Overview of impact tester for external wall insulation system:
The impact resistance tester is manufactured according to the material requirements of external insulation systems for external walls. The steel balls meet the requirements of the GB / T308 standard and high-carbon chromium bearing steel with a nominal diameter of 50.8mm / 63.6mm. composition.
Main technical parameters of impact tester for external wall insulation system:
★ Steel ball diameter 50.8mm (535g) /63.6mm (1045g)
★ High impact height: 1200mm
★ Net weight: ≈80kg
Use and maintenance of impact tester for external wall insulation system
★ Production of test pieces
The size of the sample should be greater than 600 * 400mm, and each impact resistance ** is one. The samples were cured for 14 days under standard curing conditions, then immersed in room temperature water for 7 days, facing down, and immersed in water for 3-10mm. After the sample was taken out of the water, it was adjusted in the test environment for 7 days.
Place the sample facing layer upwards and place it horizontally on the base of the impact-resistant instrument, with the sample firmly against the base.
3J **: Impacted by a steel ball with a nominal diameter of 50.8mm, the vertical height of the bottom point of the steel ball from the impacted sample is 0.57 meters. This impact strength is 3J **.
10J **: Impacted by a steel ball with a nominal diameter of 63.5mm, the vertical height of the bottom point of the steel ball from the impacted specimen is 0.98 meters. This impact strength is 10J **.
Don't impact 10 times per **. The distance between the impact point and the edge is not less than 100mm. The impact on the surface of the sample and the cracks around it are regarded as the impact point failure.
Experimental results of impact tester for external wall insulation system
In the 3J test, if there are less than 4 failure points in 10 impact points, the evaluation is 3J **,
In the 10J test, if there are less than 4 failure points in 10 impact points, the evaluation is 10J **,