GB2188923A - High alumina cement composition - Google Patents
High alumina cement composition Download PDFInfo
- Publication number
- GB2188923A GB2188923A GB08608716A GB8608716A GB2188923A GB 2188923 A GB2188923 A GB 2188923A GB 08608716 A GB08608716 A GB 08608716A GB 8608716 A GB8608716 A GB 8608716A GB 2188923 A GB2188923 A GB 2188923A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- sio2
- cao
- paste according
- cement
- 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
- 239000004568 cement Substances 0.000 title claims abstract description 22
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000000203 mixture Substances 0.000 title claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 11
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 11
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 11
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 3
- 239000003054 catalyst Substances 0.000 claims abstract 4
- 239000005909 Kieselgur Substances 0.000 claims abstract 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 239000011398 Portland cement Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 230000036571 hydration Effects 0.000 claims description 2
- 238000006703 hydration reaction Methods 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims 1
- 229910003002 lithium salt Inorganic materials 0.000 claims 1
- 159000000002 lithium salts Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011440 grout Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- -1 colourants Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
- E21D20/023—Cartridges; Grouting charges
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
- F16B13/141—Fixing plugs in holes by the use of settable material
- F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
A base component for reaction with a catalyst component comprises a paste of high alumina cement, water and a source of CaO and SiO2 - eg. preferably granulated blast furnace slag or alternatively PFA, silica fume, a pozzolan or diatomaceous earth.
Description
SPECIFICATION
Cementitious composition
The invention relates to a cementitious composition.
It is known to formulate cementitious compositions based on Ordinary Portland Cement (OPC) or on high alumina cement (HAC) for various purposes in the building, construction, civil engineering and mining industries. The use of HAC has its limitations, in particular a tendency for the hydrated cement to undergo HAC conversion which may lead to problems caused by loss of strength.
It is an object of this invention to provide a cementitious composition which has the advantages of the use of HAC without the disadvantages. In particular, a controlled rate of set, without any substantial deterioration in the u Itimate strength or other adverse effect.
The invention is based on the realisation that the incorporation in the HAC cementitious composition of a filler which is substantially inert with respect to the other ingredients and which will preferably be activated by water, will secure these advantages.
According to one aspect of the invention there is provided a a self-setting cementitious comprising high alumina cement and lime characterisedbythe presence of CaO and SiO2 in sufficient quantities such that on hydration of the cement, the hydrate phases of a hydrated Portland cement are formed.
The CaO and SiO2 may be provided by separate sources or a single source may be used. Preferred single sources are pulverisedfly ash, silica fume and pozzolans such asTripoli (available in the USA) and diatomaceous earths. It is a much preferred feature of the invention that the additives are supplied in a form which is non reactive with water, and for this purpose we prefer to use ground granulated blast furnace slag. The ground granulated blastfurnace slag preferably has a minimum fineness of 275m2/kg, and a bulkdensityof 1200 kg m -3 and an approximate specific gravity of 2.9. Such slags are made from rapidly cooled blast furnace slag which is the ground to the degree offineness indicated.
The hydrated phases in a set OPC cement are (cement chemistry notation) typically
C4AH13
Ca(OH)2
C2ASH8 whereas in a set HAC cement the hydrated phases aretypically
CAH10
C2AHB
C3AH6
C2ASH8 (minor amount).
It is a surprising feature ofthe invention that by adding sources of CaO and SiO2 in sufficient quantities to an HAC cement the hydrated phases typical of an OPC are formed. The effect is illustrated in the oxide composition diagram of the accompanying drawing. The three main oxides which occur in cement systems are CaO (lime), A1203 (alumina) and SiO2 (silica). It will be seen thatthe oxide phases in the OPC and intheslag are relatively low in Al203, whereas that of the HAC is high. According to the invention by adding the ground granulated blastfurnace slag in sufficient quantity to the HAC, the set cement has an oxide composition more typical of OPC.
Blastfurnace slag is well known reactive filler often used in OPC compositions. So far as we are aware, no-one has previously proposed its use in a HAC composition, probably because its rate of reactivity conferred no benefit.
The blast furnace slag may be of any known type, and derived from any commercial source. The particle size may varywidely but the size should be related to that of the cement particles.
