<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In the planned Swedish repository for spent nuclear fuel, plugs are designed to close the deposition tunnels. The outer part of these plugs consists of a concrete dome made with self-compacting-concrete, designed to have low pH to reduce negative effects on the bentonite clay buffer. A full-scale test has been performed to evaluate the performance of the plug, to test the installation and to verify underlying design assumptions. In this paper, the behaviour of the concrete dome is evaluated based on measurements, from casting the concrete until it was subjected to 4 MPa hydrostatic water pressure.</p></abstract>

In the planned Swedish repository for spent nuclear fuel, plugs are designed to close the deposition tunnels. The outer part of these plugs consists of a concrete dome made with self-compacting-concrete, designed to have low pH to reduce negative effects on the bentonite clay buffer. A full-scale test has been performed to evaluate the performance of the plug, to test the installation and to verify underlying design assumptions. In this paper, the behaviour of the concrete dome is evaluated based on measurements, from casting the concrete until it was subjected to 4 MPa hydrostatic water pressure.

Full-scale Test of an Unreinforced Concrete Dome Plug for the Spent Nuclear Fuel Repository

KTH Royal Institute of Technology, Division of Concrete Structures

Nordic Concrete Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In the planned Swedish repository for spent nuclear fuel, plugs are designed to close the deposition tunnels. The outer part of these plugs consists of a...

Full-scale Test of an Unreinforced Concrete Dome Plug for the Spent Nuclear Fuel Repository

Published Online: Dec 01, 2018

Page range: 55 - 75

Received: Mar 18, 2018

Accepted: May 15, 2018

DOI: https://doi.org/10.2478/ncr-2018-0004

Keywords
Nuclear, full-scale testing, concrete plug, shrinkage, cooling

© 2018 Richard Malm, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Full-scale Test of an Unreinforced Concrete Dome Plug for the Spent Nuclear Fuel Repository

Published Online: Dec 01, 2018

Page range: 55 - 75

Received: Mar 18, 2018

Accepted: May 15, 2018

DOI: https://doi.org/10.2478/ncr-2018-0004

KeywordsNuclear, full-scale testing, concrete plug, shrinkage, cooling

© 2018 Richard Malm, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Nuclear, full-scale testing, concrete plug, shrinkage, cooling