Effect of moisture and concrete composition on the Torrent permeability measurement

Title: Effect of moisture and concrete composition on the Torrent permeability measurement
Author(s): M. Romer
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 279
Issue date: 2005-06-01
Publication year: 2005
Pages: 541 - 547
Total Pages: 7
Nb references: 13
Language: English

Abstract: The evolution of the gas permeability of concrete with age and the effect of defined moisture conditions were investigated.
Four different concrete mixtures were produced and stored in the laboratory at 35%, 70% and 90% rh, the air permeability of the covercrete was monitored with the Torrent method.
Under controlled conditions the Torrent method is sensitive to the concrete quality.
However when young concrete or concrete stored under intermediate to humid conditions is tested adverse effects lead to unexpected results.
The results of the nondestructive Torrent method are compared with data obtained with other methods and indicate significant influences of moisture under certain conditions.
The effects of moisture on the results measured with the Torrent method and possibilities to improve the method for the application on real structures are discussed.

Online publication: 2005-04-12
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14321