Academic literature on the topic 'Bentonite'

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Journal articles on the topic "Bentonite"

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Pan, Yi, Xinyue Zhang, Chengcheng Ji, et al. "Modification Method of High-Efficiency Organic Bentonite for Drilling Fluids: A Review." Molecules 28, no. 23 (2023): 7866. http://dx.doi.org/10.3390/molecules28237866.

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The requirements for drilling bentonites are tightening due to ever-increasing demands for petroleum resources, coupled with cost and reaction technology constraints. In addition to raising the risk of drilling, bentonite’s poor performance also raises the possibility of safety incidents and significant financial losses. Organically modified bentonites effectively reduce the consumption of drilling fluids, conserve resources, and lessen environmental effects. This paper aims to provide an overview of the several organic modification methods of bentonite for drilling fluids. It also evaluates t
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Aji, Navela Rahma, Emas Agus Prastyo Wibowo, Resti Ujiningtyas, Hestin Wirasti, and Nuni Widiarti. "Sintesis Komposit TiO2-Bentonit dan Aplikasinya untuk Penurunan BOD dan COD Air Embung UNNES." Jurnal Kimia VALENSI 2, no. 2 (2016): 114–19. http://dx.doi.org/10.15408/jkv.v2i2.3620.

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Abstrak Telah disintesis komposit TiO2-bentonit untuk penurunan BOD dan COD. Penelitian ini bertujuan untuk mengetahui proses pembentukan komposit TiO2-Bentonit serta mengetahui katalis terbaik dalam proses fotodegradasi air embung. Penelitian diawali dengan preparasi TiO2-Bentonit. Hasil pembentukan komposit dikarakterisasi dengan menggunakan X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR) dan Scanning Electron Microscope (SEM). Katalis yang diuji adalah TiO2, bentonit, TiO2-bentonit yang diaplikasikan ke air embung dengan waktu penyinaran selama 30 menit.Terbentuknya komposit TiO2
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Brezovska, Snezana, Biljana Marina, Donco Burevski, Biljana Angjuseva, Vasa Bosevska, and Lepa Stojanovska. "Adsorption properties and porous structure of sulfuric acid treated bentonites determined by the adsorption isotherms of benzene vapor." Journal of the Serbian Chemical Society 70, no. 1 (2005): 33–40. http://dx.doi.org/10.2298/jsc0501033b.

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In a previous paper, adsorption isotherms of benzene vapor on natural bentonite from Ginovci, Macedonia, and forms acid activated with 10% and 15% solutions of hydrochloric were interpreted by means of the Dubinin-Radushkevich-Stoeckli and Dubinin-Astakhov equations; the investigation has been continued with bentonites acid activated with 10% and 15% solutions of sulfuric acid where X-ray analysis indicates smaller structural changes. Using the above equations, the heterogeneity of the micropores and the energetic heterogeneity of the bentonites were determined from the differential distributi
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Lathifah, Tiva, Nia Yuliani, and Gladys Ayu Paramita Kusumah Wardhani. "BENTONIT TERAKTIVASI ASAM SULFAT SEBAGAI ADSORBEN DALAM PEMURNIAN PELUMAS BEKAS." Jurnal Sains Natural 9, no. 1 (2019): 1. http://dx.doi.org/10.31938/jsn.v9i1.170.

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Activated Bentonits of Sulfatic Acid as Adsorben in Purchase of Used Lubricants Recycling of used lubricating oil is one of the alternatives in the framework of efficiency, saving oil consumption, and reducing pollution. One effort to purify used lubricating oil is to separate impurities through the adsorption method. The adsorbent that can be used is bentonite. Activation of bentonite using acid will produce adsorbent with an active side and greater surface acidity so that the adsorption ability is higher than before activated. Characteristics of lubricating oil produced are: kinematic viscos
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Liu, Hao, Bing Xie, and Yue-lin Qin. "Effect of Bentonite on the Pelleting Properties of Iron Concentrate." Journal of Chemistry 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/7639326.

