DER0010754MA - - Google Patents
Info
- Publication number
- DER0010754MA DER0010754MA DER0010754MA DE R0010754M A DER0010754M A DE R0010754MA DE R0010754M A DER0010754M A DE R0010754MA
- Authority
- DE
- Germany
- Prior art keywords
- lime
- mixture
- pozzolan
- blast furnace
- added
- 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.)
- Active
Links
- 239000002893 slag Substances 0.000 claims description 10
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 8
- 239000000920 calcium hydroxide Substances 0.000 claims description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 7
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 1
- 235000011941 Tilia x europaea Nutrition 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000004571 lime Substances 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 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
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY
Tag der Anmeldung: 20. Januar 1953 Bekanntgemacht am 15. November 1956Filing date: January 20, 1953 Advertised on November 15, 1956
DEUTSCHES PATENTAMTGERMAN PATENT OFFICE
Die Erfindung bezieht sich auf die Herstellung von Gipsschlackeinzementen von gesteigerter Lagerbeständigkeit. The invention relates to the production of gypsum slag cement of increased shelf life.
Die seither bekannten Gipsschlackenzemente haben den Nachteil, daß ihre Festigkeitswerte stark schwanken. Besonders mangelhaft ist, daß sie nicht in ausreichendem Maße, namentlich nicht lang genug, lagerfähig sind.The gypsum slag cements known since then have the disadvantage that their strength values vary greatly. What is particularly flawed is that they are not are sufficiently storable, in particular not long enough.
Es. ist schon vorgeschlagen worden, zur Verbesserung der Lagerfähigkeit Kalkhydrat oder Portlandzement bis zu 3% zuzusetzen. Dieser Vorschlag führte aber nicht zu einem befriedigenden Ergebnis. Eine für die Praxis genügende Steigerung der Lagerbeständigkeit war dadurch nicht erreichbar. Es wurde; nun gefunden, daß einie wesentliche und für die Praxis ausreichende Steigerung der Lagerbeständigkeit von Gipsschlackenzementen erreicht wird, wenn der Hochofenschlacke und/odeir ihren Abbinideerregern vor, während oder nach, der Vermahlung ein Gemisch von o,2 bis 3%, vorzugsweise o,S °/o Kalkhydrat oder Kalkhydrat abspaltenden Stoffen mit 0,3 bis 3%, vorzugsweise 0,7 % Puz-It. It has already been proposed to improve the shelf life of hydrated lime or portland cement add up to 3%. However, this proposal did not lead to a satisfactory result. A sufficient increase in storage stability for practical use could not be achieved as a result. It was; now found that some essential and A sufficient increase in the storage stability of gypsum slag cements achieved in practice if the blast furnace slag and / or its binding pathogens before, during or after the grinding a mixture of 0.2 to 3%, preferably 0.5%, splitting off hydrated lime or hydrated lime Fabrics with 0.3 to 3%, preferably 0.7% plaster
609 707/315609 707/315
R 10754 IVc/80bR 10754 IVc / 80b
zolan oder pUzzolanartigen Stoffen, ζ. B. feinem Tuffsand oder feingemahlenem Tuffstein, beigeimischt wird.zolan or pUzzolan-like substances, ζ. B. fine Tuff sand or finely ground tuff stone is mixed in.
' Diese Gemischstoffe bilden, einei kolloide KaIk-Kieselsäure-Verbindung. Diese ist in der Lage, die angreifenden Wasser-, Kohlensäure- und sonstigen angriffswirksamen Bestandteile der Luft chemisch bzw. physikalisch zu binden, mithin von der E.in-These mixtures form a colloidal clay-silica compound. This is able to chemically remove the attacking water, carbonic acid and other aggressive components of the air or to bind physically, therefore by the E.
- wirkung auf den Scblackenzement selbst abzuhalten.- to keep the effect on the slag cement itself.
ίο Als. Kalkhydrat abspaltende Stoffe sind Löschkalk oder Calciumsilikat enthaltende Stoffe, z. B. Romanzement oder calciumaluminathaltige Stoffe, z. B. Tonerdeschmelzzement, brauchbar.ίο As. Substances that split off hydrated lime are slaked lime or substances containing calcium silicate, e.g. B. Roman cement or substances containing calcium aluminate, z. B. Alumina cement, useful.
