Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ACCELERATING ADMIXTURE FOR CEMENTITIOUS COMPOSITIONS
The present invention describes a hardening accelerating admixture for hydraulic binders, the accelerator being based on transition metal silicate hydrates having the general formula: aMexOy bMO cAl2O3 SiO2 dH2O 1) where—Me represents a transition metal whose molar coefficient a is in a range between 0.001 and 2, preferably between 0.01 and 1; —M represents an alkaline earth metal whose molar coefficient b is in a range between 0 and 2, preferably between 0.3 and 1.6; —The molar coefficient c for Al2O3 is in a range between 0 and 2, preferably between 0.1 and 1; —H2O represents the hydration water of the silicate hydrate whose molar coefficient d can vary within a wide range between 0.5 and 20; x and y can both be equal to 1 or different, depending on the valence of the transition metal, given that the valence of the oxygen atom in the metal oxide is equal to 2.
ACCELERATING ADMIXTURE FOR CEMENTITIOUS COMPOSITIONS
The present invention describes a hardening accelerating admixture for hydraulic binders, the accelerator being based on transition metal silicate hydrates having the general formula: aMexOy bMO cAl2O3 SiO2 dH2O 1) where—Me represents a transition metal whose molar coefficient a is in a range between 0.001 and 2, preferably between 0.01 and 1; —M represents an alkaline earth metal whose molar coefficient b is in a range between 0 and 2, preferably between 0.3 and 1.6; —The molar coefficient c for Al2O3 is in a range between 0 and 2, preferably between 0.1 and 1; —H2O represents the hydration water of the silicate hydrate whose molar coefficient d can vary within a wide range between 0.5 and 20; x and y can both be equal to 1 or different, depending on the valence of the transition metal, given that the valence of the oxygen atom in the metal oxide is equal to 2.
ACCELERATING ADMIXTURE FOR CEMENTITIOUS COMPOSITIONS
BESCHLEUNIGUNGSZUSATZ FÜR ZEMENTÖSE ZUSAMMENSETZUNGEN
ADJUVANT ACCÉLÉRATEUR DE PRISE POUR COMPOSITIONS À BASE DE CIMENT
FERRARI GIORGIO (Autor:in) / RUSSO VINCENZO (Autor:in) / SQUINZI MARCO (Autor:in)
26.08.2020
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Superplasticizing admixture for cementitious compositions
| Europäisches Patentamt | 2017