ECSP972073A - HYDRAULIC CEMENT WITH HIGH STRENGTH ACCELERATED DEVELOPMENT - Google Patents
HYDRAULIC CEMENT WITH HIGH STRENGTH ACCELERATED DEVELOPMENTInfo
- Publication number
- ECSP972073A ECSP972073A ECSP972073A ECSP972073A EC SP972073 A ECSP972073 A EC SP972073A EC SP972073 A ECSP972073 A EC SP972073A EC SP972073 A ECSP972073 A EC SP972073A
- Authority
- EC
- Ecuador
- Prior art keywords
- clinker
- calcium
- grinding
- formation
- cement
- Prior art date
Links
- 239000011396 hydraulic cement Substances 0.000 title 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 4
- 239000004568 cement Substances 0.000 abstract 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 2
- 239000011575 calcium Substances 0.000 abstract 2
- 229910052791 calcium Inorganic materials 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052918 calcium silicate Inorganic materials 0.000 abstract 1
- 235000012241 calcium silicate Nutrition 0.000 abstract 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 abstract 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 abstract 1
- 235000019976 tricalcium silicate Nutrition 0.000 abstract 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
La invención consiste en un método para la fabricación de cementos a base de sulfoaluminato de calcio, el cual consiste en la formación de un clinker mediante la calcinación de las materias primas a temperaturas superiores a 1200oC de tal manera que el clinker producido tengs un slto contenido de sulfoaluminato de calcio, silicato tricálcico y silicato dicálcico y, durante o previa a la etapa de molienda, adicionar al clinker así producido y con los componentes básicos antes mencionados cantidades optimas de oxido o hidróxido de calcio y sulfato de calcio a fin de activar dicho clinker. En dicha molienda deberá observarse una temperatura de aproximadamente 100 a 125oC y un tiempo suficiente para convertir el yeso en hemidrato con lo que se logrará que el sulfato de calcio presente en el producto obtenido se encuentre en condiciones y reaccionar rápidamente durante la hidratación del cemento, dando lugar a la formación de la entringita, requiriéndose para ello la precensia de un pHsuperior a 12. Por supuesto, también reclama como novedad el cemento activado, resultante del método de calcinación y de molienda de la invención.The invention consists of a method for the manufacture of calcium sulfoaluminate-based cements, which consists of the formation of a clinker by calcining the raw materials at temperatures above 1200oC in such a way that the clinker produced has a contained content. of calcium sulfoaluminate, tricalcium silicate and dicalcium silicate and, during or prior to the grinding stage, add to the clinker thus produced and with the aforementioned basic components optimum amounts of calcium oxide or hydroxide and calcium sulfate in order to activate said clinker. In said grinding, a temperature of approximately 100 to 125oC must be observed and a time sufficient to convert the gypsum into hemidrate, thereby achieving that the calcium sulfate present in the product obtained is in good condition and reacts quickly during the hydration of the cement, giving rise to the formation of the entringite, requiring for it the precensia of a pH higher than 12. Of course, it also claims as a novelty the activated cement, resulting from the calcination and grinding method of the invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ECSP972073 ECSP972073A (en) | 1997-04-04 | 1997-04-04 | HYDRAULIC CEMENT WITH HIGH STRENGTH ACCELERATED DEVELOPMENT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ECSP972073 ECSP972073A (en) | 1997-04-04 | 1997-04-04 | HYDRAULIC CEMENT WITH HIGH STRENGTH ACCELERATED DEVELOPMENT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ECSP972073A true ECSP972073A (en) | 1998-04-07 |
Family
ID=42042906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ECSP972073 ECSP972073A (en) | 1997-04-04 | 1997-04-04 | HYDRAULIC CEMENT WITH HIGH STRENGTH ACCELERATED DEVELOPMENT |
Country Status (1)
| Country | Link |
|---|---|
| EC (1) | ECSP972073A (en) |
-
1997
- 1997-04-04 EC ECSP972073 patent/ECSP972073A/en unknown
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