CN101921548A - Method for preparing quick-hardened cement-based adhesive by utilizing refuse-incinerated fly ash - Google Patents
Method for preparing quick-hardened cement-based adhesive by utilizing refuse-incinerated fly ash Download PDFInfo
- Publication number
- CN101921548A CN101921548A CN200910052851XA CN200910052851A CN101921548A CN 101921548 A CN101921548 A CN 101921548A CN 200910052851X A CN200910052851X A CN 200910052851XA CN 200910052851 A CN200910052851 A CN 200910052851A CN 101921548 A CN101921548 A CN 101921548A
- Authority
- CN
- China
- Prior art keywords
- cement
- based adhesive
- gravity die
- incineration
- clinker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- C04B28/02—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
- C04B28/06—Aluminous 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
- C04B7/00—Hydraulic cements
- C04B7/32—Aluminous cements
-
- 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
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
-
- 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
Abstract
The invention relates to a method for preparing a quick-hardened cement-based adhesive by utilizing refuse-incinerated fly ash, comprising the following steps of: (1) calcination of sulphoaluminate cement: raising the temperature of a sulphoaluminate cement raw material to 1,200-1,250 DEG C in the temperature rise speed of 20-30 DEG C/min, then preserving the temperature for 1-2h to form a sulphoaluminate cement clinker, and mixing the sulphoaluminate cement clinker with anhydrous gypsum to obtain the sulphoaluminate cement; and (2) preparation of the quick-hardened cement-based adhesive: blending the sulphoaluminate cement, quartz sand, pulverized fuel ash, hydroxypropyl methyl cellulose, re-dispersible rubber powder and fibers to obtain the quick-hardened cement-based adhesive. Compared with the prior art, the method can ensure the performance of the product and also can reduce serious environmental burden and processing cost which are caused by not utilizing the fly ash, desulfurized gypsum and the like.
Description
Technical field
The invention belongs to new material technology, environmental protection and energy saving technical field, the technology that relates to the utilization of solid waste such as incineration of refuse flyash and produce a kind of fast gravity die cement based jelling agent.
Background technology
Along with develop rapidly, the population of urban construction increases fast, also in rapid increase, composition also becomes increasingly complex the quantity discharged of domestic waste.With the domestic refuse is example, the National urban domestic refuse amount of clearing was just 5,398 ten thousand tons in 1987, increased sharply to 1.2 hundred million tons by 1997, China's municipal wastes had reached more than 1.5 hundred million tons in 2002, and increasing with annual 8%～10% speed, the annual emissions that expects China's domestic waste in 2010 will reach 2.1 hundred million tons.These wastes have constituted serious threat to the physical environment of human survival---the harm public's physical and mental health, propagate various diseases, pollution of ecological environment, destruction farmland soil property etc., become the focus of social concerns, and become national governments and press for one of problem of solution.Waste disposal method at present commonly used mainly contains: sanitary landfill, compost and burning etc.But traditional method such as sanitary landfill and compost can't satisfy the needs of urban development owing to all drawbacks.Advantage is being played the part of more and more important role gradually in the refuse treatment process and the consumer waste incineration technology is fast with its processing speed, floor space is few, minimizing is effective etc.Ground such as existing many cities of China such as Shanghai, Beijing, Zhuhai, Guangzhou have also built up some garbage burning factories in recent years, and the annual emissions of incineration residue has been broken through 450,000 t.
Though the city garbage burning technology can effectively be handled domestic refuse and (burn the lime-ash that produces and only account for 20%～30% of the preceding gross weight of burning, volume reduces to original 90%), still environment is had bigger harm but burn the flying dust that the back produced (account for lime-ash total amount 20%).Flying dust is as a kind of high-specific surface area material, it is toxic heavy metal such as a large amount of mercury of enrichment, tin, lead not only, and enrichment a large amount of dioxins materials, be a kind of extra quality danger wastes that has heavy metal hazardness simultaneously concurrently and environment is had lasting hazardness.But the main component of incineration of refuse flyash belongs to CaO-SiO simultaneously
2-Al
2O
3(Fe
2O
3) system, have the potentiality of recycling.Waste incineration at present produces the recycling of bottom ash in the U.S., Japan and Europe existing decades of history, but flying dust generally is directly to deliver to the landfill yard landfill after the stabilized processing, and its recycling also is in the trial stage.Therefore take suitable technical measures treating refuse flying ash to reach purpose innoxious, resource utilization, just seem very important and urgent.
