CN106278100A - A kind of slag is utilized to carry out the toughness reinforcing method of gypsum increasing and goods thereof - Google Patents
A kind of slag is utilized to carry out the toughness reinforcing method of gypsum increasing and goods thereof Download PDFInfo
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- CN106278100A CN106278100A CN201610676899.8A CN201610676899A CN106278100A CN 106278100 A CN106278100 A CN 106278100A CN 201610676899 A CN201610676899 A CN 201610676899A CN 106278100 A CN106278100 A CN 106278100A
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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
- C04B28/14—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
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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
- 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
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/142—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
- C04B28/14—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
- C04B28/143—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 phosphogypsum
-
- 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
- C04B2111/00991—Uses not provided for elsewhere in C04B2111/00 for testing
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses and a kind of utilize slag to carry out the toughness reinforcing method of gypsum increasing and goods thereof, described method is: by slag, industrial gypsum, calciferous waste material and silicon-aluminum containing garbage, mix homogeneously, adding water, grind, the ratio of mud is 0.4～0.55, grind 20min, compound is poured in mould, the demoulding after molding, obtain sample；After said sample standard curing to 3～5d, then carrying out thermal curing, curing temperature is 50～135 DEG C, and curing time is 3～24h, obtains slag self-reinforcing toughened article.The slag self-reinforcing toughened article using method provided by the present invention to prepare has good toughness, the advantage that comprcssive strength is high, it is not necessary to add harmful Organic substance, without adding of fiber.
Description
Technical field
The invention belongs to field of material technology, be specifically related to a kind of utilize slag carry out the toughness reinforcing method of gypsum increasing and
Goods.
Background technology
Slag is a kind of industrial solid wastes, is the slag of steel-making discharge, and output is about the 15～20% of crude steel yield.Steel
Slag is mainly made up of the oxide of calcium, ferrum, silicon, magnesium and a small amount of aluminum, manganese, phosphorus etc..Main mineral facies are tricalcium silicate, silicic acid two
The solid solution that calcium, monticellite, calcium and magnesium rhodonite, calcium aluminoferrite and silicon, magnesium, ferrum, manganese, the oxide of phosphorus are formed, also
Containing a small amount of free calcium oxide and metallic iron, fluor-apatite etc..The whole world is annual the most about produces 140,000,000 tons of slags, at present I
State's slag accumulation stores up nearly 1,000,000,000 tons, and comprehensive utilization ratio is only 10%.
Gypsum Fibrosum is monoclinic system mineral, be main chemical compositions be calcium sulfate (CaSO4) hydrate.Gypsum Fibrosum is a kind of using
Way industrial materials and construction material widely.Can be used for cement retarder, gypsum building products, modelling, medical food add
Add agent, gas washing in SA production, filler, paint filler etc..Gypsum Fibrosum and the microcellular structure of goods thereof and thermal dehydration, be allowed to have excellent
Good sound insulation, heat insulation and fire protecting performance.But the strength ratio of conventional gypsum is relatively low, which greatly limits it in reality
Large-scale popularization in construction.
For the shortcoming overcoming Gypsum Fibrosum, it will usually use multiple activeness and quietness mode, such as, strengthen, toughness reinforcing, improve it and resist
Impact capacity.At present the enhancement method of Gypsum Fibrosum is limited, and a class is to add additive to improve interface, improves tensile strength etc., as
The Chinese patent application of Application No. 201410164510.2, discloses the polycarboxylic-acid pottery of a kind of compounding virtue sulfobetaines
Mould Gypsum Fibrosum additive, virtue sulfobetaines can be with Ca2+In conjunction with, it is possible to reduce water paste ratio, be conducive to improving pottery plaster mold
The intensity of tool；Another kind of it is introduced into high-tensile reinforcement, as introduced reinforcing bar, fiber etc., it is possible to admixture straw stalk.Such as application
Number it is the Chinese patent application of 201410611939.1, discloses a kind of glass fiber reinforced gypsum hollow wall panel, at two-layer stone
It is provided with multiple cavity between layer of paste, and is embedded in glass fiber at layer, improve the comprcssive strength of wallboard, rupture strength.Existing increasing
Strong technology has following deficiency: (1) organic interpolation is harmful；(2) can not sustainable development, the profit to garbage
Relatively low by rate；(3) complicated process of preparation；(4) plus fiber, stirring is difficult uniformly, easy conglomeration, and preparation cost is high.
