Rapid Determination of the Chloride Permeability of Concrete

Whiting, David

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Rapid Determination of the Chloride Permeability of Concrete

1981-08-01
By Whiting, David

File Language:

English

Details

Creators:

Whiting, David
Corporate Creators:

Construction Technology Laboratories (Portland Cement Association)
Contributors:

Mitchell, Terry M.
Corporate Contributors:

United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA-RD-81-119
Resource Type:

Tech Report
Geographical Coverage:

United States
Contracting Officer:

Mitchell, Terry M
Corporate Publisher:

United States. Department of Transportation. Federal Highway Administration
Abstract:

Techniques have been developed for determination of the permeability of a variety of concretes to chloride ions in a relatively rapid period of time. The most promising method involves application of d.c. voltage in the range of 60.0-80.0 volts for 6-hours to either a section of a reinforced concrete bridge deck or a core taken from a concrete structure. Both variations involve conditioning of the specimen prior to test so as to eliminate test anomalies caused by low sample moisture contents. Core specimens can be tested at the rate of one specimen per day with a total of 2 days needed for a complete test including conditioning. The field apparatus is capable of conducting four tests within one working week on a given bridge deck. Results have been shown to yield reasonably good correlation with FHWA 90-day ponding data on companion specimens. Concretes can be ranked according to high, moderate, low, or very low chloride permeability. Further work is needed in order to make the test more applicable to field testing of bridge deck overlays.
Format:

PDF
Funding:

DOT-FH-11-9305
Download URL:

https://rosap.ntl.bts.gov/view/dot/68474/dot_68474_DS1.pdf
File Type:

[PDF - 3.17 MB]
Collection(s):

Federal Highway Administration
Main Document Checksum:

urn:sha-512:4c442a933b2248c86e2001aa05785e51f63ca3d314e1ebde15abb90b88bc88ad11aaf27fca69115630a04f389ecfac7b564d87b676494c2985411eb14d6f7838

File Language:

English

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