It is a surprising feature of the invention that the proportion of the blast furnace slag may be varied widely relative to the HAC without substantially affecting the rate of set.
The high alumina cement is known under a varietyofnames in different countries, for example "Cement Fondue" and "alumina cement" or "super alumina cement". The contentofalumina in thecementvaries from country to country, sometimes being as low as 30% and other times being over 77%. The invention is applicable to all such alumina cements.
The composition may be presented in dry form for on site mixing with water or it may be presented as a paste in which case the lime will be kept separate until the composition is to set.
The composition may include other ingredients, e.g. water reducing agents, expanding agents, surfactants, colourants, latex emulsions, anti-foaming agents and plasticisers. Accelerators may be present, e.g.
sodium carbonate, sodium sulphate, calcium chloride, sodium hydroxide, ferrous sulphate, sulphuric acid, acetic acid, calcium sulphate, etc. Athixotropic,thickening agent or air entraining agent may be present.
Polymeric additives such as cellulose ethers, polyacrylamides and polyethylene oxides, or montmorillonite type clays may be present.
A grout formed of a cementitious composition of the invention may be used for a wide variety of purposes in the building, construction and allied industries. The fast rate of set is an advantage, coupled with the maintenance of the set strength.
In an evaluation a cementitious composition was mixed with water to form a grout which had the following oxide composition
CaO 42.2 A1203 18.2 Fe2O3 5.9
SiO2 28.7 others 5.0
Samples of hardened grout were wet cured at 25"C fortwo months, six months and one year respectively.
The set groutwas subjected to X-ray diffraction analysis, and the following results were obtained (cement chemistry notation)
CSH C4AH,3 Ca(OH)2
C3A.3CS.H32
C2ASH8
These hydrated phases are more typical of those present in an OPC - blast furnace slag composition. The absence of hydrated phases typical of HAC grouts, is particularly noteworthy. These results indicatethatat the setting stage one can have the advantage of the HAC, and avoids the hydrated phases typical of set HAC.
Claims (11)
1. A base component for reaction with a catalyst component which comprises lime and water, in which the base component comprises a paste of high alumina cement and water and CaO and SiO2 in sufficient quantities such that on hydration ofthe cement the hydrate phases of a hydrated Portland cement are formed.
2. A paste according to Claim 1, in which a single source of the CaO and SiO2 is present.
3. A paste according to Claim 1 or 2, in which the CaO and SiO2 are provided by pulverised fly ash, silica fume, a pozzolan or diatomaceous earth.
4. A paste according to any preceding Claim, in which the CaO and SiO2 are supplied as a material which is non-reactive with water.
5. A paste according to any preceding Claim, in which the CaO and SiO2 are provided by granulated blast furnace slag.
6. A paste according to Claim 5, in which the granulated blastfurnace slag has a minimum fineness of 275m2/Kg, a bulk density of 1200 Kgm-3 and an approximate specific gravity of 2.9.
7. A paste according to any preceding Claim, in which theCaO and SiO2are present in a combined weight
ratio offrom about 1:1 to about8:1 relative to the high alumina cement.
8. A base component for reaction with a catalyst component, substantially as described herein.
9. Aself-setting cementitious composition, one component being a base component according to any
preceding Claim and the other component being a catalystcomponentand comprising lime and water.
10. A composition according to Claim 9, in which the catalyst component comprises lime, water and a
water soluble lithium salt.
