WO2010045898A1 - Cementitious binder and method for its preparation - Google Patents
Cementitious binder and method for its preparation Download PDFInfo
- Publication number
- WO2010045898A1 WO2010045898A1 PCT/CZ2009/000124 CZ2009000124W WO2010045898A1 WO 2010045898 A1 WO2010045898 A1 WO 2010045898A1 CZ 2009000124 W CZ2009000124 W CZ 2009000124W WO 2010045898 A1 WO2010045898 A1 WO 2010045898A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ashes
- fly
- binder
- clinker
- cement
- Prior art date
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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
- C04B28/02—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
-
- 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
- C04B28/023—Barium 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
- 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
- C04B28/04—Portland 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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
- C04B2111/1018—Gypsum free or very low gypsum content cement compositions
-
- 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
Definitions
- Binder particularly cement and a method for production of the binder
- the invention relates to binders, in particular cement, that contain fluid ashes of suitable physical characteristics and chemical composition that are obtained as light ashes from cyclone and filtration equipment of fluid combustion technologies.
- the invention also comprises a method for production of these binders.
- Fluid fly-ashes are generated in large quantities especially when fuel that is rich in ballast is burnt, i.e. when the method of fiuidized bed combustion is used.
- siliceous fly-ashes and calcareous fiy-ashes are used for further processing. These types of fly-ash are obtained mainly by electrostatic or mechanical separation of dust particles from gases of combustion chambers where finely ground coal is used as fuel at the temperatures of approx. 1400 to 1600 0 C.
- Siliceous fly-ash is fine powder consisting mainly of ball-like vitreous particles with pozzolana properties. It must mainly consist of active silicon dioxide (SiO 2 ) and aluminium oxide (Al 2 Os).
- Calcareous fly-ash is fine powder with hydraulic and/or pozzolana properties. It must mainly consist of active calcium oxide (CaO), active silicon dioxide (SiO 2 ) and aluminium oxide (AI 2 O 3 ).
- the chemical composition of individual fly-ash types is highly variable and depends on the type and quality of coal and combustion conditions.
- Fluid fly-ashes are characterized with a higher content of calcium (Ca), which is added to the combustion process generally in the limestone (CaCO 3 ) form for the purpose of desulphurization.
- the crystalline phase consists of the following new mineralogical formations: anhydrite-CaSO 4 , ⁇ ortlandite-Ca(OH) 2 , gypsum-CaSO 4 .2H 2 O, calcite-CaCO 3 , quartz-SiO 2 , hematite-Fe 2 ⁇ 3 , magnetite-Fe 3 O 4 , basanite-CaSO 3 .l/2H 2 O, ettringite-
- Fly-ashes can be classified into active and inactive by its hydraulicity:
- fly-ashes A part of these fly-ashes is still being deposited in dumping sites as unprocessed at the price of continuously growing costs and contamination of the environment.
- fly-ashes as a replacement cement component
- Another disadvantage is the time course of the reaction between the fly-ash and calcium hydroxide, when the pozzolana reaction only starts to be shown in the obtained strength after 28 days under the conditions of standard ageing, but sometimes even after 60 and 90 days.
- fluid fly-ashes can be mainly added to cement clinker, to siliceous and/or calcareous fly-ashes, and/or other components of cement comprising slag, pozzolana, tuff, diatomaceous earth, etc. thanks to their physical - chemical properties.
- the subject matter of the invention is a binder agent, in particular cement that contains, based on the total weight of the mixture, up to 99 % of cement clinker by weight, from 0.5 to 99 % of fluid fly-ashes by weight, up to 99 % by weight of siliceous fly-ashes and/or calcareous fly- ashes and/or other components selected from the group comprising slag, pozzolana, tuff, diatomaceous earth, etc. while the rest consists of impurities.
- a binder agent in particular cement that contains, based on the total weight of the mixture, up to 99 % of cement clinker by weight, from 0.5 to 99 % of fluid fly-ashes by weight, up to 99 % by weight of siliceous fly-ashes and/or calcareous fly- ashes and/or other components selected from the group comprising slag, pozzolana, tuff, diatomaceous earth, etc. while the rest consists of impurities.
- Cement clinker is preferably any clinker known from the prior art, in particular Portland clinker, aluminate clinker, barium clinker, strontium clinker, etc.
- the above mentioned clinker may or may not contain any setting-time controller.
- a preferable setting-time controller is gypsum - CaSO 4 .2H 2 O.
