GB/T 328.25-2007 "Test methods for building waterproof sheets - Part 25: Bitumen, plastic and rubber sheets - Resistance to static loading" specifies the method for testing the performance of bitumen, plastic, and rubber waterproof sheets in resisting static (sustained) pressure loads. This method involves applying a specified load to a sheet sample using a steel ball or cylinder of a specific diameter and maintaining it for a specified duration. Afterward, the residual puncture depth of the sample is measured, or it is checked for penetration to evaluate the mechanical stability of the sheet under long-term constant pressure (such as soil cover, protective layers, etc.).
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Q17 | ICS | 91.120.30 |
| Release Date | 2007-03-26 00:00:00 | Implementation Date | 2007-10-01 00:00:00 |