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

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journal contribution
posted on 20.03.2018, 12:04 by Ana Blanco-Alvarez, Sergio 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.

Funding

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).

History

School

  • Architecture, Building and Civil Engineering

Published in

Construction and Building Materials

Volume

163

Pages

861 - 874

Citation

BLANCO, A. ... et al, 2018. Expansions with different origins in a concrete dam with bridge over spillway. Construction and Building Materials, 163, pp.861-874.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This 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/

Publication date

2018

Notes

This 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.

ISSN

0950-0618

Language

en

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