Reproductive concrete is a new type of concrete that made from the disuse concrete after a series of courses of disposal

such as break up

washing

filtration

classification

combination on a certain proportion and so on. The research of the mechanical characteristics of reproductive concrete is very little. This article researches the mechanical characteristics of reproductive concrete by a series of tests. The influences of the substitute ratio and hydrated ratio on the mechanical characteristics of reproductive concrete are studied. The ultrasonic parameters when reproductive concrete is loaded are detected; the rule of the development of ultrasonic parameter with the change of the distortion of reproductive concrete under static load is analyzed. In order to research the cyclic dynamical characteristics of the reproductive concrete

we have made a experiment that operate cyclic load on the reproductive concrete

in order to research the rule of the development of the distortion of the reproductive concrete. All of these can provide a referrence for similar engineerings.