EP0879216A1 - Zementzusammensetzung - Google Patents
ZementzusammensetzungInfo
- Publication number
- EP0879216A1 EP0879216A1 EP97945655A EP97945655A EP0879216A1 EP 0879216 A1 EP0879216 A1 EP 0879216A1 EP 97945655 A EP97945655 A EP 97945655A EP 97945655 A EP97945655 A EP 97945655A EP 0879216 A1 EP0879216 A1 EP 0879216A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- cement
- cement composition
- composition according
- synthetic
- 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.)
- Withdrawn
Links
- 239000004568 cement Substances 0.000 title claims abstract description 44
- 239000000203 mixture Substances 0.000 title claims abstract description 25
- 239000012190 activator Substances 0.000 claims abstract description 10
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims abstract description 8
- 239000011398 Portland cement Substances 0.000 claims abstract description 7
- 125000000129 anionic group Chemical group 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 150000003871 sulfonates Chemical class 0.000 claims abstract description 4
- 239000002893 slag Substances 0.000 claims description 13
- 239000003945 anionic surfactant Substances 0.000 claims description 6
- 238000004056 waste incineration Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920001732 Lignosulfonate Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 claims 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 description 6
- 239000004606 Fillers/Extenders Substances 0.000 description 5
- 230000036571 hydration Effects 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 229910021487 silica fume Inorganic materials 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/12—Natural pozzuolanas; Natural pozzuolana cements; Artificial pozzuolanas or artificial pozzuolana cements other than those obtained from waste or combustion residues, e.g. burned clay; Treating inorganic materials to improve their pozzuolanic characteristics
- C04B7/13—Mixtures thereof with inorganic cementitious materials, e.g. Portland 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
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S106/00—Compositions: coating or plastic
- Y10S106/01—Fly ash
Definitions
- the invention relates to a cement composition containing a) 10 to 35% by weight of cement, in particular Portland cement b) 65 to 90% by weight of a synthetic pozzolana, which is obtained by at least partial reduction from combustion residues with an SiO 2 / CaO ratio> 1
- a synthetic pozzolana which is obtained by at least partial reduction from combustion residues with an SiO 2 / CaO ratio> 1
- waste incineration slag was obtained and contains alkali oxides (Na 2 0 and K0) in amounts of more than 1.5% by weight
- an activator for reducing the positive surface potential of the synthetic puzzolane such as, for example, anionic or anionic surfactants, in particular Sulfonates.
- cement compositions in which, in addition to cement, and in particular Portland cement, more or less large proportions of extenders or fillers are known. It has also been proposed to use cement together with natural puzzolanes or synthetic pozzolans as well as carbonates as extenders, with most of these extenders or fillers having restrictions only because of the desired strength values. In the case of individual mixtures of this type, segregation can occur through sedimentation, which applies in particular to fly ash, sand or blast furnace slag. The risk of segregation due to sedimentation exists particularly in the case of low surface charges, puzzolans, fly ash, microsilica and blast furnace slag generally having only a small to significantly negative surface charge.
- DE-Al 31 05 054 describes mixtures for the production of concrete containing coarse and / or fine-grained aggregates, containing 70 to 35% by weight of cement and 30 to 65% by weight of latent hydraulic substances, and 0.05 to 1 wt .-% of a dispersant, such as lignin sulfonates, have become known. With increasing amounts of synthetic pozzolans, decreasing strength values were measured in DE-Al 31 05 054.
- Synthetic pozzolans and in particular those obtained by at least partial reduction from combustion residues with an SiO 2 / CaO ratio> 1, such as waste incineration slags, and containing alkali oxides in quantities of more than 1.5% by weight are distinguished by a positive surface charge.
- the addition of such synthetic pozzolans has therefore usually not led to an improvement in the strength properties, in particular the early strength. Due to agglomerate formation, the mixed cement also has poor processability. As expected, such cement mixes fell far short of the early strength values for Portland cement or cement compositions with other extenders or fillers.
