CN105731947A - Alkali-activated cementing material capable of controlling setting time as well as control method and application thereof - Google Patents
Alkali-activated cementing material capable of controlling setting time as well as control method and application thereof Download PDFInfo
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- CN105731947A CN105731947A CN201610036496.7A CN201610036496A CN105731947A CN 105731947 A CN105731947 A CN 105731947A CN 201610036496 A CN201610036496 A CN 201610036496A CN 105731947 A CN105731947 A CN 105731947A
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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
- C04B28/08—Slag cements
- C04B28/082—Steelmaking slags; Converter slags
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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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- 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
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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 relates to a cementing material capable of controlling setting time as well as a setting time control method thereof and application of the cementing material in concrete, comprising the adopted cementing material, a method for controlling the setting time of an alkali-activated cementing material by virtue of an external electric field as well as a product and a method which apply the material and the method to the concrete. By adopting the material and method of the technical scheme, hydration process of the concrete can be sped up according to requirements after the concrete is moulded, setting and hardening time is controlled, and the prepared concrete has long setting time, so that construction performance requirements are met; meanwhile, the setting and hardening time can be shortened and early strength can be improved according to requirements; besides, environmental temperature during hydration can be guaranteed by utilizing concentrated and rapidly released hydration thermal produced by controlling the setting time, and the problem that normal hydration can not be carried out in negative temperature environment is solved.
Description
Technical field
The present invention relates to a kind of method controlled Binder Materials that can control setting time and setting time thereof and the application in concrete, be embodied in 1, alkali-activated carbonatite Binder Materials is mixed to form mixture with mixing water；2, extra electric field is utilized to accelerate Binder Materials hydration rate, it is achieved the controlled condensation within normal setting time.
Background technology
The survival and development history of the mankind is exactly the development history of various materials.Construction material be obtain with the development of the mankind constantly updating, development.Concrete material has the premium properties such as the good plasticity before condensation, the excellent mechanical performances after hardening and durability.Therefore, concrete material is current most widely used construction material, is also the preferred basic material of various construction infrastructure.Concrete can be classified according to the difference of Binder Materials, such as, portland-type cement concrete, alkali-slag concrete, Sulphoaluminate cement, phosphate cement-based concrete etc..These concrete materials have roughly the same technical performance.
Quickening along with modern society's rhythm of life and the dependence to road-based infrastructure are increasing, and particularly in the large size city that load is heavy, a lot of Concrete base facilities are in order to keep using function to need on-call maintenance, maintenance normally.The maintenance of these infrastructure, maintenance are typically necessary and complete within a shorter even very short time, face the contradiction simultaneously requiring that early strength is high and concrete quality is high.Good quality concrete requires that good workability and longer setting time are to ensure construction quality；And high early strength requires that concrete has short setting time, to reach instructions for use as early as possible.Contradiction concentrates on this technical parameter setting time.
Concrete setting time is to affect one of key factors of important performance such as workability, early mechanics characteristics, later stage quality and durability, is also concrete important parameter.Existing concrete technology is by using additive to adjust the setting time of Binder Materials and various performance, such as, and various early strength agent, accelerator, retarder, air entraining agent etc..These additives generally add in the preparation process of concrete mix.Existing concrete solidifying technology soon is all to sacrifice setting time and workability for cost.Such as gunite concrete, mixes appropriate accelerator and concrete can be allowed to have 20min intensity；But its presetting period only about 2min, does not substantially have other construction method except sprayed construction, is completely unsuitable for conventional construction.And the concrete with more than the 45min presetting period does not have hour intensity.Therefore, currently without a kind of demand meeting workability the setting time with more than 45min and the concrete technology with 45min early strength.
It is all in concrete, add the additives such as a certain amount of various early strength agent, accelerator or retarder owing to adjusting the method for concrete coagulating time at present, by the firm time that the component and dosage changing additive adjusts.There is concrete match ratio once it is determined that, it condenses, the weak point just substantially determined of firm time；Namely also exist after concrete is complete moulding by casting, the deficiency that its setting time cannot change again.
It addition, the temperature environment that concrete normal hydrated needs are certain.Along with the reduction of hydrated environment temperature, concrete hydration rate is gradually reduced and is likely to stop aquation, freeze injury, infringement or even destruction concrete component even can occur under subzero temperature environment, jeopardize construction quality.Therefore, common concrete has and can not normally condense the deficiency hardened by the carrying out when subzero temperature.
