CN109160774A - A kind of injection geo-polymer - Google Patents
A kind of injection geo-polymer Download PDFInfo
- Publication number
- CN109160774A CN109160774A CN201811062983.6A CN201811062983A CN109160774A CN 109160774 A CN109160774 A CN 109160774A CN 201811062983 A CN201811062983 A CN 201811062983A CN 109160774 A CN109160774 A CN 109160774A
- Authority
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- China
- Prior art keywords
- metakaolin
- polymer
- modulus
- geo
- water glass
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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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of injection geo-polymers, the polymer is a kind of injection geo-polymer for the first lining cutting in tunnel, configure low modulus water glass, calcined kaolin obtains the higher metakaolin of activity, low modulus water glass and metakaolin and GGBS mixture are stirred evenly with the ratio of water-cement ratio 0.6, the metakaolin geo-polymer spraying machine being stirred is sprayed into country rock.Geo-polymer is used for the first lining cutting in tunnel, and geo-polymer is invested into rock mass surface in the form sprayed, plays the role of stabilization and reinforcement country rock.Compared with shotcrete lining, present invention condensation firm time is short, and strength of lining is high after molding, and is compared to gunite concrete, and metakaolin base geological polymer is finer and close, and anti-permeability performance is strong.
Description
Technical field
The present invention is a kind of injection geo-polymer just served as a contrast for tunnel.Geo-polymer is specifically used for tunnel
First lining cutting, and geo-polymer is invested into rock mass surface in the form sprayed, play the role of stabilization and reinforcement country rock.
Background technique
Ground polymers is with metakaolin or industrial residue (such as clay, volcanic ash, slag, flyash, silicon ash, tailing, red
Mud, steel slag etc.), alkali-activator be raw material, by appropriate process, by chemically reacting having of obtaining and ceramic performance phase
As a kind of new material.It is to prepare the geo-polymer of raw material to be known as metakaolin base geological polymer with metakaolin.Geology
Polymer has heat-resisting quantity, does not aoxidize between 1000 DEG C to 1200 DEG C and does not decompose.It condenses intensity after the fast fast, hardening of hardening
It is high.In addition to this, geo-polymer durability is strong, possesses the performance of fixing metal ions.Therefore geo-polymer can substitute
Cement-based material is applied in the first lining project in tunnel.
Metakaolin base geological polymer can make its presetting period under the catalytic action of GGBS (blast furnace slag miberal powder)
It is greatly reduced with final setting time, and its intensity is increased.Experimental study shows when the mass substitutions such as GGBS are higher
When the soil of ridge, final setting time be can control within 30min, and intensity can increase by 150% or so.
It is compared to ordinary cement sill, the viscosity of metakaolin geo-polymer is higher, to solve this problem, existing
The ratio of mud that field construction uses increases to 0.6 by 0.5, and mixes the slag that mass fraction is 1% to increase its mobile performance.
Summary of the invention
The object of the present invention is to provide a kind of injection geo-polymers for the first lining cutting in tunnel.It specifically solves higher
The preparation of ridge soil matrix geo-polymer, and the feasibility problems by geo-polymer applied to tunnel support.
For the engineering unstable to part country rock, needs to perform per-fore pouring liquid with small pipe and surrounding rock in excavation is added
Gu and being excavated using top bar method to tunnel top and two sides, injection metakaolin base geological polymer conduct immediately
Just country rock is reinforced in spray.This just needs the high mechanical properties of metakaolin base geological polymer and solidifying time short, however
The coagulating hardening performance that general room temperature conserves lower metakaolin base geological polymer is unsatisfactory.
Technical solution used for the above purpose is a kind of injection metakaolin base geological polymer, in raw material
In increase appropriate GGBS, due to the Si in the alternative metakaolin of Ca in GGBS, form more form compact and stable chain structure,
And its activity is higher, therefore, while can increasing considerably its mechanical property, reduces its required setting time.The polymer
A kind of injection geo-polymer for the first lining cutting in tunnel, configure low modulus water glass, calcined kaolin obtain activity compared with
High metakaolin stirs evenly low modulus water glass and metakaolin and GGBS mixture with the ratio of water-cement ratio 0.6, will
The metakaolin geo-polymer spraying machine being stirred sprays to country rock.
Metakaolin base geological polymer is obtained by metakaolin and alkali-activator by process.Metakaolin by
Kaolin obtains after 850 degrees Celsius of calcining 4h, and alkali-activator uses the waterglass of low modulus, and low modulus water glass is by Gao Mo
Number waterglass is mixed to get with industrial sheet alkali.The metakaolin got ready and low modulus water glass is mixed with 0.6 water-cement ratio stirring
It closes and uniformly obtains metakaolin base geological polymer.
