A vacuum-air permeability test for in-situ assessment of cover concrete

Peter A. Claisse, Eshmaiel Ganjian, T. Adham

Research output: Contribution to journalArticle

11 Citations (Scopus)
40 Downloads (Pure)

Abstract

The transport properties of fluids in the cover layer are the main indicator of the durability of reinforced concrete structures. Many laboratory tests exist for measuring these properties. However, there are relatively few tests that can be used on site. In this paper, the development of a new nondestructive rapid test capable of measuring the air permeability of in situ concrete is described. The new method measures the movement of gas between different holes drilled into the concrete and gives results for the permeability of the concrete and for the volume of concrete that has been tested. A pressure measuring method was developed to measure the pressure inside the concrete by using a piezoresistive pressure transducer and a data logger. Four different techniques were investigated and one preparation technique is recommended for in situ use.
Original languageEnglish
Pages (from-to)47-53
JournalCement and Concrete Research
Volume33
Issue number1
DOIs
Publication statusPublished - 2003

Fingerprint

Air permeability
Vacuum
Concretes
Pressure transducers
Concrete construction
Transport properties
Reinforced concrete
Durability
Gases
Fluids

Keywords

  • Degradation
  • Durability
  • Long-term performance
  • Permeability
  • Transport properties

Cite this

A vacuum-air permeability test for in-situ assessment of cover concrete. / Claisse, Peter A.; Ganjian, Eshmaiel; Adham, T.

In: Cement and Concrete Research, Vol. 33, No. 1, 2003, p. 47-53.

Research output: Contribution to journalArticle

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