In addition, China's flue gas desulfurization technique mainly contains wet desulfurizing process, dry desulfurization and semi-dry desulphurization etc.Wherein, the application percentage of wet desulfurizing process is up to 85%.But the consequence that this Wingdale---gypsum method wet desulfurizing process produces is exactly that desulfurated plaster is stacked in a large number, decomposed and cause secondary pollution, and weather, soil, plant and human health are brought harm.In addition, the by-product gypsum long-standing abuse already in many Production in Chemical Plant processes is for suffering from.Expect 2010, desulfurated plaster and chemical by-product gypsum will be above 100,000,000 tons.How to dispose these trade wastes, become the problem that national governments press for solution.
The tackiness agent that the present invention relates to is mainly used in the sticking card of finishing material such as interior outdoor tile, marble, grouan.Tackiness agent is according to being divided into chemical ingredients and time of coagulation: C class-cement-based adhesive, D class-paste emulsion adhesive, R class-reactive resin tackiness agent.Factors such as wherein the powdery C class cement-based adhesive of being made up of hydraulic cementing materials, mineral aggregate, organic admixture is cheap because of it, and is easy to use make it obtain using widely on the internal and external ornament wall of China's construction work.
China has experienced several stages such as cement paste, sand-cement slurry, 107 glue additives, dry-mix tackiness agent aspect the use of ceramic tile caking agent.Use cement paste, make that more greatly ceramic tile comes off easily, and ceramic tile comes off and do not have foresight, easily cause the accident owing to can produce to shrink behind the hydrated cementitious.So people bring into use sand-cement slurry, though it is little that sand-cement slurry is shunk than plain cement, mainly be that the existence of sand has limited the contraction that a part of cement produces, do not tackle the problem at its root, the flexibility of mortar is still relatively poor, and the problem that ceramic tile comes off still exists.107 glue are as the additive of the sand-cement slurry of bonding ceramic tile, once be used widely, 107 glue are condensation products of polyvinyl alcohol and formaldehyde, its performance is greatly improved to cement paste and sand-cement slurry, but raising along with the health of people environmental consciousness, formaldehyde has bigger threat to HUMAN HEALTH, and national departments concerned provides against uses 107 glue.In the case, the dry-mix tackiness agent begins to be used in the various engineerings, and it mainly is made up of inorganic coagulation material, sand, mineral aggregate, water-holding agent, dispersibility latex powder etc.It is big flexible that the organism that adds in the dry powder mortar adhesive agent has caking agent, can compensate the distortion that in various environment, produces behind the cement setting, its bonding strength is also than cement paste and sand-cement slurry height, and therefore, this type of caking agent is widely used in the various engineerings now.
Producing the required raw material of cement-based adhesive has adhesives, gathers materials and chemical additive.Gather materials and adopt quartz sand mostly, quartz sand generally through pre-treatment such as flushing, drying, screenings, meets the prescription requirement with assurance dynamics and quality.Adhesives is divided into inorganic adhesive material and organic bonding material, and the inorganic adhesive material mainly uses ordinary Portland cement, for the binding agent that firmly fast and other particular requirements are arranged, can adopt fast rigid high-alumina cement or special cement.The adding of organic adhesive can improve the characteristic of cement and mortar.As everyone knows, sand-cement slurry be a kind of very hard, fragility is beaten, the hard brittle material of flexible difference, and the caking agent that needs usually in the building operation will have flexibility, deformability will be got well.Can improve the performance of sand-cement slurry by the adding of organic adhesive, material commonly used has: polyvinyl alcohol, redispersable latex powder etc.After organic caking agent and cement mixing, during moisture evaporation, polymer particle is by coalescent, form the one layer of polymeric film, thereby play the effect of tackiness agent, polymeric film is as organic adhesive, with the example gluing of various fillers together, strengthen the bonding strength of mortar material, improved force of cohesion, reduced Young's modulus, strengthen the elasticity and the bending strength of material, improved the shock-resistance and the weathering resistance of material, reduced the water-absorbent of material, improved the water-retentivity of material use, and producing at the interface of mortar and basic unit very strong bonding strength.The adding of chemical additive can improve the construction application performance of mortar, and additive commonly used has: water-retaining admixture, tensio-active agent, defoamer, frostproofer, thixotropic agent, adjustable solidification agent etc.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of when guaranteeing product performance for the defective that overcomes above-mentioned prior art existence, can alleviate flying dust, desulfurated plaster etc. owing to be not utilized serious burden and the processing costs that environment is caused, utilize incineration of refuse flyash to prepare the method for fast gravity die cement-based adhesive.
