Geopolymers Made Using New Zealand Flyash
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概要
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Geopolymers synthesised using New Zealand fly ash have been investigated for their potential application as matrices for encapsulation and immobilisation of hazardous and radioactive waste. Knowledge of the long-term behaviour and macroscopic and microscopic properties of these materials will be essential. Pastes aged for between 1 day and 2 years after were investigated in this study. The material exhibited a complex microstructure, consisting of both crystalline and amorphous regions. While no changes in crystalline phases were detected in fresh and aged samples, significant differences in porosity and surface area were noted on ageing of the samples. Very high early strengths of 85 MPa were achieved but were observed to decline in samples after 7 days ageing. It is believed that on-going reactions within the geopolymer matrix are contributing to these changes after the material has set and hardened.
- 公益社団法人 日本セラミックス協会の論文
公益社団法人 日本セラミックス協会 | 論文
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