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A flexible function layer between concrete base and pavement slab is constructed to avoid slab breakdowns caused by poor vibration damping and energy absorption of cement structures. Practical experiments as well as testing and analyzing systems are employed to collect the frequency signals from the pavement structure vibration for a small pavement slab structure subjected to a ball-drop impact. The results reveal that the vibration can be damped out and energy can be absorbed using such a flexible function layer. Based on the contrastive tests, the pavement slab vibration is a declining process under the impact load. The vibration damping effect is more significant with the increase in thickness of the function layer, but becomes slower if the layer reaches a certain thickness. The tests also show that the flexible function layer has a significant role in the vibration damping and energy absorption.

Vibration response of cement structures under conditions of impact loads