CN108101484A - / structures reinforcement material is built in a kind of underground - Google Patents
/ structures reinforcement material is built in a kind of underground Download PDFInfo
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- CN108101484A CN108101484A CN201711432660.7A CN201711432660A CN108101484A CN 108101484 A CN108101484 A CN 108101484A CN 201711432660 A CN201711432660 A CN 201711432660A CN 108101484 A CN108101484 A CN 108101484A
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- Prior art keywords
- reinforcement material
- underground
- red mud
- water
- built
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0409—Waste from the purification of bauxite, e.g. red mud
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- 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
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
(structure) is built the present invention relates to one kind and builds material, and more particularly to a kind of underground buildings or structures reinforcement material, the solid material including following weight percent is formed：Red mud 45% 60%, flyash 25% 40%, desulfurated plaster 0 7.5%, slag 0 5%, cement 2.5% 12.5%；Further include water, water-solid ratio 1:1.0~1.3.The present invention disclosure satisfy that the requirement of underground strengthening characteristic, while also effectively make use of the solid waste such as red mud, flyash, realize recycling for resource；With the feature of environmental protection, meet environmental requirement, it is less to environmental hazard；The present invention can effectively expand the source of underground reinforcement material, of low cost, easy to spread.
Description
Technical field
The present invention relates to a kind of buildings or structures material, the material used more particularly to a kind of reinforcing of underground buildings or structures
Material.
Background technology
Subterranean coal, it is necessary to tunnel substantial amounts of tunnel (coal road, rock gangway), runs into rubble in recovery process in tunneling process
When layer, sandy soils and karst collapse col umn, fault belt, since it is internal more open, enough support forces can not be provided, triggered
The accidents such as back slump, wall caving, water burst, particularly coal road usage time it is short, therefore need low-intensity reinforcement material to its into
Row is reinforced, cost-effective.
Although the reinforcement material and chemical consolidation material based on the cement used at present can preferably add tunnel
Gu but its reinforcement material is of high cost, and it is difficult to be removed in the exploitation process of coal seam, restricts the economic benefit in colliery.Therefore, it is necessary to it designs
Go out it is a kind of water blockoff but also can reinforce, the readily removable underground material removed, change the reinforcement performance of reinforcement material, so as to effectively carry
High tunnel safety coefficient.
The content of the invention
In view of the drawbacks described above of the prior art, the technical problems to be solved by the invention are to provide a kind of underground and build/construct
Object reinforcement material.
To achieve the above object, the present invention provides following technical solutions：
/ structures reinforcement material is built in a kind of underground, and the solid material including following weight percent is formed：Red mud 45%~
60%th, flyash 25%~40%, desulfurated plaster 0~7.5%, slag 0~5%, cement 2.5%~12.5%；Further include water,
Water-solid ratio is 1:1.0~1.3.
Preferably, the solid material including following weight percent is formed：Red mud 55%, flyash 30%, desulfurization stone
Cream 5%, slag 2.5%, cement 7.5%；Further include water, water-solid ratio 1:1.2.
Preferably, further including additive, additive accounts for the 0~1.5% of solid material total weight.
Preferably, the additive is bentonite, one kind in sodium tripolyphosphate, polyether polyol, polyester polyol
Or its any combination.
The beneficial effects of the invention are as follows：
It disclosure satisfy that the requirement of underground strengthening characteristic, while also effectively make use of the solid waste such as red mud, flyash,
Realize recycling for resource；The present invention has the feature of environmental protection, meets environmental requirement, less to environmental hazard；The present invention can
The source of underground reinforcement material is effectively expanded, it is of low cost, it is easy to spread.
