EP2917163A1 - Verfahren zur herstellung eines hydraulischen bindemittels - Google Patents
Verfahren zur herstellung eines hydraulischen bindemittelsInfo
- Publication number
- EP2917163A1 EP2917163A1 EP13786669.5A EP13786669A EP2917163A1 EP 2917163 A1 EP2917163 A1 EP 2917163A1 EP 13786669 A EP13786669 A EP 13786669A EP 2917163 A1 EP2917163 A1 EP 2917163A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- silicate
- mill
- component
- containing component
- coating
- 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.)
- Ceased
Links
- 239000011230 binding agent Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 42
- 238000000576 coating method Methods 0.000 claims abstract description 41
- 239000011248 coating agent Substances 0.000 claims abstract description 40
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 35
- 239000000378 calcium silicate Substances 0.000 claims abstract description 27
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 12
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910002808 Si–O–Si Inorganic materials 0.000 claims abstract description 4
- 230000004913 activation Effects 0.000 claims abstract description 3
- 239000001257 hydrogen Substances 0.000 claims abstract description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 3
- 239000002344 surface layer Substances 0.000 claims abstract description 3
- 235000012241 calcium silicate Nutrition 0.000 claims description 32
- 239000000126 substance Substances 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000969 carrier Substances 0.000 claims description 10
- JLDKGEDPBONMDR-UHFFFAOYSA-N calcium;dioxido(oxo)silane;hydrate Chemical compound O.[Ca+2].[O-][Si]([O-])=O JLDKGEDPBONMDR-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 229910021487 silica fume Inorganic materials 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000012876 carrier material Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 150000004760 silicates Chemical class 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- -1 calcium silicate compound Chemical class 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 229910001700 katoite Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/14—Minerals of vulcanic origin
- C04B14/18—Perlite
-
- 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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- 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
- C04B18/146—Silica fume
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1077—Cements, e.g. waterglass
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
- C04B22/062—Oxides, Hydroxides of the alkali or alkaline-earth metals
- C04B22/064—Oxides, Hydroxides of the alkali or alkaline-earth metals of the alkaline-earth metals
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0088—Compounds chosen for their latent hydraulic characteristics, e.g. pozzuolanes
-
- 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
- the invention relates to a method for producing a hydraulic binder and to a method for producing a binder mixture by processing a silicate-containing component with calcium silicate hydrate and / or belite-containing components.
- EP 2 243 754 A1 describes a process for the preparation of a hydraulic binder which is based on a calcium silicate compound and has properties similar to those of conventional Portland cement, but in the production of which significantly less CO 2 is liberated.
- a calcium and silicon-containing starting material is first hydrothermally treated at temperatures of 120-250 ° C, whereby a calcium silicate hydrate-containing intermediate product is formed.
- the intermediate is reaction-milled alone at a temperature of 100-150 ° C alone or together with another silicate-containing material, whereby under reaction and dehydration at least partially a belitumbles binder is formed, which is highly reactive and a comparable with Portland cement binder low reaction heat and high Medfestmaschine corresponds.
- the present invention is an object of the invention to provide a method for producing a hydraulic binder, a method for producing a binder mixture and the use of a plant for the two production processes, wherein the proportion of calcium silicate hydrate and / or belitumblen component in Binders can be reduced. According to the invention, this object is achieved by the features of claims 1, 8, 9 and 13.
- the inventive method for producing a hydraulic binder by processing a silicate-containing component with calcium silicate hydrate and / or belit ambiencen components is characterized by the combination of the following two steps:
- the silicate-containing component is comminuted in at least one comminution device to particle sizes of ⁇ 100 ⁇ , wherein for surface activation at least partially Si-O-Si bonds and / or hydrogen bonds in the structure of the surface layer of the silicate-containing component are broken, and
- the silicate-containing component activated in the first step is brought into contact as a silicate-containing carrier with calcium silicate hydrate and / or belite-containing components in a coating device, wherein the calcium silicate hydrate and / or belite-containing components are at least Enrich 50% of the surface of the silicate-containing carrier with a reaction coating.
