Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alkali-free liquid accelerator and preparation method
The present invention discloses an alkali-free liquid accelerator and a preparation method thereof, and belongs to the field of chemical industry product production, wherein the solid content of the accelerator is 45-55%, and the components comprise 35-60% of aluminum sulfate, 10-20% of amorphous aluminum hydroxide, 9-17% of sulfuric acid, 3.5% of triethanolamine, 3-8% of amine diethanolamine, 0.8% of amide, and the balance of water. The alkali-free liquid accelerator has the following beneficial effects that: the alkali-free liquid accelerator can completely meet the (sprayed concrete accelerator) standard in the case of the low dosage, such that the cement can be subjected to initial setting within 3 min and can be subjected to final setting within 8 min, the 1 d strength of the mortar is greater than 8 MPa, the ratio to the blank mortartest block tL28d compressive strength is more than 95%, and the 28-day strength of some cement can be increased by more than or equal to 10%.
Alkali-free liquid accelerator and preparation method
The present invention discloses an alkali-free liquid accelerator and a preparation method thereof, and belongs to the field of chemical industry product production, wherein the solid content of the accelerator is 45-55%, and the components comprise 35-60% of aluminum sulfate, 10-20% of amorphous aluminum hydroxide, 9-17% of sulfuric acid, 3.5% of triethanolamine, 3-8% of amine diethanolamine, 0.8% of amide, and the balance of water. The alkali-free liquid accelerator has the following beneficial effects that: the alkali-free liquid accelerator can completely meet the (sprayed concrete accelerator) standard in the case of the low dosage, such that the cement can be subjected to initial setting within 3 min and can be subjected to final setting within 8 min, the 1 d strength of the mortar is greater than 8 MPa, the ratio to the blank mortartest block tL28d compressive strength is more than 95%, and the 28-day strength of some cement can be increased by more than or equal to 10%.
Alkali-free liquid accelerator and preparation method
CHEN WENNING (Autor:in)
24.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Alkali-free liquid accelerator for concrete and preparation method of alkali-free liquid accelerator
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023