Assessing hydration disturbances from concrete aggregates with radiation shielding properties by isothermal calorimetry
(2017) In Physical Review Accelerators and Beams 20(4).- Abstract
Spallation sources create a large amount of neutrons with energies up to the GeV range. To shield for these neutrons, steel and concrete are important materials. By adding different aggregates to normal concrete, one can improve the shielding effect of the concrete. Some of these aggregates can influence the rate of hydration (reaction) of the cement or even completely inhibit the hydration. It is thus good practice to start the investigation of new shielding concretes by assessing the rate of cement hydration in the presence of new aggregates. This is preferably made with isothermal (heat conduction) calorimetry. In this paper we describe such tests made with a large number of different potential aggregates for a shielding concrete. We... (More)
Spallation sources create a large amount of neutrons with energies up to the GeV range. To shield for these neutrons, steel and concrete are important materials. By adding different aggregates to normal concrete, one can improve the shielding effect of the concrete. Some of these aggregates can influence the rate of hydration (reaction) of the cement or even completely inhibit the hydration. It is thus good practice to start the investigation of new shielding concretes by assessing the rate of cement hydration in the presence of new aggregates. This is preferably made with isothermal (heat conduction) calorimetry. In this paper we describe such tests made with a large number of different potential aggregates for a shielding concrete. We found a full range of influence on the hydration, from no influence to severely disturbed. In some cases smaller particles gave more disturbance.
(Less)
- author
- Wadsö, Lars LU ; Cooper-Jensen, Carsten P. LU and Bentley, Phillip M.
- organization
- publishing date
- 2017-04-24
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Accelerators and Beams
- volume
- 20
- issue
- 4
- article number
- 043502
- publisher
- American Physical Society
- external identifiers
-
- wos:000400244900003
- scopus:85025130594
- ISSN
- 2469-9888
- DOI
- 10.1103/PhysRevAccelBeams.20.043502
- language
- English
- LU publication?
- yes
- id
- bad3be7b-60af-429f-b1ed-558a8e458ec0
- date added to LUP
- 2017-07-31 12:56:42
- date last changed
- 2024-07-09 01:00:31
@article{bad3be7b-60af-429f-b1ed-558a8e458ec0,
abstract = {{<p>Spallation sources create a large amount of neutrons with energies up to the GeV range. To shield for these neutrons, steel and concrete are important materials. By adding different aggregates to normal concrete, one can improve the shielding effect of the concrete. Some of these aggregates can influence the rate of hydration (reaction) of the cement or even completely inhibit the hydration. It is thus good practice to start the investigation of new shielding concretes by assessing the rate of cement hydration in the presence of new aggregates. This is preferably made with isothermal (heat conduction) calorimetry. In this paper we describe such tests made with a large number of different potential aggregates for a shielding concrete. We found a full range of influence on the hydration, from no influence to severely disturbed. In some cases smaller particles gave more disturbance.</p>}},
author = {{Wadsö, Lars and Cooper-Jensen, Carsten P. and Bentley, Phillip M.}},
issn = {{2469-9888}},
language = {{eng}},
month = {{04}},
number = {{4}},
publisher = {{American Physical Society}},
series = {{Physical Review Accelerators and Beams}},
title = {{Assessing hydration disturbances from concrete aggregates with radiation shielding properties by isothermal calorimetry}},
url = {{http://dx.doi.org/10.1103/PhysRevAccelBeams.20.043502}},
doi = {{10.1103/PhysRevAccelBeams.20.043502}},
volume = {{20}},
year = {{2017}},
}