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ASTM D6608-00(2006)

Historical Reaffirmation

Standard Practice for the Identification of Trinidad Lake Asphalt in Asphalt Mixes

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1.1 This practice shall be used for the qualitative determination of Trinidad Lake Asphalt in Trinidad Lake Modified Asphalt Cements obtained from production blends or recovered binder from asphalt paving mixtures.

1.2 It is limited to the binder content of Trinidad Lake Modified Asphalt (Specification D 5710) used in the construction of asphalt pavements.

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.


Bitumen contains sulfur compounds most of which are removed during refining, the resulting asphalt cement also contains sulfur compounds which are released at the temperatures above 230°C (446°F). Trinidad Lake Modified Asphalt contains sulfur compounds, which are released at lower temperatures between 170°C (338°F) and 230°C (446°F). The release of sulfur from Trinidad Lake Modified Asphalt tarnishes the copper strip and appears to be related directly to the total TLA content. The copper strip test is designed to assess the qualitative presence of TLA in asphalt cements.

SDO ASTM: ASTM International
Document Number D6608
Publication Date June 1, 2006
Language en - English
Page Count 3
Revision Level 00(2006)
Supercedes
Committee D04.47
Publish Date Document Id Type View
Nov. 1, 2020 D6608-20 Revision
Dec. 1, 2012 D6608-12 Revision
Dec. 10, 2000 D6608-00 Revision
Oct. 1, 2024 D6608-20R24 Reaffirmation
June 1, 2006 D6608-00R06 Reaffirmation