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An experimental study on the effect of chloride penetration on moisture diffusion in concrete



Title: An experimental study on the effect of chloride penetration on moisture diffusion in concrete
Author(s): A. Ababneh, Y. Xi
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 35
Issue: 254
Issue date: 2002-12-01
Publication year: 2002
Pages: 659 - 663
Total Pages: 5
Nb references: 9
Language: English


Abstract: Moisture is decisive for a large number of binding and transport processes in high performance concrete affecting the durability,shrinkage and performance in various environments.
An experimental study on the moisture transport properties of 20 concrete mixes was made during seven years,with type of binder,additives and waterbinder ratio as parameters.
An upside-down glass cup method was used to obtain the steady-state flow through concrete discs.
The moisture diffusion coefficient decreases with a lower water-binder ratio,increasing amount of silica fume,especially when combined with fly ash and it continues to decrease also after four years for w/B lower than 0.
40.
The moisture diffusion coefficient is much less moisture dependent for HPC than for normal concrete, which means that steady-state moisture profiles through HPC structures will be almost linear.
Long-term moisture profiles in submerged HPC will be affected by self-desiccation for a very long time because of the extremely small moisture flow.


Online publication: 2002-10-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13936


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