ASTM C1016-02(2008)
(Test Method)Standard Test Method for Determination of Water Absorption of Sealant Backing
(Joint Filler) Material
Standard Test Method for Determination of Water Absorption of Sealant Backing<br> (Joint Filler) Material
SIGNIFICANCE AND USE
This test method determines the amount of water absorbed by a backing material. Water absorption by the backing may affect sealant performance.
This test method is also useful when designating proper storage of back up material and in determining appropriate precautions when using backing materials.
The specifier, using this test method, can exercise judgment in the selection of backing materials based on water absorption characteristics.
SCOPE
1.1 This test method covers a laboratory procedure for determining the water absorption characteristics of sealant backing and joint filler materials, hereinafter referred to as backing.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are for information only.
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other ASTM committees or other organizations.
1.4 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.
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Designation:C1016–02 (Reapproved 2008)
Standard Test Method for
Determination of Water Absorption of Sealant Backing
(Joint Filler) Material
This standard is issued under the fixed designation C1016; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Test Method
1.1 This test method covers a laboratory procedure for 4.1 The mass of three measured specimens of backing is
determining the water absorption characteristics of sealant determined. The specimens are then placed in room tempera-
backing and joint filler materials, hereinafter referred to as turewaterfor24hafterwhichthespecimensareremovedfrom
backing. the water and their mass measured. The change in mass is
1.2 The values stated in SI units are to be regarded as the calculated, and the result is expressed as a change in mass per
standard. The inch-pound units in parentheses are for informa- unit of volume.
tion only. 4.2 Procedure A measures the maximum amount of water
1.3 Thecommitteewithjurisdictionoverthisstandardisnot that can enter the backing. Procedure B measures the amount
aware of any comparable standards published by other ASTM of water that can enter the backing with the backing cut ends
committees or other organizations. sealed.
1.4 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 5.1 This test method determines the amount of water ab-
sorbed by a backing material. Water absorption by the backing
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. may affect sealant performance.
5.2 This test method is also useful when designating proper
2. Referenced Documents
storage of back up material and in determining appropriate
2.1 ASTM Standards: precautions when using backing materials.
C717 Terminology of Building Seals and Sealants 5.3 The specifier, using this test method, can exercise
judgment in the selection of backing materials based on water
3. Terminology
absorption characteristics.
3.1 Definitions—Refer toTerminology C717 for the follow-
6. Apparatus
ing terms used in this test method: joint filler, sealant, and
sealant backing. 6.1 Balance, sensitive to 0.1 g (0.004 oz).
6.2 Rule, steel, graduated to 1.0 mm (; ⁄16 in.).
6.3 Shallow Pan for Water, at least 50 mm (2 in.) deep and
This test method is under jurisdiction of ASTM Committee C24 on Building
350 mm (14 in.) long.
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
6.4 Paraffın Wax.
General Test Methods.
Current edition approved May 1, 2008. Published June 2008. Originally
7. Sampling
approved in 1984. Last previous edition approved in 2002 as C1016 – 02. DOI:
10.1520/C1016-02R08.
7.1 Take samples from manufactured product. The number
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
of samples for each lot shall be agreed upon between the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
purchaser and the seller. A sample shall consist of three test
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specimens.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C1016–02 (2008)
7.2 Sample selection is important, therefore, the sample cool. Repeat the dipping three times until the ends are
should be representative of typical backing production. Care completely sealed by approximately 1 mm ( ⁄16 in.) of paraffin
should be exercised in choosing samples that have not been wax on each cut end.
damaged by inappropriate storage or handling. 10.2.4 After the wax cools, measure the mass of each
conditioned specimen to the nearest 0.1 g (0.004 oz) and
7.3 Samples should be of uniform shape for their length to
enable accurate calculation of volume. record.
10.2.5 Submerge the entire specimen in water in a shallow
pan. Secure the specimen so the top side, in the long dimen-
8. Test Specimens
sion, is approximately 25 mm (1 in.) below the surface.
8.1 A test specimen is a piece of backing 300 65mm(12
10.2.6 After immersion for 24 h, remove the specimen by
6 0.25 in.) in length. Ideally the cross-sectional backing area
picking it up 3 in. (75 mm) from the ends and place it
2 2
should be from 2 to 3 cm (0.3 to 0.5 in. ). Cut three test
immediatelyontheweighingplatform.Donotpressorsqueeze
specimens from each sample.
the specimen. Within the next 1 min, record the mass of the
specimen to the nearest 0.1 g (0.004 oz).
9. Conditioning
10.2.6.1 The weighing platform should be large enough to
9.1 Condition the test specimens at 23 6 2°C (73 6 3°F)
support the entire specimen and serve as a tray to catch any
and 50 6 5 % relative humidity for a minimum of 24 h prior
water that may leave the specimen during mass determination.
to testing, provided the specimens feel and appear dry. Speci-
11. Calculation
mens that appear damp should be dried in accordance with the
manufacturer’s recommendations before the 24 h conditioning
11.1 Calculateeachspecimen’sdrycross-sectionalarea(A )
period starts.
using the appropriate formula for the geometry of the cross-
section shape.
