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Development of Autoclaved Aerated Concrete from Mechanically Activated Magnesium-Rich Nickel Slag
Nickel slag autoclaved aerated concrete (NS-AAC) was fabricated through a hydrothermal synthesis method by using a novel solid waste, mechanically activated magnesium-rich NS, as the main raw material. The influence of the calcium:silicon () ratio on the macroscopic and microscopic performance of NS-AAC was investigated. NS-AAC was analyzed by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). Results showed that a formulation with 0.65 of exhibited exceptional compressive and flexural strength, which were 3.5 and 2.1 MPa, respectively. The hydrothermal production of NS-AAC, transformed from C-S-H and Ettringite (AFt) to interfingered and overlapped tobermorite and anhydrite, resulted in exceptional mechanical properties. This work proposes a novel approach for the utilization of NS.
Development of Autoclaved Aerated Concrete from Mechanically Activated Magnesium-Rich Nickel Slag
Nickel slag autoclaved aerated concrete (NS-AAC) was fabricated through a hydrothermal synthesis method by using a novel solid waste, mechanically activated magnesium-rich NS, as the main raw material. The influence of the calcium:silicon () ratio on the macroscopic and microscopic performance of NS-AAC was investigated. NS-AAC was analyzed by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). Results showed that a formulation with 0.65 of exhibited exceptional compressive and flexural strength, which were 3.5 and 2.1 MPa, respectively. The hydrothermal production of NS-AAC, transformed from C-S-H and Ettringite (AFt) to interfingered and overlapped tobermorite and anhydrite, resulted in exceptional mechanical properties. This work proposes a novel approach for the utilization of NS.
Development of Autoclaved Aerated Concrete from Mechanically Activated Magnesium-Rich Nickel Slag
Wu, Qisheng (author) / Guang, Jianmiao (author) / Li, Shuiping (author) / Wang, Shunxiang (author) / Zou, Xiaotong (author) / Zhu, Huajun (author) / Zhang, Changsen (author)
2018-04-30
Article (Journal)
Electronic Resource
Unknown
Development of Autoclaved Aerated Concrete from Mechanically Activated Magnesium-Rich Nickel Slag
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