- cement compositions which a) 10 to 35% by weight of cement, in particular Portland cement b) 65 to 90% by weight of a synthetic pozzolana, which are obtained by at least partial reduction from combustion residues with an SiO 2 / CaO Ratio> 1, such as waste incineration slag obtained and containing alkali oxides (Na 2 0 and K 2 0) in quantities of more than 1.5% by weight, can be brought to values in their early strength values which correspond to the best known standard cement are not only on a par but are even superior if an activator for reducing the positive surface potential of the synthetic puzzolane, such as anionic or anionic surfactants, is also added.
- an activator for reducing the positive surface potential of the synthetic puzzolane such as anionic or anionic surfactants
- the high alkali oxide content like it is observed in particular in acidic slags, leads to a surface charge by sodium and potassium ions, the pozzolanic hydration requiring a relatively high density or small particle spacing of the material. Due to the positive surface charge, the particles are repelled without the activators and thus to a lower particle density, which prevents or hinders hydration and thus a contribution to increasing strength. These surface charges can now be compensated for by the activators mentioned, as a result of which the pozzolanic particles no longer repel one another and a higher density and overall better hydration is made possible. Even with relatively high proportions of such slags or synthetic pozzolans in the cement composition, excellent early strength values and outstanding final strength values could be achieved.
- the cement composition contains activators in amounts of 1 to 3% by weight.
- pozzolans can preferably be contained in an amount of 65 to 70% by weight, surprisingly, despite this high amount of pozzolans, outstanding strength properties have been found.
- activator from the group of the organic sulfonates for example lignin sulfonate or naphthalene sulfonate, can be added in amounts of 1.0 to 2.0% by weight, preferably 1.5% by weight.
- a particularly high final strength can be achieved if, as in a preferred development, the puzzolan is ground to a fineness of 3000 to 6000 cm 2 / g.
- the anionic or anionic surfactants can be added during the manufacture of the cement composition. Alternatively, it can be carried out in a particularly simple manner in such a way that the anion-active or anionic surfactants are added together with water during the production of the concrete or mortar.
- the effect of the activators is particularly evident in the case of synthetic pozzolans with a high alkali oxide content, preference being given to using synthetic pozzolans whose Na 2 0 and K 2 0 content is selected to be greater than 2% by weight.
- the laboratory cement LZ1 (column II) consisted of 60% by weight of the reference cement, to which 40% by weight limestone was ground.
- the result of the extender here is that, with good early strengths, the final strength remains significantly lower.
- the laboratory cement LZ2 (column III) consisted of 30% by weight of the standard cement listed in the first column and 70% by weight of a pozzolana slag, which was obtained from waste incineration slag by partial reduction.
- the puzzolan selected was added in a total amount of 70% by weight and had an SiO 2 / CaO ratio> 1 and alkali oxides in amounts of more than 1.5% by weight. The values that can be achieved in this way show that the early strength decreases significantly when such pozzolana slags are added.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT208296 | 1996-11-29 | ||
| AT2082/96 | 1996-11-29 | ||
| PCT/AT1997/000256 WO1998023550A1 (de) | 1996-11-29 | 1997-11-21 | Zementzusammensetzung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0879216A1 true EP0879216A1 (de) | 1998-11-25 |
Family
ID=3527377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97945655A Withdrawn EP0879216A1 (de) | 1996-11-29 | 1997-11-21 | Zementzusammensetzung |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6036768A (cs) |