Large dosage uses red mud, makes full use of the water retention property of red mud, to reduce the excreting water phenomenon of reinforcement material, and coordinates
Incorporation self-control additive, adjusts its rheological property, so as to ensure that reinforcement material in the case of with preferable mobility, does not occur
Excreting water phenomenon；
Make full use of the alkaline matter alkali-activated carbonatite flyash in red mud, the SiO in slag powders2、Al2O3Isoreactivity substance, from
And form intensity；Meanwhile the hydrated product chemosetting Na+ that is formed using alkali-activated material and physics sealing heavy metal from
Son；Additive is made by oneself by mixing, and structural remodeling further stablizes/curing heavy metal ion.
Figure of description
Fig. 1 is the construction drawing that material of the present invention is used for reinforcing laneway engineering.
Specific embodiment
The technical solution in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiments obtained without making creative work belong to the model that the present invention protects
It encloses.
/ structures reinforcement material is built in a kind of underground, and the solid material including following weight percent is formed：Red mud 45%~
60%th, flyash 25%~40%, desulfurated plaster 0~7.5%, slag 0~5%, cement 2.5%~12.5%；Further include water,
Water-solid ratio is 1:1.0~1.3.
Such as：Cement mixing content is 7.5% in fixed reinforcement material, contents of ground slag 2.5%, and desulfurated plaster volume is 5%,
Admixture dosage be 1% (mixing outside), water-solid ratio 1:1.2, adjustment red mud volume is respectively 45%, 50%, 55%, 60%,
It is remaining to use flyash polishing, the workability and mechanical property of reinforcement material are detected respectively, and specific test result is as shown in table 1-1：
Influence of the table 1-1 red muds volume to reinforcement material workability and mechanical property
It can be seen that from table 1-1：(1) with the increase of red mud volume, the working performance of reinforcement material gradually weakens, when red
After mud volume is up to 60%, drastically downward trend is presented in viscosity and the fluidity of red mud；(2) with the increasing of red mud volume
Add, the trend continuously decreased is presented in the intensity of reinforcement material, and when red mud volume is 55%, 7d intensity is 1.05MPa, 28d
Intensity is 2.20MPa.
Such as：Red mud volume is 55% in fixed reinforcement material, contents of ground slag 2.5%, and desulfurated plaster volume is 5%,
Admixture dosage be 1% (mixing outside), water-solid ratio 1:1.2, adjustment cement mixing content is respectively 2.5%, 5%, 7.5%, 10%,
12.5%, remaining uses flyash polishing, detects the workability and mechanical property of reinforcement material, specific test result such as table 1- respectively
Shown in 2：
Influence of the table 1-2 cement mixing contents to reinforcement material workability and mechanical property
It can be seen that from table 1-2：(1) variation of cement mixing content influences little, viscosity base to the workability of reinforcement material
This is between 30-35s, and initial flow degree is substantially in 320mm or so, and 30min fluidities are in 300mm or so；(2) with cement
The increase of volume, the trend that gradually rises of intensity presentation of reinforcement material when cement mixing content has 2.5% to be increased to 12.5%, add
Gu the 28d intensity of material is increased to 3.01MPa by original 0.75MPa, it is contemplated that economy, suitable cement mixing content are
7.5%.
Such as：Red mud volume is 55% in fixed reinforcement material, cement mixing content 7.5%, and desulfurated plaster volume is 5%,
Admixture dosage be 1% (mixing outside), water-solid ratio 1:1.2, adjustment contents of ground slag is respectively 0%, 2.5%, 5.0%, remaining use
Flyash polishing detects the workability and mechanical property of reinforcement material respectively, and specific test result is as shown in table 1-3：
Influence of the table 1-3 contents of ground slag to reinforcement material workability and mechanical property
It can be seen that from table 1-3：(1) as the increase of contents of ground slag, the viscosity of reinforcement material gradually increase, fluidity is then
It continuously decreases, but is satisfied by associated specifications；(2) with the increase of contents of ground slag, the intensity of reinforcement material, which is presented, gradually to be risen
High trend, when contents of ground slag has 0% to be increased to 5%, the 28d intensity of reinforcement material is increased to by original 1.58MPa
2.56MPa. is since some regional miberal powder resources are less, and cost is higher, it is contemplated that economy, suitable contents of ground slag are
2.5%.
