Probing pH levels in civil engineering materials

Cristian Vimer, Siukei Yu, Masoud Ghandehari

Research output: Contribution to journalArticle

Abstract

Optical spectroscopy is a viable approach for subsurface monitoring of pH levels in civil engineering materials. In this work, we describe a method by which optical fibers may be implemented as probes for the in situ measurement of pH levels. This paper describes the development of a nanoporous polymeric matrix, which hosts pH-sensitive chromoionophores. Details of how this pH indicator is strongly attached to the polymer chains through hydrogen bonds are described. Experiments are conducted in the laboratory in aqueous media for monitoring pH levels in highly alkaline and moderately acidic regions. Some detail on indicator immobilization, and signal reversibility are also reported.

Original languageEnglish (US)
Pages (from-to)51-57
Number of pages7
JournalJournal of Materials in Civil Engineering
Volume21
Issue number2
DOIs
StatePublished - 2009

Fingerprint

Civil engineering
Monitoring
Optical fibers
Hydrogen bonds
Polymers
Experiments
Optical spectroscopy

Keywords

  • Acids
  • Carbonation
  • Corrosion
  • Degradation
  • Material properties
  • pH

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Materials Science(all)
  • Mechanics of Materials

Cite this

Probing pH levels in civil engineering materials. / Vimer, Cristian; Yu, Siukei; Ghandehari, Masoud.

In: Journal of Materials in Civil Engineering, Vol. 21, No. 2, 2009, p. 51-57.

Research output: Contribution to journalArticle

Vimer, Cristian ; Yu, Siukei ; Ghandehari, Masoud. / Probing pH levels in civil engineering materials. In: Journal of Materials in Civil Engineering. 2009 ; Vol. 21, No. 2. pp. 51-57.
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