BOND IN PRE-STRESSED CONCRETE.

Synopsis. Existing literature on pre-stressed concrete failed to provide sufficient information on certain points which, basically, me dependent on the bond in pre-stressed concrete. Experiments were carried out, therefore, to investigate those points by further examination of the subject of the pre-stressed-concrete bond; those experiments are described in this Paper. The Paper enumerates the points which were investigated and, after dealing briefly with the variables concerned in the pre-stressed-concrete bond, describes the materials and apparatus used in the experiments, the methods of carrying out the tests and, finally, the experiments carried out, first on the materials and then on the test specimens and beams. A summary of the main conclusions reached is given at the end of the Paper.