Expression of Concern: Development of innovative alkali activated paste reinforced with polyethylene fibers for concrete crack repair

After this article [1] was published, the PLOS One Editors identified concerns about authorship. In light of these concerns, the PLOS One Editors issue this Expression of Concern. Readers are advised to interpret the article [1] with caution. Reference Citation: The PLOS One Editors (2026) Expression of Concern: Development of innovative alkali activated paste reinforced with polyethylene fibers for concrete crack repair. PLoS One 21(5): e0350239. https://doi.org/10.1371/journal.pone.0350239 Published: May 27, 2026 Copyright: © 2026 The PLOS One Editors. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.