- Fluid fly-ashes in accordance with the invention preferably contain at least 0.1 % of main oxides selected from the group comprising SiO 2 , Al 2 O 3 , Fe 2 O 3 , CaO and at least 0.01 % of secondary oxides selected from the group comprising FeO, Cr 2 O 3 , P 2 O 5 , MgO, MnO, K 2 O, Na 2 O, SO 3 based on the total weight of the oxides and having the loss on ignition up to 15 % by weight.
- main oxides selected from the group comprising SiO 2 , Al 2 O 3 , Fe 2 O 3 , CaO and at least 0.01 % of secondary oxides selected from the group comprising FeO, Cr 2 O 3 , P 2 O 5 , MgO, MnO, K 2 O, Na 2 O, SO 3 based on the total weight of the oxides and having the loss on ignition up to 15 % by weight.
- the bulk density of fluid fly-ash is preferably 300 to 950 kg/m 3 and the tapped density is preferably 500 to 1200 kg/m 3 .
- the solution according to the invention also comprises a method for the production of the above mentioned binder, preferably e.g. cement while fluid fly-ashes are added to the cement clinker and/or to siliceous fly-ashes and/or to calcareous fly-ashes and/or to other components selected from the group comprising slag, pozzolana, tuffs, diatomaceous earth, etc. before grinding, in the course of grinding or after grinding of the cement clinker and/or fly-ashes and/or the other components.
- binder preferably e.g. cement while fluid fly-ashes are added to the cement clinker and/or to siliceous fly-ashes and/or to calcareous fly-ashes and/or to other components selected from the group comprising slag, pozzolana, tuffs, diatomaceous earth, etc. before grinding, in the course of grinding or after grinding of the cement clinker and/or fly-ashes and/or the other components.
- a mortar prepared from this cement at the ratio of cement and sand of 1 :3 with continuous grain size (standard sand) that is stored in the form of bodies with the dimensions of 4x4x16 for 24 hours in a saturated water steam medium is left in water at the temperature of 20 0 C for 28 days. After 48 hours the bodies exhibit compressive strength of 17 MPa and bending strength of 3.4 MPa, after 7 days compressive strength of 25 MPa and bending strength of 4.6 MPa and after 28 days compressive strength of
- a mortar prepared from this cement at the ratio of cement and sand of 1:3 with continuous grain size (standard sand) that is stored in the form of bodies with the dimensions of 4x4x16 for 24 hours in a saturated water steam medium is left in water with the temperature of 20 0 C for 28 days. After 48 hours the bodies exhibit compressive strength of 14 MPa and bending strength of 3.1 MPa, after 7 days compressive strength of 23 MPa and bending strength of 4.5 MPa and after 28 days compressive strength of 35 MPa and bending strength of 5.5 MPa.
- fluid fly-ashes can be used mainly for the production of various kinds of binders, particularly cements.
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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 binder, particularly cement, contains, based on the total weight of the mixture, up to 99 % of cement clinker by weight, from 0.5 to 99 % of fluid fly-ashes by weight, up to 99 % of siliceous fly-ashes by weight and/or calcaeous fly-ashes and/or other components selected from the group comprising slag, pozzolana, tuffs, diatomaceous earth, etc. while the rest consists of impurities. A method for the production of the binder is also claimed.
Description
Binder, particularly cement and a method for production of the binder
Technical Field
The invention relates to binders, in particular cement, that contain fluid ashes of suitable physical characteristics and chemical composition that are obtained as light ashes from cyclone and filtration equipment of fluid combustion technologies. The invention also comprises a method for production of these binders.
Background Art
Fluid fly-ashes are generated in large quantities especially when fuel that is rich in ballast is burnt, i.e. when the method of fiuidized bed combustion is used.
At the same time it is known from the prior art that characteristics as workability of mixtures in building industry, the time of their setting and subsequent hardening, the initial and long-term strength can be influenced and controlled with the use of so-called active ingredients that also comprise power-plant fly-ashes.
At present, mainly siliceous fly-ashes and calcareous fiy-ashes are used for further processing. These types of fly-ash are obtained mainly by electrostatic or mechanical separation of dust particles from gases of combustion chambers where finely ground coal is used as fuel at the temperatures of approx. 1400 to 16000C. Siliceous fly-ash is fine powder consisting mainly of ball-like vitreous particles with pozzolana properties. It must mainly consist of active silicon dioxide (SiO2) and aluminium oxide (Al2Os). Calcareous fly-ash is fine powder with hydraulic and/or pozzolana properties. It must mainly consist of active calcium oxide (CaO), active silicon dioxide (SiO2) and aluminium oxide (AI2O3). The chemical composition of individual fly-ash types is highly variable and depends on the type and quality of coal and combustion conditions.
