Abstract: It has been conducted a series of special studies on mechanical properties of the retard-cohesive adhesive,tested tensile strength value and flexural strength value of retard-cohesive adhesive and intensity changing value during solidifying process,educed the modulus of elasticity and Poisson's ratio of adhesive material.Through testing different batches of samples,the results indicate that the adhesive has good mechanical properties,also has the requirements as the core media for retard-bonded prestressed concrete technology,and has a mechanical effect being on a par with bonded one.