Abstract: A method for arranging engagement means in a concrete body. These engagement means can come into contact with securing means, resulting in a coupling of considerable strength between the concrete part and the said securing means. The engagement means may comprise a screw thread, bayonet-like structure or the like arranged in the concrete. However, it is also possible for the engagement means to be designed as a separate component which is placed into the concrete material. This separate component is then provided with the engagement means proper in that it is provided with a screw thread, bayonet catch or the like. In this way, it is possible to secure construction parts to the concrete part, to hoist the concrete part and to carry out further actions with this part. It is also possible to adjust the concrete part with the aid of adjustment bolts which engage in the engagement means.

Abstract: A method for providing a connection between concrete parts. One of the concrete parts is provided with a number of encased, projecting reinforcing bars. The other concrete part is provided with a series of cavities in which said reinforcing bars are placed and are then fixed to the concrete part in question by being encased. The cavities are produced by encasing a body, which at least on the outside comprises a polysiloxane material, in the concrete. When a tensile force is applied to the body a considerable reduction in its cross section takes place, so that it is possible for the non-sticking body to be removed from the concrete in a simple way, after which the desired cavity remains.

Abstract: An anchor rod having at least one section provided with ribs or other raised portions or profiling and a threaded section at one or both ends, and having a variable transition section between the threaded section(s) and the profiled section; and a method of making the anchor rod.