Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The present invention belongs to the technical field of water reducing agents, and particularly relates to a concrete retarding water reducing agent, which comprises a water reducing agent, a retarder and a reducing agent, wherein a weight ratio of the water reducing agent o the retarder is 9:1-7:3, the reducing agent accounts for 0.01-0.04% of the total weight of the water reducing agent and the retarder, the water reducing agent is a naphthalene sulfonic acid formaldehyde condensation water reducing agent, the reducing agent is SRA-3, and the retarder is one or a plurality of materials selected from ferrous sulfate, sodium fluorosilicate, ferrous carbonate, cellulose ether and cadmium sulfate. According to the present invention, with the efficient retarding water reducing agent, the cement particles can be dispersed, the workability of concrete can be improved, the water consumption per unit can be reduced, the strength of concrete can be increased, the durability of concrete can be improved, the cement consumption per unit can be reduced, and the concrete cost can be reduced; and the product has effects of concrete setting time delaying, early strength, water reducing and the like.
The present invention belongs to the technical field of water reducing agents, and particularly relates to a concrete retarding water reducing agent, which comprises a water reducing agent, a retarder and a reducing agent, wherein a weight ratio of the water reducing agent o the retarder is 9:1-7:3, the reducing agent accounts for 0.01-0.04% of the total weight of the water reducing agent and the retarder, the water reducing agent is a naphthalene sulfonic acid formaldehyde condensation water reducing agent, the reducing agent is SRA-3, and the retarder is one or a plurality of materials selected from ferrous sulfate, sodium fluorosilicate, ferrous carbonate, cellulose ether and cadmium sulfate. According to the present invention, with the efficient retarding water reducing agent, the cement particles can be dispersed, the workability of concrete can be improved, the water consumption per unit can be reduced, the strength of concrete can be increased, the durability of concrete can be improved, the cement consumption per unit can be reduced, and the concrete cost can be reduced; and the product has effects of concrete setting time delaying, early strength, water reducing and the like.
Retarding water reducing agent
WANG QIWANG (Autor:in)
24.02.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2020