The TR 5260 – Dynamic Crack Resistance Tester is designed in accordance with JG/T157-2004. The automatic dynamic crack resistance testing machine is suitable for testing exterior wall leveling putty composed of cement, polymer powder, synthetic resin emulsion or other materials as the main binder, with fillers and additives.
Due to the uneven dry and wet changes, thermal expansion and contraction, structural settlement, and incomplete design and construction of buildings, almost all buildings have surface capillary cracks, surface penetration cracks, and structural cracks to varying degrees.
Cracks in the exterior wall not only greatly reduce the protective effect on the exterior wall of the building, but also have a certain impact on the aesthetics of the finished finish. In order to make up for the above defects, a layer of exterior wall putty must be applied to the wall before painting the exterior wall latex paint; The quality of exterior wall putty is the key to it.
TR 5260 – Dynamic Crack Resistance Tester
·Cutting edge length: 150mm
·Cutting edge angle: 30 degrees
·Maximum lift: 20mm
·Rising rate: 3mm/min
·Frame size: 200mmx150mmx2mm
The motor drags the ejector rod for upward movement after gear deceleration, and the cutting edge generates an upper jacking force, so that the asbestos cement board gradually produces microcracks in the specified area and controls the slow expansion of cracks, and observes the cracking of the putty layer, so as to characterize the ability of putty to resist the crack propagation of the substrate.
