Peach, B., Petkovski, M. orcid.org/0000-0002-3788-0772, Blackburn, J. et al. (1 more author) (2016) Laser scabbling of mortars. Construction and Building Materials, 124. pp. 37-44. ISSN 0950-0618
Abstract
Laser scabbling of concrete is the process by which the surface layer of concrete may be removed through the use of a low power density laser beam. Previous research has suggested that the driving force responsible for laser scabbling is developed within the mortar. The aim of this investigation was to establish the key parameters that influence laser scabbling of mortars. The results show that the removal of free water from mortars prohibits scabbling, but resaturation allows mortar to scabble. A reduced permeability, either due to a reduction in the water/binder ratio or the use of 25% PFA replacement, enhances the scabbling. A higher fine aggregate content increases volume removal and fragment sizes during laser scabbling.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 Elsevier. This is an author produced version of a paper subsequently published in Construction and Building Materials. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) |
Keywords: | Mortar; Scabbling; Spalling; Moisture content; w/b ratio; Fine aggregate content |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 11 Aug 2016 15:46 |
Last Modified: | 27 Jan 2020 13:55 |
Published Version: | https://dx.doi.org/10.1016/j.conbuildmat.2016.07.0... |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.conbuildmat.2016.07.038 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:103329 |