Experimental study on influence of Na-bentonite on viscosity of cement-bentonite slurry
The viscosity of cement-bentonite (CB) slurry has an important impact on its construction quality and engineering utility. This study focuses on the mechanism of how Na-bentonite (Na-B) influences the viscosity of CB slurry. Four types of Na-B were selected to prepare bentonite slurry and CB slurry,...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525001056 |
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| author | Zheng Wei Wei Cui Ri-cheng Miao |
| author_facet | Zheng Wei Wei Cui Ri-cheng Miao |
| author_sort | Zheng Wei |
| collection | DOAJ |
| description | The viscosity of cement-bentonite (CB) slurry has an important impact on its construction quality and engineering utility. This study focuses on the mechanism of how Na-bentonite (Na-B) influences the viscosity of CB slurry. Four types of Na-B were selected to prepare bentonite slurry and CB slurry, followed by the design of tests to analyze the viscosity differences. Based on these results, microscopic tests, including X-ray diffraction (XRD), nuclear magnetic resonance (NMR), and field emission scanning electron microscopy (FESEM), were conducted to explain the reasons for the different properties of different bentonite slurries and their CB slurries. The analysis demonstrates that the variation in viscosity of bentonite slurry can be elucidated by the principles of viscosity recovery, low shear viscosity failure, and differences in bentonite composition. Meanwhile, the viscosity of CB slurry is influenced by charge adsorption, hydration products, and the interaction between bentonite and cement. |
| format | Article |
| id | doaj-art-01f6b98ff22b4f91a688278f94da62cc |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-01f6b98ff22b4f91a688278f94da62cc2025-01-28T04:14:38ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04306Experimental study on influence of Na-bentonite on viscosity of cement-bentonite slurryZheng Wei0Wei Cui1Ri-cheng Miao2State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Ground and Foundation Engineering, SINOHYDRO Foundation Engineering CO. LTD, Tianjin 301700, ChinaState Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin University, Tianjin 300072, China; Key Laboratory of Earthquake Engineering Simulation and Seismic Resilience of China Earthquake Administration, Tianjin University, Tianjin 300350, ChinaState Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin University, Tianjin 300072, China; Correspondence to: School of Civil Engineering, Tianjin University, Tianjin 300072, China.The viscosity of cement-bentonite (CB) slurry has an important impact on its construction quality and engineering utility. This study focuses on the mechanism of how Na-bentonite (Na-B) influences the viscosity of CB slurry. Four types of Na-B were selected to prepare bentonite slurry and CB slurry, followed by the design of tests to analyze the viscosity differences. Based on these results, microscopic tests, including X-ray diffraction (XRD), nuclear magnetic resonance (NMR), and field emission scanning electron microscopy (FESEM), were conducted to explain the reasons for the different properties of different bentonite slurries and their CB slurries. The analysis demonstrates that the variation in viscosity of bentonite slurry can be elucidated by the principles of viscosity recovery, low shear viscosity failure, and differences in bentonite composition. Meanwhile, the viscosity of CB slurry is influenced by charge adsorption, hydration products, and the interaction between bentonite and cement.http://www.sciencedirect.com/science/article/pii/S2214509525001056Cement-bentonite slurryViscosityNa-bentoniteMicrostructure analysisSelf-hardening slurryCut-off wall |
| spellingShingle | Zheng Wei Wei Cui Ri-cheng Miao Experimental study on influence of Na-bentonite on viscosity of cement-bentonite slurry Case Studies in Construction Materials Cement-bentonite slurry Viscosity Na-bentonite Microstructure analysis Self-hardening slurry Cut-off wall |
| title | Experimental study on influence of Na-bentonite on viscosity of cement-bentonite slurry |
| title_full | Experimental study on influence of Na-bentonite on viscosity of cement-bentonite slurry |
| title_fullStr | Experimental study on influence of Na-bentonite on viscosity of cement-bentonite slurry |
| title_full_unstemmed | Experimental study on influence of Na-bentonite on viscosity of cement-bentonite slurry |
| title_short | Experimental study on influence of Na-bentonite on viscosity of cement-bentonite slurry |
| title_sort | experimental study on influence of na bentonite on viscosity of cement bentonite slurry |
| topic | Cement-bentonite slurry Viscosity Na-bentonite Microstructure analysis Self-hardening slurry Cut-off wall |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525001056 |
| work_keys_str_mv | AT zhengwei experimentalstudyoninfluenceofnabentoniteonviscosityofcementbentoniteslurry AT weicui experimentalstudyoninfluenceofnabentoniteonviscosityofcementbentoniteslurry AT richengmiao experimentalstudyoninfluenceofnabentoniteonviscosityofcementbentoniteslurry |