Transport Properties and Durability of Concrete: Literature Review and Research Plan.
Transport Properties and Durability of Concrete:
Literature Review and Research Plan.
Bentz, D. P.; Clifton, J. R.; Ferraris, C. F.; Garboczi,
NISTIR 6395; 46 p. September 1999.
Available from: National Technical Information Service
(NTIS), Technology Administration, U.S. Department of
Commerce, Springfield, VA 22161.
1-800-553-6847 or 703-605-6000;
Order number: PB99-172397
concretes; transport properties; durability; literature
reviews; moisture content; pavement; permeability;
service life; sorptivity
The increased emphasis on life cycle cost analysis for
building projects requires that new attention be focused
on the service life and durability of concrete
structures. While concrete is typically specified based
on compressive strength and slump, it is well recognized
that durability is most influenced by the transport
properties of the concrete such as diffusivity,
permeability, and sorptivity. This report reviews the
state-of-the-art for measurement of transport properties
in the laboratory and field and discusses the linkages
between transport properties and models for various
deterioration processes of relevance to highway
concretes. Based on this review, a preliminary research
approach and testing guidelines are presented for
evaluating the durability of new and existing concretes
for pavements. A key feature of the overall approach
will be the development of a general model relating
concrete sorptivity to spalling damage for three common
degradation phenomena: sulfate attack, alkali-silica
reaction, and freeze/thaw scaling.