Test Background
Polymer waterproof membrane is a rollable sheet-shaped waterproof material made of synthetic rubber, synthetic resin or a mixture of the two as the base material, adding an appropriate amount of additives and fillers, and pressing it through a series of processes. The low-temperature bending test of polymer waterproofing membranes can determine the bending performance of polymer roofing waterproofing membranes exposed to low temperatures.
Zhongke Testing Reliability Experiment Center has the capability of reliability testing of various building waterproofing membranes, and provides professional low-temperature bending test services for polymer waterproofing membranes.
Scope of tests
There are many types of polymer waterproof membranes, such as self-adhesive red core polymer modified asphalt waterproof membrane, self-adhesive strong cross-membrane polymer waterproof membrane, polyvinyl chloride PVC polymer waterproof membrane, thermoplastic polyolefin TPO polymer waterproof membrane, polyethylene polyester polypropylene polymer waterproof membrane, chlorinated polyethylene CPE polymer waterproof membrane, HDPE non-asphalt-based self-adhesive film polymer waterproof membrane.
Test method
The principle of the test is to place the bent specimen on a suitable bending device, and place the bent specimen at the specified low temperature for 1 hour. Depress the bending device within 1 s and keep it in this position for 1 s.
Take out the specimen at room temperature and inspect the bending area with a 6x magnifying glass. Repeat the bending procedure in accordance with the regulations. The low-temperature bending temperature of the coil is the lowest 5°C interval that does not cause cracks or fractures in any specimen.
Test standard:
GB/T 328.15-2007 Test methods for building waterproofing membranes Part 15: Polymer waterproofing membranes Low-temperature bending properties
EN 495-5: 2000 Flexible waterproofing membranes - Determination of low temperature bending properties - Part 5: Roofing waterproofing plastic and rubber membranes
GB/T 328.1 Test methods for construction waterproofing membranes Part 1: Asphalt and polymer waterproofing membranes Sampling rules
GB/T 328.5 Test methods for building waterproofing membranes Part 5: Thickness and mass per unit area of polymer waterproofing membranes
