{"title":"聚合物洗脱对膨润土-聚合物复合土工合成粘土衬垫与土工膜界面抗剪强度的影响","authors":"Jiannan Chen, S. Gustitus, C. Benson","doi":"10.3208/jgssp.v09.cpeg033","DOIUrl":null,"url":null,"abstract":"Interface shear strength between bentonite-polymer composite geosynthetic clay liners (BPC-GCLs) and a textured geomembrane (GM) was investigated and compared to the interface shear strength between conventional Na-bentonite GCLs (NaB-GCLs) and the GM. Lower peak shear strength was observed in BPC-GCL/GM interfaces compared to NaB-GCL/GM interfaces under the same normal stress. Elution of hydrated polymer gel with low shear strength into the BPC-GCL/GM interface was identified as the cause of lower interface shear strength.. Polymer elution was greatest during hydration, but also occurred during shearing.","PeriodicalId":283909,"journal":{"name":"Japanese Geotechnical Society Special Publication","volume":"14 17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Effect of polymer elution on interface shear strength between bentonite-polymer composite geosynthetic clay liners and geomembranes\",\"authors\":\"Jiannan Chen, S. Gustitus, C. Benson\",\"doi\":\"10.3208/jgssp.v09.cpeg033\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Interface shear strength between bentonite-polymer composite geosynthetic clay liners (BPC-GCLs) and a textured geomembrane (GM) was investigated and compared to the interface shear strength between conventional Na-bentonite GCLs (NaB-GCLs) and the GM. Lower peak shear strength was observed in BPC-GCL/GM interfaces compared to NaB-GCL/GM interfaces under the same normal stress. Elution of hydrated polymer gel with low shear strength into the BPC-GCL/GM interface was identified as the cause of lower interface shear strength.. Polymer elution was greatest during hydration, but also occurred during shearing.\",\"PeriodicalId\":283909,\"journal\":{\"name\":\"Japanese Geotechnical Society Special Publication\",\"volume\":\"14 17 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-10-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Japanese Geotechnical Society Special Publication\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3208/jgssp.v09.cpeg033\",\"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.cpeg033","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of polymer elution on interface shear strength between bentonite-polymer composite geosynthetic clay liners and geomembranes
Interface shear strength between bentonite-polymer composite geosynthetic clay liners (BPC-GCLs) and a textured geomembrane (GM) was investigated and compared to the interface shear strength between conventional Na-bentonite GCLs (NaB-GCLs) and the GM. Lower peak shear strength was observed in BPC-GCL/GM interfaces compared to NaB-GCL/GM interfaces under the same normal stress. Elution of hydrated polymer gel with low shear strength into the BPC-GCL/GM interface was identified as the cause of lower interface shear strength.. Polymer elution was greatest during hydration, but also occurred during shearing.
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