Fluid fly-ashes are characterized with a higher content of calcium (Ca), which is added to the combustion process generally in the limestone (CaCO3) form for the purpose of desulphurization. The crystalline phase consists of the following new mineralogical formations:
anhydrite-CaSO4, ρortlandite-Ca(OH)2, gypsum-CaSO4.2H2O, calcite-CaCO3, quartz-SiO2, hematite-Fe2θ3, magnetite-Fe3O4, basanite-CaSO3.l/2H2O, ettringite-
Ca6Al2(SO4)3(OH)12.26H2O, hanebachite-CaSO3.l/2H2O3 traumasite-
Ca6Si2(S04)2(C03)2(OH)12.24H20, tobermorite-Ca5Si6016(OH)2.H20.
Fly-ashes can be classified into active and inactive by its hydraulicity:
Active components:
• Hydraulic amorphous (amorphous basic slags with a high content OfAl2O3, a part of the vitreous phase, active SiO2);
• Hydraulic crystalline (meta-kaolinite, aluminates);
• Non-hydraulic (CaO, MgO, anhydride);
• Exciters (sulphides, alkaline salts).
Inactive components:
• Unburned coal;
• Slag with a high content of SiO2;
• Crystalline constituents (quartz, mullite).
A part of these fly-ashes is still being deposited in dumping sites as unprocessed at the price of continuously growing costs and contamination of the environment.
One of the disadvantages of using fly-ashes as a replacement cement component is a reduction of the initial strength of mortar and/or concrete during the first seven days, when a rapid growth of strength is required.
Another disadvantage is the time course of the reaction between the fly-ash and calcium hydroxide, when the pozzolana reaction only starts to be shown in the obtained strength after 28 days under the conditions of standard ageing, but sometimes even after 60 and 90 days.
So in the prior art no successful use of fluid fly-ash as a component for the production of a binder, in particular cement, is known, with regard to the above mentioned undesirable characteristics of these types of fly-ashes.
Disclosure of the invention
According to the present invention it has been surprisingly found out that for the production of a binder, in particular cement, fluid fly-ashes can be mainly added to cement clinker, to siliceous and/or calcareous fly-ashes, and/or other components of cement comprising slag, pozzolana, tuff, diatomaceous earth, etc. thanks to their physical - chemical properties.
The subject matter of the invention is a binder agent, in particular cement that contains, based on the total weight of the mixture, up to 99 % of cement clinker by weight, from 0.5 to 99 % of fluid fly-ashes by weight, up to 99 % by weight of siliceous fly-ashes and/or calcareous fly- ashes and/or other components selected from the group comprising slag, pozzolana, tuff, diatomaceous earth, etc. while the rest consists of impurities.
Cement clinker is preferably any clinker known from the prior art, in particular Portland clinker, aluminate clinker, barium clinker, strontium clinker, etc.
The above mentioned clinker may or may not contain any setting-time controller. In the positive case a preferable setting-time controller is gypsum - CaSO4.2H2O.
Fluid fly-ashes in accordance with the invention preferably contain at least 0.1 % of main oxides selected from the group comprising SiO2, Al2O3, Fe2O3, CaO and at least 0.01 % of secondary oxides selected from the group comprising FeO, Cr2O3, P2O5, MgO, MnO, K2O, Na2O, SO3 based on the total weight of the oxides and having the loss on ignition up to 15 % by weight.
The bulk density of fluid fly-ash is preferably 300 to 950 kg/m3 and the tapped density is preferably 500 to 1200 kg/m3.
The solution according to the invention also comprises a method for the production of the above mentioned binder, preferably e.g. cement while fluid fly-ashes are added to the cement clinker and/or to siliceous fly-ashes and/or to calcareous fly-ashes and/or to other components selected from the group comprising slag, pozzolana, tuffs, diatomaceous earth, etc. before
grinding, in the course of grinding or after grinding of the cement clinker and/or fly-ashes and/or the other components.
Processing of fluid fly-ashes for the production of a binder, as e.g. cement, is convenient from the economical as well as environmental point of view in accordance with the invention since for the time being it is not adequately used and is deposited in dumping sites.
Best Mode for Carrying Out of the Invention:
Example 1
20 % of fluid fly-ash, based on the weight of the clinker, is added to finely ground cement clinker with the specific surface of 450 m2.kg"\ Paste having W=0.5 is prepared from the obtained cement that starts to set after 180 minutes. A mortar prepared from this cement at the ratio of cement to sand of 1:3 with continuous grain size (standard sand) that is stored in the form of bodies with the dimensions of 4x4x16 for 24 hours in a saturated water steam medium is left in water at the temperature of 2O0C for 28 days. After 48 hours the bodies exhibit compressive strength of 21 MPa and bending strength of 4.2 MPa, after 7 days compressive strength of 36 MPa and bending strength of 5.6 MPa and after 28 days compressive strength of 45 MPa and bending strength of 8.2 MPa.