Summary of the invention
Technical scheme is to be solved be technical problem is that by providing a kind of Binder Materials that can control setting time and the method controlling setting time, its heat evolution velocity can be accelerated according to demand after concrete formation, control to condense firm time, prepared concrete is allowed both to have had long setting time, to meet workability requirement, again can be according to demand, shorten and condense firm time, improve early strength, namely, when concrete is complete moulding by casting, its setting time can also be changed according to demand；It addition, can also utilize further the concentration controlling to bring setting time, quickly release the heat of hydration to ensure the ambient temperature of aquation, solve under subzero temperature environment can not be normal hydrated a difficult problem.
First purpose of the present invention is to provide a kind of alkali-activated carbonatite Binder Materials that can control setting time；
Second purpose of the present invention is to provide the method controlling alkali-activated carbonatite Binder Materials setting time；
3rd purpose of the present invention is to provide a kind of concrete that can control setting time.
For realizing first purpose of the present invention, a kind of alkali-activated carbonatite Binder Materials that can control setting time of offer is provided, at least includes the silicon-aluminum containing oxide active material of exciting agent and powdery.
Mix liquid in the mixture that alkali-activated carbonatite Binder Materials is formed after mixing with mixing water is a kind of alkaline solution, its hydroxide ion concentration is significantly high, it is a kind of good electric conductor, there is the ability converting electrical energy into the hydration reaction speed that heat energy improves mixture temperature, quickening Binder Materials.Secondly, under the effect of external electric field, hydroxide ion forms the interim enrichment under current field condition in solid particles surface, improves the concentration of the reactant of local, promotes hydration reaction further.3rd, the hydration process of alkali-activated carbonatite Binder Materials is an exothermic reaction, and hydration rate is more fast, and the heat energy discharged is more many, and the temperature of mixture is more high.Therefore, under the effect of extra electric field, defining the hydrated environment of a hydration rate and temperature positive feedback in alkali-activated carbonatite Binder Materials mixture, hydrated product is quickly formed, and shows as the condensation hardening of mixture.By extra electric field, change the temperature in alkali-activated carbonatite Binder Materials mixture and electric-force gradient, it is possible to control its hydration rate and aquation progress, thus controlling setting time.
Further, limiting described exciting agent is the mixture at least including one or more compositions in sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, waterglass.
Further, limit the silicon-aluminum containing oxide active material of described powdery refer to through high-temperature process or the class that obtained by pyroprocessing stage with sieve and silica-sesquioxide as main chemical compositions and there is pozzolanic activity, there is 200m2The pulverulent material of/more than kg specific surface area, at least includes the mixture of ground granulated blast furnace slag, ground steel slag, Bayer process red mud, flyash, levigate slag, levigate calcined clay mineral, phosphorus-slag-powder, levigate calcining coal gangue, levigate one or more compositions calcined in shale.
It addition, limit the described alkali-activated carbonatite Binder Materials that can control setting time, may also include by one or more adjuvants formed in water reducer, retarder, extender, admixture.
Water reducer of the present invention refers to the additive used by intensity after can reducing the water requirement of mixture, the mobility of raising mixture, raising hardening.
Retarder of the present invention refers to extend the setting time of mixture, improves the additive of workability.
Extender of the present invention can produce appropriate volumetric expansion after referring to aquation, compensates a kind of additive that alkali-activated carbonatite Binder Materials aquation is shunk.
Admixture of the present invention refers to reduce mixture cost or put forward high performance component, such as kiln ash, silicon ash, fiber, Calx, cement, sodium sulfate, aluminium hydroxide etc..
It addition, be defined main component, the quality composition limiting described Binder Materials ranges for: silicon-aluminum containing oxide active material 60-80 part of powdery, with Na2O+0.658K2Exciting agent 2-16 part that O calculates, water reducer 0-10 part, retarder 0-10 part, extender 0-10 part, admixture 0-40 part.
For realizing second purpose of the present invention, the technical scheme is that a kind of method that setting time controlling alkali-activated carbonatite Binder Materials is provided, comprise the following steps, the first step, Binder Materials mix homogeneously with mixing water, appropriate gathering materials formation mixture；Second step, is moulded required shape and size by mixture；3rd step, applies extra electric field to mixture, accelerates the hydration rate of Binder Materials, controls setting time.
Alkali-activated carbonatite Binder Materials forms mixture after mixing homogeneously with mixing water, the mixture of alkali-activated carbonatite Binder Materials is applied one or more electric fields in alternating current, unidirectional current or the faradism that formed by electromagnetic wave and accelerates the hydration rate of Binder Materials, it is achieved quick-hardening.
Further, limiting described extra electric field can be one or more in alternating current, unidirectional current or the faradism that formed by electromagnetic wave.
