The influence of temperature in a capillary imbibition salt weathering simulation test on Mokattam limestone

Authors

  • N. Aly Suez University - Instituto de Geociencias (CSIC, UCM)
  • M. Gomez–Heras Instituto de Geociencias (CSIC, UCM) - CEI Campus Moncloa (UPM, UCM, CSIC) - Universidad Politécnica de Madrid
  • A. Hamed Suez University
  • M. Álvarez de Buergo Instituto de Geociencias (CSIC, UCM)
  • F. Soliman Suez Canal University

DOI:

https://doi.org/10.3989/mc.2015.00514

Keywords:

Stone decay, Salt weathering, Limestone, Durability

Abstract


Limestone is one of the most frequent building stones used in monuments in Egypt from ancient Egyptian times and salt weathering is one of the main threats to these monuments. During this work, cylindrical limestone samples (2 cm diameter and approx. 4 cm length) from Mokattam group, one of the most frequent materials in historic Cairo, were subjected, in a purpose-made simulation chamber, to laboratory salt weathering tests with a 10% weight NaCl solution at different temperatures (20, 30, 40 °C). During each test, temperature was kept constant and salt solutions flowed continuously imbibing samples by capillary rise resembling the way they get into building stone in many real cases. Air temperature, relative humidity inside the simulation chamber and also samples weight were digitally monitored and recorded. Results show the influence of temperature and the ratio between imbibitions and evaporation on the dynamics of salt crystallization in the samples.

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Published

2015-03-30

How to Cite

Aly, N., Gomez–Heras, M., Hamed, A., Álvarez de Buergo, M., & Soliman, F. (2015). The influence of temperature in a capillary imbibition salt weathering simulation test on Mokattam limestone. Materiales De Construcción, 65(317), e044. https://doi.org/10.3989/mc.2015.00514

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Section

Research Articles