Example 2
35 % of fluid fly-ash, based on the weight of the clinker, is added to finely ground cement clinker with the specific surface of 450 m2.kg"1. Paste having W=0.4 is prepared from the obtained cement that starts to set after 280 minutes. A mortar prepared from this cement at the ratio of cement and sand of 1 :3 with continuous grain size (standard sand) that is stored in the form of bodies with the dimensions of 4x4x16 for 24 hours in a saturated water steam medium is left in water at the temperature of 200C for 28 days. After 48 hours the bodies exhibit compressive strength of 17 MPa and bending strength of 3.4 MPa, after 7 days compressive strength of 25 MPa and bending strength of 4.6 MPa and after 28 days compressive strength of
37 MPa and bending strength of 5.8 MPa.
Example 3
40 % of fluid fly-ash, based on the weight of the clinker and 15 % of siliceous fly-ash, based on the weight of the clinker, are added to finely ground cement clinker with the specific surface of 450 m^kg"1. Paste having W=0.47 is prepared from the obtained cement that starts to set after 320 minutes. A mortar prepared from this cement at the ratio of cement and sand of 1:3 with continuous grain size (standard sand) that is stored in the form of bodies with the dimensions of 4x4x16 for 24 hours in a saturated water steam medium is left in water with the temperature of 200C for 28 days. After 48 hours the bodies exhibit compressive strength of 14 MPa and bending strength of 3.1 MPa, after 7 days compressive strength of 23 MPa and bending strength of 4.5 MPa and after 28 days compressive strength of 35 MPa and bending strength of 5.5 MPa.
The examples were performed in accordance with the CSN EN 196-1, CSN EN 196-2, CSN EN 196-3, CSN EN 196-6 and CSN 722113 standards.
Industrial Applicability
In accordance with the invention fluid fly-ashes can be used mainly for the production of various kinds of binders, particularly cements.
Claims
1. A binder, particularly cement, characterized in that it contains, based on the total weight of the mixture, up to 99 % of cement clinker by weight, from 0.5 to 99 % of fluid fly-ashes by weight, up to 99 % by weight of siliceous fly-ashes and/or calcareous fly- ashes and/or other components selected from the group comprising slag, pozzolana, tuffs, diatomaceous earth, etc. while the rest consists of impurities.
2. The binder in accordance with claim ^ characterized in that the fluid fly- ashes contain at least 0.1 % of main oxides selected from the group comprising SiO2, Al2O3, Fe2O3, CaO and at least 0.01 % of secondary oxides selected from the group comprising FeO, Cr2O3, P2O5, MgO, MnO, K2O, Na2O, SO3 based on the total weight of the oxides and having the loss on ignition up to 15 % by weight.
3. The binder in accordance with claim 1 or 2, characterized in that the bulk density of fluid fly-ashes is 300 to 950 kg/m3 and the tapped density is 500 to 1200 kg/m3.
4. The binder in accordance with any of claims 1 to 3, characterized in that the cement clinker is Portland clinker, aluminate clinker, barium clinker, strontium clinker, etc.
5. The binder in accordance with any of claims 1 to 4, characterized in that the cement clinker contains setting-time controller or the cement clinker is free of setting-time controller.
