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Effect of GGBFS slag on CSA-based ternary binder hydration, and concrete performance
Highlights XRD patterns of binders were used to study and model the hydration process of Calcium sulfo-aluminate (CSA) based composites. Hydration of CSA-based composites is controlled by the quantity of ye’elimite, and C3A. A chemical parameter (Mm Value) based on binder composition is proposed to predict the properties of CSA-based composites. Compressive strength and setting time are influenced by the Mm Value of the composite binder.
Abstract Calcium sulfo-aluminate (CSA) cement is an alternative cement that can be beneficial for precast, rapid, and low-temperature concrete construction. But low workability and impractically short setting time of CSA cement, prevent its application in the construction industry. The use of Portland cement (OPC) and ground granulated blast furnace slag (GGBFS) in CSA-based composite binder can provide improved workability, and setting time while maintaining early strength and low carbon footprint. This article studies the hydration process in a composite binder with CSA, GGBFS and OPC to identify the controlling reaction and chemical parameters that can be used to predict the concrete performance during the fresh and hardened state. As SCMs and alternative binders are being used more in construction, the hydration process and compatibility assessment of binders need to have a scientific basis instead of a trial-and-error process.
Effect of GGBFS slag on CSA-based ternary binder hydration, and concrete performance
Highlights XRD patterns of binders were used to study and model the hydration process of Calcium sulfo-aluminate (CSA) based composites. Hydration of CSA-based composites is controlled by the quantity of ye’elimite, and C3A. A chemical parameter (Mm Value) based on binder composition is proposed to predict the properties of CSA-based composites. Compressive strength and setting time are influenced by the Mm Value of the composite binder.
Abstract Calcium sulfo-aluminate (CSA) cement is an alternative cement that can be beneficial for precast, rapid, and low-temperature concrete construction. But low workability and impractically short setting time of CSA cement, prevent its application in the construction industry. The use of Portland cement (OPC) and ground granulated blast furnace slag (GGBFS) in CSA-based composite binder can provide improved workability, and setting time while maintaining early strength and low carbon footprint. This article studies the hydration process in a composite binder with CSA, GGBFS and OPC to identify the controlling reaction and chemical parameters that can be used to predict the concrete performance during the fresh and hardened state. As SCMs and alternative binders are being used more in construction, the hydration process and compatibility assessment of binders need to have a scientific basis instead of a trial-and-error process.
Effect of GGBFS slag on CSA-based ternary binder hydration, and concrete performance
Ghosh, Debalina (author) / Ma, Zhongguo John (author) / Hun, Diana (author)
2023-04-25
Article (Journal)
Electronic Resource
English
Physical and chemical properties of concrete using GGBFS-KR slag-gypsum binder
British Library Online Contents | 2016
|Physical and chemical properties of concrete using GGBFS-KR slag-gypsum binder
British Library Online Contents | 2016
|Physical and chemical properties of concrete using GGBFS-KR slag-gypsum binder
Online Contents | 2016
|Physical and chemical properties of concrete using GGBFS-KR slag-gypsum binder
British Library Online Contents | 2016
|