Wang, Y, Yang, K orcid.org/0000-0002-4223-2710, Long, A et al. (7 more authors) (2018) Effectiveness of preconditioning regimes for assessing water permeability of high performance concrete. Cement and Concrete Composites, 94. pp. 126-135. ISSN 0958-9465
Abstract
Saturating high performance concrete (HPC) on site for assessing water permeability is a challenge. This paper reports a testing programme established to assess the reliability and efficiency of two field saturation approaches, viz. vacuum saturation and ponding. The water permeability test results after applying the vacuum saturation and ponding were compared with that after incremental immersion. It is found that ponding was unable to remove the influence of moisture, while vacuum saturation can achieve this for wet concretes. Although the influence of moisture can be removed for different HPCs with high initial moisture contents by using the vacuum saturation method, it is not effective when the initial moisture content is low. The results obtained from numerical simulation model and the electrical resistance measurements after incremental immersion suggested that the water permeability of HPCs can be accurately determined if the surface region (140 mm width and 25 mm depth) is fully saturated.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2018, Elsevier Ltd. All rights reserved. This is an author produced version of a paper published in Cement and Concrete Composites. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | in situ water permeability test; influence of moisture; high performance concrete; ponding saturation regime; vacuum saturation regime |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) > Institute for Resilient Infrastructure (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 10 Sep 2018 16:01 |
Last Modified: | 29 Aug 2019 00:43 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.cemconcomp.2018.08.018 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135447 |
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