The composition mass range of the mixture described in limiting further is as silicon-aluminum containing oxide active material 60-80 part of powdery, with Na2O+0.658K2Exciting agent 2-16 part that O calculates, water reducer 0-10 part, retarder 0-10 part, extender 0-10 part, admixture 0-40 part, mixing water 15-100 part.
Limiting further, described mix mixing water includes the water in liquid exciting agent.
Limiting further, described mixture is slurry mixture or only slurry mixture and appropriate gather materials the mortar mixture or concrete mix that are mixed to form only.
For realizing the 3rd purpose of the present invention, the concrete that setting time can be controlled of the technical program, at least include the mixture formed by the silicon-aluminum containing oxide active material of exciting agent and powdery, mixing water, the mix homogeneously that gathers materials.
Described gathering materials can be that fine aggregate, coarse aggregate or fine aggregate and coarse aggregate are by gathering materials that proper ratio is formed.
Accompanying drawing illustrates:
The flow chart of the application of Fig. 1 a kind of setting time controlling alkali-activated carbonatite Binder Materials.
Detailed description of the invention:
Mode by the examples below, illustrates the present invention program.But protection scope of the present invention is not limited to described embodiment.
Embodiment 1-6, a kind of alkali-activated carbonatite Binder Materials that can control setting time, the concrete composition of each embodiment is as shown in the table:
Embodiment 7
A kind of alkali-activated carbonatite Binder Materials that can control setting time, the quality composition of Binder Materials ranges for: the silicon-aluminum containing oxide active material of powdery 60 parts, with Na2O+0.658K2The exciting agent 3 parts that O calculates, water reducer 2 parts, retarder 3 parts.
Embodiment 8
A kind of alkali-activated carbonatite Binder Materials that can control setting time, the quality composition of Binder Materials ranges for: the silicon-aluminum containing oxide active material of powdery 80 parts, with Na2O+0.658K2The exciting agent 5 parts that O calculates.
Embodiment 9
A kind of alkali-activated carbonatite Binder Materials that can control setting time, the quality composition of Binder Materials ranges for: the silicon-aluminum containing oxide active material of powdery 65 parts, with Na2O+0.658K2The exciting agent 4 parts that O calculates, water reducer 3 parts, retarder 2 parts, extender 1 part, admixture 15 parts.
Embodiment 10
A kind of alkali-activated carbonatite Binder Materials that can control setting time, the quality composition of Binder Materials ranges for: the silicon-aluminum containing oxide active material of powdery 75 parts, with Na2O+0.658K2The exciting agent 6 parts of O calculating, extender 5 parts, admixture 10 parts.
Embodiment 11
A kind of method of setting time controlling alkali-activated carbonatite Binder Materials, comprises the following steps, the first step, Binder Materials mix homogeneously with mixing water formation mixture；The composition quality of mixture is: the silicon-aluminum containing oxide active material of powdery 60 parts, with Na2O+0.658K2The exciting agent 4 parts that O calculates, retarder 1 part, extender 2 parts, admixture 8 parts, mixing water 30 parts；Second step, is moulded required shape and size by mixture；The 2 hours after shaping normal setting time of mixture；3rd step, applies the extra electric field that every meter of voltage is 110-380V alternating current immediately to the mixture after above-mentioned molding, and mixture condensed hardening at 10 minutes；Stopping power supply, the mixture after hardening has 5MPa cubic compressive strength when the complete rear 30min of molding.
Embodiment 12
The application of a kind of setting time controlling alkali-activated carbonatite Binder Materials, comprises the following steps, and the first step, Binder Materials mix mix with mixing water, appropriate gathering materials and be formed uniformly mixture；The composition quality of mixture is: the silicon-aluminum containing oxide active material of powdery 70 parts, with Na2O+0.658K2The exciting agent 4 parts that O calculates, water reducer 1 part, extender 2 parts, admixture 8 parts, mixing water 35 parts, fine aggregate 140 parts；Second step, is moulded required shape and size by mixture；The 2.5 hours after shaping normal setting time of mixture；3rd step, it is the galvanic extra electric field of 110-380V that the mixture after above-mentioned molding applies every meter of voltage immediately, and mixture condensed hardening at 20 minutes；Stopping power supply, the mixture after hardening has 4MPa cubic compressive strength when the complete rear 40min of molding.