10. Procedure
11.2 Calculate the dry, original volume, (V ), as follows:
10.1 Procedure A:
V 5 1 3 A
0 0 0
10.1.1 Measure the mass of each conditioned specimen to
where:
the nearest 0.1 g (0.004 oz) and record.
3 3
V = original dry volume, cm (in. ),
10.1.2 Measure and record the length of each specimen to
2 2
A =
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C1016–94a Designation:C1016–02 (Reapproved 2008)
Standard Test Method for
Determination of Water Absorption of Sealant Backing
(Joint Filler) Material
This standard is issued under the fixed designation C 1016; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers a laboratory procedure for determining the water absorption characteristics of sealant backing and
joint filler materials, hereinafter referred to as backing.
1.2 ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsinparenthesesareforinformationonly.
1.3
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other ASTM
committees or other organizations.
1.4 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.
2. Referenced Documents
2.1 ASTM Standards:
C 717Terminology of Building Seals and Sealants
E691Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method Terminology of Building
Seals and Sealants
3. Terminology
3.1 Definitions—Refer to Terminology C 717 for the following terms used in this test method: joint filler, sealant, and sealant
backing.
4. Summary of Test Method
4.1 The mass of three measured specimens of backing is determined. The specimens are then placed in room temperature water
for 24 h after which the specimens are removed from the water and their mass measured. The change in mass is calculated, and
the result is expressed as a change in mass per unit of volume.
4.2 ProcedureAmeasures the maximum amount of water that can enter the backing. Procedure B measures the amount of water
that can enter the backing with the backing cut ends sealed.
5. Significance and Use
5.1 This test method determines the amount of water absorbed by a backing material. Water absorption by the backing may
affect sealant performance.
5.2 This test method is also useful when designating proper storage of back up material and in determining appropriate
precautions when using backing materials.
5.3 The specifier, using this test method, can exercise judgment in the selection of backing materials based on water absorption
characteristics.
This test method is under jurisdiction ofASTM Committee C-24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.32 on Chemically
Curing Sealants.
Current edition approved Sept. 15, 1994. Published November 1994. Originally published as C1016–84. Last previous edition C1016–94.
This test method is under jurisdiction ofASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on General Test
Methods.
Current edition approved May 1, 2008. Published June 2008. Originally approved in 1984. Last previous edition approved in 2002 as C 1016 – 02.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 04.07.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C1016–02 (2008)
6. Apparatus
6.1 Balance, sensitive to 0.1 g (0.004 oz).
6.2 Rule, steel, graduated to 1.0 mm (; ⁄16 in.).
6.3 Shallow Pan for Water, at least 50 mm (2 in.) deep and 350 mm (14 in.) long.
6.4 Paraffın Wax.
7. Sampling
7.1 Take samples from manufactured product. The number of samples for each lot shall be agreed upon between the purchaser
and the seller. A sample shall consist of three test specimens.
7.2 Sample selection is important, therefore, the sample should be representative of typical backing production. Care should be
exercised in choosing samples that have not been damaged by inappropriate storage or handling.
7.3 Samples should be of uniform shape for their length to enable accurate calculation of volume.
8. Test Specimens
8.1 Atest specimen is a piece of backing 300 65mm(12 6 0.25 in.) in length. Ideally the cross-sectional backing area should
2 2
befrom2to3cm (0.3 to 0.5 in. ). Cut three test specimens from each sample.
9. Conditioning
9.1 Conditionthetestspecimensat23 62°C(73 63°F)and50 65 %relativehumidityforaminimumof24hpriortotesting,
provided the specimens feel and appear dry. Specimens that appear damp should be dried in accordance with the manufacturer’s
recommendations before the 24 h conditioning period starts.
10. Procedure
10.1 Procedure A:
10.1.1 Measure the mass of each conditioned specimen to the nearest 0.1 g (0.004 oz) and record.
10.1.2 Measure and record the length of each specimen to the nearest 1 mm ( ⁄16 in.).
10.1.3 Measure and record the appropriate end dimensions of each specimen to the nearest 1 mm ( ⁄16 in.), to permit a
cross-sectional area calculation.
10.1.3.1 The procedures in 10.1.2 and 10.1.3 are critical to the precision and bias of the test. Care is required to obtain accurate
measurements.
10.1.4 Submerge the entire specimen in water in a shallow pan. Secure the specimen so the top side in the long dimension, is
approximately 25 mm (1 in.) below surface.
10.1.5 After immersion for 24 h, remove the specimen by picking it up 3 in. (75 mm) from the ends and place it immediately
on the weighing platform. Do not press or squeeze the specimen. Within the next 1 min, record the mass of the specimen. Within
the next 1 min, record the mass of t
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