Can develop a kind of novel without organic activeness and quietness mode, above-mentioned prior art can not only be overcome
In complex process, deficiency that energy consumption is high, and be capable of effective process of waste residue, be the problem being worth this area research.
Summary of the invention
Goal of the invention: for the complicated process of preparation of existing activeness and quietness mode, the deficiency that energy consumption is higher, can in order to meet
The requirement of sustainable development, the invention provides a kind of slag and carries out the toughness reinforcing method of Gypsum Fibrosum and goods thereof, and the method is without adding
Organic, and achieve the comprehensive utilization of garbage.
Technical scheme: the invention provides and a kind of utilize slag to carry out the method that gypsum increasing is toughness reinforcing, in industrial gypsum
Add slag, calciferous waste material and silicon-aluminum containing garbage, mixing, grind, add water, be uniformly mixed so as to obtain compound, compound is poured into
In mould, the demoulding after molding, obtain sample；After said sample is carried out standard curing, then carry out hydrothermal curing, i.e. complete to strengthen
Toughness reinforcing；Described calciferous waste material is one or more mixture in sugar filter mud, carbide slag, and described silicon-aluminum containing garbage is
One or more mixture in electric furnace phosphoric slag, flyash, gangue, calcium enriched cyclone-furnace slag.
In said process, described adds water, and the ratio of mud is 0.4～0.55.Described grinding, milling time be 20～
30min, being ground to specific surface area is 300～400m2/kg.Described molding, after pouring compound into mould, vibration moulding, firmly
It it is collapsible die after change.
The maintenance of the present invention is the most important, and standard curing contributes to the early hydration reaction of goods and condenses hardening, damp and hot
Maintenance promotes the carrying out of reaction, therefore advanced column criterion maintenance, then carries out hydrothermal curing.Described standard curing, condition is 18
～22 DEG C, relative humidity is 92～98%, and curing time is 3～5d.Preferably condition is: temperature 20 DEG C, relative humidity 95%,
Curing time is 4d.Described hydrothermal curing curing temperature is 50～135 DEG C, and curing time is 3～24h.Preferably curing temperature
Being 135 DEG C, curing time is 3h.
In above-mentioned steps, with total restatement of raw material, each material content be slag 36.40～62.67%, calciferous waste material
11.76～26.93%, industrial gypsum 15.33～19.85%, silicon-aluminum containing garbage 6.56～18.78%.
Further, the present invention can also be added to additive, and described additive is water reducer or exciting agent.Treat that raw material grinds
Adding water reducer or exciting agent after mill, water reducer is polycarboxylic acids, and volume is the 0.02～0.05% of raw material；Exciting agent is ordinary silicon
Acid salt cement or alumina cement, volume is the 5～10% of raw material.
Described industrial gypsum is one or more mixture in desulfurated plaster, ardealite.
Present invention also offers employing above-mentioned utilizes slag to carry out the method that gypsum increasing is toughness reinforcing, the system that activeness and quietness obtains
Product.These goods have relatively high impact resistance and the excellent properties of higher comprcssive strength.
Beneficial effect: 1, from the angle of raw material, the present invention is used as the raw material of slag self-reinforcing toughened article with industrial residue,
Achieve the comprehensive utilization of garbage, economize on resources, beneficially the sustainable development of resource.
2, from the angle of method, the present invention uses chemical method, real by choosing suitable mineral proportioning and damp and hot method
Existing activeness and quietness.
3, from the angle of product, the self-reinforcing toughened article using method provided by the present invention to prepare has higher toughness
The excellent properties of higher comprcssive strength, and without adding harmful Organic substance, there is the biggest Practical significance.
