ASTM D3743-84(2000)
(Terminology)Standard Terminology Relating To Bridge Deck and Substructure Protection (Withdrawn 2004)
Standard Terminology Relating To Bridge Deck and Substructure Protection (Withdrawn 2004)
SCOPE
1.1 This standard defines terminology commonly used in the discussion of bridge deck protective systems and waterproofing membranes
WITHDRAWN RATIONALE
This standard defines terminology commonly used in the discussion of bridge deck protective systems and waterproofing membranes.
Formerly under the jurisdiction of Committee D04 on Road and Paving Materials, this terminology was withdrawn in June 2004. This terminology was withdrawn because the level of use and interest was either none or very minimal.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D 3743 – 84 (Reapproved 2000)
Standard Terminology Relating to
Bridge Deck and Substructure Protection
This standard is issued under the fixed designation D 3743; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope blisters—gas- or water vapor-filled bubbles or cavities in the
waterproofing membrane caused by entrapped air, the vola-
This standard defines terminology commonly used in the
tilization of liquids applied to the concrete, or the vaporiza-
discussion of bridge deck protective systems and waterproofing
tion of water on or in the concrete.
membranes.
cathodic protection—the control of corrosion by the applica-
2. Terminology tion of a cathodic current to the reinforcing steel by means of
impressed current or a sacrificial anode.
abrasive blast cleaning—the removal from a concrete surface
conductive bituminous overlay—a first course bituminous
of all laitance, oil, grease, curing compounds, or coatings by
overlay using aggregate or high-crystalline structure carbon,
the action of a high-velocity stream of abrasive in air or
or equivalent, which is capable of distributing impressed
water followed by a blast of air to provide a concrete surface
current from the anodes to all parts of the bridge deck
free of abrasive dust and other particles. The abrasive may
roadway surface.
be clean silica sand, mineral grit, steel shot, steel grit, or
conductive polymer mortar—a rigid material formulated by
mineral slag.
polymerization of a select resin system and conductive
anodes, impressed current—inactive materials such as high-
calcined petroleum coke which is capable of distributing
silicon cast iron and graphite. These anodes provide the
impressed anodic current. The material is used to fill cut
electrical connection to the conductive overlay, but require
slots, as strips or ribbons in grid-fashion on a bridge deck or
use of an outside source for protective energy, that is, an
structure, or applied as a thin overlay to substructure
impressed current. At the current densities recommended by
concrete members for stopping the corrosion of reinforcing
the manufacturers, these anodes are highly resistant to
steel.
electrolytic attack but deteriorate at known rates.
continuous spun bonded polypropylene mat— a sheet ma-
anodes, sacrificial—chemically active metals such as zinc,
terial, resembling paper or felt, made from polypropylene
aluminum, and magnesium which, when electrically con-
plastic fibers, used in the manufacture of preformed mem-
nected to the reinforcing bar, will provide the energy needed
brane sheet for waterproofing.
to cathodically protect the reinforcing bar. Sacrificial anodes
curing—the development of hardness, strength, or other de-
deteriorate in service at a rate proportional to the energy
sired properties by evaporation, polymerization, or chemical
needed to protect the reinforcing bar plus whatever may
and physical change in a material that is initially liquid or
deteriorate by local-action corrosion.
plastic in consistency.
bitumen, polymer-modified—a black or dark-colored cemen-
curing agent—anything such as heat, a catalyst, or a protective
titious, high-molecular weight hydrocarbon such as asphalt,
coating that assures, enhances, or accelerates curing.
tar, or pitch in which polymer has been dispersed to modify
half cell—a standard reference electrode used to measure the
the properties of the bitumen.
electrical potential between it and the reinforcing steel. Most
bitumen, rubberized—a special form of polymer-modified
commonly used on bridge decks is the saturated copper-
bitumen where an asphalt, tar, or pitch has been combined
copper sulfate half cell (CSE).
with natural or synthetic rubber to modify its properties.
impregnation—filling the void structure of hardened concrete
bleeders—holes or pipes through bridge deck
...
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