- a silicate-containing component eg quartz sand, slag or fly ash
- a silicate-containing component eg quartz sand, slag or fly ash
- the basic structure of the silicates is characterized by Si0 4 tetrahedra, whose center consists of a silicon atom and whose four corners each consist of one oxygen atom. Essentially all silicates are built up by linkages of these Si0 4 pyramids.
- roller mill in particular a pendulum roller mill, and / or a roller mill, but preferably high energy mills such as a jet mill, an impact mill, a ball mill, in particular an agitator ball mill, a vibration mill and / or a magnetic mill and a circuit u nd / or combination of these types of mill in question.
- high energy mills such as a jet mill, an impact mill, a ball mill, in particular an agitator ball mill, a vibration mill and / or a magnetic mill and a circuit u nd / or combination of these types of mill in question.
- the thus activated silicate-containing component is then coated as a silicate-containing carrier in a second treatment unit with a calcium silicate hydrate and / or belit ambiencen substance.
- This coating may also be in at least one mill, for example in a ball mill, in particular an agitator ball mill, a vibration mill, a jet mill and / or impact mill, but preferably in a roller mill, in particular a pendulum roller mill, and / or roller mill, and an interconnection and / or combination of these types of mill.
- a magnetic coating according to US Pat. No. 6,037,019 and use of a magnetic mill is also conceivable.
- relatively soft grinding media for example plastic-coated cast iron or magnetic bodies, are used in the coating. The aim of this coating or sheathing is to largely avoid further comminution of the particles and to achieve a coating of the coarser silicate-containing carriers with the calcium silicate hydrate and / or belite-containing components.
- the at least one comminution device in the first method step is operated together with a separator which separates a coarser silicate-containing component from a finer silicate-containing component, so that at least the coarser silicate-containing component is again fed to the at least one comminution device. It can also be provided that a part of the finer silicate-containing component is discharged from the process and possibly used elsewhere or further processed.
- the coating device can intensify the contact between the silicate-containing carriers and the calcium-silicate-hydrate and / or belit ambiencen component loose auxiliary body can be used in the coating device.
- another substance preferably a fines such as microsilica, may be added up to 20% in at least one of the two process steps.
- the calcium silicate hydrate and / or belite-containing component is expediently dewatered before the second process step in at least one separate treatment device and / or activated at elevated temperature of preferably greater than 100 ° C.
- the coating step is expediently likewise carried out at temperatures of at least 100 ° C.
- the coating device provided for the coating can have guide elements and / or stirring elements and / or loose auxiliary bodies.
- the material coming from the coating device can optionally be supplied to a separating device 9. This separates the predominantly completely coated substances 1 'from the incompletely coated substances 1 ", which would lead to a return to the coating device or to the discharge of the finished product
- the finished product could serve as a binder or as an additive for a binder mixture
- the finished product could be mixed with substances 11, such as fly ash, clinker flour, various types of slag, Portland cement, limestone powder or various mixtures of these substances
- the substances should have corresponding subtleties, so that the final product can serve as a binder mixture.
- a further variant could likewise be that the substances listed above, in particular also limestone as inert filler, are fed together with the silicate-containing carriers to the comminuting device (process step 1) and comminuted or ground together. This has the advantage of saving an additional and costly comminution process.
- Fig. 1 is a block diagram of a plant for producing a hydraulic
- Binder and / or a binder mixture and Fig. 2 is an X-ray diffractogram of calcium silicate hydrate-containing
- the plant shown in FIG. 1 for producing a hydraulic binder 1 and / or a binder mixture 12 has a comminution device 2 for comminuting silicate-containing carriers 3 and / or further substances 11 'to particle sizes of ⁇ 100 ⁇ m, and a subsequently arranged coating device 4 with a first feeder 4a for the silicate-containing carrier 3 a comminuted in the comminuting device 2 and a second feed 4b for a calcium silicate-hydrate and / or belite-containing component 5.
