Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation of alkali-free liquid accelerator based on aluminum sulfate and its accelerating mechanism on the hydration of cement pastes
https://orcid.org/0000-0002-3810-0846
Highlights: F-AS-AF accelerator was prepared at simple and mild condition. F-AS-AF accelerator showed an excellent performance. F-AS-AF accelerator promoted the formation of ettringite and the hydration of C3S.
Abstract The alkali-free liquid accelerator based on aluminum sulfate (F-AS-AF accelerator) was prepared and its effects on the setting time and compressive strength of cement, C3A and C3S were studied. The accelerator mechanism was investigated via XRD and TG. Results showed that the F-AS-AF accelerator shortened the setting time, and enhanced the early and later compressive strength of cement. With the addition of F-AS-AF accelerator, Al3+ reacted with Ca2+ and SO4 2− in the C3A to rapidly form ettringite, and the consumption of Ca2+ further promoted the dissolving and hydration of C3S.
Preparation of alkali-free liquid accelerator based on aluminum sulfate and its accelerating mechanism on the hydration of cement pastes
https://orcid.org/0000-0002-3810-0846
Highlights: F-AS-AF accelerator was prepared at simple and mild condition. F-AS-AF accelerator showed an excellent performance. F-AS-AF accelerator promoted the formation of ettringite and the hydration of C3S.
Abstract The alkali-free liquid accelerator based on aluminum sulfate (F-AS-AF accelerator) was prepared and its effects on the setting time and compressive strength of cement, C3A and C3S were studied. The accelerator mechanism was investigated via XRD and TG. Results showed that the F-AS-AF accelerator shortened the setting time, and enhanced the early and later compressive strength of cement. With the addition of F-AS-AF accelerator, Al3+ reacted with Ca2+ and SO4 2− in the C3A to rapidly form ettringite, and the consumption of Ca2+ further promoted the dissolving and hydration of C3S.
Preparation of alkali-free liquid accelerator based on aluminum sulfate and its accelerating mechanism on the hydration of cement pastes
https://orcid.org/0000-0002-3810-0846
Highlights: F-AS-AF accelerator was prepared at simple and mild condition. F-AS-AF accelerator showed an excellent performance. F-AS-AF accelerator promoted the formation of ettringite and the hydration of C3S.
Abstract The alkali-free liquid accelerator based on aluminum sulfate (F-AS-AF accelerator) was prepared and its effects on the setting time and compressive strength of cement, C3A and C3S were studied. The accelerator mechanism was investigated via XRD and TG. Results showed that the F-AS-AF accelerator shortened the setting time, and enhanced the early and later compressive strength of cement. With the addition of F-AS-AF accelerator, Al3+ reacted with Ca2+ and SO4 2− in the C3A to rapidly form ettringite, and the consumption of Ca2+ further promoted the dissolving and hydration of C3S.
Preparation of alkali-free liquid accelerator based on aluminum sulfate and its accelerating mechanism on the hydration of cement pastes
Niu, Mengdie (Autor:in) / Li, Guoxin (Autor:in) / Zhang, Jiangbo (Autor:in) / Cao, Li (Autor:in)
16.04.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Novel alkali-free liquid accelerator based on synthesis of polymeric aluminum sulfate
| Europäisches Patentamt | 2016