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Waterproof coil load tester, waterproof coil tensile tester, waterproof coil static load tester Scope of application:
The static load puncture test of asphalt and polymer roofing waterproofing membrane is specified. The long-term static load on the coil is different from the mechanical pressure of short-time dynamic load. This method represents the static type of pressure that exists for a certain period of time.
This section can also be used for other waterproof materials.
Test principle:
The principle of the test is to concentrate the load on the upper surface of the coil through a puncture tool within a certain period of time, and the coil is placed on the specified soft support or hard support.
Selection of test equipment:
ZCW waterproof membrane testing machine guide rails ensure that the load beam is in the vertical position, and can be moved in the vertical direction by the guide rail puncture tool, at least from the surface of the test piece.
(40 ± 2) mm.
Load bar The bottom end of the load bar has a puncture tool with a wafer for supporting the load. The load beam and puncture tool should be adjusted to include 2 kg of support disc mass,
Sample selection:
The test piece size of Method A (550 mm*550 mm) is 2 mm, and the test piece size of Method B (300 mm*300 mm) is 2 mm.
Sampling at the entire width of the web except the edge of 100 mm, each method (A or B) shall take 3 specimens per load condition.
The test piece is placed for at least 24 h under the specified test conditions.
Steps:
The test was carried out at (23 ± 2) °C. For each load interval, a new test piece should be used for the test, and a new polystyrene plate should be used for the soft support test. The test piece is placed on a horizontal support with the upper surface facing up. The puncture tool is placed in the center of the test piece. The test is carried out in parallel with three test pieces for each load interval starting from 5 kg. The load is increased by 5 kg each time until the puncture occurs, or until the maximum load is 20 kg, and the load process for each load interval is 24 h. Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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