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The physical and chemical properties such as particle size, montmorillonite content, swelling degree, water absorption, and blue absorption of A, B, and C bentonites were studied under laboratory conditions. The effects of adding different quality and different proportion of bentonite on falling strength, compression strength, and shock temperature of green pellet were investigated. The experimental results show that the montmorillonite content, water absorption, and methylene blue absorption of bentonite-B are the highest. And the quality of bentonite-B is the best, followed by bentonite-C an
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Buzetzky, D., E. M. Kovács, M. N. Nagy, and J. Kónya. "Sorption of pertechnetate anion by cation modified bentonites." Journal of Radioanalytical and Nuclear Chemistry 322, no. 3 (2019): 1771–76. http://dx.doi.org/10.1007/s10967-019-06852-8.

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Abstract Pertechnetate anion sorption was investigated on modified bentonites. Mn-, Cr-, Sn-bentonites were prepared by ion exchange process to sorb radioactive pertechnetate ions. In the case of Mn-, Cr-bentonite the sorb amount of metal ion was 70–90% of the cation exchange capacity of the bentonite which is expected. Interestingly in the case of Sn-bentonite this amount was 1.42 times higher than the cation exchange capacity. On Mn-bentonite the sorption was 35% at pH 5. The removal of pertechnetate ions was 100% on Cr-, Sn-bentonites and the significant sorption was achieved below 650 mV/S
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A.P., Ihom, Agunsoye Johnson, Bam A., and Anbua E.E. "INVESTIGATION OF THE PROPERTIES OF A NIGERIAN AND A LIBERIAN BENTONITE FOR FOUNDRY APPLICATION." Continental J. Engineering Sciences 4 (July 22, 2009): 6–11. https://doi.org/10.5281/zenodo.833691.

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A Nigerian, and a Liberian Bentonite has been studied. The two Bentonite samples which were obtained from the natural geological source were critically studied. The study covered the physical, chemical, and the foundry properties of the two Bentonites. The sieve analysis of the sand used for the investigation of the foundry properties was also carried out. The result showed that the Liberian Bentonite is a sodium based Bentonite, with a Na<sub>2</sub>O content of 1.91% with only traces of CaO. The Bentonite equally had a swelling index of 15, and green shear and compression strengths of 6.90KN
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Wijayanto, Sofian, and Sunyoto Sunyoto. "Variasi Komposisi Bentonit pada Cetakan Pasir Blok Silinder Mesin Pemotong Rumput." Jurnal Dinamika Vokasional Teknik Mesin 4, no. 1 (2019): 31–38. http://dx.doi.org/10.21831/dinamika.v4i1.24281.

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Purpose of this research is to find out how the influence of variation of bentonite composition on the sand mold to casting defect, hardness, and microstructure. Variations of bentonite composition used were 0%, 8%, and 16%. The data of the research were analyzed directly using graphs and micro photographs which were then drawn conclusions from the results of the study. Needle-hole defects are found in all variations of bentonite composition. The porosity defect was found only in the variation of 0% and 16% bentonite compositions. The highest hardness value was obtained from the 8% bentonite c
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LV, Yiyan, Haoqing XU, Pengming JIANG, and Tao WU. "Effect of Bentonite Admixture Content on Effective Porosity and Hydraulic Conductivity of Clay-based Barrier Backfill Materials." Materials Science 29, no. 3 (2023): 340–46. http://dx.doi.org/10.5755/j02.ms.32075.

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Clay-based barrier wall has been diffusely employed as vertical barriers. Nevertheless, there were few project practices of these walls in China. And few research have been performed to study the impact on the permeability of the addition of domestic bentonites. To solve this problem, the influences of bentonite level on hydraulic conductivity, porosity and clay-bound water of soil-bentonite admixtures have been assessed employing a flexible-wall test and water centrifugal dewatering experiment with various bentonites. The outcomes revealed that as barrier walls are constructed by blending ben
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Gerasin, Viktor A., and Viktor V. Kurenkov. "JOINT TREATMENT OF BENTONITES WITH INORGANIC POLYELECTROLYTES AND CATIONIC SURFACTANTS IN ORDER TO PROMOTE ORGANOCLAY EXFOLIATION." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 5 (2019): 71–77. http://dx.doi.org/10.6060/ivkkt.20196205.5746.