Embodiment 13
The application of a kind of setting time controlling alkali-activated carbonatite Binder Materials, comprises the following steps, and the first step, Binder Materials mix mix with mixing water, appropriate gathering materials and be formed uniformly mixture；The composition quality of mixture is: the silicon-aluminum containing oxide active material of powdery 70 parts, with Na2O+0.658K2The exciting agent 4 parts that O calculates, water reducer 1 part, extender 2 parts, mixing water 35 parts；Second step, is moulded required shape and size by mixture；The 2.5 hours after shaping normal setting time of mixture；3rd step, applies the induction field produced with microwave form immediately to the mixture after above-mentioned molding, and mixture condensed hardening at 20 minutes；Stopping power supply, the mixture after hardening has 4MPa cubic compressive strength when the complete rear 40min of molding.
Embodiment 14
As shown in Figure 1, a kind of application of the setting time controlling alkali-activated carbonatite Binder Materials, comprise the following steps, the first step, adopt include exciting agent, the silicon-aluminum containing oxide active material of powdery, adjuvant Binder Materials mix mix with mixing water, appropriate gathering materials and be formed uniformly mixture；The composition quality of mixture is: the silicon-aluminum containing oxide active material of powdery 70 parts (the silicon-aluminum containing oxide active material of powdery can adopt the concrete material in above-described embodiment), with the Na2O+0.658K2O exciting agent 5 parts (exciting agent can adopt the concrete material in above-described embodiment) calculated, extender 2 parts, admixture 8 parts, mixing water 40 parts, gathers materials 180 parts；Second step, is moulded required shape and size by concrete mix, the 4 hours after shaping normal setting time of mixture；3rd step, applies the extra electric field that every meter of voltage is 220-380V alternating current immediately to the mixture after above-mentioned molding, and mixture condensed hardening at 12 minutes；Stopping power supply, the mixture after hardening has 6MPa cubic compressive strength when the complete rear 30min of molding.
Embodiment 15
As shown in Figure 1, a kind of application of the setting time controlling alkali-activated carbonatite Binder Materials, comprise the following steps, the first step, adopt include exciting agent, the silicon-aluminum containing oxide active material of powdery, adjuvant Binder Materials mix mix with mixing water, appropriate gathering materials and be formed uniformly mixture；The composition quality of mixture is: the silicon-aluminum containing oxide active material of powdery 50 parts, with Na2O+0.658K2The exciting agent 6 parts that O calculates, extender 3 parts, mixing water 40 parts, gathers materials 200 parts；Second step, is moulded required shape and size by concrete mix, the 7 hours after shaping normal setting time of mixture；3rd step, applies the extra electric field that every meter of voltage is 110-380V alternating current immediately to the mixture after above-mentioned molding, and mixture condensed hardening at 15 minutes；Stopping power supply, the mixture after hardening has 7MPa cubic compressive strength when the complete rear 40min of molding.
Above to detailed description of the invention provided by the invention; the explanation of specific embodiment is only intended to help to understand the technical scheme of the material of the present invention, method and application; should be understood that; for those skilled in the art; under the premise without departing from inventive principle; the concrete application of the present invention can also being made certain improvement, these improve in the scope of the claims falling into invention.
Claims (10)
1. can control the alkali-activated carbonatite Binder Materials of setting time, it is characterised in that: at least include the silicon-aluminum containing oxide active material of exciting agent and powdery.
2. can control the alkali-activated carbonatite Binder Materials of setting time as claimed in claim 1, it is characterised in that: described exciting agent is the mixture at least including one or more compositions in sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, waterglass.
3. can control the alkali-activated carbonatite Binder Materials of setting time as claimed in claim 1, it is characterised in that: the silicon-aluminum containing oxide active material of described powdery at least includes the mixture of one or more compositions in ground granulated blast furnace slag, ground steel slag, Bayer process red mud, flyash, levigate slag, levigate calcined clay mineral, phosphorus-slag-powder, levigate calcining coal gangue, levigate calcining shale.
4. can control the alkali-activated carbonatite Binder Materials of setting time as claimed in claim 1, it is characterised in that: also include the adjuvant of one or more compositions in water reducer, retarder, extender, admixture.
5. can control the alkali-activated carbonatite Binder Materials of setting time as claimed in claim 1, it is characterised in that: the quality composition of described Binder Materials ranges for: silicon-aluminum containing oxide active material 60-80 part of powdery, with Na2O+0.658K2Exciting agent 2-16 part that O calculates, water reducer 0-10 part, retarder 0-10 part, extender 0-10 part, admixture 0-40 part.
6. the method controlling the setting time of alkali-activated carbonatite Binder Materials, it is characterised in that: comprising the following steps, the first step, Binder Materials mix mix with mixing water, appropriate gathering materials and are formed uniformly mixture；Second step, is moulded required shape and size by mixture；3rd step, applies extra electric field to mixture, accelerates the hydration rate of Binder Materials, controls setting time.
