Rapid fabrication of highly dense geopolymers using a warm press method and their ability to absorb neutron irradiation

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• 作者：Hayami Takeda ; Shinobu Hashimoto ; Hiromu Matsui ; Sawao Honda ; Yuji Iwamoto
• 关键词：Rapid fabrication ; Geopolymer ; Warm press ; Neutron irradiation
• 刊名：Construction and Building Materials
• 出版年：15 January, 2014
• 年：2014
• 卷：50
• 期：Complete
• 页码：82-86
• 全文大小：972 K

文摘

A highly dense pure phase geopolymer was fabricated in only a few hours using a warm press technique. The resultant geopolymer had a high compressive strength of 149 MPa after pressing at 200 MPa and 130 掳C for 1 h. The heat and pressure applied during the processing accelerated the geopolymerization and solidification of the starting materials, which consisted of fly ash, a sodium hydroxide solution, and water glass. This highly dense geopolymer had an excellent ability to absorb neutron irradiation, compared to geopolymers fabricated by a conventional curing process.