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A new approach to production of organomodified bentonites is offered. Bentonites are consecutively treated with inorganic polyelectrolyte (sodium silicate solution) and quaternary ammonium salts, as a result exfoliated organoclays are obtained. An ejector set up has been used for treatment of natural bentonites. Samples of activated bentonites treated in the ejector set up with sodium silicate solution (up to 21 g of sodium silicate per 100 g of bentonite) were prepared. Structure of the obtained bentonite and organoclay samples was established by X-ray diffraction analysis. It has been shown
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Dissertations / Theses on the topic "Bentonite"

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Ouyang, Shoung. "Sealing performance assessments of bentonite and bentonite/crushed rock plugs." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185275.

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Bentonite and mixtures of bentonite and crushed rock are potential sealing materials for high level nuclear waste repositories. The materials have been used to form cap layers to reduce infiltration for mined waste tailings and can also be used to construct clay liners for municipal as well as industrial waste managements. This study includes a systematic investigation of the sealing performance of bentonite and bentonite/crushed rock plugs under diverse conditions. American Colloid C/S granular bentonite and Apache Leap tuff have been mixed to prepare samples for laboratory flow testing. Bent
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ANDRADE, Daniela de Lourdes Anjos Coutinho Simões. "Influência das variáveis de processo na formação e propriedades de nanocompósitos polipropileno/bentonita." Universidade Federal de Campina Grande, 2009. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1691.

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Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-09-12T12:56:27Z No. of bitstreams: 1 DANIELA DE LOURDES ANJOS COUTINHO SIMÕES ANDRADE - TESE (PPGEP) 2009.pdf: 2248344 bytes, checksum: 28a93ae4236853f59fe35037c2ab6f28 (MD5)<br>Made available in DSpace on 2018-09-12T12:56:27Z (GMT). No. of bitstreams: 1 DANIELA DE LOURDES ANJOS COUTINHO SIMÕES ANDRADE - TESE (PPGEP) 2009.pdf: 2248344 bytes, checksum: 28a93ae4236853f59fe35037c2ab6f28 (MD5) Previous issue date: 2009<br>A proposta deste trabalho foi preparar nanocompósitos de polipropileno/compatibilizante/bentonita, pelo método d
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Ju, Shuohui. "Electroosmotic dewatering of bentonite suspensions." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59868.

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Electroosmotic dewatering of Bentonite suspensions under conditions of constant DC voltage and constant DC current was investigated experimentally in a column 5 cm in diameter. The suspensions were prepared with CaCl$ sb2$ in distilled water with concentrations up to 1 M. The initial solid content was between 9.1 wt% and 26 wt% and the initial bed height ranged from 1.0 cm to 5.2 cm. Constant voltages from 4.0 V to 8.0 V and constant currents from 90 mA to 110 mA were used.<br>Electroosmosis removed 20-60% of the water with energy expenditures well below the energy required to vaporize the wat
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Howarth, Leslie George. "Rheological studies of bentonite dispersions." Thesis, University of Bristol, 1986. http://hdl.handle.net/1983/8cd3b134-1a67-40b0-a779-70559df77948.

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Magalhães, Vladmir Alvim Vieira. "Bentonita sódica com propriedade antibacteriana para inibição de biocorrosão em poços tubulares profundos /." Araraquara, 2016. http://hdl.handle.net/11449/141943.

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Orientador: Rodrigo Fernando Costa Marques<br>Banca: Miguel Jafelicci Junior<br>Banca: Wilton Rogério Lustri<br>Resumo: O presente trabalho consiste na funcionalização do fluido de perfuração conhecido como bentonita (BN) com grupos funcionais sulfidril (SH) provenientes do reagente 3- mercaptopropil-trimetoxissilano (MPTS) e nanopartículas de prata (NPs/Ag), visando a inibição da biocorrosão por oxidação de bactérias. Para tanto, a argila do tipo bentonita, constituída principalmente do argilomineral montmorilonita, foi modificada através de rota de inserção de organossilano e nanopartículas
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Hume, Harold B. "Gas breakthrough in compacted Avonlea bentonite." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ35063.pdf.

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Mollins, Lee Hamilton. "The design of bentonite-sand mixtures." Thesis, University of Leeds, 1996. http://etheses.whiterose.ac.uk/4122/.

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One-dimensional and isotropic swelling tests, hydraulic conductivity tests and triaxial compression tests have been performed at applied stresses up to 450kPa on sodium bentonite powder, sand and compacted sodium bentonite-sand mixtures (5, 10, and 20% bentonite by dry weight). This was done to investigate the use of bentonite improved soils for waste containment, and study the fundamental geotechnical properties of bentonite-sand mixtures using a classical soil mechanics approach. It was found that air dried bentonite powder swells to reach a state described by a single straight line on a plo
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Visudmedanukul, Punlop. "Solute Transport Through Cement-Bentonite Barriers." 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/123466.

