GB/T 13477.13-2019 is a national standard for the determination of adhesion of building sealants after cold stretching and hot compression. It applies to elastic sealants used in building and civil engineering and specifies core content such as terminology definitions, test principles, equipment, procedures, and reporting. By simulating repeated cycles of cooling-stretching and heating-compression, it evaluates the adhesive and cohesive properties of sealants after exposure to temperature changes and mechanical stress, providing a basis for material quality control. Relevant testing instruments include universal material testing machines, high-low temperature environmental chambers, paired with precision displacement measurement devices and microscopes. These enable load application, environmental simulation, and failure mode analysis, ensuring the accuracy of the tests.
| Status | Active | ||
|---|---|---|---|
| CCS | Q24 | ICS | 91.100.50 |
| Release Date | 2019-06-04 00:00:00 | Implementation Date | 2020-05-01 00:00:00 |