Such as：Red mud volume is 55% in fixed reinforcement material, cement mixing content 7.5%, contents of ground slag 2.5%, outside
Add agent volume for 1% (mixing outside), water-solid ratio 1:1.2, adjustment desulfurated plaster volume is respectively 0%, 2.5%, 5.0%,
7.5%, remaining uses flyash polishing, detects the workability and mechanical property of reinforcement material, specific test result such as table 1-4 respectively
It is shown：
Influence of the table 1-4 desulfurated plasters volume to reinforcement material workability and mechanical property
It can be seen that from table 1-4：(1) with the increase of desulfurated plaster volume, the viscosity of reinforcement material gradually increases, flowing
Degree then continuously decreases, and after desulfurated plaster volume height is to 7.5%, reinforcement material 30min fluidities are reduced to 260mm；(2) with
The increase of desulfurated plaster volume, the intensity presentation of reinforcement material first gradually rises the trend continuously decreased afterwards, when desulfurated plaster is mixed
Measure for 5% when, reinforcement material 28d intensity reaches peak for 2.20MPa.
Such as：Red mud volume is 55% in fixed reinforcement material, cement mixing content 7.5%, and contents of ground slag 2.5% takes off
Sulphur gypsum addition is 5%, remaining uses flyash polishing, water-solid ratio 1:1.2, adjustment admixture dosage is respectively 0%, 0.5%,
1.0%th, 1.5% (mixing outside) detects the workability and mechanical property of reinforcement material respectively, and specific test result is as shown in tables 1 to 5：
Influence of the table 1-5 admixture dosages to reinforcement material workability and mechanical property
It can be seen that from table 1-5：(1) additive influences reinforcement material workability notable, when its volume is less than 0.5%
When, reinforcement material viscosity is higher, and fluidity is smaller, can not meet construction requirement, and after its volume is up to 1.5%, it reinforces
There is excreting water phenomenon in material, equally affects its workability；(2) admixture dosage has one to the mechanical property of reinforcement material
Fixed influence, with the increase of admixture dosage, the intensity of reinforcement material is also gradually increasing.Consider, preferably additive is mixed
It measures as 1.0%.
Such as：Red mud volume is 55% in fixed reinforcement material, cement mixing content 7.5%, and contents of ground slag 2.5% takes off
Sulphur gypsum addition is 5%, remaining uses flyash polishing, and admixture dosage is 1.0% (mixing outside), and it is respectively 1 that adjustment water-solid ratio, which is,：
1.0、1：1.1、1：1.2、1：1.3, the workability and mechanical property of reinforcement material, specific test result such as table 1-6 are detected respectively
It is shown：
Influence of the table 1-6 water-solid ratios to reinforcement material workability and mechanical property
It can be seen that from table 1-6：(1) water-solid ratio influences reinforcement material workability notable, with the reduction of water-solid ratio, adds
Gu the workability of material gradually weakens；(2) water-solid ratio has a significant impact reinforcement material mechanical property, as water-solid ratio is by 1：
1.0 are reduced to 1：1.3, reinforcement material 28d intensity is improved by 1.22MPa to 2.87MPa.Consider performance and cost, preferably
Water-solid ratio is 1：1.2.
It is final definite suitable red based on above-mentioned material composition and reinforcement material workability, the affecting laws of mechanical property
The match ratio of mud base reinforcement material is as shown in table 1-7：
The red mud base reinforcement material proportioning that table 1-7 is determined
Red mud belongs to a kind of stronger Industrial Solid Waste of alkalescence, and pH value is often higher than 12, and containing a certain amount of heavy metal from
Son, therefore by GB 5058-85《Non-ferrous metals industry solid waste pollution controls standard》It is defined as harmful waste residue (strong basicity
Soil).Red mud is used as primary raw material, underground reinforcement material is prepared, the leaching characteristic of heavy metal ion need to be studied, so as to
Ensure red mud base reinforcement material in use, secondary pollution is not caused to environment.Table 1-8 is additional for original state red mud and difference
The pH value of its leachate of the red mud base reinforcement material of agent volume and the leaching concentration of part heavy metal ion.