- the comminution device 2 is operated together with a classifier 6 which separates coarser carriers 3b from finer carriers, at least the coarser carriers 3b being fed again to the comminution device 2, while the finer carriers as activated silicate-containing carrier 3a together with the calcium silicate carrier. Hydrate and / or belit ambiencen component 5 of the coating device 4 are supplied.
- the crushing device 2 and the coating device 4 may each be operated by a (agitator) ball mill, a vibration mill, a magnetic mill, a (shuttle) roller mill, a roller mill, an impact mill or a jet mill or the like. An interconnection and / or combination of these types of mill is conceivable.
- auxiliary bodies are used both in the comminution device 2 and in the coating device 4, relatively soft auxiliary bodies are used in the coating device 4.
- auxiliary bodies are used both in the comminution device 2 and in the coating device 4
- relatively soft auxiliary bodies are used in the coating device 4.
- further comminution of the silicate-containing carriers is largely avoided and intimate contact with the calcium-silicate-hydrate and / or belit ambiencen component allows to achieve a coating of the surface of the silicate-containing carrier of at least 50%, preferably at least 80%.
- the coating device 4 can also be fed with a further substance 7, preferably a fine substance, such as microsilica, up to 20%.
- the coating in the coating device 4 is advantageously carried out at a temperature of at least 100 C.
- the calcium silicate hydrate and / or belitance component 5 can be dehydrated before being fed into the coating device 4 in at least one separate treatment device 8 and / or activated at elevated temperature of preferably 100 ° C and / or subjected to a heat pressure treatment.
- the product can be used as a binder.
- the coater may be followed by a mixing or screening device. In this then hydraulic and / or latent hydraulic substances, such as clinker, fly ash, steel mill and / or blast furnace slag, OPC or mixtures of these substances are mixed, so that a binder mixture with low C0 2 emissions.
- inert fillers especially limestone flour, is possible.
- quartz sand is activated as a silicate-containing carrier by grinding and then reaction-coated with aC 2 SH as a calcium silicate hydrate component.
- aC 2 SH as a calcium silicate hydrate component.
- other substances such as, for example, slag and / or fly ash can be added to the grinding process together with quartz sand and activated.
- Quartz sand was used with a particle size fraction of 90 ⁇ to 250 ⁇ .
- the silicate-containing carrier activated after treatment in a disk-vibrating mill had, according to analysis with a laser diffraction spectrometer, an average particle size of about 6 ⁇ m.
- aC 2 SH with a mean particle size of less than 20 ⁇ m was reaction-coated together with the activated quartz in a mass ratio of 2: 1 in a disk vibration mill. From the Analysis with the laser diffraction spectrometer, a mean particle size of about 5 ⁇ was determined for the resulting hydraulic binder.
- Table 1 shows the results of the quantitative X-ray diffraction analyzes.
- the calcium silicate hydrate component contained 81% aC 2 SH, some portlandite and calcite, further CSH phases (kilchoanite, foshagite) and a calcium aluminate phase (katoite, 9%).
- the hydraulic binder obtained after the reaction coating was determined to be 60% amorphous, 7% crystalline aC 2 SH and 33% quartz.
