Comparative study of HTO diffusion on individual and coupled systems of compacted bentonite and fresh ordinary Portland cement paste

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F18%3AN0000007" target="_blank" >RIV/46356088:_____/18:N0000007 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21340/18:00322634

Result on the web

<a href="http://dx.doi.org/10.1016/j.apgeochem.2018.08.006" target="_blank" >http://dx.doi.org/10.1016/j.apgeochem.2018.08.006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apgeochem.2018.08.006" target="_blank" >10.1016/j.apgeochem.2018.08.006</a>

Result language

angličtina

Original language name

Comparative study of HTO diffusion on individual and coupled systems of compacted bentonite and fresh ordinary Portland cement paste

Original language description

The radionuclide transport on the interface of compacted bentonite and cementitious materials has been rarely investigated. The goal of our project is to understand how processes at the interface of bentonite and cementitious materials affect the transport properties of bentonite. The paper describes methodology and evaluation procedure applied on HTO through-diffusion experiments on compacted bentonite/fresh hardened cement paste interface (coupled system). Under the same experimental conditions, HTO through-diffusion experiments were performed on individual materials and compared to experiments in the coupled system. To compare these two types of experiments, samples were saturated separately and coupled before the start of the through-diffusion experiments. An original method of modelling and evaluation of through-diffusion experiments performed in coupled system was applied. The effective diffusion coefficients of HTO in the compacted bentonite in both experimental arrangements, individual and coupled, were found to be in a very good agreement. Based on these finding, the prepared procedure of evaluation of through-diffusion experiments on the coupled system of two porous materials can be considered applicable on further planned studies of bentonite interfaces. A less good agreement, but still satisfactory, was obtained for the fresh hardened cement paste.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20701 - Environmental and geological engineering, geotechnics

Project

—

Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Geochemistry

ISSN

0883-2927

e-ISSN

—

Volume of the periodical

97

Issue of the periodical within the volume

October

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

102-108

UT code for WoS article

000446455900010

EID of the result in the Scopus database

2-s2.0-85052130584