The influence of alkali activator type, curing temperature and gibbsite on the geopolymerization of an interstratified illite-smectite rich clay from Friedland

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• 作者：Nanjie Hu^a ; ^{nanjie.hu.co@gmail.com} ; Denis Bernsmeier^b ; Georg H. Grathoff^a ; Laurence N. Warr^a
• 关键词：Alkaline activation ; Illite-smectite ; Geopolymers ; NaOH ; KOH ; Gibbsite
• 刊名：Applied Clay Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：135
• 期：Complete
• 页码：386-393
• 全文大小：1584 K
• 卷排序：135

文摘

Geopolymers are formed by alkaline activation of an interstratified illite-smectite clay. KOH-activation at 50 °C forms geopolymers with compressive strength of 38 to 45 N/mm2. Gibbsite addition enhances KOH-activation by increased aluminosilicate gel formation. NaOH-activation at 75 °C forms geopolymers with lower strength of ~ 30 N/mm2. NaOH-activation is characterized by phillipsite (zeolite) crystallization.