{"title":"热膨润土-砂混合物无侧限抗压强度化学暴露比较","authors":"T. Nishimura, J. Koseki","doi":"10.3208/jgssp.v09.cpeg002","DOIUrl":null,"url":null,"abstract":"The construction design of deep geological repositories for high-level radioactive waste (HLW) consist of the construction of a barrier system around the waste containers produced by a sealing hard stiffness material. In this paper, thermal-hydraulic-mechanical-chemical properties of bentonite-sand were presented for geological and engineered barrier through Na-type bentonite. Unconfined compressive strengths were measured, and compared under unsaturated/saturated condition, with/without heating effect and/or chemical exposure due to salt components. Saturated specimens were swelled both distilled water and salt water with salt component of 3.5 %. Also, heating effort leaded decreasing of unconfined compressive strength for saturated bentonite-sand samples.","PeriodicalId":283909,"journal":{"name":"Japanese Geotechnical Society Special Publication","volume":"200 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparison of unconfined compressive strength on heated bentonite-sand mixture by chemical exposure\",\"authors\":\"T. Nishimura, J. Koseki\",\"doi\":\"10.3208/jgssp.v09.cpeg002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The construction design of deep geological repositories for high-level radioactive waste (HLW) consist of the construction of a barrier system around the waste containers produced by a sealing hard stiffness material. In this paper, thermal-hydraulic-mechanical-chemical properties of bentonite-sand were presented for geological and engineered barrier through Na-type bentonite. Unconfined compressive strengths were measured, and compared under unsaturated/saturated condition, with/without heating effect and/or chemical exposure due to salt components. Saturated specimens were swelled both distilled water and salt water with salt component of 3.5 %. Also, heating effort leaded decreasing of unconfined compressive strength for saturated bentonite-sand samples.\",\"PeriodicalId\":283909,\"journal\":{\"name\":\"Japanese Geotechnical Society Special Publication\",\"volume\":\"200 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-10-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Japanese Geotechnical Society Special Publication\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3208/jgssp.v09.cpeg002\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese Geotechnical Society Special Publication","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3208/jgssp.v09.cpeg002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Comparison of unconfined compressive strength on heated bentonite-sand mixture by chemical exposure
The construction design of deep geological repositories for high-level radioactive waste (HLW) consist of the construction of a barrier system around the waste containers produced by a sealing hard stiffness material. In this paper, thermal-hydraulic-mechanical-chemical properties of bentonite-sand were presented for geological and engineered barrier through Na-type bentonite. Unconfined compressive strengths were measured, and compared under unsaturated/saturated condition, with/without heating effect and/or chemical exposure due to salt components. Saturated specimens were swelled both distilled water and salt water with salt component of 3.5 %. Also, heating effort leaded decreasing of unconfined compressive strength for saturated bentonite-sand samples.
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