- the X-ray diffractogram of FIG. 2 shows for the calcium silicate hydrate component signals of the aC 2 SH, which is present as a main component. After reaction coating with activated quartz in the disk vibratory mill, the reflections of the aC 2 SH decrease markedly, while at the same time the background signal rises sharply due to the formation of amorphous phases.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Paints Or Removers (AREA)
- Glanulating (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201210110743 DE102012110743A1 (de) | 2012-11-09 | 2012-11-09 | Verfahren zur Herstellung eines hydraulischen Bindemittels |
| PCT/EP2013/073159 WO2014072337A1 (de) | 2012-11-09 | 2013-11-06 | Verfahren zur herstellung eines hydraulischen bindemittels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2917163A1 true EP2917163A1 (de) | 2015-09-16 |
Family
ID=49551601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13786669.5A Ceased EP2917163A1 (de) | 2012-11-09 | 2013-11-06 | Verfahren zur herstellung eines hydraulischen bindemittels |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9878946B2 (de) |
| EP (1) | EP2917163A1 (de) |
| DE (1) | DE102012110743A1 (de) |
| WO (1) | WO2014072337A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3501323A (en) * | 1963-08-19 | 1970-03-17 | Colonial Sugar Refining | Method of manufacturing building structural and paving products using a calcium silicate hydrate bonding matrix |
| JPH08325077A (ja) * | 1995-03-27 | 1996-12-10 | Ngk Insulators Ltd | 潜在水硬性粒子を含有する固化物 |
| JPH1129349A (ja) * | 1997-07-14 | 1999-02-02 | Takenaka Komuten Co Ltd | セメント組成物 |
| US6037019A (en) * | 1995-08-24 | 2000-03-14 | 3M Innovative Properties Company | Process for making particle-coated solid substrates |
| EP2243754A1 (de) * | 2009-04-23 | 2010-10-27 | Karlsruher Institut für Technologie | Verfahren zur Herstellung eines belithaltigen Bindemittels |
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|---|---|---|---|---|
| DE19548645A1 (de) * | 1995-12-14 | 1997-06-19 | Witega Angewandte Werkstoff Forschung Gemeinnuetzige Gmbh Adlershof | Verfahren zur Herstellung von hochwertigen Sekundärrohstoffen aus sortenreinem Abbruchmaterial von Bauwerken |
| JP2011153057A (ja) | 2010-01-28 | 2011-08-11 | Taiheiyo Cement Corp | 中空粒子の製造方法 |
| DE102012106658B3 (de) * | 2012-07-23 | 2013-09-26 | ThyssenKrupp Resource Technologies AG | Verwendung hydratationsbeschleunigender Keime als Zusatzstoff für Zement und/oder Beton |
-
2012
- 2012-11-09 DE DE201210110743 patent/DE102012110743A1/de not_active Ceased
-
2013
- 2013-11-06 US US14/441,776 patent/US9878946B2/en not_active Expired - Fee Related
- 2013-11-06 WO PCT/EP2013/073159 patent/WO2014072337A1/de not_active Ceased
- 2013-11-06 EP EP13786669.5A patent/EP2917163A1/de not_active Ceased
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|---|---|---|---|---|
| US3501323A (en) * | 1963-08-19 | 1970-03-17 | Colonial Sugar Refining | Method of manufacturing building structural and paving products using a calcium silicate hydrate bonding matrix |
| JPH08325077A (ja) * | 1995-03-27 | 1996-12-10 | Ngk Insulators Ltd | 潜在水硬性粒子を含有する固化物 |
| US6037019A (en) * | 1995-08-24 | 2000-03-14 | 3M Innovative Properties Company | Process for making particle-coated solid substrates |
| JPH1129349A (ja) * | 1997-07-14 | 1999-02-02 | Takenaka Komuten Co Ltd | セメント組成物 |
| EP2243754A1 (de) * | 2009-04-23 | 2010-10-27 | Karlsruher Institut für Technologie | Verfahren zur Herstellung eines belithaltigen Bindemittels |
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| KUMAR S ET AL: "Mechanical activation of granulated blast furnace slag and its effect on the properties and structure of portland slag cement", CEMENT AND CONCRETE COMPOSITES, ELSEVIER APPLIED SCIENCE, BARKING, GB, vol. 30, no. 8, 1 September 2008 (2008-09-01), pages 679 - 685, XP023315927, ISSN: 0958-9465, [retrieved on 20080528], DOI: 10.1016/J.CEMCONCOMP.2008.05.005 * |
| See also references of WO2014072337A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014072337A1 (de) | 2014-05-15 |
| US20150307398A1 (en) | 2015-10-29 |
| DE102012110743A1 (de) | 2014-05-15 |
| US9878946B2 (en) | 2018-01-30 |
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