Purpose of the present invention can be achieved through the following technical solutions: a kind of method of utilizing incineration of refuse flyash to prepare fast gravity die cement-based adhesive is characterized in that this method may further comprise the steps:
(1) calcining of aluminosulfate cement
With the sulplo-aluminate raw material in electric furnace with heat-up rate to 1200～1250 of 20～30 ℃/min ℃, be incubated 1～2h then and make sulfoaluminate clinker, sulfoaluminate clinker 90wt%-95wt% is mixed obtaining aluminosulfate cement with dehydrated gyp-5wt%-10wt%;
(2) preparation of fast gravity die cement-based adhesive
With aluminosulfate cement 40wt%-50wt%, quartz sand 40wt%-50wt%, flyash 5wt%-10wt%, hydroxypropyl methyl cellulose ether 0.2wt%-0.3wt%, re-dispersible glue powder 1wt%-2wt%, fiber 0.1wt%～0.2wt% carry out mix and promptly get fast gravity die cement-based adhesive.
The prescription of described sulplo-aluminate raw material is as follows: incineration of refuse flyash 10wt%-18wt%, desulfurated plaster 15wt%-25wt%, Wingdale 30wt%-40wt%, bauxitic clay 25wt%-32wt%.
The quality of described sulfoaluminate clinker meets relevant regulations among " aluminosulfate cement " (GB 20472-2006): i.e. Al in the grog
2O
3〉=30.0%; SiO
2≤ 10.5%, ultimate compression strength 〉=55MPa of sulphoaluminate cement clinker 3d.
The essential mineral of described sulfoaluminate clinker is composed as follows:
55wt%-75wt%; C
2S15wt%-30wt%; C
4AF3wt%-6wt%.
Compared with prior art, the present invention has fully utilized solid waste such as incineration of refuse flyash, desulfurated plaster and flyash, non-renewable Mineral resources such as part replace lime stone, bauxitic clay, when guaranteeing product performance, can alleviate flying dust, desulfurated plaster etc. owing to be not utilized serious burden and the processing costs that environment is caused, have good economic and social benefit.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1-3
Main raw material(s) has desulfurated plaster, incineration of refuse flyash, Wingdale, alumina.The main chemical compositions of raw material is as shown in table 1.
Raw-material chemical ingredients/the wt% of table 1
Carrying out charge calculation according to the mineral clinker composition that designs gets: rubbish ash: 15%; Wingdale: 36%; Desulfurated plaster: 19%; Alumina: 30%.The raw material of aforementioned proportion calcined in 1200 ℃ electric furnace with the heat-up rate of 30 ℃/min take out chilling after 1 hour.The chemical ingredients of sulfoaluminate clinker is as shown in table 2.
Main chemical compositions/the % of table 2 sulfoaluminate clinker
Above-mentioned calcination of chamotte admixture 5% dehydrated gyp-is made aluminosulfate cement, and its physicals is as shown in table 3.
Table 3 aluminosulfate cement Main physical performance
With above-mentioned aluminosulfate cement and quartz sand, hydroxypropyl methyl cellulose ether and re-dispersible glue powder mix mixing, can make a kind of fast gravity die cement-based adhesive, choose three prescriptions (mass ratio) of preparation tackiness agent:
1. aluminosulfate cement: 50%; Flyash: 5%; Quartz sand (0.1～0.5mm): 42.6%; Hydroxypropyl methyl cellulose ether: 0.3%; Re-dispersible glue powder: 2%; Fiber (0.2～0.4mm): 0.1%.
