Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO TP 89:2013
• Năm ban hành / Publication date: 2013
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Method of Test for Measuring Adhesion of Hot-Poured Crack Sealant Using Direct Adhesion Tester

Thay thế cho / Replace

AASHTO TP 89:2010

• Số trang / Page: 13

Phạm vi áp dụng / Scope of standard

The direct adhesion test is used to determine the adhesion
strength of hot-poured crack sealant at the application
temperatures.

The adhesion test is a test of fracture. The object of the test
is to apply tensile forces to the interface between sealant and
aluminum end pieces. Sealant is confined between two
halfcylindrical aluminum end pieces. The applied force and
displacement can be recorded as functions of time. Energy required
to break the bond can be calculated by measuring the area under the
loaddisplacement curve. This energy can be considered a measure of
bonding. In addition, the maximum force to failure can be reported
as adhesion strength.

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 and follow appropriate
health and safety practices and determine the applicability of
regulatory limitations prior to use.