Effects of the properties and composition of the concrete on the transmission and anchorage lengths of prestressed strand

摘要

An experimental study applying the test method ECADA has been carried out to analyze the influence that variables related to the properties and composition of the concrete have on the bond behaviour of prestressed strand to concrete. For the differents dosages of concrete chosen, the transmission and anchorage lengths of the strand are determined. With the experimental study, the viability of the new designed test method for the characterization of the bond behaviour of prestressed strand to concrete, its repetitively and the method based on the measurement of the force are verified.