7. control method setting time as claimed in claim 6, it is characterised in that: described extra electric field can be one or more in alternating current, unidirectional current or the faradism that formed by electromagnetic wave.
8. control method setting time as claimed in claim 6, it is characterised in that: the composition mass range of described mixture is: silicon-aluminum containing oxide active material 60-80 part of powdery, with Na2O+0.658K2Exciting agent 2-16 part that O calculates, water reducer 0-10 part, retarder 0-10 part, extender 0-10 part, admixture 0-40 part, mixing water 15-100 part.
9. control method setting time as claimed in claim 6, it is characterised in that: described mixture is mortar mixture or the concrete mix of slurry mixture or clean slurry mixture and appropriate formation of gathering materials only.
10. can control the concrete of setting time, it is characterised in that: at least include the mixture formed by the silicon-aluminum containing oxide active material of exciting agent and powdery, mixing water, the mix homogeneously that gathers materials.
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Cited By (12)
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| CN106336185A (en) * | 2016-08-16 | 2017-01-18 | 西安建筑科技大学 | Method for preparing alkali slag cement-based repair material |
| CN108059373A (en) * | 2017-11-30 | 2018-05-22 | 中冶建筑研究总院有限公司 | Application of the alkali-slag cement as treatment of soft foundation material |
| CN109503103A (en) * | 2018-12-17 | 2019-03-22 | 南京绿色增材智造研究院有限公司 | A kind of superhigh tenacity alkali-activated carbonatite gunite concrete and preparation method thereof |
| CN110606721A (en) * | 2019-08-31 | 2019-12-24 | 武汉理工大学 | Cementing material based on various solid wastes and preparation method thereof |
| CN110818305A (en) * | 2019-11-19 | 2020-02-21 | 太原理工大学 | Method for adjusting geopolymer strength and realizing high-strength geopolymer |
| CN111574166A (en) * | 2020-05-22 | 2020-08-25 | 大连交通大学 | Alkali-activated cementing material and preparation method thereof |
| CN111807488A (en) * | 2020-08-05 | 2020-10-23 | 潍坊工商职业学院 | Technical method for preparing ecological environment-friendly composite water treatment agent by large solid waste complexing agent |
| US10875811B2 (en) | 2015-04-17 | 2020-12-29 | Pengcheng Zhang | Concrete construction method for controlling setting time and special equipment thereof |
| CN114455902A (en) * | 2022-01-30 | 2022-05-10 | 武汉理工大学 | Retarding and binding agent of alkali-activated low-calcium gelling material based on electromagnetic induction heating coagulation regulating mechanism and preparation method and application thereof |
| CN114477804A (en) * | 2022-02-22 | 2022-05-13 | 中南大学 | Method for preparing high-activity cementing material raw material by cooperation of coal gangue and red mud, high-activity cementing material raw material and application thereof |
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| CN116891353A (en) * | 2023-08-08 | 2023-10-17 | 中冀建勘集团有限公司 | Red mud and fly ash geopolymer gel material with controllable initial setting time and preparation method thereof |
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Cited By (15)
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|---|---|---|---|---|
| US10875811B2 (en) | 2015-04-17 | 2020-12-29 | Pengcheng Zhang | Concrete construction method for controlling setting time and special equipment thereof |
| CN106336185A (en) * | 2016-08-16 | 2017-01-18 | 西安建筑科技大学 | Method for preparing alkali slag cement-based repair material |
| CN108059373A (en) * | 2017-11-30 | 2018-05-22 | 中冶建筑研究总院有限公司 | Application of the alkali-slag cement as treatment of soft foundation material |
| CN108059373B (en) * | 2017-11-30 | 2021-07-23 | 中冶建筑研究总院有限公司 | Use of alkali-slag cement as soft base treatment material |
| CN109503103A (en) * | 2018-12-17 | 2019-03-22 | 南京绿色增材智造研究院有限公司 | A kind of superhigh tenacity alkali-activated carbonatite gunite concrete and preparation method thereof |
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| CN110818305A (en) * | 2019-11-19 | 2020-02-21 | 太原理工大学 | Method for adjusting geopolymer strength and realizing high-strength geopolymer |
| CN111574166B (en) * | 2020-05-22 | 2022-01-14 | 大连交通大学 | Alkali-activated cementing material and preparation method thereof |
| CN111574166A (en) * | 2020-05-22 | 2020-08-25 | 大连交通大学 | Alkali-activated cementing material and preparation method thereof |
| CN111807488A (en) * | 2020-08-05 | 2020-10-23 | 潍坊工商职业学院 | Technical method for preparing ecological environment-friendly composite water treatment agent by large solid waste complexing agent |
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