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Sherriff, Nicholas Kevin. "Radionuclide dissociation from bentonite colloid systems." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/radionuclide-dissociation-from-bentonite-colloid-systems(43918efc-26e4-4e41-a450-3e209c20340d).html.

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Deep geological disposal is a method of managing high level, long-­‐lived nuclear waste. It is a concept that many countries are exploring for the possibility of managing nuclear waste generated from power production. For deep geological disposal to be viable then areas where problems may surface have to be explored. Bentonite clay has been proposed as the material to be used for the backfill of the repositories. Its swelling properties ensure that it will expand to plug the bore holes that will be made for the waste, its impermeable nature restricts contact between groundwater and the waste p
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Schenning, Jessica A. "Hydraulic performance of polymer modified bentonite." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000403.

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Books on the topic "Bentonite"

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Praetorius, Steffen, and Britta Schößer. Bentonite Handbook. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783433606520.

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A, Dixon D., and Whiteshell Laboratories, eds. Water uptake and stress development in bentonites and bentonite-sand buffer materials. Whiteshell Laboratories, 1996.

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K, Daemen J. J., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Regulatory Applications., and University of Arizona. Dept. of Mining and Geological Engineering., eds. Sealing performance of bentonite and bentonite/crushed rock borehole plugs. Division of Regulatory Applications, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1992.

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K, Daemen J. J., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Regulatory Applications., and University of Arizona. Dept. of Mining and Geological Engineering., eds. Sealing performance of bentonite and bentonite/crushed rock borehole plugs. Division of Regulatory Applications, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1992.

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Gray, Jerry J. Bentonite in Oregon: Occurrences, analyses, and economic potential / by Jerry J. Gray, Ronald P. Geitgey, and Gary L. Baxter. Dept. of Geology and Mineral Industries, 1989.

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Gray, Jerry J. Bentonite in Oregon: Occurrences, analyses, and economic potential. State of Oregon, Dept. of Geology and Mineral Industries, 1989.

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Thorson, Thomas A. Black Hills Bentonite, LLC. The Newcomen Society of the United States, 1998.

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Hosterman, John W. Bentonite and fuller's earth resources of the United States. U.S. Dept. of the Interior, U.S. Geological Survey, 1992.

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Hosterman, John W. Bentonite and fuller's earth resources of the United States: A compilation on the uses, geology, mineralogy, and distribution of bentonite and fuller's earth in the United States. U.S. G.P.O., 1992.

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Kazuya, Idemitsu, and Dōryokuro Kakunenryō Kaihatsu Jigyōdan. Tōkai Jigyōsho., eds. Plutonium diffusivity in compacted bentonite. Tokai Works, Power Reactor and Nuclear Fuel Development Corporation, 1989.

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Book chapters on the topic "Bentonite"

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Bährle-Rapp, Marina. "Bentonite." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_1072.

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Gooch, Jan W. "Bentonite." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_1203.

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Gooch, Jan W. "Bentonite Clay." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_1204.

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Bährle-Rapp, Marina. "Stearalkonium Bentonite." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9976.

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Bährle-Rapp, Marina. "Quaternium-18 Bentonite." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_8701.

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Zhang, Chun-Liang, Ju Wang, Stephan Kaufhold, et al. "Experimental Basis." In Thermo-Hydro-Mechanical-Chemical (THMC) Processes in Bentonite Barrier Systems. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-53204-7_3.

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Tong, Shan, Kristin M. Sample-Lord, Gretchen L. Bohnhoff, and Andrew B. Balken. "Salt Diffusion Through Sodium Bentonite and Bentonite Polymer Composite." In Environmental Science and Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2221-1_62.

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Ouyang, S., and J. J. K. Daemen. "Performance of Bentonite and Bentonite/Crushed Rock Borehole Seals." In Sealing of Boreholes and Underground Excavations in Rock. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1505-3_5.