Construction process is as follows:
S1 performs per-fore pouring liquid with small pipe and reinforces to surrounding rock in excavation, and using top bar method to tunnel top and
It is excavated two sides；
S2 configuration configuration low modulus water glass；
The modulus of a default waterglass to be configured, if the modulus of waterglass to be configured is 1.3, i.e. M0.The industry bought back
Modulus of water glass is generally higher, i.e. M1, according to the following formula:
In formula: G is the quality that oxygen sodium oxide molybdena is added；G1 is the quality of soluble glass of high modulus；M1For soluble glass of high modulus
Modulus；M0For the modulus of waterglass to be configured；N is the content of sodium oxide molybdena in soluble glass of high modulus；P is the sodium hydroxide being added
Purity.
It can be acquired by above-mentioned formula and soluble glass of high modulus is made into addition oxygen sodium oxide molybdena required for low modulus water glass
Quality G, the quality G that oxygen sodium oxide molybdena is added is configured to the sodium hydroxide solution of 8mol/L, by configured 8mol/L hydrogen-oxygen
Change sodium solution, which pours into waterglass stoste, obtains low modulus water glass.
S3 calcined kaolin obtains the higher metakaolin of activity.
By kaolin with 850 DEG C of calcining 4h, then constant temperature 2h obtains metakaolin.
Low modulus water glass and metakaolin and GGBS mixture are uniformly mixing to obtain partially by S4 with the ratio of water-cement ratio 0.6
Kaolin and geo-polymer.The blended amount and the following standard of reference of GGBS:
When setting time needed for engineering is greater than 30min, GGBS blended amount is 10%-20%.
When setting time needed for engineering is less than 30min, GGBS blended amount is 20%-30%.
It is not recommended that using 30% or more substitution amount.
S5 by prepared metakaolin base geological polymer using high-pressure injection in excavation face as the first lining in tunnel
It builds.
Compared with shotcrete lining, present invention condensation firm time is short, and strength of lining is high after molding, and is compared to
Gunite concrete, metakaolin base geological polymer is finer and close, and anti-permeability performance is strong.
Detailed description of the invention
Fig. 1 is polymer production process schematic diagram of the present invention.
Specific embodiment
It is as shown in Figure 1 polymer production process schematic diagram, configuration low modulus water glass-calcined kaolin obtains activity
Higher metakaolin-stirs low modulus water glass and metakaolin and GGBS mixture with the ratio of water-cement ratio 0.6 equal
Even-metakaolin geo-polymer spraying machine for will being stirred sprays to country rock.
Construction process is as follows:
S1 performs per-fore pouring liquid with small pipe and reinforces to surrounding rock in excavation, and using top bar method to tunnel top and
It is excavated two sides；
S2 configuration configuration low modulus water glass；
The modulus of a default waterglass to be configured, if the modulus of waterglass to be configured is 1.3, i.e. M0.The industry bought back
Modulus of water glass is generally higher, i.e. M1, according to the following formula:
In formula: G is the quality that oxygen sodium oxide molybdena is added；G1 is the quality of soluble glass of high modulus；M1For soluble glass of high modulus
Modulus；M0For the modulus of waterglass to be configured；N is the content of sodium oxide molybdena in soluble glass of high modulus；P is the sodium hydroxide being added
Purity.
It can be acquired by above-mentioned formula and soluble glass of high modulus is made into addition oxygen sodium oxide molybdena required for low modulus water glass
Quality G, the quality G that oxygen sodium oxide molybdena is added is configured to the sodium hydroxide solution of 8mol/L, by configured 8mol/L hydrogen-oxygen
Change sodium solution, which pours into waterglass stoste, obtains low modulus water glass.
S3 calcined kaolin obtains the higher metakaolin of activity.
By kaolin with 850 DEG C of calcining 4h, then constant temperature 2h obtains metakaolin.
Low modulus water glass and metakaolin and GGBS mixture are uniformly mixing to obtain partially by S4 with the ratio of water-cement ratio 0.6
Kaolin and geo-polymer.The blended amount and the following standard of reference of GGBS:
When setting time needed for engineering is greater than 30min, GGBS blended amount is 10%-20%.
When setting time needed for engineering is less than 30min, GGBS blended amount is 20%-30%.
It is not recommended that using 30% or more substitution amount.
For the present invention compared with shotcrete lining, condensation firm time is short, and strength of lining is high after molding, and is compared to
Gunite concrete, metakaolin base geological polymer is finer and close, and anti-permeability performance is strong.
S5 by prepared metakaolin base geological polymer using high-pressure injection in excavation face as the first lining in tunnel
It builds.
Geo-polymer is applied to be of great significance to the application and development of geo-polymer in the first lining cutting in tunnel.