Natürlich sind erfindungsgemäß nicht nur die genannten, sondern auch andere gleichwirkende Stoffe verwendbar.Of course, according to the invention, not only those mentioned, but also others have the same effect Fabrics can be used.
Die erläuterte Schutzwifkung kann gefördert werden, indem ein weiteres Reagenz beigefügt wird, das die erläuterte Abhalte- bzw. Schutzwirkung steigert. Es kann z. B. die obenerwähnte Kalk-Kieselsäure-Verbindung zu weiterer Reaktion durch Aluminiumhydroxyd (Al(OH)3) angeregt werden. Es entsteht dann eine komplexe Kalk-Kieselsäure-Tonerde-Verbindung. , ,The explained protective effect can be promoted by adding a further reagent which increases the explained deterrent or protective effect. It can e.g. B. the above-mentioned lime-silica compound can be stimulated to further reaction by aluminum hydroxide (Al (OH) 3 ). A complex lime-silica-alumina compound is then created. ,,
Überraschenderweise zeigte sich nämlich eine ganz beachtliche Steigerung der Wirkung des vorstehend bezeichneten Gemisches nach Zugabe von 0,1 bis .20Ie, vorzugsweise 0,3°/» Aluminiumhydroxyd. Surprisingly, there was namely a very considerable increase in the effect of the mixture described above after the addition of 0.1 to .2 0 Ie, preferably 0.3% aluminum hydroxide.
Erfindungsgemäß werden Reaktionen ausgelöst, , welche außer der gewünschten Steigerung der Lagerbeständigkeit von •■Gipsschlackenzement: auch; eine erhebliche Erhöhung der Biegezug- und Druckfestigkeit zur Folge haben.According to the invention, reactions are triggered which, in addition to the desired increase in Shelf life of • ■ gypsum slag cement: also; a significant increase in flexural strength and compressive strength have as a consequence.
Claims (4)
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69014778T2 (en) | Improved mix and Portland cement compositions. | |
| EP0635463A1 (en) | Additive preventing the corrosion of metals in building materials, method of making building materials using said corrosion inhibitor, and building material containing the corrosion inhibitor | |
| AT511689A1 (en) | HYDRAULIC BINDER | |
| DE2165434B2 (en) | HYDRAULIC CEMENT COMPOSITION | |
| DE2619790A1 (en) | PROCESS FOR THE MANUFACTURING OF EXPANDABLE CEMENT CONGLOMERATES OF HIGH RESISTANCE | |
| CZ195196A3 (en) | Preparations for water treatment and maintenance of soils | |
| AT395145B (en) | WATER RESISTANT AND ABRASION RESISTANT SOREL CEMENT COMPOSITION FOR FLOORS AND METHOD FOR PRODUCING SUCH A FLOOR | |
| EP0103119A1 (en) | Binder mixture from sulphatic, lime-yielding pozzolanic materials rich in aluminate | |
| EP3145891A1 (en) | Accelerator for hydraulic binding agents with long processing time and very high early strength | |
| US1968152A (en) | Process for accelerating the hardening of hydraulic binding means | |
| DER0010754MA (en) | ||
| DE69701821T2 (en) | Admixture for cement | |
| DE3031086C2 (en) | Process for the production of magnesia mortar or screed | |
| EP0231415B1 (en) | Sealing, consolidating and/or binding agent based on modified alcaline silicate solutions | |
| CH631144A5 (en) | LIME-SILICONE MIXTURE AND METHOD FOR THE PRODUCTION OF STEAM-HARDENED BUILDING MATERIALS. | |
| DE69227771T2 (en) | High performance mortar or concrete | |
| DE833474C (en) | Production of a hydraulic binder | |
| DE607656C (en) | Process for reducing the vapor tension on set mortar and concrete masses | |
| EP2632871A1 (en) | Hydraulic activator for slag sand | |
| DE409466C (en) | Mortar builder | |
| AT320513B (en) | Cement or cement concrete and process for their manufacture | |
| DE656137C (en) | Process for waterproofing building materials | |
| DE762900C (en) | Cementitious binder and process for its manufacture | |
| DE583476C (en) | Process for the preparation of cyanamides of alkaline earths and magnesium | |
| AT373571B (en) | METHOD FOR SHORTING THE SETTING TIME OF CEMENT PASTE, MORTAR OR CONCRETE |