The static constant loading tester is designed to determine the resistance to an axial static constant load of the plastic manhole. At the end of the test, the sample appearance determines the deformation ration of the plastic manhole.
Static constant loading tester is mainly used to determine the resistance to the axial static constant load of the plastic manhole.
A constant force is steadily loaded on the axial direction of the manhole for the specified time, when the test is finished, observing the sample appearance (deformation, collapse, crack or crazing), determine the deformation in the axial direction and calculate the deformation ratio of the manhole.
JJICL is also suitable for ring stiffness test, flattening test, ring softness test of thermoplastic pipes.