Review of polymer-amended bentonite: Categories, mechanism, modification processes and application in barriers for isolating contaminants

Q Cui, B Chen - Applied Clay Science, 2023 - Elsevier
Polymer-amended bentonite is a kind of high-performance bentonite material, which has
been widely researched and applied in barrier engineering. This paper summarizes the …

[PDF][PDF] Protecting the environment from contamination with barrier systems: advances and challenges

RK Rowe, S Jefferis - … of the 20th International Conference on Soil …, 2022 - researchgate.net
The state-of-the-art for barriers systems control of pollution migration and hydraulic
structures including liner systems for landfills, mine waste, and dams/lagoons are discussed …

Long-term hydraulic conductivity of a bentonite-polymer composite permeated with aggressive inorganic solutions

J Scalia IV, CH Benson, GL Bohnhoff… - … of Geotechnical and …, 2014 - ascelibrary.org
Bentonite was modified to prevent alterations in hydraulic conductivity when permeated with
aggressive inorganic solutions. Acrylic acid within bentonite slurry was polymerized to …

Hydraulic conductivity of bentonite–polymer composite geosynthetic clay liners permeated with coal combustion product leachates

J Chen, H Salihoglu, CH Benson… - Journal of Geotechnical …, 2019 - ascelibrary.org
Experiments were conducted to evaluate the hydraulic conductivity of geosynthetic clay
liners (GCLs) containing bentonite–polymer composites (BPCs) permeated with coal …

Enhanced bentonites for containment of inorganic waste leachates by GCLs

J Scalia IV, GL Bohnhoff… - Geosynthetics …, 2018 - icevirtuallibrary.com
The sensitivity of sodium bentonite (Na-B) to adverse chemical interactions has spurred
development of enhanced bentonites (EBs) for geosynthetic clay liners (GCLs) that provide …

Membrane behavior and diffusion properties of sand/SHMP-amended bentonite vertical cutoff wall backfill exposed to lead contamination

XL Fu, R Zhang, KR Reddy, YC Li, YL Yang, YJ Du - Engineering Geology, 2021 - Elsevier
This paper presents a laboratory experimental investigation on the membrane behavior and
diffusion properties of sand/sodium hexametaphosphate (SHMP)-amended bentonite …

Hydraulic performance of geosynthetic clay liners comprising anionic polymer–enhanced bentonites

A Norris, N Aghazamani, J Scalia… - Journal of Geotechnical …, 2022 - ascelibrary.org
The hydraulic performance of geosynthetic clay liners (GCLs) comprising anionic polymer–
enhanced bentonites (EBs), or EB-GCLs, based on permeation with 500 mM NaCl and 167 …

Investigating factors influencing polymer elution and the mechanism controlling the chemical compatibility of GCLs containing linear polymers

C Wireko, T Abichou - Geotextiles and Geomembranes, 2021 - Elsevier
A study was conducted to investigate (1) physicochemical factors that influence polymer
elution from GCLs containing a blend of bentonite and linear (water-soluble) polymer (LPB …

State-of-the-art report: GCL shear strength and its measurement–ten-year update

PJ Fox, TD Stark - Geosynthetics International, 2015 - icevirtuallibrary.com
This paper presents an invited update to our 2004 state-of-the-art report and provides a
comprehensive source of information on the shear strength and shear strength testing of …

Polymer-modified bentonites with low hydraulic conductivity and improved chemical compatibility as barriers for Cu2+ containment

C Jia-Kai, X Liang-Xiong, Y Yi-Xin, D Mulati, Z Shuai… - Acta Geotechnica, 2023 - Springer
Containment and remediation of copper mine contamination with high concentration of
heavy metals (Cu, Pb, Zn) and low pH (2–5) demand barriers with low hydraulic conductivity …