ASTM D5898-96
(Guide)Standard Guide for Standard Details for Adhered Sheet Waterproofing
Standard Guide for Standard Details for Adhered Sheet Waterproofing
SCOPE
1.1 This guide covers details for typical conditions encountered in adhered sheet waterproofing on below grade structures and plazas.
1.2 This guide does not cover liquid applied waterproofing.
General Information
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Standards Content (Sample)
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Designation: D 5898 – 96
Standard Guide for
Standard Details for Adhered Sheet Waterproofing
This standard is issued under the fixed designation D 5898; 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 3.3.3 EJ—expansion joint.
3.3.4 NR—not recommended.
1.1 This guide covers details for typical conditions encoun-
3.3.5 MTL—noncorrosive metal.
tered in adhered sheet waterproofing on below grade structures
and plazas.
4. Significance and Use
1.2 This guide does not cover liquid applied waterproofing.
4.1 Thisguideillustratesgeneraldetailsforbelowgradeand
2. Referenced Documents plaza waterproofing. It serves as a guide that will enable the
designer to prepare complete waterproofing details for each
2.1 ASTM Standards:
specific condition that occurs on a project.
D 1079 Terminology Relating to Roofing, Waterproofing
and Bituminous Materials
5. Drawings
3. Terminology 5.1 This guide is not all inclusive. The designer should
detail all typical and special conditions on the project, paying
3.1 Definitions—For definitions of terms used in this stan-
particular attention to transitions in plane and intersection of
dard, refer to Terminology D 1079.
different details. The applicator should provide shop drawings
3.2 Definitions of Terms Specific to This Standard:
of each condition to confirm field conditions and to verify his
3.2.1 adhered sheet waterproofing, n—a system consisting
understanding of the design intent.
of one or more plys of organic or glass fiber felts or fabrics
5.2 Waterproofing membranes and reinforcement are indi-
appliedinhotorcoldbitumensormodifiedbitumens,oroneor
cated on the figures as a single thick line, regardless of the
more plys of a manufactured sheet of modified bitumen that
number of plys.
may be reinforced or laminated with scrim or polyethylene, or
5.3 Protection layers have been omitted for clarity. See
a polymeric or vulcanized elastomeric membrane. The system
Section 6.
is applied directly to concrete or masonry surfaces below
grade.
6. Protection
3.2.2 elevated slab, n—a framed or suspended concrete slab
6.1 Protection materials are required over all waterproofing
over a habitable or useable space.
to prevent damage from backfill, reinforcing chairs, and
3.2.3 fillet, n—liquid applied modified bitumen or mastic
construction traffic, unless the membrane system incorporates
used at internal corners before membrane application to form a
an integral protection layer. Protection also is required where
transition of less than 90°.
membranes terminate above grade and may be exposed to
3.2.4 reinforcement, n—generally, one or more strips of
ultra-violet light.
membrane, felts, or fabrics, installed at corners and over
6.2 Materials for protection include: asphalt composition
construction joints.
boards, plastic drainage panels, low density expanded polysty-
3.3 Abbreviations:
rene boards, and extruded polystyrene insulation. Low density
3.3.1 LAM—liquid applied membrane.
expanded polystyrene boards and some types of plastic drain-
3.3.2 SS—stainless steel.
age panels are not suitable for protection on horizontal sur-
faces. Protection materials are loose-laid on horizontal mem-
This guide is under the jurisdiction of ASTM Committee D08 on Roofing, branes and attached to vertical membranes with compatible
Waterproofing, and Bituminous Materials and is the direct responsibility of Sub-
adhesives. They should be installed as soon as possible after
committee D08.22 on Waterproofing and Damproofing Systems.
the membrane, or each portion of it, is completed or water
Current edition approved Feb. 10, 1996. Published April 1996.
tested.
Annual Book of ASTM Standards, Vol 04.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 5898
7. Reinforcement should be designed to prevent displacement when subjected to
waterpressure.Wheretheyoccurinelevatedslabs,theyshould
7.1 Reinforcement is required for built-up and modified
be raised above the surface. Control joints are not detailed as
bitumenmembranesattransitions,suchasinternalandexternal
expansion joints but should be reinforced in all membrane
corners and at static concrete construction joints and cracks.
systems.
Reinforcement also is required where reinforcing bars, pipes,
and conduits penetrate the membrane. Separate reinforcement
10. Structural Items
generally is not required for polymeric and vulcanized elasto-
10.1 Water stops, keyways, and other structural elements
meric membranes.
that are frequently installed in construction and control joints
7.2 Reinforcement usually is installed before the membrane
are not indicated on the details.
but may be applied over it. Refer to the membrane manufac-
turer for details.
11. Mud Mats
7.3 The minimum reinforcement is one ply. Systems using a
11.1 Mud mats are cast on the subgrade to support water-
multiple ply membrane usually require two or more reinforce-
proofing. Protection boards and tamped sand beds may be
ment plys, whereas single ply modified bitumen systems
acceptable alternates with some manufacturers.
generally require one.
7.4 When additional plys are used as reinforcement they
12. Planters, Bench, and Equipment Supports
should extend at least 6 in. (150 mm) beyond the corner or
12.1 Waterproofing membranes on horizontal surfaces
penetration and each succeeding ply should extend 3 in. (75
should be carried under planters and supports without inter-
mm) beyond the previous ply.
ruption. Such items should be installed on the concrete
7.5 Where reinforcing bars penetrate waterproofing, such as
protection slab. Waterproofing of planters should be indepen-
at rock anchors and wall to slab transitions, they should be
dent of the slab waterproofing.
sealed with reinforcing plys finger cut around the bars or liquid
applied membrane or both.
13. Explanatory Notes
7.6 Some manufacturers require cementitious cants or a
13.1 Fig. 1—Standard details for adhered sheet waterproof-
liquid applied waterproofing or mastic fillet at reentrant angles,
ing.
chamfered external corners and other special conditions to be
13.2 Fig. 2—This detail is applicable to tunnels and condi-
implemented during construction. These should be indicated
tions where the width of excavations is limited.Alternately, the
on project details.
mud mat may be omitted and waterproofing applied to the top
7.7 Details should recognize the normal sequencing of
of a structural slab and turned down to the toe. Then,
construction. Foundation walls may be cast before or after
waterproofing is covered with a cementitious wearing course.
slabs on grade. Structural slabs are cast after walls. Water-
13.3 Fig. 3—Slab with mud mat.
proofing of individual elements frequently follows this se-
13.4 Fig. 4—Footing with mud mat.
quence, for example, walls are waterproofed before the struc-
13.5 Fig. 5—This detail is applicable to conditions where
tural slab is cast. The resultant cold joints may be dynamic.
there is no hydrostatic head below the slab.
13.6 Fig. 6, Fig. 7, and Fig. 8—Where internal and external
8. Penetrations
vertical corners meet horizontal surfaces, isometric drawings
8.1 Flashing at penetrations should accommodate differen-
prepared by the designer or applicator are required to indicate
tial movement between the slab and the pipe, conduit, or drain.
the assembly of the overlapping plys.
For built-up and modified bitumen membranes, lead reinforc-
13.7 Fig. 9 and Fig. 10—Waterproofing should not be
ing is recommended where pipes or drains are installed in
terminated below grade. Even when a reglet is used to
sleeves but is optional where they are cast into the wall or slab.
terminate the sheet, or a cap flashing is installed in a reglet,
Cast iron drains, cast into the slab with flanges flush with or
water can migrate behind the sheet through cracks above the
slightly below the slab, are preferred. Additional plys of
reglet. Because most of the adhered she
...
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