JP5933930B2 - 止水性充填材、該止水性充填材による人工多重バリア用充填材 - Google Patents
止水性充填材、該止水性充填材による人工多重バリア用充填材 Download PDFInfo
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- JP5933930B2 JP5933930B2 JP2011091713A JP2011091713A JP5933930B2 JP 5933930 B2 JP5933930 B2 JP 5933930B2 JP 2011091713 A JP2011091713 A JP 2011091713A JP 2011091713 A JP2011091713 A JP 2011091713A JP 5933930 B2 JP5933930 B2 JP 5933930B2
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- 239000000440 bentonite Substances 0.000 claims description 52
- 229910000278 bentonite Inorganic materials 0.000 claims description 52
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
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- 239000010881 fly ash Substances 0.000 claims description 19
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- 239000002901 radioactive waste Substances 0.000 claims description 14
- 229910001424 calcium ion Inorganic materials 0.000 description 31
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 29
- 230000008961 swelling Effects 0.000 description 23
- 239000004568 cement Substances 0.000 description 16
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- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
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- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
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- 239000002440 industrial waste Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
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- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/16—Processing by fixation in stable solid media
- G21F9/162—Processing by fixation in stable solid media in an inorganic matrix, e.g. clays, zeolites
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
- G21F9/36—Disposal of solid waste by packaging; by baling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Sealing Material Composition (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Description
十分な止水性能を確保しつつ、膨張の絶対量を確保する観点から、ポゾラン物質としてJIS規格のI種もしくはII種のフライアッシュを用いる場合については、内割で5重量%以上15重量%以下とする。
本願発明の止水性充填材は、Na型ベントナイトを主体とした非セメント系の充填材であってポゾラン物質を含み、カルシウムイオンの作用によるCa型化、変質による膨潤力の低下を起し難いものである。そして、Na型ベントナイトが膨潤して通水可能な間隙を減少させることによって止水性を発揮する。また、カルシウムイオンが存在するとそれとポゾラン物質とのポゾラン反応やポゾラン物質中に存在するアルミニウム分との反応により僅かに固化する。
<使用材料>
・Na型ベントナイト(記号Be);クニゲルV1
・フライアッシュ(記号FA);能代産JISII種相当品(ブレーン値3840cm2/g、密度2.20g/cm3)
・シリカフューム(記号SF);エジプト産
・粉末状Ca(OH)2(記号CH);特級試薬
・水(記号W);蒸留水
1)供試体
所定配合の材料をオムニミキサで練り混ぜ試料を作製した。含水比の調整は霧吹きを用いて調整した。供試体は、圧密試験機を用いて試料の上端から400kPa程度の圧力を作用させ、数時間静置させることで静的に締め固めた。供試体寸法は、直径60mm、高さ5mmの円柱形のものとし、乾燥密度は劣化が評価しやすいように1.30g/cm3、含水比21.0%とした。供試体の種類、材料の配合を表1に示す。
一定鉛直圧下における供試体の一次元変形量を測定することで、供試体の膨潤特性の評価を行った。試験はポゾラン反応を促進させるため40℃環境下で行った。容器を40℃環境下に設置した後、室温状態(40±5℃)の蒸留水又は飽和水酸化カルシウム溶液を注入した。溶液を注入する直前から、一定鉛直圧(10kPa)下における供試体の一次元変形量ΔSを変位計により経時的に測定し、最大の一次元変形量を推定した。鉛直圧は容器のキャップに鉄板を固定することで荷重を加えた。
εS=ΔS/H0×100
ここに、εS;膨潤率、ΔS;供試体の一次元変形量、H0;初期供試体高さ
試験結果を表1と図2、図3に示す。
上記本願発明の止水性充填材は、セメント系材料から溶脱したカルシウムイオンによるNa型ベントナイトの変質が想定される放射性廃棄物処分施設の人工多重バリアに好適なので、人工多重バリア専用の充填材とすることができる。
10…トンネル、20…放射性廃棄物、30…コンクリート製ピット、40…低拡散層、50…低透水層、60…バックフィル層、
100…ガラス固化体、200…オーバーパック、300…緩衝材、400…岩盤
Claims (3)
- Na型ベントナイトを主体とした止水性充填材であって、前記ベントナイトにポゾラン物質であるJIS規格のI種もしくはII種のフライアッシュを内割で5重量%以上15重量%以下混和してなることを特徴とする止水性充填材。
- Na型ベントナイトを主体とした止水性充填材であって、前記ベントナイトにポゾラン物質であるシリカフュームを内割で1重量%以上3重量%以下混和してなることを特徴とする止水性充填材。
- 請求項1又は2に記載の止水性充填材を用いた充填材であって、放射性廃棄物処分施設の人工多重バリアにおける低透水層に用いられることを特徴とする人工多重バリア用充填材。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011091713A JP5933930B2 (ja) | 2011-04-18 | 2011-04-18 | 止水性充填材、該止水性充填材による人工多重バリア用充填材 |
