Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A NOVEL CHROMIUM REDUCING AGENT USED IN A CEMENT
The present invention relates to a novel chromium reducing agent used in a cement. In particular, present invention provides a chromium reducing agent composition, a method for reducing the water-soluble hexavalent chromium in a cement with the chromium reducing agent composition and a cementitious composition comprising the chromium reducing agent composition. The chromium reducing agent composition comprises: a chelating agent, preferably in an amount of 30-60 wt%, preferably 35-55 wt%, preferably 40-50 wt%, based on the total weight of the chromium reducing agent composition; and optionally a stabilizer, preferably in an amount of 0.1-1 wt%, preferably 0.3-0.7 wt%, preferably 0.4-0.6 wt%, based on the total weight of the chromium reducing agent composition. The chromium reducing agent composition has a remarkable chromium reduction effect, excellent high-temperature resistance, durability and storage stability, and is low in price.
A NOVEL CHROMIUM REDUCING AGENT USED IN A CEMENT
The present invention relates to a novel chromium reducing agent used in a cement. In particular, present invention provides a chromium reducing agent composition, a method for reducing the water-soluble hexavalent chromium in a cement with the chromium reducing agent composition and a cementitious composition comprising the chromium reducing agent composition. The chromium reducing agent composition comprises: a chelating agent, preferably in an amount of 30-60 wt%, preferably 35-55 wt%, preferably 40-50 wt%, based on the total weight of the chromium reducing agent composition; and optionally a stabilizer, preferably in an amount of 0.1-1 wt%, preferably 0.3-0.7 wt%, preferably 0.4-0.6 wt%, based on the total weight of the chromium reducing agent composition. The chromium reducing agent composition has a remarkable chromium reduction effect, excellent high-temperature resistance, durability and storage stability, and is low in price.
A NOVEL CHROMIUM REDUCING AGENT USED IN A CEMENT
WANG SUJUAN ( Autor:in ) / YANG LINYUE ( Autor:in )
20.02.2025
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME