ASTM D6690-21

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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: D6690 − 15 D6690 − 21
Standard Specification for
Joint and Crack Sealants, Hot Applied, for Concrete and
Asphalt Pavements
This standard is issued under the fixed designation D6690; 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 specification covers joint and crack sealants of the hot applied hot-applied type intended for use in sealing joints and
cracks in Portland Cement Concrete and Asphaltic Concrete Pavements.portland cement concrete and asphaltic concrete
pavements.
1.2 This specification does not purport to cover the properties required of sealants for use in areas of Portland Cementportland
cement concrete or asphaltic pavement subject to jet fuel or other fuel spillage such as vehicle and/or aircraft refuel and
maintenance areas.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory requirementslimitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
D36D36/D36M Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
D5167 Practice for Melting of Hot-Applied Joint and Crack Sealant and Filler for Evaluation
D5249 Specification for Backer Material for Use with Cold- and Hot-Applied Joint Sealants in Portland Cement Concrete and
Asphalt Joints
D5329 Test Methods for Sealants and Fillers, Hot-Applied, for Joints and Cracks in Asphalt Pavements and Portland Cement
Concrete Pavements
This specification is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.33 on Formed
In-Place Sealants for Joints and Cracks in Pavements.
Current edition approved Dec. 1, 2015May 1, 2021. Published January 2016May 2021. Originally approved in 2001. Last previous edition approved in 20122015 as
D6690 – 12.D6690 – 15. DOI: 10.1520/D6690-15.10.1520/D6690-21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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D6690 − 21
2.2 Federal Specification:
SS-S-1410C
3. General Requirements
3.1 The sealant shall be composed of a mixture of materials that will form a resilient and adhesive compound capable of effectively
sealing joints and cracks in concrete and asphaltic pavements against the infiltration of moisture and foreign material throughout
repeated cycles of expansion and contraction with temperature changes, and that will not, at ambient temperatures, flow from the
joint or be picked up by vehicle tires. The material shall be capable of being brought to a uniform pouring consistency suitable
for completely filling the joints without inclusion of large air holes or discontinuities and without damage to the material. It shall
remain relatively unchanged in application characteristics for at least 6 h at the recommended application temperature in the field.
4. Classification
4.1 Type I—A joint and crack sealant capable of maintaining an effective seal in moderate climates. The material is tested for low
temperature low-temperature performance at –18°C–18 °C using 50 % extension.
4.2 Type II—A joint and crack sealant capable of maintaining an effective seal in most climates. Material is tested for low
temperature low-temperature performance at –29°C–29 °C using 50 % extension.
4.3 Type III—A joint and crack sealant capable of maintaining an effective seal in most climates. Material is tested for low
temperature low-temperature performance at –29°C–29 °C using 50 % extension. Special tests are included (formerly Federal Spec
SS-S-1401C).
4.4 Type IV—A joint and crack sealant capable of maintaining an effective seal in climates experiencing very cold temperatures.
Material is tested for low temperature low-temperature performance at –29°C–29 °C using 200 % extension.
NOTE 1—It is the responsibility of the user agency to determine which type is most applicable to their conditions.
5. Physical Requirements
5.1 Maximum Heating Temperature—The maximum heating temperature is the highest temperature to which a sealant can be
heated,heated and still conform to all the requirements specified herein. For purposes of testing as specified hereinafter, the
application temperature shall be the same as the maximum heating temperature. The maximum heating temperature shall be set
forth by the manufacturer, shall be shown on all containers, and shall be provided to the testing agency before any laboratory tests
are begun.
5.2 The sealant shall conform to the requirements prescribed in Table 1.
6. Sampling and Heating
6.1 Sampling:
6.1.1 Samples may be taken at the plant or warehouse prior to delivery or at the time of delivery, at the option of the purchaser.
If sampling is done prior to shipment, the inspector representing the purchaser shall have free access to the material to be sampled.
The inspector shall be afforded all reasonable facilities for inspection and sampling which shall be conducted so as not to interfere
unnecessarily with the operation of the works.
6.1.2 Samples shall consist of one of the manufacturer’s original sealed containers selected at random from the lot or batch of
finished material. A batch or lot shall be considered as all finished material that was manufactured simultaneously or continuously
as a unit between the time of compounding and the time of packaging or placing in shipping containers.
6.1.3 Obtain the sealant portion for testing from the selected manufacturer’s original sealed container in accordance with Practice
D5167. The sample portion added to and heated in the melter shall weigh 800 6 50 g for Types I, II, IV, and 1600 6 50 g for
Type III. Both pots of the melter described in Practice D5167 shall be used for Type III.
6.2 Heating—Heat the material in accordance with Practice D5167.
D6690 − 21
TABLE 1 Sealant Requirements
Type I Type II Type III Type IV
Cone Penetration 90 max. 90 max. 90 max. 90-15090–150
at 25°C25 °C
Softening Point, °C 80 minimum 80 minimum 80 minimum 80 minimum
Bond, non-immersed Two out of three 25 ± 0.4 mm Three 12.5 ± 0.2 mm Three 12.5 ± 0.2 mm Three 12.5 ± 0.2 mm
A
specimens pass 5 cycles Specimens Specimens Specimens
A A A
at 50 % ext. at -18°C
pass 3 cycles at 50 % pass 3 cycles at 50 % pass 3 cycles at 200 %
ext. at -29°C ext. at -29°C ext. at -29°C
Bond, non-immersed Two out of three 25 ± 0.4 mm Three 12.5 ± 0.2 mm Three 12.5 ± 0.2 mm Three 12.5 ± 0.2 mm
A
specimens pass 5 cycles specimens specimens specimens
A A A
at 50 % ext. at –18 °C
pass 3 cycles at 50 % pass 3 cycles at 50 % pass 3 cycles at 200 %
ext. at –29 °C ext. at –29 °C ext. at –29 °C
Bond, water immersed -- -- Three 12.7 mm specimens --
A
pass 3 cycles at 50 %
ext. at -29°C
Bond, water immersed -- -- Three 12.5 ± 0.2 mm --
specimens
A
pass 3 cycles at 50 %
ext. at –29 °C
Resilience, % -- 60 min. 60 min. 60 min.
Oven Aged Resilience,% -- -- 60 min. --
Oven Aged Resilience, % -- -- 60 min. --
B B B B
Asphalt Compatibility Pass Pass Pass Pass
A
The development at any time during the test procedure of a crack, separation, or other open
...