ASTM C957-04

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Designation: C 957 – 04
Standard Specification for
High-Solids Content, Cold Liquid-Applied Elastomeric
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Waterproofing Membrane With Integral Wearing Surface
This standard is issued under the fixed designation C 957; 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 2. Referenced Documents
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1.1 This specification describes the required properties and 2.1 ASTM Standards:
test methods for a cold liquid-applied elastomeric membrane C 501 Test Method for Relative Resistance to Wear of
for waterproofing building decks not subject to hydrostatic Unglazed Ceramic Tile by the Taber Abraser
pressure. The specification applies only to a membrane system C 717 Terminology of Building Seals and Sealants
thathasanintegralwearingsurface.Thisspecificationdoesnot C 719 Test Method for Adhesion and Cohesion of Elasto-
include specific requirements for skid resistance or fire retar- meric Joint Sealants Under Cyclic Movement (Hockman
dance, although both may be important in specific uses. Cycle)
1.2 The type of membrane system described in this speci- C 794 Test Method for Adhesion-in-Peel of Elastomeric
fication is used for pedestrian and vehicular traffic and in Joint Sealants
high-abrasion applications. The membrane may be single- or C 836 Specification for High Solids Content, Cold Liquid-
multi-component, and may consist of one or more coats (for Applied Elastomeric Waterproofing Membrane for Use
example base coat, top coat, etc.). The coat(s) may be built to with Separate Wearing Course
the desired thickness in one or more applications. One coat D 412 Test Methods for Vulcanized Rubber and Thermo-
(base coat) provides the primary waterproofing function and plastic Rubbers and Thermoplastic Elastomers—Tension
normally comprises the major amount of organic material in D 471 Test Method for Rubber Property—Effect of Liquids
the membrane. The function of the top coat(s) is to resist wear D 609 Practice for Preparation of Cold-Rolled Steel Panels
and weather. Aggregate may be used as a component of the for Testing Paint, Varnish, Conversion Coatings, and
membrane system, as all or part of a course, to increase wear Related Coating Products
and skid resistance. D 822 Practice for Conducting Tests on Paint and Related
1.3 Test methods in this specification require a minimum Coatings and Materials Using Filtered Open-Flame
0.5-mm (0.020-in.) base coat dry film thickness. Actual thick- Carbon-Arc Exposure Apparatus
ness required for a particular application and the use of D 1133 Test Method for Kauri-Butanol Value of Hydrocar-
aggregate in topcoats shall be established by the membrane bon Solvents
manufacturer. D 2370 Test Method for Tensile Properties of Organic
1.4 The values stated in SI units are to be regarded as the Coatings
standard. The values given in parentheses are provided for G 151 Practice for Exposing Nonmetallic Materials in Ac-
information purposes only. celerated Test Devices that Use Laboratory Light Sources
1.5 The following safety hazards caveat pertains only to the G 152 PracticeforOperatingOpenFlameCarbonArcLight
test method portion, Section 5, of this specification: This Apparatus for Exposure of Nonmetallic Materials
standard does not purport to address all of the safety problems, G 153 Practice for Operating Enclosed Carbon Arc Light
if any, associated with its use. It is the responsibility of the user Apparatus for Exposure of Nonmetallic Materials
of this standard to establish appropriate safety and health 2.2 U.S. Department of Commerce Standard:
practices and determine the applicability of regulatory limita-
tions prior to use.
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This specification is under the jurisdiction of ASTM Committee C24 on
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Building Seals and Sealants and is the direct responsibility of Subcommittee C24.80 For referenced ASTM standards, visit the ASTM website, www.astm.org, or
on Building Deck Waterproofing Systems. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
CurrenteditionapprovedMay1,2004.PublishedJuly2004.Originallyapproved Standards volume information, refer to the standard’s Document Summary page on
in 1981. Last previous edition approved in 1998 as C 957 – 93(1998). the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C957–04
Product Standard PS-1, Construction and Industrial Ply- 5. Test Methods
3
wood
5.1 Standard Conditions—Standard conditions for all tests
shall be 23 6 2°C (70 to 77°F) and 50 6 5 % relative
3. Terminology
humidity:
3.1 Definit
...