US14/112,076 US9446380B2 (en) | 2011-04-18 | 2011-10-26 | Water-blocking filler and filler for engineered multi-barriers using said water-blocking filler |
PCT/JP2011/074606 WO2012144099A1 (ja) | 2011-04-18 | 2011-10-26 | 止水性充填材、該止水性充填材による人工多重バリア用充填材 |
CA2833446A CA2833446C (en) | 2011-04-18 | 2011-10-26 | Water-blocking filler and filler for engineered multi-barriers using said water-blocking filler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2011091713A JP5933930B2 (ja) | 2011-04-18 | 2011-04-18 | 止水性充填材、該止水性充填材による人工多重バリア用充填材 |
Publications (2)
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JP2012224694A JP2012224694A (ja) | 2012-11-15 |
JP5933930B2 true JP5933930B2 (ja) | 2016-06-15 |
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JP2011091713A Active JP5933930B2 (ja) | 2011-04-18 | 2011-04-18 | 止水性充填材、該止水性充填材による人工多重バリア用充填材 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9446380B2 (ja) |
JP (1) | JP5933930B2 (ja) |
CA (1) | CA2833446C (ja) |
WO (1) | WO2012144099A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6389596B2 (ja) * | 2013-09-09 | 2018-09-12 | 五洋建設株式会社 | 遮水材 |
JP2015141192A (ja) * | 2014-01-30 | 2015-08-03 | 一般財団法人電力中央研究所 | 地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型を収容する容器 |
DE102014002390B3 (de) * | 2014-02-24 | 2015-05-13 | Cura Ingenieurgesellschaft Mbh | Behälter zur Lagerung von radioaktivem Abfall |
KR101565549B1 (ko) * | 2014-03-03 | 2015-11-03 | 한국과학기술원 | 합성 제올라이트가 혼입된 저강도 고유동성 무시멘트 채움재 및 그 제조방법 |
IL231803A (en) | 2014-03-30 | 2016-06-30 | Zvi Borowitsh | Tunnel detection method and system |
JP6299034B2 (ja) * | 2014-06-16 | 2018-03-28 | 一般財団法人電力中央研究所 | 膨潤性材料の挙動評価装置及び膨潤性材料の挙動評価試験方法 |
WO2017022345A1 (ja) | 2015-07-31 | 2017-02-09 | 勝義 近藤 | 放射性廃棄物処分場用セメント系材料 |
TW202036599A (zh) * | 2018-12-18 | 2020-10-01 | 美商深絕公司 | 放射性廢料貯存系統及方法 |
US10878972B2 (en) | 2019-02-21 | 2020-12-29 | Deep Isolation, Inc. | Hazardous material repository systems and methods |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US4950426A (en) | 1989-03-31 | 1990-08-21 | Westinghouse Electric Corp. | Granular fill material for nuclear waste containing modules |
JP2001002956A (ja) | 1999-06-24 | 2001-01-09 | Taiheiyo Cement Corp | 遮水材 |
JP4096328B2 (ja) | 2001-11-09 | 2008-06-04 | 三菱マテリアル資源開発株式会社 | 放射性廃棄物埋設用充填材 |
JP3984088B2 (ja) | 2002-03-29 | 2007-09-26 | 鹿島建設株式会社 | 処分場構造物 |
US7452417B2 (en) * | 2004-01-29 | 2008-11-18 | Halliburton Energy Services, Inc. | Downhole servicing compositions having high thermal conductivities and methods of using the same |
CA2727983C (en) * | 2008-06-19 | 2016-08-16 | Gunma University | Artificial multi-barrier for a radioactive waste treatment facility |
JP5146756B2 (ja) | 2008-08-05 | 2013-02-20 | 清水建設株式会社 | 放射性廃棄物の埋設処分施設および放射性廃棄物の埋設方法 |
JP5641396B2 (ja) | 2010-03-30 | 2014-12-17 | 住友大阪セメント株式会社 | 軽量注入材および軽量注入材の注入工法 |
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2011
- 2011-04-18 JP JP2011091713A patent/JP5933930B2/ja active Active
- 2011-10-26 CA CA2833446A patent/CA2833446C/en not_active Expired - Fee Related
- 2011-10-26 WO PCT/JP2011/074606 patent/WO2012144099A1/ja active Application Filing
- 2011-10-26 US US14/112,076 patent/US9446380B2/en active Active
Also Published As
Publication number | Publication date |
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US20140034875A1 (en) | 2014-02-06 |
WO2012144099A1 (ja) | 2012-10-26 |
JP2012224694A (ja) | 2012-11-15 |
CA2833446A1 (en) | 2012-10-26 |
US9446380B2 (en) | 2016-09-20 |
CA2833446C (en) | 2019-04-23 |
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