Claims (2)
1. a kind of injection metakaolin base geological polymer, it is characterised in that: metakaolin base geological polymer is by metakaolin
It is obtained with alkali-activator by process；Metakaolin is obtained after 850 degrees Celsius of calcining 4h by kaolin, alkaline excitation
Agent uses the waterglass of low modulus, and low modulus water glass is mixed to get by soluble glass of high modulus and industrial sheet alkali；It is inclined by what is got ready
Kaolin and low modulus water glass are uniformly mixed to obtain metakaolin base geological polymer with 0.6 water-cement ratio；
Construction process is as follows:
S1 performs per-fore pouring liquid with small pipe and reinforces to surrounding rock in excavation, and using top bar method to tunnel top and two sides
It is excavated；
S2 configuration configuration low modulus water glass；
The modulus of a default waterglass to be configured, if the modulus of waterglass to be configured is 1.3, i.e. M0；The industrial waterglass bought back
Modulus is generally higher, i.e. M1, according to the following formula:
In formula: G is the quality that oxygen sodium oxide molybdena is added；G1 is the quality of soluble glass of high modulus；M1For the modulus of soluble glass of high modulus；
M0For the modulus of waterglass to be configured；N is the content of sodium oxide molybdena in soluble glass of high modulus；P is the purity for the sodium hydroxide being added；
It can be acquired by above-mentioned formula and soluble glass of high modulus is made into the matter that oxygen sodium oxide molybdena is added required for low modulus water glass
G is measured, the quality G that oxygen sodium oxide molybdena is added is configured to the sodium hydroxide solution of 8mol/L, by configured 8mol/L sodium hydroxide
Solution pours into waterglass stoste and obtains low modulus water glass；
S3 calcined kaolin obtains the higher metakaolin of activity；
By kaolin with 850 DEG C of calcining 4h, then constant temperature 2h obtains metakaolin；
Low modulus water glass and metakaolin and GGBS mixture are uniformly mixing to obtain higher ridge with the ratio of water-cement ratio 0.6 by S4
Soil and geo-polymer；
S5 by prepared metakaolin base geological polymer using high-pressure injection in excavation face as the first lining cutting in tunnel.
2. a kind of injection metakaolin base geological polymer according to claim 1, it is characterised in that: the blended amount of GGBS
It is as follows:
When setting time needed for engineering is greater than 30min, GGBS blended amount is 10%-20%；
When setting time needed for engineering is less than 30min, GGBS blended amount is 20%-30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062983.6A CN109160774A (en) | 2018-09-12 | 2018-09-12 | A kind of injection geo-polymer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062983.6A CN109160774A (en) | 2018-09-12 | 2018-09-12 | A kind of injection geo-polymer |
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| CN109160774A true CN109160774A (en) | 2019-01-08 |
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| CN201811062983.6A Pending CN109160774A (en) | 2018-09-12 | 2018-09-12 | A kind of injection geo-polymer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047314A (en) * | 2021-03-30 | 2021-06-29 | 北京工业大学 | Side slope treatment method for preparing soil from soil |
| CN113153369A (en) * | 2021-04-23 | 2021-07-23 | 湖南交通国际经济工程合作有限公司 | Construction method of high-performance sprayed concrete with large-amount steel slag powder in tunnel |
| CN116102301A (en) * | 2023-02-07 | 2023-05-12 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Heat-insulating high-toughness carbonic acid tunnel slag geopolymer shotcrete and preparation method thereof |
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| KR20130134045A (en) * | 2012-05-30 | 2013-12-10 | 리싸이클주식회사 | Geopolymer mixture using nano-silica and by-product of industry |
| CN105271848A (en) * | 2015-10-22 | 2016-01-27 | 桂林理工大学 | Manganese gangue slag-based geopolymer cementing material and preparation method thereof |
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2018
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| CZ300134B6 (en) * | 2007-02-14 | 2009-02-18 | Výzkumný ústav anorganické chemie, a. s. | Two-component geopolymeric binding agent and process for producing thereof |
| CN101328029A (en) * | 2008-07-18 | 2008-12-24 | 桂林工学院 | Preparation of manganese slag groundmass geopolymer cementing material |
| KR20130134045A (en) * | 2012-05-30 | 2013-12-10 | 리싸이클주식회사 | Geopolymer mixture using nano-silica and by-product of industry |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047314A (en) * | 2021-03-30 | 2021-06-29 | 北京工业大学 | Side slope treatment method for preparing soil from soil |
| CN113153369A (en) * | 2021-04-23 | 2021-07-23 | 湖南交通国际经济工程合作有限公司 | Construction method of high-performance sprayed concrete with large-amount steel slag powder in tunnel |
| CN113153369B (en) * | 2021-04-23 | 2023-12-05 | 湖南交通国际经济工程合作有限公司 | Construction method for high-performance injection concrete of tunnel with large mixing amount of steel slag powder |
| CN116102301A (en) * | 2023-02-07 | 2023-05-12 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Heat-insulating high-toughness carbonic acid tunnel slag geopolymer shotcrete and preparation method thereof |
| CN116102301B (en) * | 2023-02-07 | 2024-05-28 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Heat-insulating high-toughness carbonic acid tunnel slag geopolymer shotcrete and preparation method thereof |
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Application publication date: 20190108 |