A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of multiple-ion interaction on the swelling pressure of compacted Gaomiaozi (GMZ) bentonite
https://orcid.org/0000-0002-8280-4832
Abstract Hyperalkaline fluids produced by cementitious materials continue to penetrate into the barrier system of high-level radioactive waste repositories. The swelling pressure of compacted bentonite can be seriously deteriorated by multi-ion interaction. In this study, the swelling pressure tests were performed on compacted Gaomiaozi bentonite with a dry density of 1.70 g.$ cm^{−3} $ to investigate multi-ion interaction on swelling pressure. Results show that $ K^{+} $ cations contained in the compound hyperalkaline test solution (CHTS) can cause the swelling pressure to present a continuously decreasing tendency through potassium exchange effect. The effect of the concentration of compound cations on the swelling pressure of compacted bentonite depends on the compound cation interaction, and a positive correlation exists between the swelling pressure and the concentration of compound cations. The effect of $ OH^{−} $ anions on the swelling pressure of compacted bentonite is closely related to the compound cations contained in CHTS, which presents a multi-ion interaction. The investigation of the effect of multi-ion interaction in CHTS on the swelling pressure can establish a baseline for later comparison with hyperalkaline pore water obtained from field conditions.
Effect of multiple-ion interaction on the swelling pressure of compacted Gaomiaozi (GMZ) bentonite
https://orcid.org/0000-0002-8280-4832
Abstract Hyperalkaline fluids produced by cementitious materials continue to penetrate into the barrier system of high-level radioactive waste repositories. The swelling pressure of compacted bentonite can be seriously deteriorated by multi-ion interaction. In this study, the swelling pressure tests were performed on compacted Gaomiaozi bentonite with a dry density of 1.70 g.$ cm^{−3} $ to investigate multi-ion interaction on swelling pressure. Results show that $ K^{+} $ cations contained in the compound hyperalkaline test solution (CHTS) can cause the swelling pressure to present a continuously decreasing tendency through potassium exchange effect. The effect of the concentration of compound cations on the swelling pressure of compacted bentonite depends on the compound cation interaction, and a positive correlation exists between the swelling pressure and the concentration of compound cations. The effect of $ OH^{−} $ anions on the swelling pressure of compacted bentonite is closely related to the compound cations contained in CHTS, which presents a multi-ion interaction. The investigation of the effect of multi-ion interaction in CHTS on the swelling pressure can establish a baseline for later comparison with hyperalkaline pore water obtained from field conditions.
Effect of multiple-ion interaction on the swelling pressure of compacted Gaomiaozi (GMZ) bentonite
https://orcid.org/0000-0002-8280-4832
Abstract Hyperalkaline fluids produced by cementitious materials continue to penetrate into the barrier system of high-level radioactive waste repositories. The swelling pressure of compacted bentonite can be seriously deteriorated by multi-ion interaction. In this study, the swelling pressure tests were performed on compacted Gaomiaozi bentonite with a dry density of 1.70 g.$ cm^{−3} $ to investigate multi-ion interaction on swelling pressure. Results show that $ K^{+} $ cations contained in the compound hyperalkaline test solution (CHTS) can cause the swelling pressure to present a continuously decreasing tendency through potassium exchange effect. The effect of the concentration of compound cations on the swelling pressure of compacted bentonite depends on the compound cation interaction, and a positive correlation exists between the swelling pressure and the concentration of compound cations. The effect of $ OH^{−} $ anions on the swelling pressure of compacted bentonite is closely related to the compound cations contained in CHTS, which presents a multi-ion interaction. The investigation of the effect of multi-ion interaction in CHTS on the swelling pressure can establish a baseline for later comparison with hyperalkaline pore water obtained from field conditions.
Effect of multiple-ion interaction on the swelling pressure of compacted Gaomiaozi (GMZ) bentonite
Liu, Li-Na (author) / Chen, Yong-Gui (author) / Gao, Wen-Sheng (author)
2023
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
Swelling pressure characteristics of compacted Chinese Gaomiaozi bentonite GMZ01
| British Library Online Contents | 2014
Advances on Buffer/Backfill Properties of Heavily Compacted Gaomiaozi Bentonite
| Springer Verlag | 2010