Detailed description of the invention:
Below by several typical embodiments, the present invention is further described, the raw material used in the present embodiment
Component, see table (in table, numerical value is mass content):
Table 1 raw material main component (%)
| CaO | SiO2 | Al2O3 | Fe2O3 | SO3 | |
| Slag | 29.47 | 17.65 | 5.52 | 31.59 | 0.0376 |
| Sugar filter mud | 46.67 | 1.96 | 1.09 | —— | 1.76 |
| Calx dewatered sludge | 50.48 | 6.10 | 1.45 | 0.67 | —— |
| Desulfurated plaster | 30.90 | 2.50 | 2.73 | 3.03 | 44.00 |
| Ardealite | 28.67 | 4.11 | 0.62 | —— | 40.53 |
| Electric furnace phosphoric slag | 41.15 | 35.94 | 0.83 | 0.23 | —— |
| Calcium enriched cyclone-furnace slag | 15.00 | 35.00 | 18.00 | 3.00 | —— |
Embodiment 1
446.2g slag, 153.3g desulfurated plaster, 241.8g sugar filter mud and 158.7g calcium enriched cyclone-furnace slag are prepared and be placed on
In planetary mills, grinding 20min, specific surface area is 300m2/ kg, adds the polycarboxylic acids of 400g water and 0.02%, by compound after taking-up
Pour in mould, the demoulding after molding, obtain block sample；
Said sample is placed in standard curing box (temperature is 20 DEG C, and relative humidity is 95%) to after 3d, move to rise
Warm to the digital display constant temperature stirring circulatory curing box that design temperature is 80 DEG C, measure the mechanical property of sample after thermostatic curing 12h.
The rupture strength of goods is 4.73MPa, and comprcssive strength is 8.58MPa, and shock resistance is 10.30kJ/m2。
Embodiment 2
364g slag, 190g ardealite, 264.7g sugar filter mud and 181.3g calcium enriched cyclone-furnace slag are prepared and be placed on planetary mills
In, grind 20min, specific surface area is 350m2/ kg, adds 550g water, pours in mould by compound after taking-up, the demoulding after molding,
Obtain block sample；
Said sample is placed in standard curing box (temperature is 20 DEG C, and relative humidity is 95%) maintenance to after 5d, moves to
Warmed up to the digital display constant temperature stirring circulatory curing box that design temperature is 50 DEG C, measure the mechanics of sample after thermostatic curing 24h
Performance.The rupture strength of goods is 4.54MPa, and comprcssive strength is 7.46MPa, and shock resistance is 9.95kJ/m2。
Embodiment 3
625.6g slag, 185.2g desulfurated plaster, 120.3g Calx dewatered sludge and 68.9g electric furnace phosphoric slag are prepared rearmounted
In planetary mills, grinding 20min, specific surface area is 350m2/ kg, adds 550g water, pours in mould by compound after taking-up, becomes
The demoulding after type, obtains block sample；
Said sample is placed in standard curing box (temperature is 20 DEG C, and relative humidity is 95%) maintenance to after 5d, moves to
Warmed up to the digital display constant temperature stirring circulatory curing box that design temperature is 50 DEG C, measure the mechanics of sample after thermostatic curing 24h
Performance.The rupture strength of goods is 3.43MPa, and comprcssive strength is 6.83MPa, and shock resistance is 7.85kJ/m2。
Embodiment 4
376.9g slag, 181.2g desulfurated plaster, 254.1g Calx dewatered sludge and 187.8g gangue are prepared rearmounted
In planetary mills, grinding 20min, specific surface area is 400m2/ kg, adds the Portland cement of 450g water and 10%, after taking-up
Compound is poured in mould, the demoulding after molding, obtain block sample；
Said sample is placed in standard curing box (temperature is 20 DEG C, and relative humidity is 95%) maintenance to after 4d, moves to
Warmed up to the digital display constant temperature stirring circulatory curing box that design temperature is 80 DEG C, measure the mechanical property of sample after thermostatic curing 3h
Energy.The rupture strength of goods is 5.01MPa, and comprcssive strength is 9.26MPa, and shock resistance is 10.23kJ/m2。
Embodiment 5
610.5g slag, 196.2g ardealite, 126.1g sugar filter mud and 67.2g electric furnace phosphoric slag are prepared and be placed on planetary mills
In, grind 20min, specific surface area is 400m2/ kg, adds the alumina cement of 450g water and 5%, pours compound into mould after taking-up
In tool, the demoulding after molding, obtain block sample；
