Peach, B., Petkovski, M. orcid.org/0000-0002-3788-0772, Blackburn, J. et al. (1 more author) (2018) The effect of ageing and drying on laser scabbling of concrete. Construction and Building Materials, 188. pp. 1035-1044. ISSN 0950-0618
Abstract
Laser scabbling of concrete is a process by which the surface layer of concrete is removed through the use of a high power (low power density) laser beam. In order to understand how the age and treatment of structures may affect the laser scabbling process, the aim of the research presented in this paper was to establish a relationship between laser interaction time, surface temperature and volume removal for cementitious materials of different ages and different degrees of saturation. The investigation focussed on (i) the effect of age on saturated specimens and (ii) the effect of prolonged drying. The results show that drying of specimens had the largest effect on scabbling. The effect of age on saturated specimens was small for PFA + OPC pastes, mortars and concretes, but significant for OPC pastes, where the volume of scabbling dramatically reduced with age.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2018 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: | Scabbling; Ageing; Concrete; Cement; Spatting; Moisture content; w/b ratio |
Dates: |
|
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: | 19 Nov 2018 12:44 |
Last Modified: | 25 Sep 2019 00:39 |
Published Version: | https://doi.org/10.1016/j.conbuildmat.2018.08.131 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.conbuildmat.2018.08.131 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:138694 |
Download
Filename: The_effect_of_age_on_laser_scabbling_final.pdf
Licence: CC-BY-NC-ND 4.0