Intrinsic microstructure of C-A-S-H and N(-C)-A-S-H gels at low Ca/Si and Si/Al ratios

Yulin Deng; Zuhua Zhang

doi:10.1039/d5ta09930g

January 1, 2026Journal of Materials Chemistry AOpen Access

Intrinsic microstructure of C-A-S-H and N(-C)-A-S-H gels at low Ca/Si and Si/Al ratios

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Key Points

The study investigates the microstructure of low calcium aluminosilicate hydrate and sodium aluminosilicate hydrate gels.
Analyzed intrinsic microstructure under varying calcium-to-silicon and silicon-to-aluminum ratios.
Utilized techniques to assess the properties of the gels.
Conducted comparative assessments between C-A-S-H and N(-C)-A-S-H.
Identified key differences in the microstructure of C-A-S-H and N(-C)-A-S-H gels.
Demonstrated that lower Ca/Si and Si/Al ratios impact the structural performance.
Provided insights that can predict and enhance geopolymer manufacturing.

Implication

Analysis reveals microstructure of low calcium aluminosilicate gels, suggesting implications for geopolymer manufacturing.

Abstract

Understanding the microstructure of low calcium aluminosilicate hydrate (C-A-S-H) and calcium containing sodium aluminosilicate hydrate (N(-C)-A-S-H) is essential for the performance prediction and therefore manufacturing of geopolymers, or more broadly,...

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Cite This Study

Deng et al. (2026) studied this question.

synapsesocial.com/papers/69c37bb3b34aaaeb1a67e4e6 https://doi.org/10.1039/d5ta09930g

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Intrinsic microstructure of C-A-S-H and N(-C)-A-S-H gels at low Ca/Si and Si/Al ratios

Key Points

Implication

Abstract

Discussion

Cite This Study

Intrinsic microstructure of C-A-S-H and N(-C)-A-S-H gels at low Ca/Si and Si/Al ratios

Key Points

Implication

Abstract

Discussion

Cite This Study

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