ASTM C1305-00

Standard Test Method for Crack Bridging Ability of Liquid-Applied Waterproofing Membrane

SCOPE
1.1 This test method covers a laboratory procedure for determining the ability of a waterproofing membrane to bridge a crack in the substrate.  
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.  
1.3 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.

General Information

• Status: Historical
• Publication Date: 09-Jun-2000
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: D08 - Roofing and Waterproofing
• Drafting Committee: D08.22 - Waterproofing and Dampproofing Systems

Relations

• Replaced By: ASTM C1305-05 - Standard Test Method for Crack Bridging Ability of Liquid-Applied Waterproofing Membrane
• Effective Date: 01-May-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C 1305 – 00
Standard Test Method for
Crack Bridging Ability of Liquid-Applied Waterproofing
Membrane
This standard is issued under the fixed designation C1305; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope (158°F), placing them in a test machine, and subjecting the
assembly to ten cycles of movement.
1.1 This test method covers a laboratory procedure for
determining the ability of a waterproofing membrane to bridge
5. Significance and Use
a crack in the substrate.
5.1 This test method is used to indicate a waterproofing
1.2 The values stated in SI units are to be regarded as the
membrane’s ability to maintain its integrity while bridging a
standard. The inch-pound units given in parentheses are for
preexisting crack in the substrate at low ambient temperatures,
information only.
when the membrane is least likely to be flexible.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
6. Comparison to Other Standards
responsibility of the user of this standard to establish appro-
6.1 Thecommitteewithjurisdictionoverthisstandardisnot
priate safety and health practices and determine the applica-
aware of any comparable standards published by other orga-
bility of regulatory limitations prior to use.
nizations.
1.4 There are no ISO standards similar or equivalent to this
ASTM standard.
7. Apparatus and Materials
7.1 Automatic Extension and Compression Machine, with
2. Referenced Documents
cold box capable of maintaining−26 6 1°C (−15 6 2°F).
2.1 ASTM Standards:
2 7.2 Circulating Hot-Air Oven.
C33 Specification for Concrete Aggregates
3 7.3 Portland Cement, high early strength conforming to
C150 Specification for Portland Cement
4 Specification C150, Type III.
C717 Terminology of Building Seals and Sealants
7.4 Fine Aggregate, conforming to Specification C33.
7.5 Aluminum Angles, 75 by 50 by 25 mm (3 by 2 by 1 in.),
3. Terminology
if needed.
3.1 Definitions—RefertoTerminologyC717fordefinitions
7.6 Epoxy Cement, or gun-grade construction mastic, if
of technical terms used in this test method. Some of these are
needed.
elastomeric, substrate, waterproofing, and compound.
7.7 Masking Tape.
4. Summary of Test Method 7.8 Molds, six, 50 by 25 by 25 mm (2 by 1 by 1 in.) inside
dimensions,or75by88by25mm(0.5by1.5by1in.)notches
4.1 This test method consists of casting five specimens of
in either side, as shown in Fig. 1, for casting mortar blocks.
membrane on mortar substrates containing a preexisting crack
and allowing them to age 14 days at standard conditions
8. Preparation of Substrates
followed by seven days in an air-circulating oven at 70°C
8.1 Mix 1 part by weight of Type III Portland cement with
2 parts by weight of fine aggregate and stir in approximately
This test method is under the jurisdiction of ASTM Committee C-24 on 0.7 part by weight of water to produce a uniform mixture.
BuildingSealsandSealantsandisthedirectresponsibilityofSubcommitteeC24.80
8.2 Pour the mixture into the mold and allow to cure one
on Building Deck Waterproofing Systems.
day at 100% relative humidity followed by six days in tap
Current edition approved June 10, 2000. Published August 2000. Originally
water, both at standard temperature.
published as C 1305–95. Last previous edition C 1305–95.
Annual Book of ASTM Standards, Vol 04.02.
3 NOTE 1—Prepare five sets of two blocks.
Annual Book of ASTM Standards, Vol 04.01.
Annual Book of ASTM Standards, Vol 04.07.
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C 1305
8.3 Cut or grind the test surfaces of the mortar blocks to 8.6 If required to fit the test assembly into the jaws of the
remove laitance and produce a level substrate, free of fins or testing machine, aluminum angles may be adhered to the sides
burrs. If a release coating is used on the mold, only the top of the substrates after the membrane has been applied.
surfaceofthemortarblocks,notexposedtothereleasecoating, 8.7 Other substrates may be used, and shall be prepared to
shall be used as the test surface. provide a clean, level test surface. Other prepara
...