0
  • DE
  • EN
  • FR
  • International Database and Gallery of Structures

Advertisement

Monitoring temperature and hydration by mortar sensors made of nanomodified Portland cement

Author(s): ORCID




Medium: journal article
Language(s): English
Published in: Materials and Structures, , n. 1, v. 57
DOI: 10.1617/s11527-023-02275-w
Abstract:

Mortar beams incorporating carbon nanofibers (CNFs), which were synthesized in situ on Portland cement particles, were used to produce nanomodified Portland cement sensors (SmartCem sensors). SmartCem sensors exhibited an electrical response comparable to a thermistor with a temperature coefficient of resistivity of − 0.0152/ °C. The highest temperature sensing was obtained for the SmartCem sensor, which contained ~ 0.271 wt.% of CNFs. The calculated temperature sensitivity was approximately 11.76% higher in comparison with the mortar beam containing only unmodified Portland cement. SmartCem sensors were used to monitor the cement hydration in large-scale self-compacting concrete beams. The measurements were conducted after casting for 7 days. Additionally, commercially available thermocouple and humidity sensors were used as references. The results showed that changes in electrical resistivity measured by the SmartCem sensor were well aligned with the ongoing hydration processes.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1617/s11527-023-02275-w.
  • About this
    data sheet
  • Reference-ID
    10749544
  • Published on:
    14/01/2024
  • Last updated on:
    14/01/2024
 
Structurae cooperates with
International Association for Bridge and Structural Engineering (IABSE)
e-mosty Magazine
e-BrIM Magazine