2020 Annual Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-1  Radioactive Waste Management

[2B04-07] Geopolymer 1

Tue. Mar 17, 2020 10:50 AM - 11:55 AM Room B (Lecture Bildg. L 1F L-3)

Chair:Yogarajah Elakneswaran(Hokkaido Univ.)

11:35 AM - 11:50 AM

[2B07] Effect of dehydration on Mechanical Properties of Metakaolin-based Geopolymer

*Yaru Yang1, isamu kodou2, Mai Dung Do1, Duyen Chau Le Thi1, Hisayuki Suematsu1 (1. Extreme Energy-Density Research Institute, Nagaoka University of Technology , 2. Advan Engineering Co.Ltd. Manufacturing Department DEvelopment Group Policy)

Keywords:geopolymer, metakaolin, dehydration, temperature

As catalyst supports into the nuclear waste containers in Fukushima Daiichi Nuclear Power Station, geopolymer is required to show high strength, low porosity, and durability. When geopolymer has a high water content, which leads a larger pore size, volume and a lower mechanical strength. It is necessary for geopolymer dehydration. In this study geopolymer samples were made of EFACO silica, potassium hydroxide, potassium silicate solution, and two types of metakaolin powders. Mechanical properties after dehydrations at different curing temperatures were analyzed. High temperature can make my samples dehydrate faster, but there are a lot of cracks on the my samples. Room temperature is the best condition for my sample.