2. aluminosulfate cement: 45%; Flyash: 8%; Quartz sand (0.1～0.5mm): 45.1%; Hydroxypropyl methyl cellulose ether: 0.25%; Re-dispersible glue powder: 1.5%; Fiber (0.2～0.4mm): 0.15%.
3. aluminosulfate cement: 40%; Flyash: 10%; Quartz sand (0.1～0.5mm): 48.6%; Hydroxypropyl methyl cellulose ether: 0.2%; Re-dispersible glue powder: 1%; Fiber (0.2～0.4mm): 0.2%.
With above-mentioned tackiness agent, detect with reference to JC/T 547-2005 " ceramic wall and floor bricks tackiness agent " method, the result is as shown in table 4.
Watch 4 fast gravity die cement-based adhesive test-results
Embodiment 4
A kind of method of utilizing incineration of refuse flyash to prepare fast gravity die cement-based adhesive, this method may further comprise the steps:
(1) calcining of aluminosulfate cement
With the sulplo-aluminate raw material: incineration of refuse flyash 18wt%, desulfurated plaster 15wt%%, Wingdale 35wt%, bauxitic clay 32wt%, in electric furnace with the heat-up rate to 1200 of 20 ℃/min ℃, be incubated 1h then and make sulfoaluminate clinker, sulfoaluminate clinker 90% is mixed obtaining aluminosulfate cement with dehydrated gyp-10wt%;
The quality of sulfoaluminate clinker meets relevant regulations among " aluminosulfate cement " (GB 20472-2006): i.e. Al in the grog
2O
3〉=30.0%; SiO
2≤ 10.5%, ultimate compression strength 〉=55MPa of sulphoaluminate cement clinker 3d.The essential mineral of sulfoaluminate clinker is composed as follows:
75wt%%; C
2S15wt%; C
4AF3wt%.
(2) preparation of fast gravity die cement-based adhesive
With aluminosulfate cement 49.6wt%, quartz sand 40wt%%, flyash 8wt%, hydroxypropyl methyl cellulose ether 0.25wt%, re-dispersible glue powder 2wt%, fiber 0.15wt% carry out mix and promptly get fast gravity die cement-based adhesive.
Embodiment 5
A kind of method of utilizing incineration of refuse flyash to prepare fast gravity die cement-based adhesive, this method may further comprise the steps:
(1) calcining of aluminosulfate cement
With the sulplo-aluminate raw material: incineration of refuse flyash 10wt%%, desulfurated plaster 25wt%, Wingdale 40wt%, bauxitic clay 25wt%%, in electric furnace with the heat-up rate to 1250 of 30 ℃/min ℃, be incubated 2h then and make sulfoaluminate clinker, sulfoaluminate clinker 95% is mixed obtaining aluminosulfate cement with dehydrated gyp-5wt%;
The quality of sulfoaluminate clinker meets relevant regulations among " aluminosulfate cement " (GB 20472-2006): i.e. Al in the grog
2O
3〉=30.0%; SiO
2≤ 10.5%, ultimate compression strength 〉=55MPa of sulphoaluminate cement clinker 3d.The essential mineral of sulfoaluminate clinker is composed as follows:
55wt%; C
2S30wt%; C
4AF6wt%.
(2) preparation of fast gravity die cement-based adhesive
With aluminosulfate cement 40wt%, quartz sand 50wt%, flyash 8.6wt%, hydroxypropyl methyl cellulose ether 0.3wt%, re-dispersible glue powder 1wt%, fiber 0.1wt%% carry out mix and promptly get fast gravity die cement-based adhesive.
Claims (3)
1. a method of utilizing incineration of refuse flyash to prepare fast gravity die cement-based adhesive is characterized in that, this method may further comprise the steps:
(1) calcining of aluminosulfate cement
With the sulplo-aluminate raw material in electric furnace with heat-up rate to 1200～1250 of 20～30 ℃/min ℃, be incubated 1～2h then and make sulfoaluminate clinker, sulfoaluminate clinker 90wt%-95wt% is mixed obtaining aluminosulfate cement with dehydrated gyp-5wt%-10wt%;
(2) preparation of fast gravity die cement-based adhesive
With aluminosulfate cement 40wt%-50wt%, quartz sand 40wt%-50wt%, flyash 5wt%-10wt%, hydroxypropyl methyl cellulose ether 0.2wt%-0.3wt%, re-dispersible glue powder 1wt%-2wt%, fiber 0.1wt%～0.2wt% carry out mix and promptly get fast gravity die cement-based adhesive.