Said sample is placed in standard curing box (temperature is 20 DEG C, and relative humidity is 95%) maintenance to after 4d, moves to
Warmed up to the digital display constant temperature stirring circulatory curing box that design temperature is 80 DEG C, measure the mechanical property of sample after thermostatic curing 3h
Energy.The rupture strength of goods is 5.13MPa, and comprcssive strength is 9.21MPa, and shock resistance is 10.69kJ/m2。
Embodiment 6
369.2g slag, 177.5g desulfurated plaster, 269.3g sugar filter mud and 183.9g calcium enriched cyclone-furnace slag are prepared and be placed on
In planetary mills, grinding 30min, specific surface area is 350m2/ kg, adds the alumina cement of 500g water and 7%, by compound after taking-up
Pour in mould, the demoulding after molding, obtain block sample；
Said sample is placed in standard curing box (temperature is 20 DEG C, and relative humidity is 95%) maintenance to after 4d, moves to
Warmed up to the digital display constant temperature stirring circulatory curing box that design temperature is 120 DEG C, measure the mechanics of sample after thermostatic curing 3h
Performance.The rupture strength of goods is 4.75MPa, and comprcssive strength is 9.41MPa, and shock resistance is 11.30kJ/m2。
Embodiment 7
616.4g slag, 198.1g ardealite, 117.6g Calx dewatered sludge and 67.9g electric furnace phosphoric slag are prepared and be placed on
In planetary mills, grinding 20min, specific surface area is 400m2/ kg, adds the Portland cement of 450g water and 10%, will after taking-up
Compound is poured in mould, the demoulding after molding, obtains block sample；
Said sample is placed in standard curing box (temperature is 20 DEG C, and relative humidity is 95%) maintenance to after 4d, moves to
Warmed up to the digital display constant temperature stirring circulatory curing box that design temperature is 135 DEG C, measure the mechanics of sample after thermostatic curing 3h
Performance.The rupture strength of goods is 4.51MPa, and comprcssive strength is 11.16MPa, and shock resistance is 15.09kJ/m2。
Comparative example 1
Before the non-activeness and quietness of conventional gypsum, in standard curing box, maintenance is to 4d, move to warmed up to design temperature be 120 DEG C
Digital display constant temperature stirring circulatory curing box in, measure the mechanical property of sample after thermostatic curing 3h.Rupture strength is 1.21MPa,
Comprcssive strength is 3.24MPa, and shock resistance is 1.00kJ/m2。
Comparative example 2
After conventional gypsum uses conventional method activeness and quietness (adding additive), in standard curing box, maintenance is to after 4d, moves
To warmed up to the digital display constant temperature stirring circulatory curing box that design temperature is 120 DEG C, after thermostatic curing 3h, measure the power of sample
Learn performance.Rupture strength is 2.31MPa, and comprcssive strength is 5.89MPa, and shock resistance is 2.15kJ/m2。
Comparative example 3
After conventional gypsum uses conventional method activeness and quietness (introducing reinforcement), in standard curing box, maintenance is to after 4d,
Move to warmed up to the digital display constant temperature stirring circulatory curing box that design temperature is 135 DEG C, after thermostatic curing 3h, measure sample
Mechanical property.Rupture strength is 4.3MPa, and comprcssive strength is 8.7MPa, and shock resistance is 2.089kJ/m2。
Shock resistance from embodiment 1～7, and comparative example 1～3 it can be seen that before and after conventional gypsum activeness and quietness
With shock resistance and the comprcssive strength that comprcssive strength is below goods obtained by the present invention, therefore, it can be seen that the present invention
Goods there is toughness and the comprcssive strength of excellence, wherein optimum condition is, 36.92～61.64% slag, 17.75～
19.81% industrial gypsum, 11.76～26.93% calciferous waste material and 6.79～18.39% silicon-aluminum containing garbage preparation system
Product, after standard curing 4d in the digital display constant temperature stirring circulatory curing box of 135 DEG C, thermostatic curing 3h.