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Li, Zhihong, Yu Gu, Xiaonan Jia, Xuehui Hu, Xuqun Zhang, and Zhaofeng Li. "Investigating Effect of Bentonite Support Fluid on Soil-Pile Interface Behavior by Ultra-Weak Fiber Bragg Gratings." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4090-1_28.

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AbstractEngineering practice indicates that the use of bentonite support fluid in borehole may significantly reduce the pile bearing capacity. To estimate the reduction quantitively, the static load test in field was performed on two kinds of piles with and without bentonite fluid, i.e., the slurry displacement (SD) pile and continuous flight auger (CFA) pile. Test site was selected in Huangpu District of Guangdong, and two CFA piles and one SD pile were installed. Sensing technology of ultra-weak fiber Bragg grating was applied to measure the soil-pile interface behavior, with a series of sen
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Komine H. "Theoretical equations for evaluating hydraulic conductivities of bentonite based buffer and backfill." In Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2005. https://doi.org/10.3233/978-1-61499-656-9-2289.

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Theoretical new equations for evaluating the hydraulic conductivity of compacted bentonites and bentonite-sand mixtures are derived for designing bentonite based buffer and backfill materials to fill high-level nuclear waste repositories. New equations for evaluating the velocity of interlayer-water flow between two montmorillonite layers considering the swelling behaviors of montmorillonite are proposed. Furthermore, a calculating method for the hydraulic conductivity of compacted bentonite and bentonite-sand mixtures is presented by combining the new equations with the equations for evaluati
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Conference papers on the topic "Bentonite"

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Grigoryan, Alexander, Gideon M. Wolfaardt, Simcha Stroes-Gascoyne, et al. "Baseline Distribution and Diversity of MIC-Relevant Microorganisms in Compacted Bentonites after Incubation for 1 Year." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-15020.

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Abstract The Materials Corrosion Test (MaCoTe) project at the Grimsel Test Site (Switzerland) is being used to provide experimental data for modeling the effect of the bentonite buffer on microbially-influenced corrosion (MIC) in deep geological repositories for spent nuclear fuel. Using culture-based and molecular culture-independent methods, we evaluated bacterial characteristics in bentonites compacted to bulk densities of 1.25 g/cm3 and 1.5 g/cm3 after one-year in-situ incubation in MaCoTe borehole modules. Abundance of aerobic and anaerobic microorganisms in the uncompacted MX-80 bentonit
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Ali, Sameer, and Rana Muhammad Waqas. "Effect of Bentonite &amp; Polypropylene Fibres on Fresh and Hardened Properties of Geopolymer Concrete with Slag and Alkali Solution." In Technology Enabled Civil Infrastructure Engineering & Management Conference. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-sua4eq.

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The construction industry significantly contributes to global CO2 emissions and environmental impact, mainly due to concrete usage, which consumes vast resources and energy while emitting CO2. Researchers are exploring alternatives such as geopolymer concrete (GPC), formed without traditional cement but through alkaline activation of industrial by-products like fly ash, ground granulated blast furnace slag, bentonite, and metakaolin clay. This study evaluates the effects of incorporating bentonite and polypropylene (PP) fibers on the workability and strength properties of GPC based on slag. Be
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Cundari, Lia, Saputri Agus Renelda, Nur Hayyu Tagar Molek, Shifa Putri Amaliah, and Feby Azzahra. "Removal of Chromium (VI) from Aqueous Solution Using Bentonite: The Effect of Adsorbent Dose on Characteristic, Isotherm and Kinetic Study." In Sriwijaya International Conference on Engineering and Technology 2023. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-v6q7ym.

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One kind of heavy metal that comes from industrial waste is Cr (VI), which is obtained from steel, textile, tanning, photography, dyes, explosives, matches, and fuel mobilization waste. Cr (VI) is a carcinogen and extremely hazardous to both people and animals. In Indonesia, bentonite is a raw material that is abundantly available. This study aims to investigate the effects of varying adsorbent doses on the properties, % removal, isotherms, and kinetics of adsorption of Cr (VI) from aqueous solution. Adsorbent doses ranged from 10 g/L to 30 g/L for 0–80-minute contact periods. morphological an
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Tanaka, Yukihisa, Takuma Hasegawa, and Kunihiko Nakamura. "Modeling Hydraulic Conductivity and Swelling Pressure of Several Kinds of Bentonites Affected by Salinity of Water." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40013.