2. a kind of method of utilizing incineration of refuse flyash to prepare fast gravity die cement-based adhesive according to claim 1, it is characterized in that the prescription of described sulplo-aluminate raw material is as follows: incineration of refuse flyash 10wt%-18wt%, desulfurated plaster 15wt%-25wt%, Wingdale 30wt%-40wt%, bauxitic clay 25wt%-32wt%.
3. a kind of method of utilizing incineration of refuse flyash to prepare fast gravity die cement-based adhesive according to claim 1 is characterized in that the quality of described sulfoaluminate clinker meets " aluminosulfate cement " (GB20472-2006) standard, i.e. Al in the grog
2O
3〉=30.0%; SiO
2≤ 10.5%, ultimate compression strength 〉=55MPa of sulphoaluminate cement clinker 3d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910052851XA CN101921548B (en) | 2009-06-10 | 2009-06-10 | Method for preparing quick-hardened cement-based adhesive by utilizing refuse-incinerated fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910052851XA CN101921548B (en) | 2009-06-10 | 2009-06-10 | Method for preparing quick-hardened cement-based adhesive by utilizing refuse-incinerated fly ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101921548A true CN101921548A (en) | 2010-12-22 |
| CN101921548B CN101921548B (en) | 2013-01-02 |
Family
ID=43336774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910052851XA Expired - Fee Related CN101921548B (en) | 2009-06-10 | 2009-06-10 | Method for preparing quick-hardened cement-based adhesive by utilizing refuse-incinerated fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101921548B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603218A (en) * | 2012-03-09 | 2012-07-25 | 南京工业大学 | Method for preparing high belite and sulphoaluminate cement clinker by aid of high-alumina fly ash |
| WO2013163010A1 (en) | 2012-04-27 | 2013-10-31 | United States Gypsum Company | Dimensionally stable geopolymer compositions and method |
| WO2013163009A1 (en) | 2012-04-27 | 2013-10-31 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| CN103979810A (en) * | 2014-05-22 | 2014-08-13 | 同济大学 | Method for preparing sulphoaluminate cement clinker by comprehensively utilizing papermaking white mud, bauxite and flue gas desulfurization gypsum |
| CN106365476A (en) * | 2016-09-23 | 2017-02-01 | 金正大诺泰尔化学有限公司 | Combined production method for preparing sulphoaluminate cement and sulfuric acid from flue gas desulfurization gypsum |
| US9624131B1 (en) | 2015-10-22 | 2017-04-18 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
| WO2018111737A1 (en) | 2016-12-12 | 2018-06-21 | United States Gypsum Company | Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability |
| CN108503250A (en) * | 2018-03-07 | 2018-09-07 | 湖北乾道新型材料有限责任公司 | Cement expansive material and preparation method |
| CN110615626A (en) * | 2019-04-01 | 2019-12-27 | 苏州重于山新材料科技有限公司 | Method for preparing underwater rapid plugging material by using industrial waste residues |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX9602271A (en) * | 1996-06-10 | 1998-04-30 | Cemex S A De C V | High resistance hydraulic cement with accelerated development. |
-
2009
- 2009-06-10 CN CN200910052851XA patent/CN101921548B/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603218A (en) * | 2012-03-09 | 2012-07-25 | 南京工业大学 | Method for preparing high belite and sulphoaluminate cement clinker by aid of high-alumina fly ash |
| US10392307B2 (en) | 2012-04-27 | 2019-08-27 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| WO2013163010A1 (en) | 2012-04-27 | 2013-10-31 | United States Gypsum Company | Dimensionally stable geopolymer compositions and method |
| WO2013163009A1 (en) | 2012-04-27 | 2013-10-31 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US10221096B2 (en) | 2012-04-27 | 2019-03-05 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9321681B2 (en) | 2012-04-27 | 2016-04-26 | United States Gypsum Company | Dimensionally stable geopolymer compositions and method |
| US10597327B2 (en) | 2012-04-27 | 2020-03-24 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9643888B2 (en) | 2012-04-27 | 2017-05-09 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9656916B2 (en) | 2012-04-27 | 2017-05-23 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9890082B2 (en) | 2012-04-27 | 2018-02-13 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| CN103979810A (en) * | 2014-05-22 | 2014-08-13 | 同济大学 | Method for preparing sulphoaluminate cement clinker by comprehensively utilizing papermaking white mud, bauxite and flue gas desulfurization gypsum |