11. A self-setting composition substantially as described herein.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8608716A GB2188923B (en) | 1986-04-10 | 1986-04-10 | Cementitious composition |
| IN272/DEL/87A IN168168B (en) | 1986-04-10 | 1987-03-31 | |
| EP19870302896 EP0241230B1 (en) | 1986-04-10 | 1987-04-02 | Capsules of high alumina cement compositions |
| DE8787302896T DE3771257D1 (en) | 1986-04-10 | 1987-04-02 | CAPSULE CONTAINING TONER MELT CEMENT COMPOSITION. |
| ES87302896T ES2023657B3 (en) | 1986-04-10 | 1987-04-02 | CAPSULES OF CEMENT COMPOSITIONS WITH HIGH ALUMINA CONTENT. |
| US07/034,526 US4802922A (en) | 1986-04-10 | 1987-04-03 | Capsules of high alumina cement compositions |
| AU71116/87A AU589260B2 (en) | 1986-04-10 | 1987-04-06 | Capsules of high alumina cement composition |
| NO871468A NO871468L (en) | 1986-04-10 | 1987-04-08 | CAPSEL CONTAINING REACTIVE COMPONENTS. |
| CA 534306 CA1279662C (en) | 1986-04-10 | 1987-04-09 | Capsules of high alumina cement compositions |
| BR8701703A BR8701703A (en) | 1986-04-10 | 1987-04-10 | FRANGIVEL CAPSULE AND CEMENT PASTE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8608716A GB2188923B (en) | 1986-04-10 | 1986-04-10 | Cementitious composition |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8608716D0 GB8608716D0 (en) | 1986-05-14 |
| GB2188923A true GB2188923A (en) | 1987-10-14 |
| GB2188923B GB2188923B (en) | 1991-06-19 |
Family
ID=10595967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8608716A Expired - Lifetime GB2188923B (en) | 1986-04-10 | 1986-04-10 | Cementitious composition |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2188923B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2211182A (en) * | 1987-10-15 | 1989-06-28 | Nat Res Dev | Cement compositions |
| GB2221674A (en) * | 1988-08-12 | 1990-02-14 | Nat Res Dev | Cement compositions |
| EP0384898A1 (en) * | 1989-02-24 | 1990-08-29 | Sandoz Ag | Cementitious material for masonry constructions |
| GB2223488B (en) * | 1988-09-20 | 1992-04-15 | Fosroc International Ltd | Cement compositions |
| WO2002031423A2 (en) * | 2000-10-12 | 2002-04-18 | Intocast Aktiengesellschaft Feuerfestprodukte Und Giesshilfsmittel | Refractory structure for transport devices which can be used in ceramic ovens |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB907292A (en) * | 1957-10-25 | 1962-10-03 | Dyckerhoff Zementwerke Ag | A process for the production of sulphate-resistant cement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1803582A (en) * | 1925-10-06 | 1931-05-05 | Zucco Pierre | Cement composition |
-
1986
- 1986-04-10 GB GB8608716A patent/GB2188923B/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB907292A (en) * | 1957-10-25 | 1962-10-03 | Dyckerhoff Zementwerke Ag | A process for the production of sulphate-resistant cement |
Non-Patent Citations (1)
| Title |
|---|
| F.M.LEA,}THE CHEMISTRY OF CEMENT AND CONCRETE} (THIRD EDITION, 1970, PUB. ARNOLD), PP. 479-481 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2211182A (en) * | 1987-10-15 | 1989-06-28 | Nat Res Dev | Cement compositions |
| US4961787A (en) * | 1987-10-15 | 1990-10-09 | National Reserach Development Corporation | Cement composition |
| GB2211182B (en) * | 1987-10-15 | 1991-09-04 | Nat Res Dev | Cement compositions |
| GB2221674A (en) * | 1988-08-12 | 1990-02-14 | Nat Res Dev | Cement compositions |
| US5073197A (en) * | 1988-08-12 | 1991-12-17 | National Research Development Corporation | Cement compositions |
| GB2221674B (en) * | 1988-08-12 | 1992-12-16 | Nat Res Dev | Cement compositions |
| GB2223488B (en) * | 1988-09-20 | 1992-04-15 | Fosroc International Ltd | Cement compositions |
| EP0384898A1 (en) * | 1989-02-24 | 1990-08-29 | Sandoz Ag | Cementitious material for masonry constructions |
| WO2002031423A2 (en) * | 2000-10-12 | 2002-04-18 | Intocast Aktiengesellschaft Feuerfestprodukte Und Giesshilfsmittel | Refractory structure for transport devices which can be used in ceramic ovens |
| WO2002031423A3 (en) * | 2000-10-12 | 2003-05-22 | Intocast Ag Feuerfestprodukte | Refractory structure for transport devices which can be used in ceramic ovens |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8608716D0 (en) | 1986-05-14 |
| GB2188923B (en) | 1991-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930410 |