Effect of blast furnace slag grades on fly ash based geopolymer waste forms
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- 作者：Hui Xu ; Weiliang Gong ; gongw@vsl.cua.edu" class="auth_mail ; Larry Syltebo ; Kevin Izzo ; Werner Lutze ; Ian L. Pegg
- 关键词：GGBFS ; ground granulated blast furnace slag ; HSW ; Hanford secondary waste ; AIPs ; aluminosilicate inorganic polymers ; C&ndash ; A&ndash ; S&ndash ; H ; aluminium-modified calcium silicate hydrate ; N&ndash ; A&ndash ; S&ndash ; H ; sodium aluminosilicate hydrate ; OPC ; ordinary Portland cement ; ILAW ; immobilized low-activity waste ; HEPA ; high-efficiency particulate air ; PNNL ; Pacific Northwest National Laboratory ; ICC ; Isothermal Conduction Calorimeter ; ANSI/ANS ; American National Standards Institute/American Nu
- 刊名：Fuel
- 出版年：1 October 2014
- 年：2014
- 卷：133
- 期：Complete
- 页码：332-340
- 全文大小：2369 K
文摘
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Slags of grades 80, 100 and 120 investigated on fly ash based geopolymer waste forms.
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Concentrated Hanford radioactive waste similant consisting of more than 20 chemicals.
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Higher grade slag not definitely leading to higher strength or shorter setting times.
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More hydration heat for higher grade slag confirmed by calorimetric study.
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Reactivity of higher grade slag found to be better exploited at enhanced Si/Ca ratios.