Claims (10)
1. one kind utilizes slag to carry out the method that gypsum increasing is toughness reinforcing, it is characterised in that add slag, calcic in industrial gypsum
Garbage and silicon-aluminum containing garbage, mixing, grind, add water, be uniformly mixed so as to obtain compound, compound is poured in mould, after molding
The demoulding, obtains sample；After said sample is carried out standard curing, then carry out hydrothermal curing, i.e. complete activeness and quietness；
Described calciferous waste material is one or more mixture in sugar filter mud, carbide slag, and described silicon-aluminum containing garbage is
One or more mixture in electric furnace phosphoric slag, flyash, gangue, calcium enriched cyclone-furnace slag.
Slag is utilized to carry out the method that gypsum increasing is toughness reinforcing the most as claimed in claim 1, it is characterised in that described adds water, water
Gray scale is 0.4～0.55.
Utilize slag to carry out the method that gypsum increasing is toughness reinforcing the most as claimed in claim 1, it is characterised in that described grinding, grind
Time consuming is 20～30min, and being ground to specific surface area is 300～400m2/kg。
Slag is utilized to carry out the method that gypsum increasing is toughness reinforcing the most as claimed in claim 1, it is characterised in that described molding, will
After compound pours mould into, vibration moulding, is collapsible die after hardening.
Slag is utilized to carry out the method that gypsum increasing is toughness reinforcing the most as claimed in claim 1, it is characterised in that described standard is supported
Protecting, condition is 18～22 DEG C, and relative humidity is 92～98%.
Slag is utilized to carry out the method that gypsum increasing is toughness reinforcing the most as claimed in claim 1, it is characterised in that described is damp and hot foster
Protecting curing temperature is 50～135 DEG C, and curing time is 3～24h.
Slag is utilized to carry out the method that gypsum increasing is toughness reinforcing the most as claimed in claim 1, it is characterised in that with the gross weight of raw material
Meter, each material content be slag 36.40～62.67%, calciferous waste material 11.76～26.93%, industrial gypsum 15.33～
19.85%, silicon-aluminum containing garbage 6.56～18.78%.
Slag is utilized to carry out the method that gypsum increasing is toughness reinforcing the most as claimed in claim 1, it is characterised in that to be additionally added additive,
Described additive is water reducer or exciting agent.
Slag is utilized to carry out the method that gypsum increasing is toughness reinforcing the most as claimed in claim 1, it is characterised in that described industrial stone
Cream is one or more mixture in desulfurated plaster, ardealite.
10. utilizing slag to carry out the method that gypsum increasing is toughness reinforcing described in any one in claim 1～9, activeness and quietness obtains
Goods.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386781A (en) * | 2019-07-26 | 2019-10-29 | 江苏禾吉新材料科技有限公司 | A kind of preparation method of alkali-activated slag-steel slag net slurry test block |
| CN115448680A (en) * | 2022-10-13 | 2022-12-09 | 涉县清漳水泥制造有限公司 | Low-carbon rapid demoulding prefabricated part prepared from solid waste base cementing material containing cement, fly ash and desulfurized gypsum and preparation method thereof |
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| CN101348340A (en) * | 2008-09-12 | 2009-01-21 | 镇江沃地新材料投资有限公司 | Gypsum based gel material prepared from undisturbed industry by-product gypsum and preparation thereof |
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| CN101182143A (en) * | 2007-11-07 | 2008-05-21 | 北京航空航天大学 | Preparation of composite high-expansion cementing material by using industrial slag and preparation technique thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386781A (en) * | 2019-07-26 | 2019-10-29 | 江苏禾吉新材料科技有限公司 | A kind of preparation method of alkali-activated slag-steel slag net slurry test block |
| CN115448680A (en) * | 2022-10-13 | 2022-12-09 | 涉县清漳水泥制造有限公司 | Low-carbon rapid demoulding prefabricated part prepared from solid waste base cementing material containing cement, fly ash and desulfurized gypsum and preparation method thereof |
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