scholarly journals Study on the Influence of Fly-Ash Quality on the Properties of Cementitious Materials and the Applicability of Nondestructive Tests for Quality Control at Radioactive Waste Disposal Facility in Japan

2012 ◽  
Vol 23 (1) ◽  
pp. 13-24
Author(s):  
Kazuhito Niwase ◽  
Naoyuki Sugihashi ◽  
Yoshinobu Edamatsu ◽  
Etsuo Sakai
Keyword(s):  
Quality Control ◽  
Fly Ash ◽  
Radioactive Waste ◽  
Waste Disposal ◽  
Cementitious Materials ◽  
Radioactive Waste Disposal ◽  
Nondestructive Tests ◽  
Disposal Facility

scholarly journals UPPER FILLER MATERIAL APPLIED IN CAVERN TYPE RADIOACTIVE WASTE DISPOSAL FACILITY

2016 ◽  
Vol 72 (3) ◽  
pp. 234-248
Author(s):  
Shin-ichi TAKECHI ◽  
Toshiyuki SASAKI ◽  
Kosuke YOKOZEKI ◽  
Hiroshi SHIMBO ◽  
Yoshihiro AKIYAMA ◽  
...  
Keyword(s):  
Radioactive Waste ◽  
Waste Disposal ◽  
Radioactive Waste Disposal ◽  
Filler Material ◽  
Disposal Facility

Method of Designing Bentonite/Sand Mixture to Achieve the Target Permeability

1994 ◽  
Vol 353 ◽  
Author(s):  
Hitoshi Nakashima ◽  
Takashi Ishii ◽  
Tatsuro Nagasawa ◽  
Nobuhide Ogata ◽  
Hideo Komine
Keyword(s):  
Radioactive Waste ◽  
Waste Disposal ◽  
Void Ratio ◽  
Radioactive Waste Disposal ◽  
Permeability Test ◽  
Sand Mixture ◽  
Compaction Test ◽  
Disposal Facility ◽  
Effective Component ◽  
Effective Void Ratio

AbstractBentonite/sand mixture is expected to be an effective component of barriers for radioactive waste disposal facility. Impermeable mixture can be obtained through enrichment of the bentonite content,but it is difficult to estimate a permeability of bentonite/sand mixture before permeability test. At designing of bentonite/sand mixture, we have to decide which sand to be used, and what bentonite content is. But.this means that designing will be a time-consuming task. In this report, we made many kinds of bentonite/sand mixtures using some kinds of sand with different bentonite content, and permeability tests were conducted for these mixtures. After examination of the permeability tests results, the effective void ratio of bentonite/sand mixture which was obtained by compaction test, is an efficient parameter for estimation of the permeability. Last of all, we propose the method of designing bentonite/sand mixture using the effective void ratio.

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