Mechanical and chloride ions solidification performance of C4A3($,P) mineral as promising marine engineering material

Yan, Jinghua; Wu, Fengnian; Li, Shusen; Yuan, Jungang; Huang, Yongbo; Wang, Shoude; Zhao, Peng; Lu, Lingchao; Cheng, Xin

doi:10.1016/j.conbuildmat.2022.126553

Cited by 3 publications

(1 citation statement)

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“…Meanwhile, CSA cement has a low firing temperature (approximately 100–200 °C lower) and better grindability of clinker, which greatly reduces energy consumption . In addition, CSA cement is becoming increasingly popular in rapid repair and marine engineering due to its early strength, rapid setting, corrosion resistance, and low shrinkage properties. − At the same time, ferric-rich calcium sulfoaluminate (FR-CSA) cement with high Fe content is more favorable in terms of performance, low carbon, and cost contribution. , Therefore, the prominent potential of CSA cement has led to its being widely researched and applied as a potential PC alternative. For convenience, the abbreviated symbols for cement chemistry have been clarified, namely, C = CaO, A = Al 2 O 3 , $ = SO 3 , F = Fe 2 O 3 , and H = H 2 O.…”

Section: Introductionmentioning

confidence: 99%

Temperature Effects on Fe(OH)₃ Gel Phase Nanostructures: Implications for the Performance Regulation and Application of Calcium Sulfoaluminate Cement

Li,

Chang,

Zeng

2023

ACS Appl. Nano Mater.

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Temperature is one of the most important factors affecting the hydration process and the crystallinity of cement pastes, and its effect on the gel phase cannot be ignored. The Fe(OH) 3 phase is an indispensable gel phase in calcium sulfoaluminate cement, which significantly contributes to the desirable properties of CSA cement (especially ferric-rich calcium sulfoaluminate (FR-CSA) cement). In order to thoroughly study the influence of temperature on the nanostructure of the Fe(OH) 3 gel phase, XRD, TGA, FTIR, SEM, TEM and Mossbauer spectroscopy were used to investigate the nanostructure of the Fe(OH) 3 phase synthesized by the sol−gel method and Fe(OH) 3 phase in ferric phase hydration products prepared by solid-phase sintering at different temperatures. The results show that the chemically synthesized Fe(OH) 3 phase has a crystal structure, goethite/hematite is the main product of the Fe(OH) 3 phase, and temperature has a significant effect on the crystallinity and microstructure of Fe(OH) 3 . The increase of temperature leads to the gradual increase of the crystallinity of the Fe(OH) 3 phase, changes the crystallization path of the Fe(OH) 3 phase, and is conducive to the formation of a hematite crystal. At the same time, the microstructure changes from a needle-like structure of goethite to a flaky structure of hematite. In addition, Fe(OH) 3 has a significant crystal structure during hydration at different temperatures. As the temperature increases, the crystallinity of Fe(OH) 3 generated by hydration increases and the particle size gradually increases. The microscopic morphology of the Fe(OH) 3 phase formed by hydration is predominantly scaly with significantly smaller particle sizes and weaker crystallization compared to the chemically synthesized Fe(OH) 3 phase.

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Section: Introductionmentioning

confidence: 99%

Temperature Effects on Fe(OH)₃ Gel Phase Nanostructures: Implications for the Performance Regulation and Application of Calcium Sulfoaluminate Cement

Li,

Chang,

Zeng

2023

ACS Appl. Nano Mater.

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Synthesis and hydration characteristics of Ga-containing ye'elimite

Ndzila,

Liu,

Wang

et al. 2024

CEMENT

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Synthesis of High Belite Sulfoaluminate Cement Containing Magnesia-Alumina Spinel With Solid Waste

Yu¹

2023

Ceramics - Silikaty

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Mechanical and chloride ions solidification performance of C4A3($,P) mineral as promising marine engineering material

Cited by 3 publications

References 38 publications

Temperature Effects on Fe(OH)₃ Gel Phase Nanostructures: Implications for the Performance Regulation and Application of Calcium Sulfoaluminate Cement

Temperature Effects on Fe(OH)₃ Gel Phase Nanostructures: Implications for the Performance Regulation and Application of Calcium Sulfoaluminate Cement

Synthesis and hydration characteristics of Ga-containing ye'elimite

Synthesis of High Belite Sulfoaluminate Cement Containing Magnesia-Alumina Spinel With Solid Waste

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Mechanical and chloride ions solidification performance of C4A3($,P) mineral as promising marine engineering material

Cited by 3 publications

References 38 publications

Temperature Effects on Fe(OH)3 Gel Phase Nanostructures: Implications for the Performance Regulation and Application of Calcium Sulfoaluminate Cement

Temperature Effects on Fe(OH)3 Gel Phase Nanostructures: Implications for the Performance Regulation and Application of Calcium Sulfoaluminate Cement

Synthesis and hydration characteristics of Ga-containing ye'elimite

Synthesis of High Belite Sulfoaluminate Cement Containing Magnesia-Alumina Spinel With Solid Waste

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Product

Resources

About

Temperature Effects on Fe(OH)₃ Gel Phase Nanostructures: Implications for the Performance Regulation and Application of Calcium Sulfoaluminate Cement

Temperature Effects on Fe(OH)₃ Gel Phase Nanostructures: Implications for the Performance Regulation and Application of Calcium Sulfoaluminate Cement