Damping ratio is the main index representing the property of materials in reducing vibration. Free vibration method is employed to measure the damping ratio. A set of fundamental data are obtained for the damping ratio of polymer concrete with carboxyl butyl benzene at small deformation. The analyses of experimental results indicate that: the testing procedure for obctaining damping ratio are reliable; for concrete in the same class
the damping ratio increases with increasing carboxyl butyl benzene; Young’s modulus decreases with increasing carboxyl butyl benzene; with the carboxyl butyl benzene ratio between 10% and 15%
the damping ratio
Young’s modulus and compressive strength can get a good combination.