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In case of construction of repository for radioactive waste near the coastal area, the effect of salinity of water on hydraulic conductivity as well as swelling pressure of bentonite as an engineered barrier should be considered because it is known that the hydraulic conductivity of bentonite increases and swelling pressure decreases with increasing salinity of water. Though the effect of salinity of water on hydraulic conductivity and swelling pressure of bentonite has been investigated experimentally, it is necessary to elucidate and to model the mechanism of the phenomenon because various k
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Towler, Brian Francis, Herman Victorov, Gabriel Zamfir, and Pompiliu Ignat. "Plugging Wells With Hydrated Bentonite, Part 2: Bentonite Bars." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 2008. http://dx.doi.org/10.2118/115524-ms.

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Fujii, N., C. A. Arcilla, M. Yamakawa, et al. "Natural Analogue Studies of Bentonite Reaction Under Hyperalkaline Conditions: Overview of Ongoing Work at the Zambales Ophiolite, Philippines." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40022.

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Bentonite is one of the safety-critical components of the engineered barrier system for the disposal concepts developed for many types of radioactive waste. However, bentonite — especially the swelling clay component that contributes to its essential barrier functions — is unstable at high pH. To date, results from laboratory tests on bentonite degradation have been ambiguous as the reaction rates are so slow as to be difficult to observe. As such, a key goal in this project is to examine the reaction of natural bentonites in contact with natural hyperalkaline groundwaters to determine if any
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Sato, Haruo. "An Analytical Model on the Sealing Performance of Space for the Design of Buffer Material and Backfill Material." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40067.

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The self-sealing function of the clearances between buffer material and overpack and tunnel wall or disposal pit wall and between backfill material and tunnel wall is expected for bentonite which will be used as buffer material and part of the backfill material. In this study, an analytical theory on the clearance filling performance for both materials was constructed. Volumetric swelling ratio of bentonite (Rvs) and maximum clearance ratio that bentonite can fill clearance (Rsmax) were calculated against dry density for different montmorillonite and silica sand contents of bentonites in disti
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Kalinowski, Birgitta, Patrik Sellin, and Daniel Svensson. "Sulfate Reduction in Bentonite." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1237.

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Marcos, N., L. Kivekäs, and H. Vanhala. "Electrical properties of bentonite." In 4th EEGS Meeting. European Association of Geoscientists & Engineers, 1998. http://dx.doi.org/10.3997/2214-4609.201407142.

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Jefferis, Stephan. "Cement-Bentonite Slurry Systems." In Proceedings of the Fourth International Conference on Grouting and Deep Mixing. American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412350.0001.

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Reports on the topic "Bentonite"

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Ouyang, S., and J. J. K. Daemen. Sealing performance of bentonite and bentonite/crushed rock borehole plugs. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/140792.

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Serrato, M. G. Bentonite mat demonstration. Final report. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/105732.

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Andrews, P. R. A. Bentonite, fuller's earth and kaolinite. Natural Resources Canada/CMSS/Information Management, 1992. http://dx.doi.org/10.4095/328638.

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Cheshire, Michael C., Florie Andre Caporuscio, Michael S. Rearick, Carlos Jove-Colon, and Mary Kate McCarney. Bentonite Evolution Under Experimental Repository Conditions. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1083854.

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Di Pietro, S. A., C. Joseph, and M. Zavarin. Neptunium(IV) Diffusion through Bentonite Clay. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1605055.

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Tinnacher, Ruth M., and James A. Davis. Laboratory Experiments on Bentonite Samples: FY15 Progress. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1225364.

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Ruth M. Tinnacher, Christophe Tournassat, and James A. Davis. Laboratory Experiments on Bentonite Samples: FY16 Progress. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1306333.

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Gupta, Neel, Evan Keffeler, Jakub Hladysz, Stuart Buchholz, Cody Vining, and Ernest Hardin. Improved Creep Testing Approach for Bentonite EBS. Office of Scientific and Technical Information (OSTI), 2024. https://doi.org/10.2172/2349491.

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Dennison, J. Tioga Bentonite in the Appalachian basin: Final report. Office of Scientific and Technical Information (OSTI), 1986. http://dx.doi.org/10.2172/7057656.

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Daemen, J., and Chongwei Ran. Bentonite as a waste isolation pilot plant shaft sealing material. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/434446.

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