The leaching concentration (ppm) of the pH and heavy metal ion of table 1-8 original states red mud and red mud base reinforcement material
Note 1：Except pH limit value references《Solid waste determination of corrosion glass electrode method》(GB/T15555.12-1995) determine
Outside, remaining equal reference《House refuse fills up field control standard》(16889-2008) associated specifications determine.
Note 2：ND expressions do not detect.
Analytical table 1-8 is can be found that：(1) alkali-activated carbonatite and sulphate activation system can significantly reduce the pH value of leachate, Gu
Heavy metal ion in change/stabilization red mud.Even if being not added with additive, the pH value of leachate is reduced to by original 12.69
12.51, heavy metal ion dissolution concentration is significantly reduced；(2) additive has reduces pH value and stabilizing heavy metal well
Effect.When admixture dosage is 1.0%, the pH value of leachate is reduced to 11.88, and concentration of heavy metal ion reduces substantially,
Pb is reduced to by 0.381ppm and not detected, and Cr is reduced to 0.09ppm by 4.452ppm, and Cu is reduced to by 42.1ppm and do not detected, As
0.0005ppm is reduced to by 0.42ppm；(4) red mud base reinforcement material its leachate designed does not possess corrosivity, and a huge sum of money
Belong to ion concentration to reach《House refuse fills up field control standard》The related request of (16889-2008).
As it can be seen that use red mud that there is good environmental-protecting performance for the underground reinforcement material that primary raw material is prepared, it will not be right
Environment causes significantly to pollute.
Only presently preferred embodiments of the present invention is explained in detail above, but the present invention is not limited to above-described embodiment,
Within the knowledge of a person skilled in the art, can also be made on the premise of present inventive concept is not departed from each
Kind variation, various change should all be included in the protection scope of the present invention.
Claims (4)
1./structures reinforcement material is built in a kind of underground, which is characterized in that the solid material including following weight percent is formed：
Red mud 45%~60%, flyash 25%~40%, desulfurated plaster 0~7.5%, slag 0~5%, cement 2.5%~
12.5%；Further include water, water-solid ratio 1:1.0~1.3.
2./structures reinforcement material is built in a kind of underground according to claim 1, which is characterized in that including following weight hundred
The solid material of ratio is divided to form：Red mud 55%, flyash 30%, desulfurated plaster 5%, slag 2.5%, cement 7.5%；It further includes
Water, water-solid ratio 1:1.2.
3./structures reinforcement material is built in a kind of underground according to claim 1, which is characterized in that further includes additive, outside
Agent is added to account for the 0~1.5% of solid material total weight.
4./structures reinforcement material is built in a kind of underground according to claim 3, which is characterized in that the additive is swollen
Moisten soil, sodium tripolyphosphate, polyether polyol, one kind in polyester polyol or its any combination.
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| CN201711432660.7A CN108101484A (en) | 2017-12-26 | 2017-12-26 | / structures reinforcement material is built in a kind of underground |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110684537A (en) * | 2019-11-08 | 2020-01-14 | 上海市建筑科学研究院有限公司 | Chromium-contaminated soil curing agent and application thereof |
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| CN101215142A (en) * | 2008-01-04 | 2008-07-09 | 华中科技大学 | Bayer process red mud composite brick and producing method thereof |
| CN102392644A (en) * | 2010-11-30 | 2012-03-28 | 淄博市王庄煤矿 | Stripped fluid expansion filling mining method for below middle thick coal seam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110684537A (en) * | 2019-11-08 | 2020-01-14 | 上海市建筑科学研究院有限公司 | Chromium-contaminated soil curing agent and application thereof |
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Application publication date: 20180601 |