Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sodium polyacrylate modified bentonite anti-seepage material for barrier and preparation method of sodium polyacrylate modified bentonite anti-seepage material
The invention provides a sodium polyacrylate modified bentonite anti-seepage material for barrier obstruction and a preparation method thereof, and belongs to the technical field of environmental geotechnical engineering. Water with the mass 10 times that of the anti-seepage material is mixed with the anti-seepage material to obtain pre-hydration slurry, after hydration is conducted for 24 hours, post-hydration slurry is obtained, the viscosity value of the post-hydration slurry at the speed of 6 r/min is 1.3-1.4 times that of the pre-hydration slurry at the speed of 6 r/min, and the viscosity value of the post-hydration slurry at the speed of 6 r/min is 9-10 times that of the post-hydration slurry at the speed of 60 r/min; the permeability coefficient, measured based on an improved filtration test, of the anti-seepage material is smaller than 9 * 10 <-12 > m/s, the processing steps provided by the invention are few in operation procedure and low in energy consumption, and the industrial production cost is remarkably reduced.
本发明提供了一种用于屏障阻隔的聚丙烯酸钠改性膨润土防渗材料及其制备方法，属于环境岩土工程技术领域。用相对于所述防渗材料10倍质量的水与所述防渗材料混合得到水化前浆液，水化24小时后得到水化后浆液，所述水化后浆液在6 r/min的粘度值是所述水化前浆液在6 r/min的粘度值的1.3至1.4倍，所述水化后浆液在6 r/min的粘度值是其在60 r/min的粘度值的9至10倍；基于改进滤失试验测得的所述防渗材料的渗透系数小于9×10‑12m/s，本发明提供的加工步骤操作工序少，能耗低，显著降低了工业化生产成本。
Sodium polyacrylate modified bentonite anti-seepage material for barrier and preparation method of sodium polyacrylate modified bentonite anti-seepage material
The invention provides a sodium polyacrylate modified bentonite anti-seepage material for barrier obstruction and a preparation method thereof, and belongs to the technical field of environmental geotechnical engineering. Water with the mass 10 times that of the anti-seepage material is mixed with the anti-seepage material to obtain pre-hydration slurry, after hydration is conducted for 24 hours, post-hydration slurry is obtained, the viscosity value of the post-hydration slurry at the speed of 6 r/min is 1.3-1.4 times that of the pre-hydration slurry at the speed of 6 r/min, and the viscosity value of the post-hydration slurry at the speed of 6 r/min is 9-10 times that of the post-hydration slurry at the speed of 60 r/min; the permeability coefficient, measured based on an improved filtration test, of the anti-seepage material is smaller than 9 * 10 <-12 > m/s, the processing steps provided by the invention are few in operation procedure and low in energy consumption, and the industrial production cost is remarkably reduced.
本发明提供了一种用于屏障阻隔的聚丙烯酸钠改性膨润土防渗材料及其制备方法，属于环境岩土工程技术领域。用相对于所述防渗材料10倍质量的水与所述防渗材料混合得到水化前浆液，水化24小时后得到水化后浆液，所述水化后浆液在6 r/min的粘度值是所述水化前浆液在6 r/min的粘度值的1.3至1.4倍，所述水化后浆液在6 r/min的粘度值是其在60 r/min的粘度值的9至10倍；基于改进滤失试验测得的所述防渗材料的渗透系数小于9×10‑12m/s，本发明提供的加工步骤操作工序少，能耗低，显著降低了工业化生产成本。
Sodium polyacrylate modified bentonite anti-seepage material for barrier and preparation method of sodium polyacrylate modified bentonite anti-seepage material
一种用于屏障阻隔的聚丙烯酸钠改性膨润土防渗材料及其制备方法
BA TE (Autor:in) / MURATTI DINA (Autor:in) / CHEN JIAKAI (Autor:in) / MENG LONGLONG (Autor:in) / NIE SHAOKAI (Autor:in) / XIA LIANGXIONG (Autor:in)
12.07.2024
Patent
Elektronische Ressource
Chinesisch
Bentonite anti-seepage barrier material and preparation method thereof
| Europäisches Patentamt | 2024
Hydraulic properties of sodium polyacrylate-modified bentonite–sand mixtures
| Online Contents | 2023
Rheological properties of sodium pyrophosphate modified bentonite suspensions for seepage control
| British Library Online Contents | 2014
Rheological properties of sodium pyrophosphate modified bentonite suspensions for seepage control
| Online Contents | 2014