxylate water-reducer3
0.01~1.0kg/m of cellulose ether3
300~550 kg/m of water3
The cementitious material is common portland cement or slaked lime powder, and fineness 0.08mm is tailed over less than 10%；
The building waste fine powder be construction waste crushing regeneration process in gather dust after fine powder, fineness 0.08mm,
It tails over and is less than 45%；
The bentonite is sodium bentonite or calcium-base bentonite；
The sand is natural fine sand or reclaimed sand of the fineness modulus in 1.0~2.0 ranges；
The polycarboxylate water-reducer is polyether type of poly carboxylic acid；
The cellulose ether is hydroxypropyl methyl cellulose ether, and viscosity is 75000~150000；
The water is industrial tap water.
2. the preparation method of the shield machine synchronous grouting material described in claim 1 for recycling fine powder containing building waste, specific to walk
It is rapid as follows：
（1）By sand by the sieve that sieve diameter is 2.5mm, the particle for screening out 2.5mm or more is spare；
（2）Cementitious material, building waste fine powder, bentonite, cellulose ether, sand are weighed in proportion, and dry mixing 10~20 seconds,
Obtain powder A；
（3）Polycarboxylate water-reducer is weighed in proportion, is added to the water uniformly mixed, obtains aqueous solution B；
（4）Aqueous solution B is added in powder A, uniform stirring 60~120 seconds obtains the shield machine that fine powder is recycled containing building waste
Synchronous grouting material.
3. the preparation method of the shield machine synchronous grouting material according to claim 2 for recycling fine powder containing building waste, special
Sign is that the performance indicator of the shield machine synchronous grouting material that fine powder is recycled containing building waste is as follows：
Gelling time：3~10h；
Concretion body strength：It is not less than within one day 0.2MPa, is not less than 2.5MPa within 28 days；
Slurries calculus rate：More than 95%, that is, consolidates shrinking percentage and be less than 5%；
Slurry consistency：8~12cm；
Pulp stability：Decantation rate, that is, the ratio between floating water volume and total volume after staticly settling are less than 5%.
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Cited By (6)
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| CN110437812A (en) * | 2019-08-28 | 2019-11-12 | 中铁隧道局集团有限公司 | A kind of shield warehouse entry slurries with pressure and preparation method thereof |
| CN110510958A (en) * | 2019-09-27 | 2019-11-29 | 杭州临安正翔建材有限公司 | A kind of subway filling mortar based on building waste |
| CN111875289A (en) * | 2020-07-23 | 2020-11-03 | 济南城建集团有限公司 | Application of asphalt station recycled powder in shield construction |
| CN112321236A (en) * | 2020-11-19 | 2021-02-05 | 石家庄金隅混凝土有限公司 | High-stability premixed synchronous grouting material |
| CN115029113A (en) * | 2022-05-09 | 2022-09-09 | 北京建筑材料科学研究总院有限公司 | Premixed shield grouting material, shield grouting slurry and application thereof |
| CN116217137A (en) * | 2022-12-21 | 2023-06-06 | 中铁隧道局集团有限公司 | Low-carbon resource utilization type shield inert synchronous grouting material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110437812A (en) * | 2019-08-28 | 2019-11-12 | 中铁隧道局集团有限公司 | A kind of shield warehouse entry slurries with pressure and preparation method thereof |
| CN110510958A (en) * | 2019-09-27 | 2019-11-29 | 杭州临安正翔建材有限公司 | A kind of subway filling mortar based on building waste |
| CN111875289A (en) * | 2020-07-23 | 2020-11-03 | 济南城建集团有限公司 | Application of asphalt station recycled powder in shield construction |
| CN111875289B (en) * | 2020-07-23 | 2021-11-16 | 济南城建集团有限公司 | Application of asphalt station recycled powder in shield construction |
| CN112321236A (en) * | 2020-11-19 | 2021-02-05 | 石家庄金隅混凝土有限公司 | High-stability premixed synchronous grouting material |
| CN115029113A (en) * | 2022-05-09 | 2022-09-09 | 北京建筑材料科学研究总院有限公司 | Premixed shield grouting material, shield grouting slurry and application thereof |
| CN116217137A (en) * | 2022-12-21 | 2023-06-06 | 中铁隧道局集团有限公司 | Low-carbon resource utilization type shield inert synchronous grouting material and preparation method thereof |
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