Evaluación del estado de elementos estructurales del Mercado de LegazpiAtaque por sulfatos al hormigón y corrosión de las armaduras

  1. Chinchón-Payá, Servando 1
  2. Torres, Julio 1
  3. Rebolledo, Nuria 1
  4. Sánchez, Javier 1
  1. 1 Instituto de Ciencias de la Construcción Eduardo Torroja, España
Journal:
Informes de la construcción

ISSN: 0020-0883

Year of publication: 2021

Volume: 73

Issue: 561

Type: Article

DOI: 10.3989/IC.76737 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Informes de la construcción

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Abstract

The work describes the methodology used to study the concrete of pillars, supports and foundations of several zones of the Mercado de Legazpi in Madrid (Spain). The soils where the latter are buried have also been analyzed. A visual inspection together with an Ultrasonic characterization has allowed the selection of samples for subsequent laboratory analysis by X-Ray Diffraction and Scanning Electron Microscopy, as well as quantification of chlorides and sulphates. Corrosion of reinforcements have been found in specific areas, which are due both to the previous use of the structure and its aging. There is also a significant amount of sulfates in the soil, of anthropogenic origin, which would explain the formation of sulphate attack products in the foundations. However, this attack does not seem to be a significant decrease in the integrity of the structure.

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