| EP (1) | EP0879216A1 (cs) |
| JP (1) | JP2000504301A (cs) |
| CA (1) | CA2244259A1 (cs) |
| CZ (1) | CZ268598A3 (cs) |
| HU (1) | HUP9902284A2 (cs) |
| NO (1) | NO983479L (cs) |
| WO (1) | WO1998023550A1 (cs) |
| ZA (1) | ZA9710609B (cs) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7442248B2 (en) * | 2003-11-18 | 2008-10-28 | Research Incubator, Ltd. | Cementitious composition |
| US7156174B2 (en) * | 2004-01-30 | 2007-01-02 | Halliburton Energy Services, Inc. | Contained micro-particles for use in well bore operations |
| US7341105B2 (en) * | 2006-06-20 | 2008-03-11 | Holcim (Us) Inc. | Cementitious compositions for oil well cementing applications |
| US7799128B2 (en) * | 2008-10-10 | 2010-09-21 | Roman Cement, Llc | High early strength pozzolan cement blends |
| FR2943662B1 (fr) | 2009-03-24 | 2015-01-16 | Lafarge Sa | Beton a faible teneur en clinker |
| US9169159B2 (en) | 2013-03-15 | 2015-10-27 | Jerry Setliff | Cementitious composition |
| CN112940188B (zh) * | 2021-02-25 | 2022-04-29 | 深圳市台钜电工有限公司 | 用于数据线的抗弯折橡胶材料及其制备方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU654567A1 (ru) * | 1977-12-13 | 1979-03-30 | Государственный Всесоюзный Научно-Исследовательский Институт Цемента | Добавка в сырьевой цементный шлам |
| GR68405B (cs) * | 1979-05-31 | 1981-12-29 | Flowcon Oy | |
| DE3105054A1 (de) * | 1980-02-14 | 1982-02-04 | FLH-Versicherungsagentur GmbH, 7000 Stuttgart | Mischung und verfahren zu ihrer herstellung |
| DE3412357A1 (de) * | 1984-04-03 | 1985-10-10 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Hydraulisch haertbare, anorganische bindemittelzusammensetzung |
| DE3437680C2 (de) * | 1984-10-15 | 1996-04-11 | Tubag Trass Zement Stein | Bindemittel für Restaurierungsmörtel und dessen Verwendung |
| CA2110658A1 (en) * | 1992-12-16 | 1994-06-17 | Theodor A. Burge | Thixotroping and set-accelerating additive for mixtures containing a hydraulic binder, process using the additive, apparatus for preparing the mixtures containing a hydraulic binder as well as the additive |
| US5346012A (en) * | 1993-02-01 | 1994-09-13 | Halliburton Company | Fine particle size cement compositions and methods |
| JPH07124535A (ja) * | 1993-11-02 | 1995-05-16 | Yonemi Sano | 燃焼灰の硬化凝結剤、及び建築材の製造方法 |
| FR2714316B1 (fr) * | 1993-12-29 | 1996-03-15 | 3F | Procédé de traitement des cendres de déchets toxiques par incorporation dans un béton avec lequel on forme des blocs que l'on stocke. |
-
1997
- 1997-11-21 CZ CZ982685A patent/CZ268598A3/cs unknown
- 1997-11-21 JP JP52404798A patent/JP2000504301A/ja not_active Ceased
- 1997-11-21 EP EP97945655A patent/EP0879216A1/de not_active Withdrawn
- 1997-11-21 WO PCT/AT1997/000256 patent/WO1998023550A1/de not_active Application Discontinuation
- 1997-11-21 US US09/117,582 patent/US6036768A/en not_active Expired - Fee Related
- 1997-11-21 HU HU9902284A patent/HUP9902284A2/hu unknown
- 1997-11-21 CA CA 2244259 patent/CA2244259A1/en not_active Abandoned
- 1997-11-25 ZA ZA9710609A patent/ZA9710609B/xx unknown
-
1998
- 1998-07-28 NO NO983479A patent/NO983479L/no not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9823550A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2244259A1 (en) | 1998-06-04 |
| WO1998023550A1 (de) | 1998-06-04 |
| US6036768A (en) | 2000-03-14 |
| ZA9710609B (en) | 1998-06-23 |
| JP2000504301A (ja) | 2000-04-11 |
| NO983479D0 (no) | 1998-07-28 |
| HUP9902284A2 (hu) | 2001-06-28 |
| NO983479L (no) | 1998-09-25 |
| CZ268598A3 (cs) | 1999-02-17 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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| AX | Request for extension of the european patent |
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| 17Q | First examination report despatched |
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| GRAG | Despatch of communication of intention to grant |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
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