| US9624131B1 (en) | 2015-10-22 | 2017-04-18 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
| US10308552B2 (en) | 2015-10-22 | 2019-06-04 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
| CN106365476B (en) * | 2016-09-23 | 2019-06-04 | 金正大诺泰尔化学有限公司 | A kind of method that desulfurized gypsum prepares sulphate aluminium cement co-producing sulfuric acid |
| CN106365476A (en) * | 2016-09-23 | 2017-02-01 | 金正大诺泰尔化学有限公司 | Combined production method for preparing sulphoaluminate cement and sulfuric acid from flue gas desulfurization gypsum |
| US10112870B2 (en) | 2016-12-12 | 2018-10-30 | United States Gypsum Company | Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability |
| WO2018111737A1 (en) | 2016-12-12 | 2018-06-21 | United States Gypsum Company | Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability |
| US10584061B2 (en) | 2016-12-12 | 2020-03-10 | United States Gypsum Company | Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability |
| CN108503250A (en) * | 2018-03-07 | 2018-09-07 | 湖北乾道新型材料有限责任公司 | Cement expansive material and preparation method |
| CN110615626A (en) * | 2019-04-01 | 2019-12-27 | 苏州重于山新材料科技有限公司 | Method for preparing underwater rapid plugging material by using industrial waste residues |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101921548B (en) | 2013-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101921548B (en) | Method for preparing quick-hardened cement-based adhesive by utilizing refuse-incinerated fly ash | |
| Aprianti et al. | Supplementary cementitious materials origin from agricultural wastes–A review | |
| CN103387411B (en) | Method for producing aerated concrete with refuse incinerator slag | |
| CN106187004B (en) | A kind of ecological permeable concrete and preparation method thereof | |
| CN102060493A (en) | Method for preparing unburned slag wall bricks by utilizing household garbage burned slag | |
| CN103319105B (en) | Inorganic waterproof cementitious material and preparation method thereof | |
| CN105152609A (en) | Building brick produced by using fly ash or residues obtained after burning domestic wastes, and production method thereof | |
| Payá et al. | Bagasse ash | |
| CN102363575B (en) | Waste chamotte brick regeneration and utilization method, and concrete doped with waste chamotte brick powder | |
| CN108609998A (en) | A kind of manufacturing method non-burning brick using industrial solid rubbish | |
| CN105503051B (en) | Water-permeable brick made using the clinker of waste incineration and preparation method thereof | |
| CN108751911A (en) | A kind of manufacturing method non-burning brick using industrial slag | |
| CN112321269B (en) | Carbon dioxide carbonized regeneration water permeable brick and preparation process thereof | |
| CN104016603B (en) | The preparation method of industrial residue formula mixed mineral powder | |
| CN102815909A (en) | Gangue ready mixed mortar and preparation method thereof | |
| CN102092992B (en) | Concrete port brick prepared from domestic garbage incinerator slag and preparation method thereof | |
| CN104291766A (en) | Steam-pressing brisk and preparation technology thereof | |
| CN101306937A (en) | Construction garbage concrete brick and production process thereof | |
| CN104803656B (en) | Method used for preparing sintered bricks with modified sludge | |
| CN102219405A (en) | Recycling of construction wastes | |
| Payá et al. | New inorganic binders containing ashes from agricultural wastes | |
| CN101549986A (en) | Fly ash-desulfuration gypsum- concrete self-expandable anti-crack dry powder mortar and method of preparing the same | |
| CN103113078A (en) | Pre-mixed building mortar making full use of solid wastes | |
| CN109206116A (en) | A kind of manufacturing method using industrial tailings and coal ash baking-free brick | |
| CN102690069A (en) | Regeneration method taking construction wastes as cement raw materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150610 |
|
| EXPY | Termination of patent right or utility model |