6. The binder in accordance with claim 5, characterized in that the setting-time controller is gypsum - CaSO4.2H2O.
7. A method for the production of the binder in accordance with claims 1 to 6, c h a ra ct eriz e d in th at the fluid fly-ashes are added to the cement clinker and/or to siliceous fly-ashes and/or to calcareous fly-ashes and/or to other components selected from the group comprising slag, pozzolana, tuffs, diatomaceous earth, etc. before grinding, in the course of grinding or after grinding of the cement clinker and/or fly-ashes and/or the other components.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZPV2008-662 | 2008-10-23 | ||
| CZ20080662A CZ2008662A3 (en) | 2008-10-23 | 2008-10-23 | Binding agent, especially cement and process for producing such binding agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010045898A1 true WO2010045898A1 (en) | 2010-04-29 |
Family
ID=41716306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CZ2009/000124 WO2010045898A1 (en) | 2008-10-23 | 2009-10-20 | Cementitious binder and method for its preparation |
Country Status (2)
| Country | Link |
|---|---|
| CZ (1) | CZ2008662A3 (en) |
| WO (1) | WO2010045898A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694208A (en) * | 2017-10-20 | 2019-04-30 | 谢思松 | A kind of powder curing agent and preparation method thereof for expanded perlite thermal-nsulation plate |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ305487B6 (en) * | 2013-02-28 | 2015-10-29 | Vysoká škola chemicko-technologická v Praze | Treatment process of energy-bearing products |
| CZ2014431A3 (en) * | 2014-06-24 | 2015-08-12 | Vysoká škola chemicko-technologická v Praze | Process for preparing cellular silicates without use of autoclave from energy products |
| CZ308680B6 (en) * | 2018-11-21 | 2021-02-17 | České vysoké učení technické v Praze | Sprayed concrete |
| CZ308486B6 (en) * | 2019-06-10 | 2020-09-16 | Vysoká škola chemicko-technologická v Praze | Hydraulic binder, building material, a method of their production and use of a hydraulic binder |
| CZ2020296A3 (en) * | 2020-05-25 | 2021-07-07 | Vysoká škola chemicko-technologická v Praze | Composite hydraulic binder, producing and using it |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1646439A1 (en) * | 1966-05-16 | 1971-07-15 | Cecomex Zement Und Beton Verwe | Silicate fused cement |
| DE1646959A1 (en) * | 1967-02-16 | 1971-08-12 | Hans Ruhr | Binder mixture based on cement and / or lime with filter ash |
| DD259751A3 (en) * | 1986-06-02 | 1988-09-07 | Zementkombinat Veb | PROCESS FOR PRODUCING HYDRAULIC BINDER FROM FILTER BAGS |
| DD271320A1 (en) * | 1988-04-04 | 1989-08-30 | Dessau Zementanlagenbau Veb | METHOD FOR RECYCLING BACKINGS FROM SWIVEL LAYER COMBUSTION |
| US6277189B1 (en) * | 1999-08-31 | 2001-08-21 | The Board Of Trustees Of Southern Illinois University | Coal combustion by-products-based lightweight structural materials and processes for making them |
-
2008
- 2008-10-23 CZ CZ20080662A patent/CZ2008662A3/en unknown
-
2009
- 2009-10-20 WO PCT/CZ2009/000124 patent/WO2010045898A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1646439A1 (en) * | 1966-05-16 | 1971-07-15 | Cecomex Zement Und Beton Verwe | Silicate fused cement |
| DE1646959A1 (en) * | 1967-02-16 | 1971-08-12 | Hans Ruhr | Binder mixture based on cement and / or lime with filter ash |
| DD259751A3 (en) * | 1986-06-02 | 1988-09-07 | Zementkombinat Veb | PROCESS FOR PRODUCING HYDRAULIC BINDER FROM FILTER BAGS |
| DD271320A1 (en) * | 1988-04-04 | 1989-08-30 | Dessau Zementanlagenbau Veb | METHOD FOR RECYCLING BACKINGS FROM SWIVEL LAYER COMBUSTION |
| US6277189B1 (en) * | 1999-08-31 | 2001-08-21 | The Board Of Trustees Of Southern Illinois University | Coal combustion by-products-based lightweight structural materials and processes for making them |
Non-Patent Citations (4)
| Title |
|---|
| LOTZE, J. & WARGALLA, G.: "Kenndaten und Verwertungsmöglichkeiten von Aschen aus einer Feuerungsanlage mit zirkulierender Wirbelschicht: Teil I", ZEMENT KALK GIPS, vol. 7, 1 July 1985 (1985-07-01), pages 374 - 378, XP002571240 * |
| LOTZE, J. & WARGALLA, G.: "Kenndaten und Verwertungsmöglichkeiten von Aschen aus einer Feuerungsanlage mit zirkulierender Wirbelschicht: Teil II", ZEMENT KALK GIPS, vol. 5, 1 May 1985 (1985-05-01), pages 239 - 243, XP002571241 * |
| MALHOTRA, V.M.: "Supplementary Cementing Materials for Concrete", 1 January 1987, CANMET, Ottawa, ISBN: 0660125501, XP002571239 * |
| ROSZCZYNIALSKI W ET AL: "Studies of cementitious systems with new generation by-products from fluidised bed combustion", JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, KLUWER ACADEMIC PUBLISHERS, DO, vol. 77, no. 1, 1 July 2004 (2004-07-01), pages 151 - 158, XP019255090, ISSN: 1572-8943 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694208A (en) * | 2017-10-20 | 2019-04-30 | 谢思松 | A kind of powder curing agent and preparation method thereof for expanded perlite thermal-nsulation plate |
| CN109694208B (en) * | 2017-10-20 | 2021-09-03 | 谢思松 | Powder curing agent for expanded perlite insulation board and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ2008662A3 (en) | 2010-05-05 |
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