ASTM D4071-84(2000)
(Practice)Standard Practice for Use of Portland Cement Concrete Bridge Deck Water Barrier Membrane Systems
Standard Practice for Use of Portland Cement Concrete Bridge Deck Water Barrier Membrane Systems
SCOPE
1.1 This practice covers liquid applied, preformed, or built-up water barrier membrane systems and their application; overlaid with bituminous concrete wearing courses, for use in the protection of bridge decks from deleterious effects of deicing salts. Material use and specifications should be adapted to conform to job and user requirements for new construction or existing structures. This practice is written as a guide for the use of bridge deck water barrier systems only.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 10.
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Designation:D4071–84 (Reapproved 2000)
Standard Practice for
Use of Portland Cement Concrete Bridge Deck Water Barrier
Membrane Systems
This standard is issued under the fixed designation D 4071; 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 elements during the design stage of new or existing bridges to
be treated and covered with a bituminous concrete wearing
1.1 This practice covers liquid applied, preformed, or
course.
built-up water barrier membrane systems and their application;
5.2 New bridge deck designs must include provision for
overlaid with bituminous concrete wearing courses, for use in
dead loads including future systems.
the protection of bridge decks from deleterious effects of
5.3 The deck surface finish should be specified to allow
deicing salts. Material use and specifications should be adapted
proper use of the intended membrane system. Manufacturers’
to conform to job and user requirements for new construction
recommendations for surface finish should be reviewed for
or existing structures. This practice is written as a guide for the
guidance on finishing freshly placed concrete or for repair of
use of bridge deck water barrier systems only.
existing deck surfaces.
1.2 This standard does not purport to address all of the
5.4 Surface drains should be designed to allow positive
safety concerns, if any, associated with its use. It is the
drainage to minimize the penetration of water through the
responsibility of the user of this standard to establish appro-
bituminous wearing course.
priate safety and health practices and determine the applica-
5.5 Joint systems should be designed to provide adequate
bility of regulatory limitations prior to use. Specific precau-
termination points for the membrane. Membranes should not
tionary statements are given in Section 10.
beplacedoverexpansionjoints.Damsorexpansionassemblies
2. Referenced Documents
should be provided to the height of the bituminous wearing
course.
2.1 ASTM Standards:
5.6 Curbs or parapets, or both, should be designed for
D 3743 Terminology Relating to Bridge Deck and Sub-
functional terminations. Manufacturers of membrane systems
structure Protection
should be consulted for recommended termination details. If
3. Terminology
roughsurfaces(suchasgranitecurbs)arespecified,atreatment
should be specified to provide the surface smoothness required
3.1 For definitions of terms used in this practice, refer to
for the proper use of the membrane. Treatment of rough curbs
Terminology D 3743.
may be achieved with a leveling surface treatment with epoxy
4. Significance and Use
mortar or other suitable materials.
5.7 Decks should include weepholes to provide drainage for
4.1 This practice provides a guide for factors to be consid-
water which penetrates through the bituminous wearing course
ered prior to waterproofing bridge decks with water barrier
to the membrane level.
membrane systems. It will provide guidance for specification
5.8 For bridges with significant grades (usually over 4 %) or
of materials, application of membrane systems, and placement
those which are subject to traffic acceleration, deceleration, or
of bituminous wearing courses. It may be used as a guide for
radial stresses (such as on ramps), the use of membrane
new construction or for rehabilitation of existing structures.
systems may cause overlay movement. Membrane manufac-
5. Bridge Design and Specification Consideration
turers should be consulted for limitations on membrane use.
5.9 Service life and maintenance requirements should be
5.1 Proper use of water barrier membranes with bituminous
considered when designing the water barrier and wearing
concrete wearing courses requires consideration of certain
surface.
5.10 Specified materials should be chemically and physi-
This practice is under the jurisdiction of ASTM Committee D04 on Road and
cally compatible with specific emphasis on proper adhesion of
Paving Materials and is the direct responsibility of Subcommittee D04.32 on
the membrane and the bituminous wearing course.
Bridges and Structures.
Current edition approved July 18, 1984. Published September 1984.
Annual Book of ASTM Standards, Vol 04.03.
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D4071–84 (2000)
6. Bridge Construction required service life. Chemical and physical compatibility of
all components including tack coats, (if required) should be
6.1 A preconstruction conference should be held to assure
determined.
that the contractor is aware of all construction requirements
8.2 The bituminous wearing course thickness, aggregate
which affect the membrane system.
size and gradation, asphalt type and quantity, should be
6.2 Inspectors should ensure that surface finish of the
determined by the service life requirements. It should conform
concrete deck is acceptable for the use of the intended
to minimum thickness requirements recommended by the
membrane system, usually an even float finish.
membrane manufacturer.
6.3 Concrete decks or other components should be cured
8.3 Placement of the bituminous wearing course should be
and dried for the required minimum time before installation of
completed within the time period specified. Generally, mem-
the membrane. Limitations on curing methods or curing
branes should be exposed for the shortest possible time. Some
materials should be observed. In most cases, the use of
liquid applied systems may require a minimum time for curing
membrane curing compounds containing wax or oil should be
of the membrane.
prohibited.
8.4 Weather limitations, dry surfaces, and ambient tempera-
6.4 Care should be exercised to avoid the use of materials
ture requirements should be observed.
which are che
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