Expansions with different origins in a concrete dam with bridge over spillway.pdf (11.38 MB)
Expansions with different origins in a concrete dam with bridge over spillway
journal contributionposted on 2018-03-20, 12:04 authored by Ana Blanco-AlvarezAna Blanco-Alvarez, Sergio Pialarissi-CavalaroSergio Pialarissi-Cavalaro, Ignacio Segura, Luis Segura-Castillo, Antonio Aguado
Concrete dams with expansions from different origins are rare and scarcely documented in the literature, therefore their study gains special interest. This study presents the case of a 62-year-old concrete dam with signs of deterioration due to expansive reactions. Several tests performed on the samples extracted from the dam such as X-ray diffraction, scanning electron microscope with energy dispersive spectroscopy mode and petrography suggest that the expansions are due to a delayed ettringite formation and a subsequent alkali-silica reaction. Thermal and mechanical models developed in the study support this diagnosis.
The authors acknowledge the economic support provided by the Spanish Ministry of Science and Innovation – Spain through the project BIA2013-49106-C2-1-R and the collaboration project with Universidad de la Republica (Uruguay).
- Architecture, Building and Civil Engineering
Published inConstruction and Building Materials
Pages861 - 874
CitationBLANCO, A. ... et al, 2018. Expansions with different origins in a concrete dam with bridge over spillway. Construction and Building Materials, 163, pp.861-874.
- AM (Accepted Manuscript)
Publisher statementThis work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/
NotesThis paper was published in the journal Construction and Building Materials and the definitive published version is available at https://doi.org/10.1016/j.conbuildmat.2017.12.161.